619 SRFL50 KWAL 161108 140A1328 106110840":PP 8 #60 0.00 0.00 0.00 0.00 :HP 2 #6 -0.154 -0.154 -0.154 -0.154 -0.159 -0.164 -0.164 -0.169 -0.174 -0.179 -0.184 -0.189 -0.189 -0.194 -0.199 :TW 8 #60 23.36 23.63 23.98 24.17 :CSPZ 8 #60 57.000 57.120 57.440 57.520 :BV 8 #60 12.84 12.88 :WC 8 #60 56.47 56.72 :ST 8 #60 23.35 23.64 :WY 8 #60 1.88 2.49 :WO 8 #60 4.94 4.61 :DOM 8 #60 33.53 33.82 :BL 12.06 :PWR 5.4/0.4 39+0NN 481E  881 SRFL50 KWAL 161108 140A35C4 106110850":PP 8 #60 0.00 0.00 0.00 0.00 :HP 2 #6 -0.03 -0.03 -0.03 -0.03 -0.02 -0.02 -0.02 -0.02 -0.02 -0.02 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 -0.01 0.00 0.00 0.00 0.00 0.00 :TW 8 #60 23.47 23.49 23.62 23.70 :CSPZ 8 #60 42.72 42.76 42.75 42.73 :BV 8 #60 12.80 12.82 12.83 12.84 :BL 12.35 :PWR 5.0/0.6 42-0NN 481E  433 SRFL50 KWAL 161108 140A26B2 106110846":PP 8 #60 0.00 0.00 0.00 0.00 :HP 2 #6 -0.644 -0.619 -0.579 -0.544 -0.524 -0.494 -0.464 -0.439 -0.409 -0.374 -0.339 -0.314 -0.294 -0.269 -0.249 -0.224 -0.194 -0.164 -0.144 -0.109 -0.069 -0.029 0.010 0.050 0.095 0.145 0.200 0.260 0.305 0.355 :CSPZ 8 #60 50.660 51.590 52.070 52.100 :TW 8 #60 24.12 24.27 24.39 24.65 :BV 8 #60 12.65 12.65 12.65 12.65 :BL 12.57 :PWR 4.9/0.8 48+0NN 481E  898 SRFL50 KWAL 161109 140A65B8 106110905":PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 -0.285 -0.284 -0.287 -0.289 -0.293 -0.295 -0.296 -0.297 -0.295 -0.293 -0.296 -0.295 -0.290 -0.295 -0.294 -0.292 -0.286 -0.282 -0.280 -0.275 -0.269 -0.264 -0.265 -0.265 :TW 9 #60 23.96 23.34 23.86 23.98 :CSPZ 9 #60 44.96 43.76 44.89 44.92 :BV 9 #60 12.82 12.83 12.86 12.89 :BL 12.13 :PWR 4.7/0.5 38+0NN 481E  973 SRFL50 KWAL 161109 140A5022 106110900":PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 -0.264 -0.269 -0.274 -0.274 -0.279 -0.279 -0.284 -0.284 -0.289 -0.289 -0.294 -0.294 -0.299 -0.299 -0.299 :TW 9 #60 23.83 24.06 24.24 24.45 :CSPZ 9 #60 52.510 52.530 52.530 52.530 :BV 9 #60 12.75 12.76 :WC 9 #60 52.86 52.89 :ST 9 #60 23.34 23.56 :WY 9 #60 0.96 1.30 :WO 9 #60 5.86 6.01 :DOM 9 #60 18.38 18.69 :BL 12.33 :PWR 13.5/0.0 44+0NN 481E  667 SRFL50 KWAL 161109 140A76CE 106110910":BV 9 #60 13.09 :PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 -0.820 -0.810 -0.790 -0.775 -0.740 -0.710 -0.685 -0.655 -0.620 -0.585 -0.560 -0.540 -0.510 -0.470 -0.435 -0.405 -0.360 -0.320 -0.285 -0.245 -0.215 -0.180 -0.135 -0.090 :CPSZ 9 #60 58.040 57.970 58.190 58.250 :TW 9 #60 23.52 23.50 23.59 23.50 :BL 12.83 :PWR 12.9/0.0 44-0NN 481E  763 SRFL50 KWAL 161109 140A953C 106110920":PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 -0.07 -0.07 -0.06 -0.06 -0.06 -0.05 -0.05 -0.05 -0.04 -0.04 -0.04 -0.03 -0.03 -0.03 -0.03 -0.03 -0.03 -0.03 -0.02 -0.02 -0.02 -0.02 -0.02 -0.01 :TW 9 #60 23.83 23.87 23.94 23.97 :CSPZ 9 #60 45.37 45.42 45.42 45.42 :BV 9 #60 12.90 12.93 12.95 12.96 :BL 12.43 :PWR 5.2/0.4 39+0NN 481E  962 