215 UXAK48 PADQ 121200 FZLADQ ADQ 1200 RADAT 59019=  214 UXUS45 KRIW 121200 FZLRIW RIW 1200 RADAT 38098=  858 UXUS46 KSGX 121200 FZLNKX NKX 1200 RADAT 16104=  333 UXUS44 KBRO 121200 FZLBRO BRO 1200 RADAT 66143=  535 UXAK48 PAKN 121200 FZLAKN AKN 1200 RADAT ZERO=  006 UXUS43 KBIS 121200 FZLBIS BIS 1200 RADAT 61107=  356 UXAK48 PACD 121200 FZLCDB CDB 1200 RADAT 83013=  861 UXAK48 PABE 121200 FZLBET BET 1200 RADAT ZERO=  030 UXUS45 KREV 121200 FZLREV REV 1200 RADAT 62L056062063=  144 UXAK49 PAFA 121200 FZLFAI FAI 1200 RADAT 84L005///014=  630 UXUS44 KFWD 121200 FZLFWD FWD 1200 RADAT 41139=  934 UXUS46 KSEW 121200 FZLUIL UIL 1200 RADAT 99065=  019 UXGM40 PGUM 121200 FZLGUM GUM 1200 RADAT 03162=  826 UXAK49 PAOM 121200 FZLOME OME 1200 RADAT ZERO=  391 UXUS41 KBUF 121200 FZLBUF BUF 1200 RADAT 67095=  667 UXUS44 KMAF 121200 FZLMAF MAF 1200 RADAT 45122=  079 UXUS44 KEPZ 121200 FZLEPZ EPZ 1200 RADAT 64114=  031 UXAK48 PAFC 121200 FZLANC ANC 1200 RADAT ZERO=  901 UXUS45 KVEF 121200 FZLVEF VEF 1200 RADAT 18098=  426 UXUS45 KGGW 121200 FZLGGW GGW 1200 RADAT 67090=  874 UXUS46 KMTR 121200 FZLOAK OAK 1200 RADAT 98055=  039 UXUS44 KJAN 121200 FZLJAN JAN 1200 RADAT 05135=  389 UXAK47 PAYA 121200 FZLYAK YAK 1200 RADAT 96L001///032=  615 UXAK49 PAMC 121200 FZLMCG MCG 1200 RADAT 82006=  925 UXUS46 KPQR 121200 FZLSLE SLE 1200 RADAT 82070=  151 UXUS41 KGYX 121200 FZLGYX GYX 1200 RADAT 41019=  275 UXUS41 KALY 121200 FZLALY ALY 1200 RADAT 48L026056084/2=  995 UXUS43 KDTX 121200 FZLDTX DTX 1200 RADAT 91104=  274 UXUS43 KILX 121200 FZLILX ILX 1200 RADAT 79106=  079 UXUS43 KMPX 121200 FZLMPX MPX 1200 RADAT 84112=  129 UXAK47 PANT 121200 FZLANN ANN 1200 RADAT 68053=  851 UXUS41 KCAR 121200 FZLCAR CAR 1200 RADAT ZERO=  181 UXKA40 PTKK 121200 FZLTKK TKK 1200 RADAT 46163=  431 UXUS42 KMHX 121200 FZLMHX MHX 1200 RADAT 77L094095105=  276 UXHW40 PHTO 121200 FZLITO ITO 1200 RADAT 81144=  421 UXUS41 KLWX 121200 FZLIAD IAD 1200 RADAT 50105=  604 UXZS40 NSTU 121200 FZLPPG PPG 1200 RADAT 71154=  731 UXUS41 KPBZ 121200 FZLPBZ PBZ 1200 RADAT 52104=  601 UXUS43 KSGF 121200 FZLSGF SGF 1200 RADAT 70119=  705 UXUS42 KJAX 121200 FZLJAX JAX 1200 RADAT 04128=  773 UXUS42 KCHS 121200 FZLCHS CHS 1200 RADAT 53L103109112=  807 UXHW40 PHLI 121200 FZLLIH LIH 1200 RADAT 88136=  145 UXUS42 KTBW 121200 FZLTBW TBW 1200 RADAT 01140=  889 UXUS44 KOHX 121200 FZLOHX OHX 1200 RADAT 09121=  151 UXUS41 KOKX 121200 FZLOKX OKX 1200 RADAT 86L000094=  092 UXKA40 PTTP 121200 FZLTTP TTP 1200 RADAT 20160=  051 UXMH40 PKMR 121200 FZLKMR KMR 1200 RADAT 70157  877 UXUS41 KILN 121200 FZLILN ILN 1200 RADAT 78103=  264 UXUS44 KLIX 121200 FZLLIX LIX 1200 RADAT 03142=  680 UXKA40 PTKR 121200 FZLTKR TKR 1200 RADAT 12159=  122 UXUS42 TJSJ 121200 FZLSJU SJU 1200 RADAT 43146=  035 UXAK49 PABR 121200 FZLBRW BRW 1200 RADAT ZERO=  933 UXAK48 PADQ 121200 FZLADQ ADQ 1200 RADAT 61018=  380 UXUS44 KBMX 121200 FZLBMX BMX 1200 RADAT 07133=  361 UXUS43 KAPX 121200 FZLAPX APX 1200 RADAT 95092=  835 UXKA40 PTYA 121200 FZLT11 T11 1200 RADAT 08158=  466 UAFJ01 NFFN 121200 NIL  292 UXUS42 KFFC 121200 FZLFFC FFC 1200 RADAT 07128=  536 UXAK48 PAKN 121201 COR FZLAKN AKN 1200 RADAT ZERO=  589 UXUS41 KRNK 121200 FZLRNK RNK 1200 RADAT 41103=  790 UXUS97 KPUB 121210 SRGPUB Soaring Forecast National Weather Service Pueblo, Colorado 0609 MDT Sunday, April 12, 2026 This forecast is for Sunday, April 12, 2026: If the trigger temperature of 51.8 F/11.0 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1435 ft/min (7.3 m/s) Maximum height of thermals.................. 23185 ft MSL (15558 ft AGL) Forecast maximum temperature................... 71.0 F/22.1 C Time of trigger temperature.................... 0830 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................. 18023 ft MSL (10396 ft AGL) Thermal soaring outlook for Monday 04/13....... Excellent Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:26:29 / 19:33:28 MDT Total possible sunshine........... 