678 UXUS45 KRIW 131200 FZLRIW RIW 1200 RADAT 50090=  973 UXUS44 KMAF 131200 FZLMAF MAF 1200 RADAT 50120=  875 UXAK48 PAKN 131200 FZLAKN AKN 1200 RADAT ZERO=  294 UXAK48 PACD 131200 FZLCDB CDB 1200 RADAT ZERO=  070 UXAK49 PAFA 131200 FZLFAI FAI 1200 RADAT 87L005///015=  146 UXAK48 PABE 131200 FZLBET BET 1200 RADAT ZERO=  132 UXUS45 KREV 131200 FZLREV REV 1200 RADAT 80054=  035 UXUS42 KRAH 131200 FZLGSO GSO 1200 RADAT 06129=  422 UXUS42 TJSJ 131200 FZLSJU SJU 1200 RADAT 66136=  632 UXUS41 KBUF 131201 COR FZLBUF BUF 1200 RADAT 98112=  999 UXAK47 PANT 131200 FZLANN ANN 1200 RADAT 74022=  787 UXUS44 KJAN 131200 FZLJAN JAN 1200 RADAT 73132=  522 UXAK49 PAOM 131200 FZLOME OME 1200 RADAT ZERO=  882 UXUS41 KPBZ 131200 FZLPBZ PBZ 1200 RADAT 00113=  267 UXAK47 PAYA 131200 FZLYAK YAK 1200 RADAT 94010=  755 UXUS46 KSEW 131200 FZLUIL UIL 1200 RADAT 97041=  517 UXUS42 KFFC 131200 FZLFFC FFC 1200 RADAT 02130=  625 UXUS42 KMHX 131200 FZLMHX MHX 1200 RADAT 25130=  143 UXAK48 PADQ 131200 FZLADQ ADQ 1200 RADAT 58003=  957 UXAK49 PAMC 131200 FZLMCG MCG 1200 RADAT ZERO=  463 UXUS44 KBRO 131200 FZLBRO BRO 1200 RADAT 31140=  903 UXUS41 KGYX 131200 FZLGYX GYX 1200 RADAT 94097=  704 UXUS46 KSGX 131200 FZLNKX NKX 1200 RADAT 99071=  085 UXUS41 KOKX 131200 FZLOKX OKX 1200 RADAT 72103=  162 UXUS46 KMTR 131200 FZLOAK OAK 1200 RADAT 85058=  426 UXUS42 KKEY 131201 COR FZLKEY KEY 1200 RADAT 02156=  037 UXKA40 PTKK 131200 FZLTKK TKK 1200 RADAT 49159=  843 UXUS41 KALY 131200 FZLALY ALY 1200 RADAT 72100=  186 UXZS40 NSTU 131200 FZLPPG PPG 1200 RADAT 71153=  545 UXUS41 KRNK 131200 FZLRNK RNK 1200 RADAT 03125=  154 UXUS46 KPQR 131200 FZLSLE SLE 1200 RADAT 00048=  201 UXUS42 KCHS 131200 FZLCHS CHS 1200 RADAT 10137=  792 UXUS45 KBOI 131200 FZLBOI BOI 1200 RADAT 89061=  018 UXUS43 KILX 131200 FZLILX ILX 1200 RADAT 40115=  819 UXUS45 KVEF 131200 FZLVEF VEF 1200 RADAT 14087=  652 UXUS43 KBIS 131200 FZLBIS BIS 1200 RADAT 69091=  268 UXUS44 KEWX 131200 FZLDRT DRT 1200 RADAT 73126=  701 UXUS41 KLWX 131200 FZLIAD IAD 1200 RADAT 91104=  089 UXKA40 PTYA 131200 FZLT11 T11 1200 RADAT 03167=  769 UXUS43 KDTX 131200 FZLDTX DTX 1200 RADAT 35108=  337 UXMH40 PKMR 131200 FZLKMR KMR 1200 RADAT 96149=  330 UXAK48 PAFC 131200 FZLANC ANC 1200 RADAT 59015=  885 UXUS42 KJAX 131200 FZLJAX JAX 1200 RADAT 03142=  701 UXUS41 KCAR 131200 FZLCAR CAR 1200 RADAT 95M019034088=  393 UXKA40 PTTP 131200 FZLTTP TTP 1200 RADAT 42168=  214 UXKA40 PTKR 131200 FZLTKR TKR 1200 RADAT 03170=  767 UXUS44 KOHX 131200 FZLOHX OHX 1200 RADAT 87116=  419 UXUS44 KLIX 131200 FZLLIX LIX 1200 RADAT 42136=  327 UXUS44 KFWD 131200 FZLFWD FWD 1200 RADAT 48122=  492 UXUS42 KTBW 131200 FZLTBW TBW 1200 RADAT 02154=  419 UXUS41 KILN 131200 FZLILN ILN 1200 RADAT 66111=  840 UXGM40 PGUM 131200 FZLGUM GUM 1200 RADAT 96162=  504 UXUS45 KGGW 131200 FZLGGW GGW 1200 RADAT 92074=  892 UXUS44 KBMX 131200 FZLBMX BMX 1200 RADAT 70130=  951 UXUS43 KSGF 131200 FZLSGF SGF 1200 RADAT 54119=  213 UXUS44 KOUN 131200 FZLOUN OUN 1200 RADAT 59119=  021 UXHW40 PHTO 131200 FZLITO ITO 1200 RADAT 53157=  145 UXHW40 PHLI 131200 FZLLIH LIH 1200 RADAT 00133=  122 UXAK49 PABR 131200 FZLBRW BRW 1200 RADAT ZERO=  517 UXUS43 KTOP 131200 FZLTOP TOP 1200 RADAT 68118=  726 UXUS43 KAPX 131200 FZLAPX APX 1200 RADAT 84096=  160 UXUS44 KEPZ 131200 FZLEPZ EPZ 1200 RADAT 61116=  817 UAFJ01 NFFN 131200 NIL  077 UXUS43 KMPX 131200 FZLMPX MPX 1200 RADAT 36101=  842 UXUS97 KPUB 131208 SRGPUB Soaring Forecast National Weather Service Pueblo, Colorado 0608 MDT Monday, April 13, 2026 This forecast is for Monday, April 13, 2026: If the trigger temperature of 51.2 F/10.7 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 974 ft/min (4.9 m/s) Maximum height of thermals.................. 22635 ft MSL (15008 ft AGL) Forecast maximum temperature................... 70.0 F/21.6 C Time of trigger temperature.................... 0900 MDT Time of overdevelopment........................ 1700 MDT Middle/high clouds during soaring window....... Broken/overcast opaque middle Surface winds during soaring window............ 20 mph or less Height of the -3 thermal index................. 17385 ft MSL (9758 ft AGL) Thermal soaring outlook for Tuesday 04/14...... Good Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:25:00 / 19:34:26 MDT Total possible sunshine........... 13 hr 9 min 26 sec (789 min 26 sec) Altitude of sun at 12:59:43 MDT... 60.28 degrees Upper air data from numerical model forecast valid on 04/13/2026 at 0600 MDT Freezing level.................. 10910 ft MSL (3283 ft AGL) Convective condensation level... 19311 ft MSL (11684 ft AGL) Lifted condensation level....... 20401 ft MSL (12773 ft AGL) Lifted index.................... -1.2 K index......................... -20.1 Height Temperature Wind Wind Spd Lapse Rate ConvectionT Thermal Lift Rate ft MSL deg C deg F Dir kt m/s C/km F/kft deg C deg F Index fpm m/s -------------------------------------------------------------------------------- 50000 -59.0 -74.2 230 52 27 -3.6 -2.0 M M M M M 45000 -64.6 -84.3 235 75 39 0.4 0.2 M M M M M 40000 -61.9 -79.4 235 79 41 1.7 0.9 M M M M M 38000 -58.6 -73.5 235 78 40 7.8 4.3 M M M M M 36000 -53.9 -65.0 235 76 39 7.8 4.3 M M M M M 34000 -49.3 -56.7 230 74 38 7.2 4.0 M M M M M 32000 -45.0 -49.0 230 70 36 7.2 4.0 M M M M M 30000 -40.8 -41.4 230 65 33 6.7 3.7 28.4 83.0 5.6 M M 29000 -38.7 -37.7 230 62 32 6.7 3.7 27.1 80.8 4.7 M M 28000 -36.7 -34.1 230 58 30 6.7 3.7 26.0 78.7 3.8 M M 27000 -34.7 -30.5 230 55 28 7.1 3.9 25.0 77.0 3.1 M M 26000 -31.9 -25.4 230 52 27 7.4 4.1 23.8 74.8 2.1 M M 25000 -29.7 -21.5 230 49 25 7.4 4.1 22.9 73.3 1.4 M M 24000 -27.5 -17.5 230 47 24 7.7 4.2 22.2 71.9 0.8 M M 23000 -25.1 -13.2 230 45 23 7.8 4.3 21.4 70.5 0.2 M M 22000 -22.8 -9.0 230 44 23 7.8 4.3 20.7 69.2 -0.4 1303 6.6 21000 -20.4 -4.7 235 43 22 7.9 4.3 20.1 68.1 -0.9 1203 6.1 20000 -18.0 -0.4 235 42 22 7.9 4.3 19.4 66.8 -1.6 1102 5.6 19500 -16.8 1.8 240 42 21 7.9 4.3 19.1 66.3 -1.8 1051 5.3 19000 -15.7 3.7 240 41 21 7.9 4.3 18.8 65.8 -2.1 1000 5.1 18500 -14.5 5.9 240 41 21 7.9 4.3 18.5 65.3 -2.3 950 4.8 18000 -13.3 8.1 245 41 21 7.9 4.3 18.2 64.7 -2.6 899 4.6 17500 -12.1 10.2 245 41 21 7.7 4.2 17.9 64.2 -2.9 849 4.3 17000 -11.0 12.2 245 38 20 6.9 3.8 17.4 63.4 -3.3 802 4.1 16500 -10.0 14.0 240 36 18 7.0 3.9 17.0 62.5 -3.8 756 3.8 16000 -9.0 15.8 240 34 17 5.5 3.0 16.4 61.5 -4.3 713 3.6 15500 -8.2 17.2 245 33 17 5.6 3.1 15.7 60.2 -5.0 674 3.4 15000 -7.4 18.7 245 33 17 4.9 2.7 15.0 59.0 -5.7 635 3.2 14500 -6.7 19.9 250 31 16 4.6 2.5 14.1 57.5 -6.5 600 3.0 14000 -6.1 21.0 250 29 15 4.9 2.7 13.3 56.0 -7.4 565 2.9 13500 -5.3 22.5 250 27 14 5.4 3.0 12.6 54.6 -8.1 528 2.7 13000 -4.6 23.7 250 25 13 7.8 4.3 11.9 53.4 -8.9 490 2.5 12500 -3.2 26.2 255 25 13 7.1 3.9 11.8 53.2 -9.1 435 2.2 12000 -2.2 28.0 255 26 13 6.8 3.7 11.3 52.3 -9.6 390 2.0 11750 -1.7 28.9 260 26 14 7.4 4.1 11.1 51.9 -9.8 367 1.9 11500 -1.2 29.8 260 27 14 6.8 3.7 10.9 51.6 -10.0 344 1.7 11250 -0.7 30.7 260 29 15 5.9 3.2 10.6 51.1 -10.4 323 1.6 11000 -0.3 31.5 260 30 15 6.0 3.3 10.3 50.6 -10.7 303 1.5 10750 0.1 32.2 260 31 16 6.1 3.4 10.0 50.0 -11.0 283 1.4 10500 0.6 33.1 265 32 17 6.2 3.4 9.7 49.5 -11.4 262 1.3 10250 1.0 33.8 265 34 17 6.7 3.7 9.5 49.1 -11.7 242 1.2 10000 1.5 34.7 270 35 18 7.6 4.2 9.3 48.7 -11.9 219 1.1 9750 2.1 35.8 270 35 18 8.2 4.5 9.1 48.4 -12.1 195 1.0 9500 2.7 36.9 270 34 17 8.6 4.7 9.0 48.3 -12.3 169 0.9 9250 3.3 37.9 270 33 17 7.9 4.3 8.9 48.1 -12.4 143 0.7 9000 3.9 39.0 270 32 16 6.6 3.6 8.7 47.7 -12.6 119 0.6 8750 4.4 39.9 270 29 15 6.6 3.6 8.5 47.3 -12.9 97 0.5 8500 4.8 40.6 265 27 14 6.0 3.3 8.2 46.8 -13.2 74 0.4 8250 5.3 41.5 265 25 13 8.8 4.8 8.0 46.4 -13.5 52 0.3 8000 5.8 42.4 265 22 11 -3.4 -1.9 7.7 45.9 -13.8 31 0.2 7750 3.1 37.6 260 8 4 20.9 11.5 3.5 38.3 -18.1 99 0.5 7500 M M M M M M M M M M M M 7250 M M M M M M M M M M M M 7000 M M M M M M M M M M M M 6750 M M M M M M M M M M M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/13/2026 at 0900 MDT | 04/13/2026 at 1200 MDT | CAPE... 0.0 LI... +3.9 | CAPE... 0.0 LI... +2.4 CINH... 0.0 K Index... -9.0 | CINH... 0.0 K Index... -0.6 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -63.4 -82.1 290 33 17 2.7 1.5 | -63.5 -82.3 285 35 18 2.9 1.6 45000 -59.3 -74.7 290 45 23 2.8 1.5 | -59.0 -74.2 280 48 25 3.4 1.9 40000 -54.3 -65.7 290 47 24 6.8 3.7 | -53.3 -63.9 280 42 22 5.9 3.2 38000 -50.2 -58.4 290 46 24 6.8 3.7 | -49.8 -57.6 280 39 20 5.9 3.2 36000 -46.2 -51.2 290 45 23 6.7 3.7 | -46.2 -51.2 280 37 19 5.7 3.1 34000 -41.3 -42.3 295 42 22 8.4 4.6 | -41.4 -42.5 285 33 17 8.5 4.7 32000 -36.3 -33.3 305 39 20 8.3 4.6 | -36.3 -33.3 295 31 16 8.5 4.7 30000 -32.3 -26.1 300 35 18 6.2 3.4 | -31.9 -25.4 295 29 15 6.9 3.8 29000 -30.4 -22.7 295 32 17 6.2 3.4 | -29.8 -21.6 290 29 15 7.0 3.8 28000 -28.6 -19.5 290 30 16 6.3 3.5 | -27.7 -17.9 290 28 14 6.9 3.8 27000 -26.4 -15.5 290 29 15 7.3 4.0 | -25.7 -14.3 285 26 13 6.5 3.5 26000 -24.2 -11.6 290 28 14 7.3 4.0 | -23.8 -10.8 285 23 12 6.5 3.6 25000 -22.0 -7.6 290 26 13 7.3 4.0 | -21.8 -7.2 280 21 11 6.5 3.6 24000 -19.2 -2.6 290 25 13 7.4 4.1 | -19.1 -2.4 280 19 10 7.4 4.1 23000 -17.0 1.4 290 25 13 7.4 4.1 | -16.9 1.6 280 19 10 7.4 4.1 22000 -14.8 5.4 290 24 12 7.6 4.1 | -14.7 5.5 275 18 9 7.7 4.2 21000 -12.4 9.7 285 24 12 7.9 4.3 | -12.2 10.0 275 18 9 8.1 4.4 20000 -10.1 13.8 280 23 12 7.9 4.3 | -9.8 14.4 270 19 10 8.1 4.4 19500 -8.9 16.0 275 23 12 7.9 4.3 | -8.6 16.5 270 19 10 8.2 4.5 19000 -7.8 18.0 275 23 12 7.4 4.0 | -7.4 18.7 270 19 10 7.2 4.0 18500 -6.6 20.1 275 23 12 7.4 4.1 | -6.3 20.7 270 19 10 7.3 4.0 18000 -5.5 22.1 275 22 11 7.7 4.2 | -5.2 22.6 270 18 9 7.0 3.8 17500 -4.3 24.3 275 22 11 8.0 4.4 | -4.2 24.4 275 18 9 6.5 3.6 17000 -3.1 26.4 280 22 11 8.1 4.5 | -3.3 26.1 280 18 9 6.5 3.6 16500 -2.0 28.4 285 22 11 6.9 3.8 | -2.3 27.9 285 19 10 6.0 3.3 16000 -0.9 30.4 285 21 11 7.1 3.9 | -1.4 29.5 290 19 10 6.0 3.3 15500 0.1 32.2 290 21 11 6.3 3.4 | -0.5 31.1 295 20 10 6.8 3.7 15000 1.0 33.8 290 21 11 6.0 3.3 | 0.5 32.9 295 20 11 7.1 3.9 14500 1.9 35.4 295 21 11 5.9 3.2 | 1.6 34.9 295 21 11 6.9 3.8 14000 2.7 36.9 290 20 10 5.8 3.2 | 2.6 36.7 295 20 11 6.4 3.5 13500 3.6 38.5 290 20 10 6.1 3.3 | 3.5 38.3 295 20 10 6.4 3.5 13000 4.6 40.3 290 19 10 7.8 4.3 | 4.4 39.9 295 18 9 6.3 3.5 12500 5.5 41.9 285 18 9 6.1 3.4 | 5.4 41.7 295 17 9 6.7 3.7 12000 6.5 43.7 290 16 8 8.1 4.4 | 6.4 43.5 295 15 8 7.1 3.9 11750 7.1 44.8 290 15 8 8.0 4.4 | 6.9 44.4 295 14 7 7.1 3.9 11500 7.6 45.7 290 14 7 6.2 3.4 | 7.3 45.1 295 13 7 4.9 2.7 11250 8.0 46.4 290 13 7 5.9 3.2 | 7.6 45.7 295 12 6 5.9 3.2 11000 8.5 47.3 295 13 7 7.2 3.9 | 8.1 46.6 300 11 6 8.4 4.6 10750 9.0 48.2 300 12 6 7.0 3.9 | 8.6 47.5 300 10 5 8.1 4.4 10500 9.5 49.1 305 11 6 6.6 3.6 | 9.1 48.4 305 9 5 8.2 4.5 10250 9.9 49.8 310 11 6 6.1 3.3 | 9.7 49.5 315 8 4 8.8 4.8 10000 10.3 50.5 315 11 6 6.3 3.5 | 10.4 50.7 320 7 4 9.4 5.2 9750 10.7 51.3 320 11 6 6.3 3.5 | 11.0 51.8 325 7 4 9.3 5.1 9500 11.2 52.2 330 11 6 6.2 3.4 | 11.7 53.1 335 6 3 9.1 5.0 9250 11.6 52.9 330 11 6 4.9 2.7 | 12.4 54.3 340 6 3 9.6 5.3 9000 11.9 53.4 335 12 6 4.7 2.6 | 13.1 55.6 345 6 3 10.6 5.8 8750 12.3 54.1 335 12 6 5.5 3.0 | 13.9 57.0 345 6 3 10.7 5.9 8500 12.6 54.7 340 12 6 5.2 2.8 | 14.7 58.5 345 6 3 10.6 5.8 8250 13.0 55.4 335 12 6 4.6 2.5 | 15.5 59.9 350 6 3 11.1 6.1 8000 13.3 55.9 330 11 6 5.0 2.7 | 16.5 61.7 350 6 3 16.6 9.1 7750 13.6 56.5 325 9 4 6.7 3.7 | 18.0 64.4 355 6 3 24.1 13.2 7500 M M M M M M M | M M M M M M M 7250 M M M M M M M | M M M M M M M 7000 M M M M M M M | M M M M M M M 6750 M M M M M M M | M M M M M M M 04/13/2026 at 1500 MDT | 04/13/2026 at 1800 MDT | CAPE... +64.2 LI... -0.4 | CAPE... +24.3 LI... -0.3 CINH... 0.0 K Index... +16.6 | CINH... -17.9 K Index... +22.0 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -63.5 -82.3 285 34 18 2.7 1.5 | -63.0 -81.4 285 30 15 3.0 1.6 45000 -59.4 -74.9 280 47 24 2.9 1.6 | -58.5 -73.3 280 38 19 3.0 1.6 40000 -54.3 -65.7 270 40 20 6.2 3.4 | -53.6 -64.5 270 36 18 5.1 2.8 38000 -50.6 -59.1 275 35 18 6.2 3.4 | -50.6 -59.1 265 29 15 5.0 2.8 36000 -46.9 -52.4 280 30 16 6.0 3.3 | -47.5 -53.5 260 23 12 4.9 2.7 34000 -41.5 -42.7 280 29 15 9.4 5.2 | -42.5 -44.5 260 23 12 9.2 5.0 32000 -35.9 -32.6 280 30 15 9.2 5.1 | -37.0 -34.6 270 24 12 9.2 5.0 30000 -30.8 -23.4 280 28 14 8.1 4.4 | -31.8 -25.2 275 25 13 8.4 4.6 29000 -28.4 -19.1 280 26 13 8.1 4.5 | -29.3 -20.7 275 25 13 8.4 4.6 28000 -26.0 -14.8 275 25 13 7.7 4.2 | -26.8 -16.2 280 26 13 8.3 4.5 27000 -24.7 -12.5 280 22 11 3.7 2.0 | -24.7 -12.5 280 24 12 7.0 3.8 26000 -23.5 -10.3 280 19 10 3.8 2.1 | -22.6 -8.7 280 21 11 7.0 3.9 25000 -22.4 -8.3 285 16 8 3.6 2.0 | -20.5 -4.9 280 19 10 7.1 3.9 24000 -19.7 -3.5 285 14 7 8.5 4.6 | -18.3 -0.9 280 15 8 5.3 2.9 23000 -17.2 1.0 280 13 7 8.5 4.6 | -16.7 1.9 275 11 6 5.3 2.9 22000 -14.6 5.7 275 12 6 8.1 4.5 | -15.1 4.8 265 7 4 5.9 3.3 21000 -12.4 9.7 270 12 6 7.3 4.0 | -12.9 8.8 260 8 4 7.5 4.1 20000 -10.2 13.6 265 13 7 7.3 4.0 | -10.6 12.9 260 8 4 7.5 4.1 19500 -9.1 15.6 265 13 7 7.5 4.1 | -9.5 14.9 255 8 4 7.9 4.3 19000 -8.1 17.4 265 13 7 6.1 3.3 | -8.6 16.5 260 9 4 4.3 2.4 18500 -7.2 19.0 270 12 6 6.2 3.4 | -8.0 17.6 260 10 5 4.8 2.6 18000 -6.3 20.7 275 12 6 6.0 3.3 | -7.4 18.7 265 10 5 6.4 3.5 17500 -5.5 22.1 280 13 7 5.8 3.2 | -6.2 20.8 265 12 6 8.3 4.6 17000 -4.7 23.5 285 15 8 5.7 3.2 | -5.1 22.8 270 13 7 8.5 4.7 16500 -3.8 25.2 290 16 8 7.3 4.0 | -3.9 25.0 265 14 7 8.7 4.8 16000 -2.8 27.0 285 18 9 7.3 4.0 | -2.6 27.3 265 15 8 8.7 4.8 15500 -1.8 28.8 285 19 10 8.5 4.7 | -1.3 29.7 265 15 8 8.8 4.9 15000 -0.5 31.1 280 18 9 8.9 4.9 | -0.0 32.0 265 14 7 8.8 4.9 14500 0.8 33.4 275 18 9 8.6 4.7 | 1.3 34.3 260 13 7 8.4 4.6 14000 2.0 35.6 270 16 8 7.9 4.3 | 2.4 36.3 255 11 6 7.5 4.1 13500 3.1 37.6 265 14 7 7.7 4.2 | 3.6 38.5 245 10 5 7.4 4.0 13000 4.2 39.6 260 9 5 6.3 3.5 | 4.5 40.1 230 7 4 6.0 3.3 12500 5.2 41.4 255 6 3 6.8 3.7 | 5.5 41.9 210 6 3 6.5 3.6 12000 6.3 43.3 255 3 1 8.0 4.4 | 6.5 43.7 190 5 2 6.4 3.5 11750 6.9 44.4 245 1 1 8.1 4.4 | 7.0 44.6 175 4 2 6.5 3.6 11500 7.5 45.5 000 0 0 9.7 5.3 | 7.5 45.5 155 4 2 7.5 4.1 11250 8.3 46.9 080 1 0 9.4 5.2 | 8.1 46.6 145 4 2 7.5 4.1 11000 8.9 48.0 085 1 1 8.6 4.7 | 8.6 47.5 135 5 2 7.1 3.9 10750 9.6 49.3 085 1 1 8.1 4.4 | 9.2 48.6 125 5 2 6.6 3.6 10500 10.2 50.4 085 2 1 11.0 6.0 | 9.7 49.5 120 5 3 9.1 5.0 10250 11.1 52.0 085 2 1 11.5 6.3 | 10.5 50.9 110 6 3 10.0 5.5 10000 11.8 53.2 085 2 1 8.9 4.9 | 11.1 52.0 105 6 3 8.2 4.5 9750 12.6 54.7 085 3 1 9.7 5.3 | 11.8 53.2 105 6 3 8.7 4.8 9500 13.3 55.9 085 3 1 9.1 5.0 | 12.4 54.3 105 7 3 8.3 4.5 9250 14.0 57.2 085 3 2 9.2 5.0 | 13.0 55.4 100 7 3 8.1 4.5 9000 14.7 58.5 085 3 2 10.4 5.7 | 13.6 56.5 100 7 3 9.3 5.1 8750 15.5 59.9 085 3 2 11.0 6.0 | 14.4 57.9 100 7 4 9.9 5.4 8500 16.3 61.3 085 3 2 10.7 5.9 | 15.1 59.2 100 7 4 9.8 5.4 8250 17.1 62.8 085 4 2 10.3 5.7 | 15.8 60.4 100 7 4 10.5 5.7 8000 17.9 64.2 085 4 2 13.3 7.3 | 16.6 61.9 100 7 4 10.4 5.7 7750 19.1 66.4 085 4 2 18.6 10.2 | 17.3 63.1 100 6 3 9.4 5.2 7500 M M M M M M M | M M M M M M M 7250 M M M M M M M | M M M M M M M 7000 M M M M M M M | M M M M M M M 6750 M M M M M M M | M M M M M M M ________________________________________________________________________________ This product is issued twice per day, once by approximately 0630 MST/0730 MDT (1330 UTC) and again by approximately 1830 MST/1930 MDT (0130 UTC). It is not continuously monitored nor updated after its initial issuance. The information contained herein is based on rawinsonde observation and/or numerical weather prediction model data taken near the Air Force Academy in Colorado Springs, Colorado at North Latitude: 38 deg 58 min 48.000 sec West Longitude: 104 deg 49 min 12.000 sec Elevation: 6572 feet (2003 meters) and may not be representative of other areas along the Front Range of the Colorado Rocky Mountains. Note that some elevations in numerical weather prediction models differ from actual station elevations, which can lead to data which appear to be below ground. Erroneous data such as these should not be used. The content and format of this report as well as the issuance times are subject to change without prior notice. Comments and suggestions are welcome and should be directed to one of the addresses or phone numbers shown at the bottom of this page. To expedite a response to comments, be sure to mention your interest in the soaring forecast. DEFINITIONS: CAPE (Convective Available Potential Energy) - An integrated measure of the energy available for convective development, also known as the positive area on a thermodynamic diagram. Units are Joules per kilogram. Larger values are indicative of greater instability and the possibility of stronger convective activity, including thunderstorms. Values around or greater than 1000 suggest the possibility of severe weather should convective activity develop. CINH (Convective Inhibition) - An integrated measure of the amount of energy needed to initiate convective activity, also known as the negative area on a thermodynamic diagram. Units are Joules per kilogram. The more negative this number, the more energy is required to initiate convection. This inhibitive energy can be overcome through surface heating, cooling aloft, lifting mechanisms (orographic, frontal, gravity waves, etc.) Convective Condensation Level - The height to which an air parcel possessing the average saturation mixing ratio in the lowest 4000 feet of the airmass, if heated sufficiently from below, will rise dry adiabatically until it just becomes saturated. It estimates the base of cumulus clouds that are produced by surface heating only. Convection Temperature (ConvectionT) - The surface temperature required to make the airmass