SRFL50 KWAL 161109 140AC540 106110935":PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 -0.358 -0.356 -0.354 -0.354 -0.354 -0.351 -0.350 -0.351 -0.352 -0.350 -0.354 -0.359 -0.363 -0.368 -0.369 -0.371 -0.369 -0.367 -0.364 -0.355 -0.347 -0.343 -0.340 -0.337 :TW 9 #60 23.88 23.93 24.03 24.26 :CSPZ 9 #60 48.07 47.99 47.76 47.38 :BV 9 #60 12.80 12.83 12.85 12.88 :BL 12.53 :PWR 5.7/0.3 43+0NN 481E  985 SRFL50 KWAL 161109 140AB3D0 106110930":PP 9 #60 0.00 0.00 0.00 0.00 :HP 3 #6 0.039 0.028 0.018 0.012 -0.001 -0.010 -0.024 -0.036 -0.047 -0.063 -0.080 -0.101 -0.121 -0.144 -0.167 :TW 9 #60 23.13 23.13 23.42 23.47 :CSPZ 9 #60 55.090 55.110 55.080 55.070 :BV 9 #60 12.77 12.80 :WC 9 #60 55.39 55.36 :ST 9 #60 23.10 23.15 :WY 9 #60 0.20 0.11 :WO 9 #60 5.90 5.92 :WT 9 #60 2.52 2.39 :BL 12.20 :PWR 4.4/0.3 33-0NN 481E  281 SRFL50 KWAL 161109 140AD636 106110941":PP 9 #60 0.00 0.00 0.00 :HP 3 #6 -0.064 -0.044 -0.029 -0.009 0.005 0.020 0.040 0.060 0.075 0.085 0.105 0.115 0.135 0.150 0.170 0.190 0.215 0.240 0.260 0.280 0.300 0.320 0.330 0.345 0.355 0.360 0.365 0.365 0.365 0.365 :TW 9 #60 24.32 24.66 24.97 :CSPZ 9 #60 26.690 26.930 27.080 :BV 9 #60 12.57 12.57 12.65 :BL 12.41 :PWR 4.8/0.0 46+0NN 481E  274 SRFL50 KWAL 161109 140B02A4 106110955":HP 3 #6 -0.496 -0.474 -0.450 -0.427 -0.404 -0.374 -0.345 -0.322 -0.291 -0.261 -0.236 -0.207 -0.181 -0.153 -0.125 -0.097 -0.061 -0.032 -0.003 0.020 0.043 0.065 0.091 0.119 0.146 0.170 0.204 0.237 0.262 0.299 :TW 9 #60 23.90 24.03 24.25 :CSPZ 9 #60 59.710 59.700 59.700 :PP 9 #60 0.00 0.00 0.00 :BV 9 #60 13.05 13.06 13.06 :BL 12.77 :PWR 4.4/0.0 43+0NN 481E  429 SRFL50 KWAL 161110 140B11D2 106111000":BV 10 #60 12.77 12.80 12.81 :HP 4 #6 0.015 0.025 0.030 0.040 0.045 0.055 0.060 0.060 0.065 0.070 0.070 0.070 0.070 0.070 0.065 0.065 0.060 0.060 0.055 0.050 0.045 0.040 0.035 0.030 0.020 0.015 0.010 0.000 -0.014 -0.029 :TW 10 #60 24.21 24.28 24.47 :CSPZ 10 #60 49.250 49.060 48.910 :PP 10 #60 0.00 0.00 0.00 :BL 12.17 :PWR 5.5/0.0 44+0NN 481E  608 SRFL50 KWAL 161119 FA8046B6 106111924`B1S@eE@eI@L\@L\BSOBSPAb@AcH@C]@Ce@Mw@NZ@B}@B?@Bn@BpKekKeg@Lr@LrF 34+0NN 311E  009 SRFL50 KWAL 161119 FA8055C0 106111934`B1S@e_@ec@L\@L^BS}BTZALfANu@CV@C[@MW@Mj@Ae@Aj@Af@AjK`DK_n@Lw@LxI 37+0NN 311E  077 SRFL50 KWAL 161119 FA80DD06 106111944`B1S@eT@eX@Kx@LFBLuBOh@wv@yX@Ld@L}@rc@tI@FJ@FJ@FM@FMJjgJmB@MG@MGI 33-0NN 311E  147 SRFL50 KWAL 161119 FA80E64E 106111954`B1S@d}@e@@MC@MCBZFBZKA_rA[]@C[@CW@Mq@Me@Az@Ar@Az@AsKneKmi@L|@L|I 34+0NN 311E  775 SRFL50 KWAL 161120 FA80E89C 106112004`B1T@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@jO~AfI 33-0NN 311E  164 FZPQ50 PGUM 161156 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 956 PM ChST Thu Apr 16 2026 .DISCUSSION... There will be a high risk of rip currents along south, west and north facing reefs for the next couple of days. Wind waves and swell produced by Typhoon Sinlaku will maintain hazardous surf along south, west and north facing reefs, along with coastal inundation of 1 to 2 feet. $$ GUZ001-170300- Guam- 956 PM ChST Thu Apr 16 2026 ...HIGH SURF WARNING IN EFFECT UNTIL 5 PM CHST FRIDAY ALONG SOUTH, WEST, AND NORTH FACCING REEFS... ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 5 PM CHST SATURDAY ALONG SOUTH, WEST, AND NORTH FACING SHORELINES ... ...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON ALONG SOUTH, WEST, AND NORTH FACING REEFS... ...HIGH SURF ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 5 PM CHST SATURDAY ALONG SOUTH, WEST, AND NORTH FACING REEFS... 36 hour Surf Zone Forecast for the Marianas from 600 PM Thursday through 600 AM Saturday .TONIGHT... Rip Current Risk.....High. Huge waves will produce deadly rip currents. Stay out of the water. Surf Height North facing reefs............12 to 17 feet. East facing reefs............5 to 7 feet. South facing reefs............12 to 17 feet. West facing reefs............12 to 17 feet. Swell/Period Primary swell................Northwest at 12 to 18 feet. Primary period...............11 seconds. Water Temperature Tanapag buoy..........80 Degrees. Winds...............Windy. Southwest at 20 to 30 mph. .FRIDAY... Rip Current Risk.....High. Huge waves will produce deadly rip currents. Stay out of the water. Surf Height North facing reefs............12 to 17 feet. East facing reefs............5 to 7 feet. South facing reefs............12 to 17 feet. West facing reefs............12 to 17 feet. Swell/Period Primary swell................Northwest at 12 to 17 feet. Primary period...............11 seconds. Max Heat Index.........Around 97. Winds...............West at around 20 mph. .FRIDAY NIGHT... Rip Current Risk.....High. Pounding surf will produce life threatening rip currents at reefs and beaches. Surf Height North facing reefs............13 to 16 feet. East facing reefs............4 to 6 feet. South facing reefs............13 to 16 feet. West facing reefs............13 to 16 feet. Swell/Period Primary swell................Northwest at 11 to 14 feet. Primary period...............11 seconds. Winds...............West at 15 to 20 mph. Tide information for the next 36 hours... At Apra Harbor, Guam... Low tide 0.8 feet at 1:05 AM Friday High tide 2.5 feet at 6:56 AM Friday Low tide 0.1 feet at 1:33 PM Friday High tide 2.5 feet at 8:04 PM Friday Low tide 1.0 feet at 1:51 AM Saturday High tide 2.5 feet at 7:24 AM Saturday Low tide -0.2 feet at 2:14 PM Saturday $$ MPZ002-003-170300- Tinian-Saipan- 956 PM ChST Thu Apr 16 2026 ...COASTAL FLOOD WARNING IN EFFECT UNTIL NOON CHST FRIDAY ALONG SOUTH, WEST, AND NORTH FACING SHORELINES... ...HIGH SURF WARNING IN EFFECT UNTIL 5 PM CHST FRIDAY ALONG SOUTH, WEST, AND NORTH FACING REEFS... ...