13 hr 6 min 59 sec (786 min 59 sec) Altitude of sun at 12:59:58 MDT... 59.92 degrees Upper air data from numerical model forecast valid on 04/12/2026 at 0600 MDT Freezing level.................. 11301 ft MSL (3674 ft AGL) Convective condensation level... 15301 ft MSL (7674 ft AGL) Lifted condensation level....... 18386 ft MSL (10759 ft AGL) Lifted index.................... -4.8 K index......................... -11.4 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 -59.2 -74.6 230 39 20 1.1 0.6 M M M M M 45000 -57.5 -71.5 225 40 21 -0.2 -0.1 M M M M M 40000 -59.2 -74.6 230 38 20 -1.1 -0.6 M M M M M 38000 -58.3 -72.9 230 38 20 4.2 2.3 M M M M M 36000 -55.5 -67.9 230 39 20 4.2 2.3 M M M M M 34000 -52.5 -62.5 230 38 20 7.3 4.0 M M M M M 32000 -48.1 -54.6 230 35 18 7.4 4.1 M M M M M 30000 -43.4 -46.1 230 31 16 8.6 4.7 24.6 76.4 2.3 M M 29000 -40.8 -41.4 230 29 15 8.6 4.7 24.1 75.4 1.9 M M 28000 -38.3 -36.9 230 27 14 8.6 4.7 23.7 74.7 1.6 M M 27000 -35.7 -32.3 235 25 13 8.5 4.7 23.4 74.1 1.4 M M 26000 -33.1 -27.6 235 24 12 8.5 4.7 22.8 73.1 0.9 M M 25000 -30.6 -23.1 240 23 12 8.5 4.7 22.4 72.2 0.6 M M 24000 -28.0 -18.4 240 22 11 8.6 4.7 22.0 71.6 0.3 M M 23000 -25.4 -13.7 240 22 11 9.0 4.9 21.6 70.9 -0.0 1428 7.3 22000 -22.0 -7.6 240 21 11 9.0 4.9 21.3 70.3 -0.3 1290 6.6 21000 -19.5 -3.1 235 21 11 7.3 4.0 20.9 69.6 -0.7 1185 6.0 20000 -17.3 0.9 230 20 10 7.4 4.1 20.0 68.1 -1.4 1088 5.5 19500 -16.1 3.0 225 20 10 7.4 4.1 19.7 67.4 -1.8 1040 5.3 19000 -15.0 5.0 225 19 10 7.5 4.1 19.3 66.7 -2.1 992 5.0 18500 -14.0 6.8 220 19 10 6.1 3.4 18.9 65.9 -2.5 946 4.8 18000 -13.1 8.4 220 17 9 6.0 3.3 18.2 64.8 -3.1 904 4.6 17500 -12.2 10.0 220 15 8 5.6 3.1 17.6 63.7 -3.6 862 4.4 17000 -11.5 11.3 225 13 7 4.8 2.6 16.8 62.2 -4.4 826 4.2 16500 -10.7 12.7 225 12 6 4.7 2.6 16.0 60.8 -5.2 790 4.0 16000 -10.0 14.0 235 11 6 5.4 3.0 15.2 59.4 -5.9 753 3.8 15500 -9.2 15.4 250 11 6 5.4 3.0 14.5 58.1 -6.7 714 3.6 15000 -8.4 16.9 260 13 7 5.5 3.0 13.8 56.8 -7.4 676 3.4 14500 -7.7 18.1 265 16 8 5.7 3.1 13.1 55.6 -8.1 638 3.2 14000 -6.9 19.6 270 20 10 6.7 3.7 12.5 54.4 -8.8 600 3.0 13500 -5.8 21.6 270 24 12 7.9 4.3 12.1 53.8 -9.3 553 2.8 13000 -4.7 23.5 270 28 14 10.8 5.9 11.8 53.2 -9.7 506 2.6 12500 -3.3 26.1 275 27 14 7.1 3.9 11.9 53.4 -9.8 447 2.3 12000 -2.2 28.0 275 27 14 8.3 4.5 11.5 52.8 -10.2 399 2.0 11750 -1.5 29.3 275 26 14 10.4 5.7 11.5 52.7 -10.2 371 1.9 11500 -0.7 30.7 275 25 13 9.8 5.4 11.6 52.8 -10.2 341 1.7 11250 -0.0 32.0 275 24 13 8.6 4.7 11.5 52.7 -10.3 314 1.6 11000 0.6 33.1 280 23 12 8.9 4.9 11.4 52.6 -10.4 287 1.5 10750 1.3 34.3 280 23 12 8.9 4.9 11.4 52.5 -10.5 260 1.3 10500 1.9 35.4 275 24 12 8.9 4.9 11.3 52.3 -10.6 232 1.2 10250 2.6 36.7 275 25 13 9.3 5.1 11.3 52.3 -10.7 205 1.0 10000 3.3 37.9 275 25 13 9.4 5.2 11.2 52.2 -10.8 177 0.9 9750 4.0 39.2 275 24 13 9.0 4.9 11.2 52.1 -10.9 149 0.8 9500 4.6 40.3 275 23 12 9.0 4.9 11.1 52.0 -11.0 122 0.6 9250 5.3 41.5 270 22 11 8.7 4.8 11.1 51.9 -11.1 95 0.5 9000 5.9 42.6 270 21 11 7.0 3.8 10.9 51.7 -11.2 70 0.4 8750 6.3 43.3 265 19 10 6.2 3.4 10.7 51.2 -11.5 49 0.2 8500 6.8 44.2 265 18 9 5.3 2.9 10.4 50.7 -11.8 27 0.1 8250 7.3 45.1 260 17 9 9.1 5.0 10.1 50.2 -12.1 6 0.0 8000 7.7 45.9 255 16 8 -3.9 -2.1 9.9 49.8 -12.4 M M 7750 6.2 43.2 255 11 6 -36.5 -20.0 7.6 45.6 -14.7 23 0.1 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 * * * * * * 04/12/2026 at 0900 MDT | 04/12/2026 at 1200 MDT | CAPE... 0.0 LI... +2.8 | CAPE... 0.0 LI... +2.0 CINH... 0.0 K Index... -11.2 | CINH... 0.0 K Index... -6.5 | 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 04/12/2026 at 1500 MDT | 04/12/2026 at 1800 MDT | CAPE... +39.5 LI... -0.8 | CAPE... +42.6 LI... -0.6 CINH... -0.7 K Index... +19.0 | CINH... -3.0 K Index... +18.6 | 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 -63.5 -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  263 UXUS42 KRAH 121200 FZLGSO GSO 1200 RADAT 38103=  549 UXUS97 KPUB 121213 SRGPUB Soaring Forecast National Weather Service Pueblo, Colorado 0613 MDT Sunday, April 12, 2026 This forecast is for Villa Grove, CO for Sunday, April 12, 2026: If the trigger temperature of 44.6 F/7.0 C is reached...then Thermal Soaring Index....................... Good Maximum rate of lift........................ 1205 ft/min (6.1 m/s) Maximum height of thermals.................. 