dry adiabatic up to the given level. It can be considered a "trigger temperature" for that level. Freezing Level - The height where the temperature is zero degrees Celsius. Height of Stable Layer - The height (between 12,000 and 18,000 feet above mean sea level) where the smallest lapse rate exists. The location and existence of this feature is important in the generation of mountain waves. K Index - A measure of stability which combines the temperature difference between approximately 5,000 and 18,000 feet above the surface, the amount of moisture at approximately 5,000 feet above the surface, and a measure of the dryness at approximately 10,000 feet above the surface. Larger positive numbers indicate more instability and a greater likelihood of thunderstorm development. One interpretation of K index values regarding soaring in the western United States is given in WMO Technical Note 158 and is reproduced in the following table: below -10 no or weak thermals -10 to 5 dry thermals or 1/8 cumulus with moderate thermals 5 to 15 good soaring conditions 15 to 20 good soaring conditions with occasional showers 20 to 30 excellent soaring conditions, but increasing probability of showers and thunderstorms above 30 more than 60 percent probability of thunderstorms Lapse Rate - The change with height of the temperature. Negative values indicate inversions. Lifted Condensation Level - The height to which an air parcel possessing the average dew point in the lowest 4000 feet of the airmass and the forecast maximum temperature must be lifted dry adiabatically to attain saturation. Lifted Index (LI) - The difference between the environmental temperature at a level approximately 18,000 feet above the surface and the temperature of an air parcel lifted dry adiabatically from the surface to its lifted condensation level and then pseudoadiabatically thereafter to this same level. The parcel's initial temperature is the forecast maximum temperature and its dew point is the average dew point in the lowest 4000 feet of the airmass. Negative values are indicative of instability with positive values showing stable conditions. Lift Rate - An experimental estimate of the strength of thermals. It is computed the same way as the maximum rate of lift but uses the actual level rather than the maximum height of thermals in the calculation. Also, none of the empirical adjustments based on cloudiness and K-index are applied to these calculations. Maximum Height of Thermals - The height where the dry adiabat through the forecast maximum temperature intersects the environmental temperature. Maximum Rate of Lift - An estimate of the maximum strength of thermals. It is computed from an empirical formula which combines the expected maximum height of thermals with the difference in the environmental temperatures between the maximum height of thermals and the temperature 4,000 feet above the ground. After this computation, further empirical adjustments are made based on the value of the K-index and the amount and opacity of middle and high level cloudiness expected between the time of trigger temperature and the time of overdevelopment. Middle/High Clouds - The amount and opacity of middle (altostratus, altocumulus) or high (cirrus, cirrostratus, cirrocumulus) clouds. Broken means that between 60% and 90% of the sky is covered by the cloud, with overcast conditions occurring when more than 90% of the sky is covered by the cloud. Thin implies that the clouds are predominantly transparent, meaning that some sunlight is reaching the ground, in contrast to opaque which suggests that little sunlight is reaching the ground. Potential Height of Wave - The minimum of the following two heights: 1. Level above the height of stable layer (or 14,000 feet if none exists) where the wind direction changes by 30 degrees or more 2. Level above the height of stable layer (or 14,000 feet if none exists) where the wind speed no longer increases with height PVA/NVA - Positive vorticity advection (PVA)/negative vorticity advection (NVA) on the 500 millibar isobaric surface (approximately 18,000 feet above mean sea level). Weak PVA has been shown to assist in mountain wave soaring. Soaring Window - The time between the time the trigger temperature is reached and the time of overdevelopment. Thermal Index - The difference between the environmental temperature and the temperature at a particular level determined by following the dry adiabat through the forecast maximum temperature up to that level. Negative values are indicative of thermal lift. Thermal Soaring Index - An adjective rating (for sailplanes) based on the computed maximum rate of lift, and the wind speed and middle and high cloud cover expected during the soaring window (the time of the trigger temperature and the time of overdevelopment) according to the following: Maximum rate of lift Adjective Rating >= 800 fpm Excellent >= 400 and < 800 fpm Good >= 200 and < 400 fpm Fair < 200 fpm Poor Time of Overdevelopment - The time one or more of the following phenomena, which essentially shut off thermal lift, is expected to occur: 1. formation of broken to overcast convective cloud cover 2. formation of scattered to numerous downbursts 3. initiation of widespread precipitation Time of Trigger Temperature - The time the surface temperature is expected to reach the trigger temperature. Trigger Temperature - The surface temperature required to make the first 4000 feet of the atmosphere dry adiabatic. Wave Soaring Index - An empirical, adjective rating (for sailplanes) which attempts to combine a variety of phenomena important in mountain wave soaring into a single index number. Objective points are assigned to these phenomena: wind speed and direction at 14,000 ft MSL, the static stability in the 12,000-18,000 ft MSL layer, the wind speed gradient above the stable layer, jet stream location and frontal and upper trough movements. 042613  360 UXUS97 KPUB 131213 SRGPUB Soaring Forecast National Weather Service Pueblo, Colorado 0612 MDT Monday, April 13, 2026 This forecast is for Villa Grove, CO for Monday, April 13, 2026: If the trigger temperature of 41.8 F/5.4 C is reached...then Thermal Soaring Index....................... Fair Maximum rate of lift........................ 767 ft/min (3.9 m/s) Maximum height of thermals.................. 21848 ft MSL (12877 ft AGL) Forecast maximum temperature................... 60.0 F/16.0 C Time of trigger temperature.................... 0900 MDT Time of overdevelopment........................ 1600 MDT Middle/high clouds during soaring window....... Broken/overcast opaque middle Surface winds during soaring window............ Between 20 mph and 30 mph Height of the -3 thermal index................. 17752 ft MSL (8781 ft AGL) Thermal soaring outlook for Tuesday 04/14...... Good Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:30:07 / 19:37:55 MDT Total possible sunshine........... 13 hr 7 min 48 sec (787 min 48 sec) Altitude of sun at 13:04:01 MDT... 60.98 degrees Upper air data from numerical model forecast valid on 04/13/2026 at 0600 MDT Freezing level.................. 9147 ft MSL (176 ft AGL) Additional freezing level....... 10321 ft MSL (1350 ft AGL) Convective condensation level... 17670 ft MSL (8699 ft AGL) Lifted condensation level....... 19176 ft MSL (10204 ft AGL) Lifted index.................... -0.2 K index......................... -7.5 Height Temperature Wind Wind Spd Lapse Rate ConvectionT Thermal Lift Rate ft MSL deg C deg F Dir kt m/s C/km F/kft deg C deg F Index fpm m/s -------------------------------------------------------------------------------- 50000 -61.2 -78.2 230 56 29 -0.0 -0.0 M M M M M 45000 -61.2 -78.2 235 60 31 0.6 0.3 M M M M M 40000 -60.1 -76.2 235 71 37 0.7 0.4 M M M M M 38000 -57.5 -71.5 235 74 38 6.8 3.7 M M M M M 36000 -53.4 -64.1 235 76 39 6.8 3.7 M M M M M 34000 -49.3 -56.7 230 77 40 7.4 4.1 M M M M M 32000 -44.8 -48.6 230 75 39 7.4 4.1 M M M M M 30000 -40.0 -40.0 230 71 37 6.2 3.4 24.6 76.2 7.0 M M 29000 -38.2 -36.8 230 68 35 6.2 3.4 23.1 73.6 6.0 M M 28000 -36.3 -33.3 230 64 33 6.2 3.4 21.9 71.3 5.0 M M 27000 -34.5 -30.1 230 61 32 6.9 3.8 20.7 69.3 4.1 M M 26000 -32.3 -26.1 230 59 30 7.1 3.9 19.6 67.3 3.3 M M 25000 -30.2 -22.4 235 56 29 7.1 3.9 18.7 65.6 2.5 M M 24000 -28.1 -18.6 235 54 28 7.0 3.9 17.8 64.1 1.9 M M 23000 -26.0 -14.8 235 53 27 7.0 3.8 16.7 62.1 1.0 M M 22000 -23.9 -11.0 235 52 27 7.0 3.8 15.8 60.4 0.1 M M 21000 -21.8 -7.2 240 51 26 7.4 4.1 14.9 58.8 -0.6 1090 5.5 20000 -19.5 -3.1 240 50 26 7.5 4.1 14.1 57.3 -1.4 993 5.0 19500 -18.4 -1.1 240 50 26 7.5 4.1 13.7 56.6 -1.7 945 4.8 19000 -17.3 0.9 245 50 26 7.5 4.1 13.3 56.0 -2.1 896 4.6 18500 -16.2 2.8 245 50 26 7.4 4.1 13.0 55.4 -2.4 848 4.3 18000 -15.1 4.8 245 50 25 7.3 4.0 12.6 54.6 -2.8 