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON ALONG SOUTH, WEST, NORTH FACING REEFS... ...TYPHOON WARNING IN EFFECT... ...COASTAL FLOOD ADVISORY IN EFFECT FROM NOON FRIDAY TO 5 PM CHST SATURDAY ALONG SOUTH, WEST, AND NORTH FACING SHORELINES... ...HIGH SURF ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 5 PM CHST SATURDAY ALONG SOUTH, NORTH AND EAST FACING REEFS... The islands of Tinian, and Saipan are under a Typhoon Warning. Please see the latest TY Sinlaku Local Statement (WTPQ81 PGUM HLSPQ1) for more updated and detailed surf zone and hazard information. Tide information for the next 36 hours... At Tinian Island... Low tide 0.3 feet at 12:42 AM Friday High tide 1.9 feet at 6:54 AM Friday Low tide 0.0 feet at 1:10 PM Friday High tide 1.9 feet at 8:02 PM Friday Low tide 0.3 feet at 1:28 AM Saturday High tide 1.9 feet at 7:22 AM Saturday Low tide -0.1 feet at 1:51 PM Saturday At Tanapag Harbor, Saipan... Low tide 0.8 feet at 1:01 AM Friday High tide 2.2 feet at 6:54 AM Friday Low tide 0.0 feet at 1:34 PM Friday High tide 2.2 feet at 8:21 PM Friday Low tide 1.0 feet at 1:51 AM Saturday High tide 2.2 feet at 7:19 AM Saturday Low tide -0.3 feet at 2:17 PM Saturday $$ MPZ001-170300- Rota- 956 PM ChST Thu Apr 16 2026 ...HIGH SURF WARNING IN EFFECT UNTIL 5 PM CHST FRIDAY ALONG SOUTH, WEST, AND NORTH FACING REEFS... ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 5 PM CHST SATURDAY ALONG SOUTH, WEST, AND NORTH FACING SHORELINES... ...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON ALONG SOUTH, WEST, AND NORTH FACING REEFS... ...TYPHOON WARNING IN EFFECT... ...HIGH SURF ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 5 PM CHST SATURDAY ALONG SOUTH, WEST, AND NORTH FACING REEFS... 36 hour Surf Zone Forecast for the Marianas from 600 PM Thursday through 600 AM Saturday The island of Rota is under a Tropical Storm Warning. Please see the latest TY Sinlaku Local Statement (WTPQ81 PGUM HLSPQ1) for more updated and detailed surf zone and hazard information. Tide information for the next 36 hours... At Rota Island... Low tide 0.8 feet at 12:59 AM Friday High tide 2.4 feet at 6:53 AM Friday Low tide 0.1 feet at 1:27 PM Friday High tide 2.4 feet at 8:01 PM Friday Low tide 1.0 feet at 1:45 AM Saturday High tide 2.4 feet at 7:21 AM Saturday Low tide -0.2 feet at 2:08 PM Saturday * Low Risk of rip currents - Strong currents can still occur near jetties and reef channels. Always have a flotation device with you in the water. Moderate Risk of rip currents - Wave conditions support stronger or more frequent rip currents. Always have a flotation device with you in the water. High Risk of rip currents - Large waves will produce strong rip currents, especially along narrow reefs and beaches. Rip currents will be life threatening. If caught in a rip current, swim parallel to the beach rather than against the current. $$