22186 ft MSL (13220 ft AGL) Forecast maximum temperature................... 63.0 F/17.7 C Time of trigger temperature.................... 0930 MDT Time of overdevelopment........................ None Middle/high clouds during soaring window....... None Surface winds during soaring window............ Between 20 mph and 30 mph Height of the -3 thermal index................. 17527 ft MSL (8561 ft AGL) Thermal soaring outlook for Monday 04/13....... Good Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:31:33 / 19:36:59 MDT Total possible sunshine........... 13 hr 5 min 25 sec (785 min 25 sec) Altitude of sun at 13:04:16 MDT... 60.61 degrees Upper air data from numerical model forecast valid on 04/12/2026 at 0600 MDT Freezing level.................. 9001 ft MSL (35 ft AGL) Additional freezing level....... 11236 ft MSL (2270 ft AGL) Convective condensation level... 17411 ft MSL (8445 ft AGL) Lifted condensation level....... 18954 ft MSL (9988 ft AGL) Lifted index.................... -3.0 K index......................... -16.0 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 -------------------------------------------------------------------------------- 50000 -58.7 -73.7 230 39 20 0.4 0.2 M M M M M 45000 -58.1 -72.6 230 42 22 -1.0 -0.6 M M M M M 40000 -61.2 -78.2 250 27 14 -2.1 -1.1 M M M M M 38000 -60.0 -76.0 250 24 12 5.8 3.2 M M M M M 36000 -56.5 -69.7 240 23 12 5.8 3.2 M M M M M 34000 -52.8 -63.0 230 22 12 7.7 4.2 M M M M M 32000 -47.6 -53.7 225 22 11 7.6 4.2 M M M M M 30000 -42.8 -45.0 220 21 11 8.8 4.8 20.9 69.7 2.9 M M 29000 -40.1 -40.2 220 21 11 8.8 4.9 20.5 68.9 2.6 M M 28000 -37.5 -35.5 220 21 11 8.8 4.9 20.2 68.4 2.4 M M 27000 -34.8 -30.6 225 21 11 8.5 4.7 20.0 67.9 2.2 M M 26000 -32.3 -26.1 230 23 12 8.5 4.7 19.4 66.9 1.8 M M 25000 -29.7 -21.5 240 24 13 8.5 4.7 19.0 66.2 1.5 M M 24000 -27.1 -16.8 245 26 14 8.1 4.4 18.6 65.6 1.2 M M 23000 -24.8 -12.6 245 26 14 7.7 4.2 17.8 64.1 0.5 M M 22000 -22.5 -8.5 245 27 14 7.7 4.2 17.1 62.8 -0.1 1190 6.0 21000 -20.2 -4.4 245 27 14 8.1 4.4 16.5 61.7 -0.6 1090 5.5 20000 -17.8 -0.0 240 24 13 8.1 4.4 15.9 60.6 -1.2 988 5.0 19500 -16.5 2.3 235 23 12 8.1 4.4 15.6 60.1 -1.4 936 4.8 19000 -15.3 4.5 235 23 12 8.1 4.4 15.4 59.6 -1.7 885 4.5 18500 -14.1 6.6 230 22 11 7.1 3.9 15.1 59.2 -1.9 834 4.2 18000 -13.1 8.4 230 21 11 6.5 3.6 14.5 58.2 -2.4 790 4.0 17500 -12.2 10.0 225 21 11 6.5 3.6 14.0 57.2 -2.9 746 3.8 17000 -11.4 11.5 225 20 10 4.2 2.3 13.3 55.9 -3.6 708 3.6 16500 -10.7 12.7 230 19 10 4.5 2.5 12.4 54.3 -4.5 673 3.4 16000 -10.1 13.8 230 19 10 4.0 2.2 11.5 52.7 -5.3 639 3.2 15500 -9.2 15.4 240 20 11 3.8 2.1 10.1 50.1 -6.7 592 3.0 15000 -8.6 16.5 245 24 12 5.2 2.8 9.2 48.6 -7.6 558 2.8 14500 -7.9 17.8 255 30 15 4.4 2.4 8.5 47.3 -8.4 523 2.7 14000 -7.3 18.9 255 33 17 7.8 4.3 7.7 45.9 -9.3 488 2.5 13500 -6.0 21.2 260 34 18 8.9 4.9 7.6 45.7 -9.5 435 2.2 13000 -4.8 23.4 260 35 18 8.9 4.9 7.4 45.4 -9.8 383 1.9 12500 -3.3 26.1 260 36 18 9.5 5.2 7.4 45.3 -9.9 326 1.7 12000 -1.9 28.6 260 36 18 9.4 5.2 7.4 45.3 -10.0 269 1.4 11750 -1.2 29.8 260 35 18 9.2 5.1 7.3 45.2 -10.1 240 1.2 11500 -0.5 31.1 260 35 18 9.2 5.0 7.3 45.1 -10.2 212 1.1 11250 0.1 32.2 260 34 18 9.2 5.0 7.2 45.0 -10.2 184 0.9 11000 0.8 33.4 260 34 17 8.8 4.8 7.2 44.9 -10.3 157 0.8 10750 1.4 34.5 260 33 17 7.5 4.1 7.1 44.7 -10.5 132 0.7 10500 1.9 35.4 260 31 16 6.8 3.7 6.9 44.3 -10.7 110 0.6 10250 