800 4.1 17500 -14.0 6.8 245 49 25 7.3 4.0 12.2 53.9 -3.1 752 3.8 17000 -12.9 8.8 245 49 25 6.7 3.7 11.7 53.1 -3.6 706 3.6 16500 -11.9 10.6 245 48 25 6.8 3.7 11.2 52.2 -4.0 661 3.4 16000 -11.0 12.2 245 47 24 5.3 2.9 10.7 51.2 -4.6 617 3.1 15500 -10.2 13.6 245 45 23 5.0 2.7 9.9 49.8 -5.3 581 3.0 15000 -9.2 15.4 245 42 22 4.0 2.2 8.7 47.6 -6.6 529 2.7 14500 -8.7 16.3 245 38 20 3.5 1.9 7.8 46.0 -7.5 497 2.5 14000 -8.2 17.2 245 32 17 5.6 3.1 6.8 44.3 -8.5 467 2.4 13500 -7.2 19.0 245 28 14 6.8 3.7 6.3 43.3 -9.1 424 2.2 13000 -6.4 20.5 245 24 13 5.8 3.2 5.7 42.2 -9.8 385 2.0 12500 -5.4 22.3 250 28 14 7.2 3.9 5.3 41.5 -10.3 339 1.7 12000 -4.3 24.3 255 31 16 7.8 4.3 4.9 40.8 -10.8 294 1.5 11750 -3.7 25.3 260 31 16 9.0 4.9 4.8 40.6 -10.9 267 1.4 11500 -3.0 26.6 260 30 16 9.3 5.1 4.7 40.5 -11.0 239 1.2 11250 -2.4 27.7 260 30 15 9.2 5.0 4.7 40.5 -11.1 212 1.1 11000 -1.7 28.9 260 29 15 9.5 5.2 4.7 40.4 -11.1 184 0.9 10750 -1.0 30.2 260 28 15 9.0 4.9 4.7 40.4 -11.2 155 0.8 10500 -0.3 31.5 260 27 14 8.4 4.6 4.6 40.2 -11.3 128 0.7 10250 0.3 32.5 260 25 13 8.0 4.4 4.4 40.0 -11.4 102 0.5 10000 0.8 33.4 255 24 12 4.8 2.6 4.2 39.6 -11.7 80 0.4 9750 1.0 33.8 255 22 11 2.2 1.2 3.7 38.7 -12.2 65 0.3 9500 1.1 34.0 250 20 10 -3.4 -1.8 3.0 37.4 -13.0 57 0.3 9250 0.4 32.7 245 17 9 -15.4 -8.5 1.6 34.8 -14.4 71 0.4 9000 -0.9 30.4 240 9 4 -14.3 -7.8 -0.4 31.2 -16.5 102 0.5 8750 M M M M M M M M M M M M 8500 M M M M M M M M M M M M 8250 M M M M M M M M M M M M 8000 M M M M M M M M M M M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/13/2026 at 0900 MDT | 04/13/2026 at 1200 MDT | CAPE... 0.0 LI... +2.0 | CAPE... +0.4 LI... +2.1 CINH... 0.0 K Index... -13.4 | CINH... 0.0 K Index... -6.7 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -60.9 -77.6 305 18 9 2.2 1.2 | -60.4 -76.7 270 20 10 3.3 1.8 45000 -57.9 -72.2 325 21 11 -0.8 -0.4 | -56.2 -69.2 295 24 12 -2.4 -1.3 40000 -59.1 -74.4 360 45 23 -0.9 -0.5 | -59.9 -75.8 360 49 25 -2.7 -1.5 38000 -56.4 -69.5 005 50 26 6.1 3.3 | -57.1 -70.8 005 52 27 6.6 3.6 36000 -52.7 -62.9 010 55 28 6.1 3.3 | -53.1 -63.6 010 51 26 6.6 3.6 34000 -48.7 -55.7 015 57 29 7.6 4.2 | -48.6 -55.5 015 50 26 8.6 4.7 32000 -44.1 -47.4 020 55 28 7.6 4.2 | -43.5 -46.3 020 48 25 8.6 4.7 30000 -39.7 -39.5 025 52 27 7.0 3.8 | -38.2 -36.8 025 44 22 7.2 3.9 29000 -37.1 -34.8 025 47 24 7.0 3.8 | -36.0 -32.8 025 41 21 7.2 3.9 28000 -35.0 -31.0 025 44 23 7.0 3.9 | -33.9 -29.0 020 37 19 7.2 3.9 27000 -32.7 -26.9 025 41 21 7.9 4.3 | -31.7 -25.1 020 35 18 7.2 4.0 26000 -30.4 -22.7 025 39 20 7.9 4.3 | -29.5 -21.1 020 33 17 7.2 4.0 25000 -28.0 -18.4 025 38 19 7.9 4.3 | -27.4 -17.3 015 32 16 7.2 4.0 24000 -25.6 -14.1 030 35 18 8.0 4.4 | -25.1 -13.2 015 30 16 8.3 4.6 23000 -23.2 -9.8 030 32 17 8.0 4.4 | -22.6 -8.7 015 29 15 8.3 4.5 22000 -20.8 -5.4 030 29 15 8.0 4.4 | -20.1 -4.2 015 28 14 8.2 4.5 21000 -18.6 -1.5 025 26 13 6.9 3.8 | -17.8 -0.0 015 26 13 7.4 4.0 20000 -16.5 2.3 025 22 11 6.9 3.8 | -15.6 3.9 015 22 11 7.3 4.0 19500 -15.5 4.1 025 20 11 6.9 3.8 | -14.5 5.9 015 21 11 7.3 4.0 19000 -14.5 5.9 020 19 10 6.9 3.8 | -13.4 7.9 015 19 10 7.3 4.0 18500 -13.4 7.9 020 17 9 7.5 4.1 | -12.3 9.9 015 18 9 7.1 3.9 18000 -12.3 9.9 020 16 8 7.5 4.1 | -11.2 11.8 015 17 9 7.2 3.9 17500 -11.2 11.8 020 15 8 6.8 3.7 | -10.2 13.6 015 16 8 6.4 3.5 17000 -10.3 13.5 020 14 7 6.5 3.6 | -9.3 15.3 015 15 8 6.2 3.4 16500 -9.3 15.3 020 14 7 6.5 3.6 | -8.4 16.9 015 14 7 6.2 3.4 16000 -8.3 17.1 015 12 6 6.6 3.6 | -7.4 18.7 010 13 7 6.3 3.5 15500 -7.4 18.7 015 11 6 6.7 3.7 | -6.5 20.3 010 12 6 6.3 3.4 15000 -6.4 20.5 015 10 5 6.3 3.5 | -5.1 22.8 005 11 6 6.8 3.7 14500 -5.5 22.1 010 9 5 6.3 3.5 | -4.1 24.6 360 10 5 6.1 3.3 14000 -4.1 24.6 005 7 4 5.9 3.3 | -3.2 26.2 355 10 5 6.7 3.7 13500 -3.2 26.2 360 7 3 5.9 3.3 | -2.2 28.0 350 9 5 6.3 3.5 13000 -2.4 27.7 360 6 3 6.3 3.4 | -1.4 29.5 345 8 4 6.2 3.4 12500 -1.5 29.3 355 5 3 6.8 3.7 | -0.5 31.1 335 8 4 7.0 3.9 12000 -0.5 31.1 355 5 2 7.4 4.1 | 0.4 32.7 325 7 3 7.4 4.0 11750 0.1 32.2 350 5 2 8.6 4.7 | 1.1 34.0 320 6 3 10.0 5.5 11500 0.7 33.3 350 5 2 8.9 4.9 | 1.8 35.2 315 5 3 10.4 5.7 11250 1.4 34.5 345 5 2 8.4 4.6 | 2.5 36.5 305 5 2 9.7 5.3 11000 1.9 35.4 340 5 3 8.0 4.4 | 3.2 37.8 300 5 2 8.7 4.7 10750 2.5 36.5 335 6 3 8.2 4.5 | 3.8 38.8 300 4 2 10.0 5.5 10500 3.1 37.6 330 7 4 8.5 4.7 | 4.6 40.3 300 4 2 11.3 6.2 10250 3.7 38.7 330 8 4 6.2 3.4 | 5.4 41.7 300 4 2 10.3 5.7 10000 4.0 39.2 330 9 5 4.0 2.2 | 6.2 43.2 300 4 2 9.7 5.3 9750 4.4 39.9 325 10 5 5.4 2.9 | 6.9 44.4 295 4 2 9.7 5.3 9500 4.8 40.6 325 11 5 5.6 3.1 | 7.6 45.7 295 4 2 11.3 6.2 9250 5.0 41.0 320 9 5 -0.1 -0.0 | 8.7 47.7 295 3 2 18.3 10.1 9000 4.3 39.7 295 5 3 -18.4 -10.1 | 10.5 50.9 290 3 2 32.2 17.7 8750 M M M M M M M | M M M M M M M 8500 M M M M M M M | M M M M M M M 8250 M M M M M M M | M M M M M M M 8000 M M M M M M M | M M M M M M M 04/13/2026 at 1500 MDT | 04/13/2026 at 1800 MDT | CAPE... +13.2 LI... +1.0 | CAPE... +42.2 LI... -1.0 CINH... -1.1 K Index... +4.4 | CINH... -6.6 K Index... +19.1 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -62.0 -79.6 280 26 14 2.2 1.2 | -62.9 -81.2 280 27 14 1.7 0.9 45000 -59.2 -74.6 305 33 17 -0.9 -0.5 | -60.7 -77.3 305 32 17 -0.5 -0.3 40000 -60.6 -77.1 355 38 20 -1.5 -0.8 | -61.5 -78.7 330 36 18 -1.4 -0.8 38000 -57.3 -71.1 360 40 21 6.8 3.7 | -57.6 -71.7 335 36 18 7.7 4.2 36000 -53.3 -63.9 360 41 21 6.8 3.7 | -53.0 -63.4 340 35 18 7.7 4.2 34000 -48.7 -55.7 005 40 21 8.6 4.7 | -48.2 -54.8 340 34 18 8.3 4.6 32000 -43.5 -46.3 005 38 20 8.6 4.7 | -43.2 -45.8 345 33 17 8.3 4.6 30000 -38.0 -36.4 010 35 18 7.7 4.2 | -37.5 -35.5 350 30 16 8.5 4.7 29000 -35.6 -32.1 010 32 17 7.7 4.2 | -34.9 -30.8 350 29 15 8.5 4.7 28000 -33.3 -27.9 010 30 15 7.7 4.2 | -32.4 -26.3 355 28 15 8.6 4.7 27000 -30.9 -23.6 010 29 15 8.1 4.5 | -29.9 -21.8 355 28 14 7.9 4.3 26000 -28.5 -19.3 005 30 15 8.1 4.5 | -27.6 -17.7 355 28 14 7.8 4.3 25000 -26.0 -14.8 360 31 16 8.1 4.5 | -25.2 -13.4 350 28 15 7.8 4.3 24000 -23.7 -10.7 360 31 16 7.5 4.1 | -22.9 -9.2 355 28 14 7.6 4.2 23000 -21.4 -6.5 360 30 16 7.5 4.1 | -20.6 -5.1 355 26 13 7.6 4.2 22000 -19.2 -2.6 005 29 15 7.6 4.1 | -18.3 -0.9 360 25 13 7.6 4.2 21000 -16.9 1.6 005 28 14 8.0 4.4 | -16.1 3.0 360 23 12 7.2 3.9 20000 -14.4 6.1 010 26 13 8.1 4.4 | -14.0 6.8 360 20 10 7.2 3.9 19500 -13.2 8.2 010 25 13 8.0 4.4 | -12.9 8.8 360 19 10 7.2 3.9 19000 -12.0 10.4 015 24 12 7.9 4.3 | -11.9 10.6 355 17 9 7.4 4.0 18500 -11.0 12.2 015 23 12 6.4 3.5 | -10.7 12.7 355 17 9 8.3 4.5 18000 -10.0 14.0 010 21 11 6.5 3.6 | -9.4 15.1 350 17 9 8.3 4.5 17500 -9.1 15.6 010 19 10 5.4 3.0 | -8.3 17.1 345 17 9 7.2 3.9 17000 -8.3 17.1 010 17 9 5.1 2.8 | -7.2 19.0 345 17 9 6.9 3.8 16500 -7.6 18.3 005 15 8 5.1 2.8 | -6.2 20.8 340 17 9 6.3 3.5 16000 -6.8 19.8 360 13 7 5.0 2.7 | -5.4 22.3 340 17 9 4.6 2.5 15500 -6.1 21.0 350 12 6 4.9 2.7 | -4.7 23.5 335 16 8 4.7 2.6 15000 -4.9 23.2 335 11 6 6.8 3.7 | -3.8 25.2 330 14 7 5.2 2.8 14500 -4.0 24.8 320 11 6 6.7 3.7 | -3.2 26.2 325 13 7 5.5 3.0 14000 -2.9 26.8 310 10 5 9.1 5.0 | -2.2 28.0 320 11 6 8.8 4.8 13500 -1.7 28.9 295 8 4 8.4 4.6 | -1.0 30.2 315 10 5 8.1 4.5 13000 -0.5 31.1 285 8 4 9.5 5.2 | 0.2 32.4 310 9 5 9.4 5.1 12500 1.0 33.8 280 7 4 9.9 5.4 | 1.6 34.9 305 9 5 9.9 5.5 12000 2.4 36.3 275 7 4 9.2 5.0 | 2.8 37.0 305 9 4 7.4 4.1 11750 3.1 37.6 275 7 3 10.1 5.6 | 3.5 38.3 300 8 4 10.0 5.5 11500 3.8 38.8 275 7 3 10.1 5.5 | 4.2 39.6 300 8 4 9.9 5.5 11250 4.6 40.3 275 6 3 9.9 5.5 | 4.9 40.8 295 8 4 9.2 5.1 11000 5.3 41.5 270 6 3 9.6 5.3 | 5.6 42.1 290 8 4 8.0 4.4 10750 6.0 42.8 270 6 3 10.1 5.5 | 6.2 43.2 285 8 4 8.8 4.9 10500 6.8 44.2 270 6 3 10.6 5.8 | 6.9 44.4 280 7 4 9.7 5.3 10250 7.6 45.7 270 6 3 10.3 5.7 | 7.6 45.7 275 7 4 9.0 5.0 10000 8.4 47.1 270 6 3 10.2 5.6 | 8.2 46.8 270 7 4 8.6 4.7 9750 9.1 48.4 265 5 3 10.3 5.7 | 8.9 48.0 265 7 3 8.6 4.7 9500 9.9 49.8 265 5 3 10.6 5.8 | 9.5 49.1 260 6 3 9.3 5.1 9250 10.8 51.4 265 5 3 15.4 8.5 | 10.1 50.2 255 6 3 6.0 3.3 9000 12.6 54.7 260 5 3 38.9 21.3 | 9.7 49.5 240 4 2 -21.6 -11.9 8750 M M M M M M M | M M M M M M M 8500 M M M M M M M | M M M M M M M 8250 M M M M M M M | M M M M M M M 8000 M M M M M M M | M M M M M M M ________________________________________________________________________________ This product is issued twice per day, once by approximately 0630 MST/0730 MDT (1330 UTC). It is not continuously monitored nor updated after its initial issuance. The information contained herein is based on rawinsonde observation and/or numerical weather prediction model data taken near Villa Grove, Colorado at: North Latitude: 38 deg 16 min 03 sec West Longitude: 105 deg 53 min 37 sec Elevation: 7986 feet (2434 meters) and may not be representative of other areas along the Front Range of the Colorado Rocky Mountains. Note that some elevations in numerical weather prediction models differ from actual station elevations, which