Surf Forecast
Issued by NWS Tiyan, Guam

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864 FZPQ50 PGUM 191657 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 257 AM ChST Mon May 20 2024 ...HIGH RISK OF RIP CURRENTS ALONG EAST FACING REEFS THROUGH WEDNESDAY AFTERNOON... .SYNOPSIS...The trade swell and surf along east facing reefs have increased, and a high risk of rip currents is expected through Wednesday. A moderate risk looks to continue along north facing reefs. A moderate risk for lighting is possible on Tuesday for Guam and Rota. $$ GUZ001-MPZ001>003-200800- Guam-Rota-Tinian-Saipan- 257 AM ChST Mon May 20 2024 36 hour Surf Zone Forecast for the Marianas from 600 AM Monday through 600 PM Tuesday .TODAY THROUGH TUESDAY (6 AM TO 6 PM TUESDAY)... Rip current risk.....Moderate *. Surf Height North facing reefs............4 to 6 feet. East facing reefs............7 to 9 feet. South facing reefs............2 to 4 feet. West facing reefs............2 to 4 feet. Swell/Period Primary swell................East at 6 to 8 feet. Primary period...............9 seconds. Water temperature Satellite estimates..........83 to 85 Degrees. Maximum afternoon heat index.......Around 103. Coastal Winds......................East at 10 to 20 mph. .OUTLOOK...Surf looks to lower beginning Wednesday night as the trade swell diminishes, with the rip risk possibly decreasing along north and east facing reefs. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.4 feet at 5:08 AM Monday Low tide 0.6 feet at 11:57 AM Monday High tide 2.1 feet at 6:32 PM Monday Low tide 1.4 feet at 11:44 PM Monday High tide 2.4 feet at 5:31 AM Tuesday Low tide 0.3 feet at 12:29 PM Tuesday High tide 2.3 feet at 7:21 PM Tuesday At Rota Island... High tide 2.2 feet at 5:05 AM Monday Low tide 0.5 feet at 11:51 AM Monday High tide 2.0 feet at 6:29 PM Monday Low tide 1.3 feet at 11:38 PM Monday High tide 2.3 feet at 5:28 AM Tuesday Low tide 0.3 feet at 12:23 PM Tuesday High tide 2.1 feet at 7:18 PM Tuesday At Tinian Island... High tide 1.7 feet at 4:20 AM Monday Low tide 0.3 feet at 11:31 AM Monday High tide 1.4 feet at 6:12 PM Monday Low tide 1.0 feet at 10:50 PM Monday High tide 1.7 feet at 4:36 AM Tuesday Low tide 0.1 feet at 12:03 PM Tuesday High tide 1.5 feet at 7:11 PM Tuesday At Tanapag Harbor, Saipan... High tide 2.1 feet at 5:08 AM Monday Low tide 0.3 feet at 11:56 AM Monday High tide 1.7 feet at 6:46 PM Monday Low tide 1.2 feet at 11:17 PM Monday High tide 2.1 feet at 5:25 AM Tuesday Low tide 0.1 feet at 12:29 PM Tuesday High tide 1.8 feet at 7:39 PM Tuesday * 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. If caught in a rip current, swim parallel to the beach rather than against the current. $$