2.4 36.3 260 29 15 6.6 3.6 6.6 43.9 -11.0 88 0.4 10000 2.7 36.9 260 27 14 1.9 1.0 6.3 43.3 -11.4 70 0.4 9750 2.6 36.7 255 24 12 -2.3 -1.2 5.5 41.8 -12.3 66 0.3 9500 2.4 36.3 255 21 11 -1.7 -1.0 4.6 40.2 -13.2 63 0.3 9250 2.0 35.6 250 17 9 -12.1 -6.6 3.4 38.2 -14.4 68 0.3 9000 -0.3 31.5 240 8 4 -59.9 -32.9 0.3 32.6 -17.6 132 0.7 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 * * * * * * 04/12/2026 at 0900 MDT | 04/12/2026 at 1200 MDT | CAPE... 0.0 LI... +3.0 | CAPE... +22.9 LI... +1.3 CINH... 0.0 K Index... -24.6 | CINH... 0.0 K Index... -5.2 | 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 -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 04/12/2026 at 1500 MDT | 04/12/2026 at 1800 MDT | CAPE... +74.2 LI... -1.0 | CAPE... +54.8 LI... -0.9 CINH... -0.2 K Index... +13.5 | CINH... -4.0 K Index... +14.7 | 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 -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  852 UXUS44 KOUN 121200 FZLOUN OUN 1200 RADAT 00121=  513 UXUS43 KTOP 121200 FZLTOP TOP 1200 RADAT 59120=  513 UXUS97 KBOU 121222 SRGBOU Soaring Forecast National Weather Service Denver/Boulder, Colorado 0621 MDT Sunday, April 12, 2026 This forecast is for Sunday, April 12, 2026: If the trigger temperature of 63.3 F/17.4 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1076 ft/min (5.5 m/s) Maximum height of thermals.................. 17803 ft MSL (12378 ft AGL) Forecast maximum temperature................... 77.0 F/25.5 C Time of trigger temperature.................... 1000 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................. 16203 ft MSL (10778 ft AGL) Thermal soaring outlook for Monday 04/13....... Good Wave Soaring Index............................. Fair Wave Soaring Index trend (to 1800 MDT)......... No change Height of stable layer (12-18K ft MSL)......... 16971 ft MSL (11546 ft AGL) Weak PVA/NVA (through 1800 MDT)................ Weak PVA Potential height of wave....................... 17462 ft MSL (12037 ft AGL) Wave soaring outlook for Monday 04/13.......... Poor Remarks... Sunrise/Sunset.................... 06:25:48 / 19:34:33 MDT Total possible sunshine........... 13 hr 8 min 45 sec (788 min 45 sec) Altitude of sun at 13:00:10 MDT... 59.13 degrees Upper air data from numerical model forecast valid on 04/12/2026 at 0600 MDT Freezing level.................. 11337 ft MSL (5912 ft AGL) Convective condensation level... 19215 ft MSL (13790 ft AGL) Lifted condensation level....... 18981 ft MSL (13556 ft AGL) Lifted index.................... -0.4 K index......................... +7.0 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 -------------------------------------------------------------------------------- 50000 -58.6 -73.5 225 39 20 0.8 0.4 98.6 209.4 42.5 M M 45000 -57.4 -71.3 225 43 22 -0.5 -0.3 77.9 172.3 32.5 M M 40000 -59.9 -75.8 235 35 18 -1.6 -0.9 50.7 123.2 16.9 M M 38000 -59.1 -74.4 240 33 17 4.5 2.5 43.3 109.9 12.4 M M 36000 -56.0 -68.8 245 32 17 4.5 2.5 38.1 100.6 9.1 M M 34000 -52.9 -63.2 245 31 16 7.1 3.9 34.5 94.1 6.8 M M 32000 -48.6 -55.5 235 30 16 7.2 3.9 32.3 90.1 5.3 M M 30000 -44.0 -47.2 230 30 15 8.8 4.8 30.7 87.3 4.3 M M 29000 -41.4 -42.5 230 29 15 8.8 4.9 30.3 86.5 4.0 M M 28000 -38.7 -37.7 235 29 15 8.8 4.9 30.0 86.0 3.8 M M 27000 -36.1 -33.0 235 28 14 8.8 4.8 29.8 85.6 3.7 M M 26000 -33.5 -28.3 235 27 14 8.7 4.8 29.3 84.7 3.4 M M 25000 -30.8 -23.4 230 26 14 8.7 4.8 28.9 84.0 3.1 M M 24000 -28.2 -18.8 225 25 13 8.7 4.8 28.6 83.5 2.9 M M 23000 -25.7 -14.3 225 24 12 8.5 4.7 28.1 82.5 2.5 M M 22000 -22.5 -8.5 215 23 12 8.5 4.7 27.5 81.5 2.1 M M 21000 -19.9 -3.8 215 22 11 8.6 4.7 27.1 80.8 1.8 M M 20000 -17.4 0.7 220 22 11 8.6 4.7 26.7 80.0 1.4 M M 19500 -16.1 3.0 220 22 11 8.6 4.7 26.5 79.7 1.3 M M 19000 -14.8 5.4 225 22 11 8.8 4.9 26.3 79.4 1.1 M M 18500 -13.6 7.5 230 22 11 5.8 3.2 26.0 78.8 0.9 M M 18000 -12.8 