can lead to data which appear to be below ground. Erroneous data such as these should not be used. The content and format of this report as well as the issuance times are subject to change without prior notice. Comments and suggestions are welcome and should be directed to one of the addresses or phone numbers shown at the bottom of this page. To expedite a response to comments, be sure to mention your interest in the soaring forecast. DEFINITIONS: CAPE (Convective Available Potential Energy) - An integrated measure of the energy available for convective development, also known as the positive area on a thermodynamic diagram. Units are Joules per kilogram. Larger values are indicative of greater instability and the possibility of stronger convective activity, including thunderstorms. Values around or greater than 1000 suggest the possibility of severe weather should convective activity develop. CIN (Convective Inhibition) - An integrated measure of the amount of energy needed to initiate convective activity, also known as the negative area on a thermodynamic diagram. Units are Joules per kilogram. The more negative this number, the more energy is required to initiate convection. This inhibitive energy can be overcome through surface heating, cooling aloft, lifting mechanisms (orographic, frontal, gravity waves, etc.) Convective Condensation Level - The height to which an air parcel possessing the average saturation mixing ratio in the lowest 4000 feet of the airmass, if heated sufficiently from below, will rise dry adiabatically until it just becomes saturated. It estimates the base of cumulus clouds that are produced by surface heating only. Convection Temperature (ConvectionT) - The surface temperature required to make the airmass dry adiabatic up to the given level. It can be considered a "trigger temperature" for that level. Freezing Level - The height where the temperature is zero degrees Celsius. Height of Stable Layer - The height (between 12,000 and 18,000 feet above mean sea level) where the smallest lapse rate exists. The location and existence of this feature is important in the generation of mountain waves. K Index - A measure of stability which combines the temperature difference between approximately 5,000 and 18,000 feet above the surface, the amount of moisture at approximately 5,000 feet above the surface, and a measure of the dryness at approximately 10,000 feet above the surface. Larger positive numbers indicate more instability and a greater likelihood of thunderstorm development. One interpretation of K index values regarding soaring in the western United States is given in WMO Technical Note 158 and is reproduced in the following table: below -10 no or weak thermals -10 to 5 dry thermals or 1/8 cumulus with moderate thermals 5 to 15 good soaring conditions 15 to 20 good soaring conditions with occasional showers 20 to 30 excellent soaring conditions, but increasing probability of showers and thunderstorms above 30 more than 60 percent probability of thunderstorms Lapse Rate - The change with height of the temperature. Negative values indicate inversions. Lifted Condensation Level - The height to which an air parcel possessing the average dew point in the lowest 4000 feet of the airmass and the forecast maximum temperature must be lifted dry adiabatically to attain saturation. Lifted Index (LI) - The difference between the environmental temperature at a level approximately 18,000 feet above the surface and the temperature of an air parcel lifted dry adiabatically from the surface to its lifted condensation level and then pseudoadiabatically thereafter to this same level. The parcel's initial temperature is the forecast maximum temperature and its dew point is the average dew point in the lowest 4000 feet of the airmass. Negative values are indicative of instability with positive values showing stable conditions. Lift Rate - An experimental estimate of the strength of thermals. It is computed the same way as the maximum rate of lift but uses the actual level rather than the maximum height of thermals in the calculation. Also, none of the empirical adjustments based on cloudiness and K-index are applied to these calculations. Maximum Height of Thermals - The height where the dry adiabat through the forecast maximum temperature intersects the environmental temperature. Maximum Rate of Lift - An estimate of the maximum strength of thermals. It is computed from an empirical formula which combines the expected maximum height of thermals with the difference in the environmental temperatures between the maximum height of thermals and the temperature 4,000 feet above the ground. After this computation, further empirical adjustments are made based on the value of the K-index and the amount and opacity of middle and high level cloudiness expected between the time of trigger temperature and the time of overdevelopment. Middle/High Clouds - The amount and opacity of middle (altostratus, altocumulus) or high (cirrus, cirrostratus, cirrocumulus) clouds. Broken means that between 60% and 90% of the sky is covered by the cloud, with overcast conditions occurring when more than 90% of the sky is covered by the cloud. Thin implies that the clouds are predominantly transparent, meaning that some sunlight is reaching the ground, in contrast to opaque which suggests that little sunlight is reaching the ground. Potential Height of Wave - The minimum of the following two heights: 1. Level above the height of stable layer (or 14,000 feet if none exists) where the wind direction changes by 30 degrees or more 2. Level above the height of stable layer (or 14,000 feet if none exists) where the wind speed no longer increases with height PVA/NVA - Positive vorticity advection (PVA)/negative vorticity advection (NVA) on the 500 millibar isobaric surface (approximately 18,000 feet above mean sea level). Weak PVA has been shown to assist in mountain wave soaring. Soaring Window - The time between the time the trigger temperature is reached and the time of overdevelopment. Thermal Index - The difference between the environmental temperature and the temperature at a particular level determined by following the dry adiabat through the forecast maximum temperature up to that level. Negative values are indicative of thermal lift. Thermal Soaring Index - An adjective rating (for sailplanes) based on the computed maximum rate of lift, and the wind speed and middle and high cloud cover expected during the soaring window (the time of the trigger temperature and the time of overdevelopment) according to the following: Maximum rate of lift Adjective Rating >= 800 fpm Excellent >= 400 and < 800 fpm Good >= 200 and < 400 fpm Fair < 200 fpm Poor Time of Overdevelopment - The time one or more of the following phenomena, which essentially shut off thermal lift, is expected to occur: 1. formation of broken to overcast convective cloud cover 2. formation of scattered to numerous downbursts 3. initiation of widespread precipitation Time of Trigger Temperature - The time the surface temperature is expected to reach the trigger temperature. Trigger Temperature - The surface temperature required to make the first 4000 feet of the atmosphere dry adiabatic. Wave Soaring Index - An empirical, adjective rating (for sailplanes) which attempts to combine a variety of phenomena important in mountain wave soaring into a single index number. Objective points are assigned to these phenomena: wind speed and direction at 14,000 ft MSL, the static stability in the 12,000-18,000 ft MSL layer, the wind speed gradient above the stable layer, jet stream location and frontal and upper trough movements. 042613  780 UXUS97 KBOU 131215 SRGBOU Soaring Forecast National Weather Service Denver/Boulder, Colorado 0614 MDT Monday, April 13, 2026 This forecast is for Monday, April 13, 2026: If the trigger temperature of 59.8 F/15.4 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1021 ft/min (5.2 m/s) Maximum height of thermals.................. 17224 ft MSL (11927 ft AGL) Forecast maximum temperature................... 73.0 F/23.2 C Time of trigger temperature.................... 0945 MDT Time of overdevelopment........................ 1600 MDT Middle/high clouds during soaring window....... None Surface winds during soaring window............ 20 mph or less Height of the -3 thermal index................. 14036 ft MSL (8739 ft AGL) Thermal soaring outlook for Tuesday 04/14...... Fair Wave Soaring Index............................. Poor Wave Soaring Index trend (to 1800 MDT)......... No change Height of stable layer (12-18K ft MSL)......... None Weak PVA/NVA (through 1800 MDT)................ Weak PVA Potential height of wave....................... 44635 ft MSL (39338 ft AGL) Wave soaring outlook for Tuesday 04/14......... Poor Remarks... Sunrise/Sunset.................... 06:24:17 / 19:35:33 MDT Total possible sunshine........... 13 hr 11 min 16 sec (791 min 16 sec) Altitude of sun at 12:59:55 MDT... 59.49 degrees Upper air data from numerical model forecast valid on 04/13/2026 at 0600 MDT Freezing level.................. 11220 ft MSL (5923 ft AGL) Convective condensation level... 17457 ft MSL (12160 ft AGL) Lifted condensation level....... 17568 ft MSL (12271 ft AGL) Lifted index.................... -0.1 K index......................... +2.4 Height Temperature Wind Wind Spd Lapse Rate ConvectionT Thermal Lift Rate ft MSL deg C deg F Dir kt m/s C/km F/kft deg C deg F Index fpm m/s -------------------------------------------------------------------------------- 50000 -57.3 -71.1 235 54 28 -3.6 -2.0 M M M M M 45000 -63.0 -81.4 235 74 38 -1.4 -0.7 M M M M M 40000 -61.9 -79.4 235 78 40 0.7 0.4 M M M M M 38000 -59.2 -74.6 235 78 40 7.5 4.1 M M M M M 36000 -54.7 -66.5 235 77 40 7.5 4.1 M M M M M 34000 -50.2 -58.4 230 76 39 7.5 4.1 M M M M M 32000 -45.7 -50.3 230 73 37 7.5 4.1 M M M M M 30000 -40.9 -41.6 230 68 35 6.1 3.4 35.1 95.1 9.2 M M 29000 -39.1 -38.4 230 65 34 6.1 3.3 33.5 92.3 8.2 M M 28000 -37.3 -35.1 230 62 32 6.1 3.3 32.2 89.9 7.2 M M 27000 -35.4 -31.7 235 59 31 6.7 3.7 30.9 87.7 6.3 M M 26000 -33.4 -28.1 230 57 29 6.9 3.8 29.7 85.5 5.5 M M 25000 -31.3 -24.3 230 54 28 6.9 3.8 28.7 83.6 4.7 M M 24000 -29.2 -20.6 230 51 27 7.4 4.1 27.7 81.9 4.0 M M 23000 -26.8 -16.2 230 50 26 8.2 4.5 27.1 80.7 3.5 M M 22000 -24.3 -11.7 235 49 25 8.2 4.5 26.5 79.7 3.1 M M 21000 -21.8 -7.2 235 48 25 7.9 4.3 26.0 78.9 2.7 M M 20000 -19.5 -3.1 235 45 23 7.8 4.3 25.3 77.5 2.1 M M 19500 -18.3 -0.9 240 44 23 7.8 4.3 24.9 76.9 1.8 M M 19000 -17.2 1.0 240 43 22 7.8 4.3 24.6 76.3 1.5 M M 18500 -16.0 3.2 240 42 22 7.3 4.0 24.3 75.8 1.3 M M 18000 -15.0 5.0 240 39 20 6.8 3.7 23.8 74.8 0.8 M M 17500 -14.0 6.8 235 35 18 6.8 3.8 23.3 73.9 0.4 M M 17000 -13.1 8.4 230 31 16 5.5 3.0 22.7 72.8 -0.2 1011 5.1 16500 -12.2 10.0 220 28 14 5.7 3.1 22.0 71.5 -0.8 971 4.9 16000 -11.4 11.5 210 25 13 6.9 3.8 21.3 70.4 -1.4 930 4.7 15500 -9.7 14.5 205 21 11 7.5 4.1 20.8 69.4 -1.9 858 4.4 15000 -8.6 16.5 205 19 10 7.2 3.9 20.4 68.7 -2.3 811 4.1 14500 -7.5 18.5 215 18 9 7.1 3.9 19.9 67.9 -2.7 764 3.9 14000 -6.4 20.5 220 18 9 8.0 4.4 19.5 67.2 -3.1 716 3.6 13500 -5.2 22.6 225 18 9 8.3 4.6 19.3 66.8 -3.3 664 3.4 13000 -3.9 25.0 225 18 9 8.5 4.6 19.1 66.4 -3.5 611 3.1 12500 -2.7 27.1 235 19 10 8.5 4.7 18.9 66.0 -3.8 559 2.8 12000 -1.4 29.5 240 21 11 7.7 4.2 18.7 65.7 -4.0 506 2.6 11500 -0.4 31.3 245 23 12 6.6 3.6 18.2 64.8 -4.5 462 2.3 11000 0.5 32.9 250 25 13 5.8 3.2 17.7 63.9 -5.0 418 2.1 10500 1.2 34.2 260 25 13 4.7 2.6 16.9 62.5 -5.8 383 1.9 10250 1.5 34.7 260 25 13 5.5 3.0 16.6 61.8 -6.2 366 1.9 10000 2.0 35.6 265 25 13 7.3 4.0 16.3 61.4 -6.5 345 1.8 9750 2.6 36.7 265 25 13 7.8 4.3 16.1 61.1 -6.7 321 1.6 9500 3.1 37.6 265 24 12 7.7 4.2 16.0 60.8 -6.9 297 1.5 9250 3.7 38.7 270 23 12 7.5 4.1 15.8 60.5 -7.1 272 1.4 9000 4.2 39.6 270 22 11 7.7 4.2 15.6 60.2 -7.3 249 1.3 8750 4.8 40.6 270 21 11 8.3 4.6 15.5 59.9 -7.5 223 1.1 8500 5.4 41.7 270 20 10 8.1 4.4 15.4 59.7 -7.6 197 1.0 8250 6.1 43.0 275 19 10 9.0 4.9 15.3 59.5 -7.7 171 0.9 8000 6.8 44.2 275 17 9 10.4 5.7 15.3 59.5 -7.7 142 0.7 7750 7.6 45.7 275 16 8 9.5 5.2 15.3 59.6 -7.7 112 0.6 7500 8.2 46.8 275 14 7 8.4 4.6 15.3 59.5 -7.8 85 0.4 7250 8.9 48.0 270 12 6 9.4 5.2 15.2 59.3 -7.9 57 0.3 7000 9.6 49.3 270 12 6 10.2 5.6 15.2 59.4 -7.9 28 0.1 6750 10.4 50.7 270 11 6 9.0 4.9 15.2 59.4 -7.9 M M 6500 11.0 51.8 265 10 5 7.3 4.0 15.1 59.1 -8.1 M M 6250 11.4 52.5 260 9 5 3.6 2.0 14.8 58.6 -8.4 M M 6000 11.5 52.7 250 9 4 2.4 1.3 14.2 57.6 -9.0 M M 5750 11.7 53.1 240 8 4 -1.0 -0.6 13.6 56.5 -9.6 M M 5500 10.9 51.6 220 8 4 -22.9 -12.6 12.1 53.9 -11.1 M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/13/2026 at 0900 MDT | 04/13/2026 at 1200 MDT | CAPE... 0.0 LI... +5.7 | CAPE... 0.0 LI... +3.7 CINH... 0.0 K Index... -3.8 | CINH... 0.0 K Index... +0.3 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -57.4 -71.3 240 42 22 -3.1 -1.7 | -56.8 -70.2 230 35 18 -2.7 -1.5 45000 -62.2 -80.0 235 73 38 -1.8 -1.0 | -61.0 -77.8 240 81 42 -1.8 -1.0 40000 -62.4 -80.3 235 77 40 -0.1 -0.1 | -61.9 -79.4 235 83 43 -0.6 -0.3 38000 -60.0 -76.0 235 78 40 7.6 4.2 | -59.9 -75.8 235 83 43 6.9 3.8 36000 -55.4 -67.7 235 79 40 7.6 4.2 | -55.8 -68.4 230 83 43 6.9 3.8 34000 -50.8 -59.4 230 79 40 7.9 4.3 | -51.5 -60.7 230 82 42 8.1 4.4 32000 -46.1 -51.0 230 76 39 7.9 4.3 | -46.7 -52.1 235 79 41 8.0 4.4 30000 -41.1 -42.0 230 72 37 5.7 3.1 | -41.5 -42.7 235 74 38 6.5 3.6 29000 -39.5 -39.1 230 69 35 5.6 3.1 | -39.6 -39.3 235 71 37 6.5 3.6 28000 -37.8 -36.0 230 66 34 5.6 3.1 | -37.6 -35.7 235 68 35 6.5 3.6 27000 -36.0 -32.8 230 63 33 6.9 3.8 | -35.7 -32.3 235 65 33 6.2 3.4 26000 -33.8 -28.8 230 61 31 7.4 4.1 | -33.9 -29.0 240 62 32 6.1 3.4 25000 -31.6 -24.9 230 58 30 7.5 4.1 | -32.0 -25.6 240 60 31 6.1 3.4 24000 -29.4 -20.9 230 55 28 7.6 4.2 | -30.2 -22.4 245 57 30 6.8 3.7 23000 -27.0 -16.6 235 52 27 7.8 4.3 | -27.9 -18.2 245 55 28 7.9 4.3 22000 -24.7 -12.5 240 49 25 7.8 4.3 | -25.5 -13.9 250 52 27 7.9 4.3 21000 -22.3 -8.1 245 45 23 8.0 4.4 | -23.1 -9.6 250 50 26 8.3 4.6 20000 -19.9 -3.8 245 40 21 8.1 4.4 | -20.6 -5.1 250 45 23 8.4 4.6 19500 -18.7 -1.7 245 38 19 8.1 4.4 | -19.3 -2.7 250 43 22 8.4 4.6 19000 -17.5 0.5 245 35 18 8.1 4.4 | -18.1 -0.6 250 41 21 8.5 4.6 18500 -16.3 2.7 245 32 17 7.5 4.1 | -16.8 1.8 250 39 20 8.8 4.8 18000 -15.2 4.6 245 29 15 6.8 3.8 | -15.4 4.3 250 34 18 9.2 5.0 17500 -14.2 6.4 240 25 13 6.8 3.7 | -14.0 6.8 245 30 15 9.2 5.1 17000 -13.2 8.2 240 23 12 7.4 4.1 | -12.7 9.1 240 27 14 8.4 4.6 16500 -12.1 10.2 240 21 11 7.3 4.0 | -11.5 11.3 240 26 13 8.5 4.7 16000 -11.0 12.2 240 20 10 7.5 4.1 | -10.3 13.5 235 26 13 7.1 3.9 15500 -9.3 15.3 245 23 12 7.8 4.3 | -8.8 16.2 240 30 16 7.0 3.8 15000 -8.3 17.1 245 25 13 4.9 2.7 | -7.9 17.8 245 33 17 4.4 2.4 14500 -7.6 18.3 245 27 14 4.8 2.7 | -7.3 18.9 250 34 17 4.5 2.5 14000 -6.9 19.6 245 29 15 5.1 2.8 | -6.7 19.9 255 34 18 3.6 2.0 13500 -6.1 21.0 245 29 15 5.2 2.9 | -6.2 20.8 255 31 16 3.4 1.9 13000 -5.4 22.3 245 29 15 5.8 3.2 | -5.8 21.6 250 28 14 4.0 2.2 12500 -4.5 23.9 245 27 14 6.3 3.5 | -5.2 22.6 250 22 11 4.4 2.4 12000 -3.6 25.5 245 25 13 7.3 4.0 | -4.6 23.7 245 16 8 6.7 3.7 11500 -2.3 27.9 245 26 14 8.2 4.5 | -3.3 26.1 245 12 6 8.6 4.7 11000 -1.1 30.0 250 28 14 6.3 3.4 | -2.0 28.4 240 9 5 8.1 4.5 10500 -0.5 31.1 255 27 14 3.8 2.1 | -0.9 30.4 240 8 4 6.8 3.7 10250 -0.2 31.6 255 27 14 5.7 3.1 | -0.3 31.5 240 7 3 11.2 6.1 10000 0.3 32.5 255 26 13 7.8 4.3 | 0.7 33.3 240 6 3 12.4 6.8 9750 0.8 33.4 255 24 12 7.2 4.0 | 1.4 34.5 240 6 3 8.8 4.8 9500 1.4 34.5 255 21 11 7.4 4.1 | 2.2 36.0 240 6 3 9.9 5.4 9250 1.9 35.4 255 19 10 7.2 4.0 | 2.9 37.2 240 5 3 8.9 4.9 9000 2.4 36.3 255 16 8 8.0 4.4 | 3.5 38.3 245 5 3 9.0 5.0 8750 3.1 37.6 255 15 8 9.0 5.0 | 4.3 39.7 245 5 3 10.3 5.6 8500 3.8 38.8 255 15 7 8.9 4.9 | 5.0 41.0 245 5 3 10.1 5.5 8250 4.4 39.9 260 14 7 9.5 5.2 | 5.8 42.4 245 5 3 10.8 5.9 8000 5.2 41.4 260 13 6 10.0 5.5 | 6.6 43.9 245 5 3 11.2 6.2 7750 5.9 42.6 260 11 6 8.6 4.7 | 7.4 45.3 250 5 2 9.7 5.3 7500 6.5 43.7 260 10 5 7.7 4.2 | 8.1 46.6 250 5 2 8.9 4.9 7250 7.1 44.8 260 9 4 9.1 5.0 | 8.8 47.8 250 5 2 10.3 5.7 7000 7.8 46.0 260 7 4 10.1 5.5 | 9.6 49.3 250 5 2 11.4 6.2 6750 8.6 47.5 260 6 3 9.7 5.3 | 10.4 50.7 250 5 2 9.7 5.3 6500 9.3 48.7 260 5 2 9.8 5.4 | 11.1 52.0 255 5 2 9.6 5.3 6250 10.0 50.0 260 4 2 10.0 5.5 | 11.9 53.4 255 4 2 11.2 6.2 6000 10.8 51.4 260 4 2 10.0 5.5 | 12.8 55.0 255 4 2 11.4 6.3 5750 11.5 52.7 260 3 2 9.9 5.4 | 13.6 56.5 255 4 2 11.1 6.1 5500 12.3 54.1 260 3 1 12.8 7.0 | 14.6 58.3 260 4 2 18.6 10.2 04/13/2026 at 1500 MDT | 04/13/2026 at 1800 MDT | CAPE... 0.0 LI... +1.7 | CAPE... +3.9 LI... -0.2 CINH... 0.0 K Index... +11.3 | CINH... -37.5 K Index... +17.2 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 50000 -57.2 -71.0 235 42 22 -1.4 -0.8 | -58.5 -73.3 235 52 27 1.0 0.5 45000 -59.4 -74.9 240 75 39 -1.0 -0.6 | -57.0 -70.6 240 66 34 -0.2 -0.1 40000 -60.5 -76.9 240 82 42 -0.7 -0.4 | -58.9 -74.0 240 83 43 -1.2 -0.7 38000 -58.8 -73.8 235 84 43 6.0 3.3 | -57.9 -72.2 235 88 45 4.5 2.5 36000 -55.2 -67.4 235 85 44 6.0 3.3 | -55.2 -67.4 235 90 47 4.5 2.5 34000 -51.4 -60.5 235 85 44 7.8 4.3 | -52.3 -62.1 235 91 47 7.1 3.9 32000 -46.2 -51.2 235 81 42 7.7 4.2 | -48.2 -54.8 235 83 43 6.8 3.8 30000 -41.7 -43.1 235 76 39 6.7 3.7 | -43.6 -46.5 235 75 38 6.6 3.6 29000 -39.7 -39.5 235 72 37 6.7 3.7 | -41.6 -42.9 235 71 36 6.6 3.6 28000 -37.7 -35.9 235 69 35 6.7 3.7 | -39.7 -39.5 235 67 35 6.6 3.6 27000 -35.7 -32.3 235 65 34 6.5 3.6 | -37.7 -35.9 235 63 33 7.8 4.3 26000 -33.8 -28.8 235 63 33 6.5 3.6 | -35.1 -31.2 230 61 31 8.6 4.7 25000 -31.8 -25.2 240 62 32 6.5 3.6 | -32.5 -26.5 230 58 30 8.6 4.7 24000 -29.9 -21.8 240 60 31 6.9 3.8 | -30.0 -22.0 230 56 29 7.9 4.3 23000 -27.6 -17.7 240 56 29 7.6 4.2 | -28.1 -18.6 230 51 26 6.1 3.3 22000 -25.3 -13.5 240 52 27 7.6 4.2 | -26.2 -15.2 235 46 24 6.1 3.3 21000 -23.1 -9.6 245 48 25 7.5 4.1 | -24.3 -11.7 240 41 21 7.4 4.1 20000 -20.8 -5.4 245 45 23 7.5 4.1 | -22.0 -7.6 235 37 19 7.9 4.3 19500 -19.7 -3.5 240 44 22 7.5 4.1 | -20.8 -5.4 235 34 18 7.9 4.4 19000 -18.6 -1.5 240 42 22 7.5 4.1 | -19.6 -3.3 235 32 17 8.0 4.4 18500 -17.4 0.7 240 40 21 7.7 4.2 | -18.4 -1.1 230 30 15 8.4 4.6 18000 -16.3 2.7 235 37 19 7.9 4.4 | -17.1 1.2 230 29 15 8.8 4.8 17500 -15.1 4.8 235 35 18 7.9 4.3 | -15.8 3.6 225 28 14 8.8 4.8 17000 -13.9 7.0 230 33 17 8.5 4.7 | -14.5 5.9 220 27 14 9.0 4.9 16500 -12.6 9.3 225 32 17 8.5 4.7 | -13.2 8.2 220 26 14 9.0 5.0 16000 -10.9 12.4 225 30 16 6.9 3.8 | -11.2 11.8 220 25 13 9.0 4.9 15500 -9.9 14.2 225 29 15 7.1 3.9 | -9.9 14.2 220 24 13 9.0 4.9 15000 -8.9 16.0 225 27 14 6.7 3.7 | -8.6 16.5 220 24 12 9.0 4.9 14500 -7.9 17.8 225 25 13 6.7 3.7 | -7.3 18.9 215 23 12 9.0 4.9 14000 -6.9 19.6 230 23 12 7.7 4.2 | -5.9 21.4 215 22 12 9.2 5.1 13500 -5.8 21.6 225 21 11 8.0 4.4 | -4.5 23.9 210 21 11 9.3 5.1 13000 -4.6 23.7 225 18 9 8.4 4.6 | -3.1 26.4 210 20 11 9.2 5.1 12500 -3.3 26.1 225 16 8 8.6 4.7 | -1.8 28.8 205 19 10 9.2 5.0 12000 -2.0 28.4 220 13 7 8.6 4.7 | -0.4 31.3 205 18 9 9.2 5.1 11500 -0.7 30.7 220 10 5 8.4 4.6 | 1.0 33.8 200 16 8 9.2 5.1 11000 0.5 32.9 215 7 4 7.8 4.3 | 2.4 36.3 195 14 7 8.4 4.6 10500 1.6 34.9 215 5 3 6.5 3.6 | 3.5 38.3 195 11 6 7.1 3.9 10250 2.1 35.8 215 5 2 10.0 5.5 | 4.1 39.4 190 10 5 9.4 5.1 10000 3.1 37.6 215 4 2 11.7 6.4 | 4.9 40.8 185 8 4 10.1 5.6 9750 3.8 38.8 215 4 2 9.3 5.1 | 5.5 41.9 185 7 4 8.4 4.6 9500 4.5 40.1 215 3 2 10.2 5.6 | 6.2 43.2 185 6 3 8.8 4.8 9250 5.3 41.5 215 3 2 9.0 4.9 | 6.8 44.2 180 4 2 8.9 4.9 9000 5.9 42.6 220 3 1 9.2 5.1 | 7.5 45.5 180 3 2 9.0 4.9 8750 6.7 44.1 220 3 1 10.4 5.7 | 8.1 46.6 180 2 1 8.9 4.9 8500 7.4 45.3 220 3 1 10.0 5.5 | 8.8 47.8 185 1 1 8.7 4.8 8250 8.2 46.8 225 3 1 10.6 5.8 | 9.5 49.1 000 0 0 9.8 5.4 8000 9.0 48.2 225 2 1 10.8 5.9 | 10.3 50.5 340 1 0 11.0 6.0 7750 9.8 49.6 230 2 1 9.7 5.3 | 11.0 51.8 345 1 1 9.7 5.3 7500 10.5 50.9 230 2 1 9.0 5.0 | 11.7 53.1 345 2 1 8.9 4.9 7250 11.2 52.2 230 2 1 10.2 5.6 | 12.4 54.3 345 2 1 9.6 5.3 7000 12.0 53.6 235 2 1 11.2 6.1 | 13.2 55.8 345 3 1 10.2 5.6 6750 12.8 55.0 240 2 1 9.8 5.4 | 13.9 57.0 340 3 2 9.5 5.2 6500 13.5 56.3 240 2 1 9.6 5.3 | 14.6 58.3 340 3 2 9.2 5.0 6250 14.3 57.7 245 2 1 10.8 5.9 | 15.3 59.5 340 4 2 10.0 5.5 6000 15.1 59.2 245 2 1 11.8 6.5 | 16.1 61.0 340 4 2 10.6 5.8 5750 15.9 60.6 250 2 1 9.4 5.2 | 16.9 62.4 340 4 2 10.0 5.5 5500 16.7 62.1 255 2 1 14.6 8.0 | 17.6 63.7 340 4 2 10.8 5.9 ________________________________________________________________________________ This product is issued twice per day, once by approximately 0630 MST/0730 MDT (1330 UTC) and again by approximately 1830 MST/1930 MDT (0130 UTC). It is not continuously monitored nor updated after its initial issuance. The information contained herein is based on rawinsonde observation and/or numerical weather prediction model data taken near the old Stapleton Airport site in Denver, Colorado at North Latitude: 39 deg 46 min 5.016 sec West Longitude: 104 deg 52 min 9.984 sec Elevation: 5285 feet (1611 meters) and may not be representative of other areas along the Front Range of the Colorado Rocky Mountains. Note that some elevations in numerical weather prediction models differ from actual station elevations, which can lead to data which appear to be below ground. Erroneous data such as these should not be used. The content and format of this report as well as the issuance times are subject to change without prior notice. Comments and suggestions are welcome and should be directed to one of the addresses or phone numbers shown at the bottom of this page. To expedite a response to comments, be sure to mention your interest in the soaring forecast. DEFINITIONS: CAPE (Convective Available Potential Energy) - An integrated measure of the energy available for convective development, also known as the positive area on a thermodynamic diagram. Units are Joules per kilogram. Larger values are indicative of greater instability and the possibility of stronger convective activity, including thunderstorms. Values around or greater than 1000 suggest the possibility of severe weather should convective activity develop. CINH (Convective Inhibition) - An integrated measure of the amount of energy needed to initiate convective activity, also known as the negative area on a thermodynamic diagram. Units are Joules per kilogram. The more negative this number, the more energy is required to initiate convection. This inhibitive energy can be overcome through surface heating, cooling aloft, lifting mechanisms (orographic, frontal, gravity waves, etc.) Convective Condensation Level - The height to which an air parcel possessing the average saturation mixing ratio in the lowest 4000 feet of the airmass, if heated sufficiently from below, will rise dry adiabatically until it just becomes saturated. It estimates the base of cumulus clouds that are produced by surface heating only. Convection Temperature (ConvectionT) - The surface temperature required to make the airmass dry adiabatic up to the given level. It can be considered a "trigger temperature" for that level. Freezing Level - The height where the temperature is zero degrees Celsius. Height of Stable Layer - The height (between 12,000 and 18,000 feet above mean sea level) where the smallest lapse rate exists. The location and existence of this feature is important in the generation of mountain waves. K Index - A measure of stability which combines the temperature difference between approximately 5,000 and 18,000 feet above the surface, the amount of moisture at approximately 5,000 feet above the surface, and a measure of the dryness at approximately 10,000 feet above the surface. Larger positive numbers indicate more instability and a greater likelihood of thunderstorm development. One interpretation of K index values regarding soaring in the western United States is given in WMO Technical Note 158 and is reproduced in the following table: below -10 no or weak thermals -10 to 5 dry thermals or 1/8 cumulus with moderate thermals 5 to 15 good soaring conditions 15 to 20 good soaring conditions with occasional showers 20 to 30 excellent soaring conditions, but increasing probability of showers and thunderstorms above 30 more than 60 percent probability of thunderstorms Lapse Rate - The change with height of the temperature. Negative values indicate inversions. Lifted Condensation Level - The height to which an air parcel possessing the average dew point in the lowest 4000 feet of the airmass and the forecast maximum temperature must be lifted dry adiabatically to attain saturation. Lifted Index (LI) - The difference between the environmental temperature at a level approximately 18,000 feet above the surface and the temperature of an air parcel lifted dry adiabatically from the surface to its lifted condensation level and then pseudoadiabatically thereafter to this same level. The parcel's initial temperature is the forecast maximum temperature and its dew point is the average dew point in the lowest 4000 feet of the airmass. Negative values are indicative of instability with positive values showing stable conditions. Lift Rate - An experimental estimate of the strength of thermals. It is computed the same way as the maximum rate of lift but uses the actual level rather than the maximum height of thermals in the calculation. Also, none of the empirical adjustments based on cloudiness and K-index are applied to these calculations. Maximum Height of Thermals - The height where the dry adiabat through the forecast maximum temperature intersects the environmental temperature. Maximum Rate of Lift - An estimate of the maximum strength of thermals. It is computed from an empirical formula which combines the expected maximum height of thermals with the difference in the environmental temperatures between the maximum height of thermals and the temperature 4,000 feet above the ground. After this computation, further empirical adjustments are made based on the value of the K-index and the amount and opacity of middle and high level cloudiness expected between the time of trigger temperature and the time of overdevelopment. Middle/High Clouds - The amount and opacity of middle (altostratus, altocumulus) or high (cirrus, cirrostratus, cirrocumulus) clouds. Broken means that between 60% and 90% of the sky is covered by the cloud, with overcast conditions occurring when more than 90% of the sky is