Surf Forecast
Issued by NWS Tiyan, Guam

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284 FZPQ50 PGUM 191953 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 553 AM ChST Thu Jun 20 2024 .SYNOPSIS...A moderate risk of rip currents today along east facing reefs will likely become low tonight, then moderate again on Friday. $$ GUZ001-MPZ001>003-201100- Guam-Rota-Tinian-Saipan- 553 AM ChST Thu Jun 20 2024 36 hour Surf Zone Forecast for the Marianas from 600 AM Thursday through 600 PM Friday .TODAY (6 AM TO 6 PM)... Rip current risk.....Moderate *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............4 to 5 feet. South facing reefs............1 to 3 feet. West facing reefs............Around 1 foot. Swell/Period Primary swell................East at 2 to 4 feet. Primary period...............7 seconds. Water temperature Ritidian buoy..........85 Degrees. Maximum afternoon heat index...........Around 99. Coastal Winds............East at around 10 mph. .TONIGHT (6 PM TO 6 AM FRIDAY)... Rip current risk.....Low *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............3 to 4 feet. South facing reefs............1 to 3 feet. West facing reefs............Around 1 foot. Swell/Period Primary swell................East at 2 to 4 feet. Primary period...............7 seconds. Coastal Winds............East at around 10 mph. .FRIDAY (6 AM TO 6 PM)... Rip current risk.....Moderate *. Surf Height North facing reefs............1 to 3 feet. East facing reefs............4 to 5 feet. South facing reefs............1 to 3 feet. West facing reefs............Around 1 foot. Swell/Period Primary swell................East at 2 to 4 feet. Primary period...............7 seconds. Maximum afternoon heat index...........Around 99. Coastal Winds............East at around 10 mph. .OUTLOOK...Little change through the weekend. Tide information for the next 36 hours... At Apra Harbor, Guam... Low tide -0.1 feet at 12:31 PM Thursday High tide 2.4 feet at 8:03 PM Thursday Low tide 1.9 feet at 12:52 AM Friday High tide 2.5 feet at 5:42 AM Friday Low tide -0.2 feet at 1:12 PM Friday High tide 2.5 feet at 8:45 PM Friday Low tide 1.9 feet at 1:44 AM Saturday At Rota Island... Low tide -0.1 feet at 12:25 PM Thursday High tide 2.3 feet at 8:00 PM Thursday Low tide 1.8 feet at 12:46 AM Friday High tide 2.3 feet at 5:39 AM Friday Low tide -0.2 feet at 1:06 PM Friday High tide 2.4 feet at 8:42 PM Friday Low tide 1.8 feet at 1:38 AM Saturday At Tinian Island... Low tide -0.2 feet at 12:10 PM Thursday High tide 1.6 feet at 8:14 PM Thursday Low tide 1.5 feet at 11:35 PM Thursday High tide 1.8 feet at 4:30 AM Friday Low tide -0.3 feet at 12:50 PM Friday High tide 1.7 feet at 9:01 PM Friday Low tide 1.6 feet at 12:28 AM Saturday At Tanapag Harbor, Saipan... Low tide -0.3 feet at 12:36 PM Thursday High tide 2.0 feet at 8:35 PM Thursday Low tide 1.8 feet at 12:10 AM Friday High tide 2.2 feet at 5:15 AM Friday Low tide -0.4 feet at 1:20 PM Friday High tide 2.1 feet at 9:21 PM Friday Low tide 1.9 feet at 1:30 AM 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. If caught in a rip current, swim parallel to the beach rather than against the current. $$