9.0 235 23 12 5.4 3.0 25.2 77.4 0.2 M M 17500 -12.0 10.4 245 24 12 4.8 2.6 24.5 76.1 -0.4 1049 5.3 17000 -11.5 11.3 250 25 13 3.1 1.7 23.4 74.2 -1.4 1019 5.2 16500 -11.1 12.0 255 26 13 3.1 1.7 22.3 72.2 -2.4 991 5.0 16000 -10.6 12.9 260 25 13 4.1 2.3 21.3 70.3 -3.4 961 4.9 15500 -10.0 14.0 265 24 12 4.1 2.3 20.3 68.6 -4.3 929 4.7 15000 -9.4 15.1 265 22 12 6.3 3.4 19.5 67.1 -5.2 895 4.5 14500 -8.3 17.1 270 20 10 7.1 3.9 19.1 66.3 -5.6 850 4.3 14000 -7.3 18.9 270 17 9 8.0 4.4 18.6 65.5 -6.1 804 4.1 13500 -6.0 21.2 270 14 7 9.0 4.9 18.5 65.3 -6.3 750 3.8 13000 -4.6 23.7 270 12 6 9.0 4.9 18.4 65.1 -6.4 695 3.5 12500 -3.3 26.1 265 10 5 8.9 4.9 18.2 64.8 -6.6 641 3.3 12000 -2.0 28.4 265 9 4 8.9 4.9 18.1 64.6 -6.8 586 3.0 11500 -0.6 30.9 260 7 4 9.3 5.1 18.0 64.4 -6.9 531 2.7 11000 0.7 33.3 260 6 3 9.2 5.1 17.9 64.3 -7.0 475 2.4 10500 2.1 35.8 260 6 3 9.0 5.0 17.8 64.1 -7.2 419 2.1 10250 2.8 37.0 255 6 3 9.4 5.2 17.8 64.0 -7.2 391 2.0 10000 3.5 38.3 255 6 3 9.9 5.4 17.8 64.0 -7.2 362 1.8 9750 4.2 39.6 255 6 3 9.8 5.4 17.8 64.0 -7.3 333 1.7 9500 5.0 41.0 250 6 3 9.7 5.3 17.8 64.0 -7.3 304 1.5 9250 5.7 42.3 250 6 3 9.7 5.3 17.8 64.0 -7.3 275 1.4 9000 6.4 43.5 250 6 3 9.5 5.2 17.8 64.0 -7.3 246 1.2 8750 7.1 44.8 245 6 3 9.4 5.2 17.8 64.0 -7.4 217 1.1 8500 7.8 46.0 245 7 3 9.5 5.2 17.7 63.9 -7.4 189 1.0 8250 8.5 47.3 245 7 4 9.8 5.4 17.7 63.9 -7.5 160 0.8 8000 9.8 49.6 240 7 4 8.3 4.5 17.6 63.6 -7.7 106 0.5 7750 10.5 50.9 235 8 4 9.3 5.1 17.5 63.5 -7.7 79 0.4 7500 11.2 52.2 235 8 4 8.6 4.7 17.5 63.4 -7.8 51 0.3 7250 11.7 53.1 230 9 5 6.2 3.4 17.3 63.1 -8.0 27 0.1 7000 12.1 53.8 230 10 5 3.8 2.1 16.9 62.5 -8.4 9 0.0 6750 12.4 54.3 225 10 5 4.4 2.4 16.5 61.6 -8.9 M M 6500 12.6 54.7 225 11 6 1.6 0.9 16.0 60.9 -9.3 M M 6250 12.5 54.5 220 11 6 -2.2 -1.2 15.2 59.4 -10.2 M M 6000 12.4 54.3 220 11 6 -2.6 -1.4 14.3 57.8 -11.1 M M 5750 11.9 53.4 215 9 5 -10.4 -5.7 13.2 55.7 -12.3 M M 5500 10.2 50.4 210 7 3 -39.6 -21.7 10.8 51.4 -14.8 20 0.1 * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/12/2026 at 0900 MDT | 04/12/2026 at 1200 MDT | CAPE... 0.0 LI... +5.1 | CAPE... 0.0 LI... +4.7 CINH... 0.0 K Index... -0.7 | CINH... -0.4 K Index... +8.8 | 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 -------------------------------------------------------------------------------- 50000 -57.9 -72.2 220 36 19 0.7 0.4 | -56.8 -70.2 220 39 20 0.8 0.4 45000 -56.8 -70.2 220 37 19 -0.9 -0.5 | -55.7 -68.3 220 29 15 -1.5 -0.8 40000 -60.7 -77.3 240 35 18 -2.6 -1.4 | -61.4 -78.5 230 53 27 -3.8 -2.1 38000 -60.0 -76.0 240 36 18 5.1 2.8 | -60.9 -77.6 230 57 29 5.7 3.1 36000 -56.5 -69.7 235 37 19 5.1 2.8 | -57.1 -70.8 230 53 27 5.7 3.2 34000 -53.1 -63.6 235 38 19 7.5 4.1 | -53.2 -63.8 230 49 25 8.1 4.5 32000 -48.5 -55.3 230 38 19 7.6 4.2 | -48.3 -54.9 225 45 23 8.2 4.5 30000 -43.8 -46.8 225 36 19 8.9 4.9 | -43.3 -45.9 225 40 21 8.6 4.7 29000 -41.1 -42.0 230 34 18 9.0 4.9 | -40.8 -41.4 225 38 20 8.6 4.7 28000 -38.4 -37.1 230 32 16 9.0 4.9 | -38.2 -36.8 225 37 19 8.6 4.7 27000 -35.7 -32.3 230 30 15 8.6 4.7 | -35.6 -32.1 230 35 18 8.4 4.6 26000 -33.2 -27.8 230 28 14 8.3 4.6 | -33.1 -27.6 230 33 17 8.3 4.6 25000 -30.7 -23.3 230 26 13 8.3 4.6 | -30.6 -23.1 225 32 16 8.3 4.6 24000 -28.3 -18.9 230 25 13 8.3 4.6 | -28.2 -18.8 225 30 16 8.3 4.6 23000 -25.8 -14.4 230 25 13 8.4 4.6 | -25.7 -14.3 230 30 15 8.3 4.6 22000 -22.6 -8.7 235 25 13 8.4 4.6 | -22.5 -8.5 230 29 15 8.3 4.6 21000 -20.2 -4.4 235 25 13 7.5 4.1 | -20.1 -4.2 230 29 15 7.5 4.1 20000 -17.9 -0.2 240 25 13 7.6 4.2 | -17.8 -0.0 235 28 15 7.6 4.2 19500 -16.8 1.8 240 25 13 7.6 4.2 | -16.7 1.9 235 28 15 7.6 4.2 19000 -15.7 3.7 240 26 13 7.7 4.2 | -15.6 3.9 240 28 14 7.9 4.3 18500 -14.6 5.7 245 25 13 6.2 3.4 | -14.6 5.7 240 28 14 3.7 2.0 18000 -13.7 7.3 245 25 13 6.0 3.3 | -14.2 6.4 245 28 14 3.3 1.8 17500 -12.8 9.0 245 25 13 5.7 3.1 | -13.7 7.3 250 28 15 3.6 2.0 17000 -12.1 10.2 