covered by the cloud. Thin implies that the clouds are predominantly transparent, meaning that some sunlight is reaching the ground, in contrast to opaque which suggests that little sunlight is reaching the ground. Potential Height of Wave - The minimum of the following two heights: 1. Level above the height of stable layer (or 14,000 feet if none exists) where the wind direction changes by 30 degrees or more 2. Level above the height of stable layer (or 14,000 feet if none exists) where the wind speed no longer increases with height PVA/NVA - Positive vorticity advection (PVA)/negative vorticity advection (NVA) on the 500 millibar isobaric surface (approximately 18,000 feet above mean sea level). Weak PVA has been shown to assist in mountain wave soaring. Soaring Window - The time between the time the trigger temperature is reached and the time of overdevelopment. Thermal Index - The difference between the environmental temperature and the temperature at a particular level determined by following the dry adiabat through the forecast maximum temperature up to that level. Negative values are indicative of thermal lift. Thermal Soaring Index - An adjective rating (for sailplanes) based on the computed maximum rate of lift, and the wind speed and middle and high cloud cover expected during the soaring window (the time of the trigger temperature and the time of overdevelopment) according to the following: Maximum rate of lift Adjective Rating >= 800 fpm Excellent >= 400 and < 800 fpm Good >= 200 and < 400 fpm Fair < 200 fpm Poor Time of Overdevelopment - The time one or more of the following phenomena, which essentially shut off thermal lift, is expected to occur: 1. formation of broken to overcast convective cloud cover 2. formation of scattered to numerous downbursts 3. initiation of widespread precipitation Time of Trigger Temperature - The time the surface temperature is expected to reach the trigger temperature. Trigger Temperature - The surface temperature required to make the first 4000 feet of the atmosphere dry adiabatic. Wave Soaring Index - An empirical, adjective rating (for sailplanes) which attempts to combine a variety of phenomena important in mountain wave soaring into a single index number. Objective points are assigned to these phenomena: wind speed and direction at 14,000 ft MSL, the static stability in the 12,000-18,000 ft MSL layer, the wind speed gradient above the stable layer, jet stream location and frontal and upper trough movements. 042613  804 UXAK48 PAKN 131201 COR FZLAKN AKN 1200 RADAT ZERO=  914 UXUS97 KSLC 131228 SRGSLC Soaring Forecast National Weather Service Salt Lake City, Utah 628 AM MDT Monday, April 13, 2026 This forecast is for Monday, April 13, 2026: If the trigger temperature of 46.3 F/7.9 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1058 ft/min (5.4 m/s) Maximum height of thermals.................. 17147 ft MSL (12273 ft AGL) Forecast maximum temperature................... 59.0 F/15.5 C Time of trigger temperature.................... 0930 MDT Time of overdevelopment........................ None Middle/high clouds during soaring window....... None Surface winds during soaring window............ 20 mph or less Height of the -3 thermal index................. 12977 ft MSL (8103 ft AGL) Thermal soaring outlook for Tuesday 04/14...... Good Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:51:25 / 20:05:06 MDT Total possible sunshine........... 13 hr 13 min 41 sec (793 min 41 sec) Altitude of sun at 13:28:16 MDT... 57.87 degrees Upper air data from numerical model forecast valid on 04/13/2026 at 0600 MDT Freezing level.................. 6796 ft MSL (1922 ft AGL) Convective condensation level... 9858 ft MSL (4984 ft AGL) Lifted condensation level....... 12369 ft MSL (7495 ft AGL) Lifted index.................... -1.8 K index......................... +11.0 Height Temperature Wind Wind Spd Lapse Rate ConvectionT Thermal Lift Rate ft MSL deg C deg F Dir kt m/s C/km F/kft deg C deg F Index fpm m/s -------------------------------------------------------------------------------- 26000 -40.0 -40.0 240 68 35 6.1 3.4 25.2 77.3 7.9 M M 24000 -36.3 -33.3 240 61 32 6.1 3.3 22.4 72.3 5.9 M M 22000 -32.7 -26.9 240 52 27 6.1 3.4 19.7 67.5 3.9 M M 20000 -28.7 -19.7 240 44 23 7.6 4.2 17.5 63.5 2.1 M M 18000 -23.7 -10.7 240 39 20 6.9 3.8 15.8 60.4 0.6 M M 16000 -19.6 -3.3 250 35 18 7.2 3.9 13.9 57.0 -1.1 945 4.8 14000 -15.1 4.8 260 29 15 7.8 4.3 12.4 54.3 -2.5 752 3.8 12000 -10.3 13.5 265 19 10 7.8 4.3 11.3 52.4 -3.6 549 2.8 10000 -6.4 20.5 270 9 5 6.5 3.6 9.4 48.9 -5.6 372 1.9 9000 -4.4 24.1 270 7 3 8.1 4.5 8.5 47.4 -6.6 283 1.4 8000 -2.4 27.7 260 5 2 6.6 3.6 7.7 45.8 -7.6 193 1.0 7000 -0.5 31.1 225 4 2 6.3 3.4 6.7 44.0 -8.7 108 0.5 6000 1.2 34.2 200 5 2 6.0 3.3 5.6 42.1 -10.0 25 0.1 5000 2.7 36.9 175 3 2 -1.1 -0.6 4.2 39.5 -11.6 M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/13/2026 at 0900 MDT | 04/13/2026 at 1200 MDT | CAPE... +22.4 LI... +1.4 | CAPE... +126.3 LI... +0.4 CINH... -12.9 K Index... +8.3 | CINH... -0.4 K Index... +11.3 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 26000 -40.5 -40.9 235 64 33 6.8 3.7 | -40.3 -40.5 235 59 31 6.7 3.7 24000 -36.4 -33.5 235 58 30 6.7 3.7 | -36.3 -33.3 235 51 26 6.7 3.7 22000 -32.5 -26.5 240 52 27 6.4 3.5 | -32.4 -26.3 240 45 23 6.5 3.6 20000 -28.5 -19.3 240 46 24 7.4 4.1 | -28.2 -18.8 240 40 20 7.7 4.2 18000 -23.5 -10.3 245 39 20 7.7 4.3 | -23.1 -9.6 240 35 18 7.4 4.1 16000 -19.0 -2.2 250 34 18 7.1 3.9 | -18.9 -2.0 245 29 15 6.4 3.5 14000 -15.0 5.0 255 28 14 6.6 3.6 | -15.0 5.0 245 23 12 7.1 3.9 12000 -11.0 12.2 255 18 9 7.2 4.0 | -10.6 12.9 240 16 8 7.8 4.3 10000 -6.6 20.1 235 9 5 7.0 3.9 | -6.0 21.2 220 11 6 7.5 4.1 9000 -4.4 24.1 225 7 3 8.3 4.6 | -3.6 25.5 215 9 5 9.4 5.2 8000 -2.3 27.9 210 6 3 7.4 4.1 | -1.2 29.8 215 8 4 9.5 5.2 7000 -0.2 31.6 195 7 3 6.6 3.6 | 1.6 34.9 220 6 3 9.5 5.2 6000 1.7 35.1 180 7 4 7.0 3.8 | 4.3 39.7 230 6 3 10.2 5.6 5000 4.2 39.6 170 5 3 16.6 9.1 | 8.0 46.4 245 5 2 24.7 13.5 04/13/2026 at 1500 MDT | 04/13/2026 at 1800 MDT | CAPE... +112.1 LI... 0.0 | CAPE... 0.0 LI... +2.0 CINH... -6.3 K Index... +15.9 | CINH... -0.1 K Index... +4.8 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 26000 -40.2 -40.4 235 51 26 7.2 4.0 | -40.3 -40.5 230 42 22 7.7 4.2 24000 -35.9 -32.6 235 44 23 7.2 3.9 | -35.7 -32.3 230 36 19 7.7 4.2 22000 -31.6 -24.9 235 38 20 7.1 3.9 | -31.1 -24.0 230 33 17 7.8 4.3 20000 -27.4 -17.3 235 33 17 6.9 3.8 | -26.4 -15.5 225 31 16 7.8 4.3 18000 -22.8 -9.0 235 29 15 7.0 3.8 | -21.2 -6.2 225 29 15 7.5 4.1 16000 -18.6 -1.5 235 24 12 6.8 3.7 | -16.8 1.8 230 24 12 7.2 3.9 14000 -14.4 6.1 230 20 10 7.9 4.3 | -12.6 9.3 240 19 10 7.0 3.8 12000 -9.5 14.9 225 16 8 8.6 4.7 | -8.4 16.9 255 15 8 7.5 4.1 10000 -4.4 24.1 230 12 6 8.1 4.4 | -3.7 25.3 280 12 6 8.1 4.4 9000 -1.9 28.6 235 10 5 9.1 5.0 | -1.2 29.8 290 11 6 9.1 5.0 8000 0.6 33.1 255 7 4 8.5 4.7 | 1.3 34.3 305 10 5 8.5 4.6 7000 3.2 37.8 275 7 3 9.6 5.3 | 3.7 38.7 320 9 5 8.5 4.6 6000 5.9 42.6 295 6 3 10.9 6.0 | 6.2 43.2 335 9 5 10.2 5.6 5000 11.2 52.2 315 6 3 1.8 1.0 | 9.6 49.3 340 8 4 21.1 11.6 ________________________________________________________________________________ This product is issued once per day by approximately 0600 MST/0700 MDT (1300 UTC). This product is not continuously monitored nor updated after the initial issuance. The information contained herein is based on the 1200 UTC rawinsonde observation at the Salt Lake City, Utah International Airport and/or numerical weather prediction model data representative of the airport. These data may not be representative of other areas along the Wasatch Front. Erroneous data such as these should not be used. The content and format of this report as well as the issuance times are subject to change without prior notice. 042025  201 UXUS43 KDLH 131200 FZLINL INL 1200 RADAT 90M026027086/2=  227 UXUS46 KSGX 131201 COR FZLNKX NKX 1200 RADAT 99071=  651 UXUS44 KEWX 131201 COR FZLDRT DRT 1200 RADAT 73126=  432 UXAK47 PAYA 131201 COR FZLYAK YAK 1200 RADAT 94010=  140 UXUS46 KSEW 131201 COR FZLUIL UIL 1200 RADAT 97041=  804 UXAK48 PACD 131201 COR FZLCDB CDB 1200 RADAT ZERO=  977 UXAK47 PANT 131201 COR FZLANN ANN 1200 RADAT 74022=  739 UXAK49 PAOM 131201 COR FZLOME OME 1200 RADAT ZERO=  230 UBUS35 KWBC 131250 PIRUS AGC UUA /OV AGC/TM 1244/FLDURD/TP CL35/TB MDT BLO 040/RM LLWS -10-15KT BLO 100FT AGL=  142 UXAK48 PABE 131201 COR FZLBET BET 1200 RADAT ZERO=  717 UXAK48 PADQ 131201 COR FZLADQ ADQ 1200 RADAT 58003=  236 UXUS43 KDTX 131201 COR FZLDTX DTX 1200 RADAT 35108=  863 UXAK49 PAFA 131201 COR FZLFAI FAI 1200 RADAT 87L005///015=  256 UXUS46 KPQR 131201 COR FZLSLE SLE 1200 RADAT 00048=  265 UXAK48 PAFC 131201 COR FZLANC ANC 1200 RADAT 59015=  618 UXHW40 PHTO 131201 COR FZLITO ITO 1200 RADAT 53157=