250 23 12 4.6 2.5 | -13.1 8.4 255 27 14 4.3 2.4 16500 -11.4 11.5 250 22 11 4.6 2.5 | -12.5 9.5 255 26 14 3.9 2.1 16000 -10.6 12.9 255 20 10 5.6 3.1 | -11.6 11.1 255 25 13 8.9 4.9 15500 -9.8 14.4 255 18 9 5.5 3.0 | -10.4 13.3 255 22 12 8.5 4.7 15000 -9.0 15.8 255 15 8 6.2 3.4 | -9.1 15.6 255 20 10 8.6 4.7 14500 -8.0 17.6 255 11 6 6.6 3.6 | -7.8 18.0 255 19 10 8.7 4.8 14000 -7.1 19.2 250 8 4 7.2 3.9 | -6.5 20.3 250 17 9 8.8 4.8 13500 -6.0 21.2 245 5 3 7.8 4.3 | -5.2 22.6 250 16 8 8.8 4.8 13000 -4.8 23.4 220 2 1 8.2 4.5 | -3.9 25.0 250 14 7 9.0 4.9 12500 -3.5 25.7 200 2 1 9.0 5.0 | -2.5 27.5 245 13 7 9.4 5.2 12000 -2.2 28.0 180 2 1 9.1 5.0 | -1.1 30.0 245 13 6 9.4 5.2 11500 -0.9 30.4 190 2 1 9.2 5.0 | 0.3 32.5 245 12 6 9.2 5.1 11000 0.5 32.9 200 2 1 9.1 5.0 | 1.7 35.1 240 11 6 9.2 5.0 10500 1.9 35.4 215 3 1 9.1 5.0 | 3.0 37.4 235 10 5 8.9 4.9 10250 2.5 36.5 220 3 2 9.3 5.1 | 3.7 38.7 235 10 5 9.6 5.3 10000 3.2 37.8 220 4 2 9.5 5.2 | 4.4 39.9 235 9 5 10.2 5.6 9750 3.9 39.0 220 4 2 9.3 5.1 | 5.2 41.4 235 9 5 9.6 5.3 9500 4.6 40.3 225 5 2 9.3 5.1 | 5.9 42.6 230 9 5 9.4 5.2 9250 5.3 41.5 230 5 3 9.2 5.1 | 6.6 43.9 230 9 5 9.5 5.2 9000 6.0 42.8 230 6 3 8.6 4.7 | 7.3 45.1 230 9 4 9.7 5.3 8750 6.6 43.9 230 6 3 8.9 4.9 | 8.0 46.4 230 8 4 9.8 5.4 8500 7.3 45.1 230 7 4 9.5 5.2 | 8.8 47.8 225 8 4 9.7 5.3 8250 8.0 46.4 230 7 4 9.5 5.2 | 9.5 49.1 225 8 4 10.0 5.5 8000 9.3 48.7 230 8 4 8.5 4.7 | 10.9 51.6 225 7 4 9.2 5.0 7750 10.0 50.0 230 9 5 9.8 5.4 | 11.6 52.9 220 7 4 10.4 5.7 7500 10.7 51.3 230 10 5 8.9 4.9 | 12.4 54.3 220 6 3 9.8 5.4 7250 11.3 52.3 225 10 5 6.6 3.6 | 13.1 55.6 220 6 3 8.9 4.9 7000 11.7 53.1 230 10 5 5.9 3.2 | 13.7 56.7 220 6 3 9.8 5.4 6750 12.2 54.0 225 11 6 6.2 3.4 | 14.5 58.1 215 6 3 11.0 6.0 6500 12.6 54.7 225 11 6 6.9 3.8 | 15.3 59.5 215 5 3 10.5 5.8 6250 13.2 55.8 225 11 6 7.9 4.3 | 16.1 61.0 210 5 3 10.8 5.9 6000 13.8 56.8 225 11 6 8.0 4.4 | 16.9 62.4 210 5 2 9.6 5.3 5750 14.5 58.1 225 10 5 12.3 6.7 | 17.7 63.9 210 4 2 14.5 7.9 5500 15.9 60.6 225 8 4 29.4 16.1 | 20.0 68.0 205 3 2 58.8 32.3 04/12/2026 at 1500 MDT | 04/12/2026 at 1800 MDT | CAPE... +14.1 LI... +0.2 | CAPE... +26.5 LI... 0.0 CINH... -0.9 K Index... +9.7 | CINH... -5.1 K Index... +12.5 | 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 -58.6 -73.5 230 44 23 1.6 0.9 | -59.7 -75.5 225 45 23 1.3 0.7 45000 -56.2 -69.2 235 41 21 -0.0 -0.0 | -57.7 -71.9 245 65 33 0.1 0.1 40000 -59.7 -75.5 235 58 30 -2.3 -1.3 | -60.8 -77.4 250 73 37 -2.1 -1.1 38000 -59.1 -74.4 235 62 32 4.5 2.5 | -59.6 -75.3 250 73 38 6.4 3.5 36000 -56.1 -69.0 230 61 31 4.5 2.5 | -55.2 -67.4 250 70 36 6.4 3.5 34000 -52.8 -63.0 225 60 31 7.9 4.4 | -51.4 -60.5 245 65 34 6.2 3.4 32000 -48.0 -54.4 230 57 30 8.1 4.4 | -47.7 -53.9 245 57 29 6.2 3.4 30000 -43.2 -45.8 235 55 28 8.1 4.4 | -43.8 -46.8 240 50 26 7.5 4.1 29000 -40.8 -41.4 235 53 27 8.1 4.4 | -41.6 -42.9 245 50 26 7.5 4.1 28000 -38.4 -37.1 235 51 26 8.1 4.4 | -39.4 -38.9 245 49 25 7.5 4.1 27000 -36.0 -32.8 235 49 25 7.5 4.1 | -37.1 -34.8 245 48 25 7.4 4.1 26000 -33.9 -29.0 240 46 24 6.9 3.8 | -34.9 -30.8 245 46 24 7.3 4.0 25000 -31.8 -25.2 240 42 22 6.9 3.8 | -32.7 -26.9 240 43 22 7.4 4.0 24000 -29.8 -21.6 245 39 20 6.9 3.8 | -30.6 -23.1 235 41 21 7.5 4.1 23000 -27.9 -18.2 245 36 18 6.5 3.5 | -28.2 -18.8 230 36 18 7.9 4.4 22000 -25.5 -13.9 250 31 16 6.5 3.6 | -25.3 -13.5 220 29 15 8.0 4.4 21000 -23.4 -10.1 250 28 14 8.5 4.7 | -22.9 -9.2 215 24 13 8.4 4.6 20000 -20.9 -5.6 250 26 14 8.3 4.6 | -20.4 -4.7 220 21 11 8.4 4.6 19500 -19.7 -3.5 250 25 13 8.3 4.6 | -19.2 -2.6 225 19 10 8.4 4.6 19000 -18.5 -1.3 250 25 13 8.3 4.5 | -18.0 -0.4 225 17 9 8.3 4.6 18500 -17.2 1.0 250 24 12 9.2 5.1 | -16.7 1.9 230 16 8 9.1 5.0 18000 -15.8 3.6 250 23 12 9.3 5.1 | -15.3 4.5 235 16 8 9.2 5.0 17500 -14.4 6.1 250 22 12 9.3 5.1 | -13.9 7.0 235 16 8 9.4 5.1 17000 -13.0 8.6 250 22 11 9.3 5.1 | -12.5 9.5 240 16 8 9.7 5.3 16500 -11.6 11.1 250 21 11 9.3 5.1 | -11.0 12.2 240 16 8 9.7 5.3 16000 -10.2 13.6 245 21 11 9.8 5.4 | -9.6 14.7 240 16 8 9.8 5.4 15500 -8.7 16.3 245 20 10 9.8 5.4 | -8.1 17.4 245 16 8 9.7 5.3 15000 -7.3 18.9 245 19 10 9.5 5.2 | -6.7 19.9 245 17 9 9.7 5.3 14500 -5.9 21.4 245 19 10 9.5 5.2 | -5.2 22.6 250 17 9 9.7 5.3 14000 -4.5 23.9 245 19 10 9.6 5.2 | -3.8 25.2 250 17 9 9.6 5.3 13500 -3.0 26.6 245 19 10 9.7 5.3 | -2.3 27.9 250 18 9 9.6 5.3 13000 -1.6 29.1 245 18 9 9.7 5.3 | -0.9 30.4 250 18 9 9.6 5.3 12500 -0.1 31.8 245 18 9 9.7 5.3 | 0.5 32.9 255 18 9 9.7 5.3 12000 1.3 34.3 245 18 9 9.7 5.3 | 2.0 35.6 255 19 10 9.7 5.3 11500 2.8 37.0 245 17 9 9.5 5.2 | 3.4 38.1 255 19 10 9.6 5.2 11000 4.2 39.6 245 17 9 9.5 5.2 | 4.9 40.8 255 20 10 9.6 5.3 10500 5.7 42.3 245 17 9 9.9 5.4 | 6.3 43.3 260 21 11 9.8 5.4 10250 6.4 43.5 245 17 9 9.8 5.4 | 7.0 44.6 260 21 11 9.6 5.3 10000 7.1 44.8 240 17 9 9.8 5.4 | 7.8 46.0 260 21 11 9.5 5.2 9750 7.8 46.0 240 16 8 9.8 5.4 | 8.5 47.3 260 21 11 9.7 5.3 9500 8.6 47.5 240 16 8 9.8 5.4 | 9.2 48.6 260 22 11 9.9 5.4 9250 9.3 48.7 240 16 8 9.7 5.3 | 9.9 49.8 260 22 11 9.6 5.3 9000 10.0 50.0 240 16 8 9.3 5.1 | 10.6 51.1 260 22 11 9.0 4.9 8750 10.7 51.3 240 15 8 9.3 5.1 | 11.3 52.3 260 23 12 9.2 5.0 8500 11.4 52.5 240 15 8 9.6 5.2 | 12.0 53.6 260 23 12 9.5 5.2 8250 12.1 53.8 240 15 8 9.2 5.1 | 12.7 54.9 260 23 12 9.2 5.1 8000 13.6 56.5 240 14 7 10.5 5.8 | 14.2 57.6 265 23 12 10.2 5.6 7750 14.4 57.9 240 14 7 9.7 5.3 | 14.9 58.8 265 23 12 9.5 5.2 7500 15.1 59.2 240 13 7 9.9 5.5 | 15.6 60.1 265 23 12 9.7 5.3 7250 15.9 60.6 240 13 7 9.7 5.3 | 16.4 61.5 265 23 12 9.6 5.2 7000 16.6 61.9 240 12 6 10.0 5.5 | 17.1 62.8 265 23 12 10.0 5.5 6750 17.4 63.3 240 12 6 10.4 5.7 | 17.9 64.2 265 22 11 10.3 5.7 6500 18.1 64.6 235 11 6 10.5 5.8 | 18.6 65.5 265 21 11 10.2 5.6 6250 18.9 66.0 235 11 6 10.5 5.8 | 19.4 66.9 265 20 11 9.9 5.4 6000 19.8 67.6 235 10 5 14.8 8.1 | 20.1 68.2 265 19 10 10.8 5.9 5750 21.2 70.2 235 8 4 22.5 12.3 | 21.0 69.8 270 16 8 12.8 7.0 5500 22.6 72.7 235 6 3 8.6 4.7 | 21.8 71.2 270 12 6 9.1 5.0 ________________________________________________________________________________ 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  338 UXUS43 KDLH 121200 FZLINL INL 1200 RADAT 59109=  449 UXUS97 KSLC 121229 SRGSLC Soaring Forecast National Weather Service Salt Lake City, Utah 629 AM MDT Sunday, April 12, 2026 This forecast is for Sunday, April 12, 2026: If the trigger temperature of 58.5 F/14.7 C is reached...then Thermal Soaring Index....................... Fair Maximum rate of lift........................ 776 ft/min (3.9 m/s) Maximum height of thermals.................. 15932 ft MSL (11054 ft AGL) Forecast maximum temperature................... 67.0 F/19.9 C Time of trigger temperature.................... 0945 MDT Time of overdevelopment........................ 1500 MDT Middle/high clouds during soaring window....... Broken/overcast thin middle Surface winds during soaring window............ Between 20 mph and 30 mph Height of the -3 thermal index................. 11393 ft MSL (6515 ft AGL) Thermal soaring outlook for Monday 04/13....... Excellent Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:52:59 / 20:04:03 MDT Total possible sunshine........... 13 hr 11 min 5 sec (791 min 5 sec) Altitude of sun at 13:28:31 MDT... 57.50 degrees Upper air data from numerical model forecast valid on 04/12/2026 at 0600 MDT Freezing level.................. 10034 ft MSL (5156 ft AGL) Convective condensation level... 15420 ft MSL (10542 ft AGL) Lifted condensation level....... 15684 ft MSL (10806 ft AGL) Lifted index.................... -0.3 K index......................... +10.7 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 -37.0 -34.6 215 55 28 7.0 3.8 27.5 81.6 6.3 M M 24000 -32.8 -27.0 215 47 24 7.0 3.8 25.5 77.9 4.8 M M 22000 -28.4 -19.1 215 43 22 7.5 4.1 23.7 74.7 3.4 M M 20000 -23.8 -10.8 215 39 20 7.9 4.3 22.3 72.1 2.3 M M 18000 -18.5 -1.3 215 36 19 7.9 4.4 20.9 69.6 1.1 M M 16000 -13.8 7.2 215 34 17 7.8 4.3 19.6 67.4 0.0 M M 14000 -9.2 15.4 210 30 15 7.5 4.1 18.2 64.8 -1.3 781 4.0 12000 -4.7 23.5 210 30 15 7.9 4.3 16.9 62.5 -2.6 584 3.0 10000 -0.0 32.0 205 34 18 8.1 4.4 15.8 60.4 -3.9 385 2.0 9000 2.4 36.3 200 35 18 8.3 4.6 15.2 59.4 -4.5 285 1.4 8000 4.9 40.8 195 33 17 8.7 4.8 14.9 58.8 -4.8 179 0.9 7000 7.4 45.3 190 29 15 7.8 4.3 14.5 58.1 -5.3 74 0.4 6000 9.7 49.5 185 23 12 4.3 2.4 13.8 56.9 -6.0 M M 5000 8.7 47.7 150 10 5 6.6 3.6 9.3 48.7 -10.7 M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 04/12/2026 at 0900 MDT | 04/12/2026 at 1200 MDT | CAPE... 0.0 LI... +0.9 | CAPE... +185.2 LI... -1.7 CINH... 0.0 K Index... +11.1 | CINH... -5.6 K Index... +21.3 | 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 -38.9 -38.0 215 59 30 7.2 3.9 | -39.9 -39.8 220 61 31 7.4 4.1 24000 -34.6 -30.3 210 53 27 7.2 4.0 | -35.5 -31.9 215 56 29 7.4 4.1 22000 -29.9 -21.8 210 48 25 8.3 4.5 | -31.1 -24.0 210 52 27 7.4 4.1 20000 -25.1 -13.2 210 43 22 7.6 4.2 | -26.6 -15.9 210 49 25 7.8 4.3 18000 -20.0 -4.0 210 39 20 7.6 4.2 | -21.3 -6.3 205 44 22 8.7 4.8 16000 -15.2 4.6 210 36 18 8.2 4.5 | -16.2 2.8 205 44 23 8.5 4.7 14000 -10.2 13.6 215 35 18 8.3 4.5 | -11.2 11.8 205 42 22 8.4 4.6 12000 -5.7 21.7 215 35 18 7.5 4.1 | -6.2 20.8 205 40 21 8.6 4.7 10000 -1.0 30.2 210 32 16 8.3 4.6 | -1.0 30.2 205 39 20 8.8 4.8 9000 1.5 34.7 210 32 16 9.0 5.0 | 1.7 35.1 200 37 19 9.5 5.2 8000 4.1 39.4 205 32 16 8.7 4.8 | 4.5 40.1 200 34 18 9.4 5.1 7000 6.6 43.9 200 29 15 7.6 4.2 | 7.4 45.3 195 30 16 9.4 5.1 6000 8.9 48.0 190 23 12 6.0 3.3 | 10.3 50.5 195 26 14 9.6 5.3 5000 11.2 52.2 170 11 6 3.2 1.7 | 14.1 57.4 195 21 11 22.4 12.3 04/12/2026 at 1500 MDT | 04/12/2026 at 1800 MDT | CAPE... +217.7 LI... -1.7 | CAPE... +79.1 LI... -0.7 CINH... -1.4 K Index... +24.1 | CINH... -62.3 K Index... +24.5 | 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 -39.8 -39.6 215 59 31 7.2 3.9 | -40.0 -40.0 220 61 31 7.1 3.9 24000 -35.5 -31.9 215 55 28 7.2 3.9 | -35.8 -32.4 210 55 28 7.1 3.9 22000 -31.3 -24.3 210 51 26 7.1 3.9 | -31.4 -24.5 205 50 26 7.6 4.2 20000 -26.8 -16.2 210 47 24 8.2 4.5 | -26.6 -15.9 205 46 23 8.8 4.8 18000 -21.3 -6.3 210 42 22 8.3 4.5 | -20.8 -5.4 200 40 21 9.0 5.0 16000 -16.3 2.7 210 40 21 8.8 4.8 | -15.5 4.1 200 38 19 8.4 4.6 14000 -11.1 12.0 210 37 19 8.8 4.8 | -10.8 12.6 205 35 18 7.9 4.4 12000 -5.7 21.7 205 35 18 9.3 5.1 | -6.3 20.7 210 30 15 7.5 4.1 10000 0.0 32.0 210 34 17 9.5 5.2 | -1.9 28.6 215 21 11 7.4 4.0 9000 2.9 37.2 210 33 17 10.0 5.5 | 0.4 32.7 225 18 9 8.1 4.5 8000 5.8 42.4 210 32 17 9.8 5.4 | 2.8 37.0 240 14 7 7.8 4.3 7000 8.8 47.8 215 30 16 9.6 5.3 | 5.3 41.5 255 12 6 8.3 4.5 6000 11.7 53.1 215 27 14 9.6 5.3 | 7.9 46.2 275 10 5 8.5 4.6 5000 15.3 59.5 215 21 11 17.1 9.4 | 11.1 52.0 280 8 4 13.4 7.4 ________________________________________________________________________________ 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  355 UXUS46 KSGX 121201 COR FZLNKX NKX 1200 RADAT 16104=  396 UXUS46 KSEW 121201 COR FZLUIL UIL 1200 RADAT 99065=  606 UXUS42 KKEY 121200 FZLKEY KEY 1200 RADAT 12147=  268 UXAK48 PACD 121201 COR FZLCDB CDB 1200 RADAT 83013=  186 UXUS45 KBOI 121200 FZLBOI BOI 1200 RADAT 96077=  988 UXUS46 KPQR 121201 COR FZLSLE SLE 1200 RADAT 82070=  017 UXAK47 PANT 121201 COR FZLANN ANN 1200 RADAT 68053=  453 UXAK49 PAOM 121201 COR FZLOME OME 1200 RADAT ZERO=  165 UXAK47 PAYA 121201 COR FZLYAK YAK 1200 RADAT 96L001///032=  285 UXAK49 PAFA 121201 COR FZLFAI FAI 1200 RADAT 84L005///014=  710 UXAK48 PABE 121201 COR FZLBET BET 1200 RADAT ZERO=  692 UXUS43 KDTX 121201 COR FZLDTX DTX 1200 RADAT 91104=  569 UXAK48 PAFC 121201 COR FZLANC ANC 1200 RADAT ZERO=  502 UXHW40 PHTO 121201 COR FZLITO ITO 1200 RADAT 81144=  140 UXAK48 PADQ 121201 COR FZLADQ ADQ 1200 RADAT 61018=