FZPQ50 PGUM 051817 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 417 AM ChST Wed May 6 2026 .DISCUSSION...A high rip current risk remains for east facing reefs as the easterly trade-wind swell increases and peaks tonight. A moderate risk of lightning is possible for today near Guam and Rota. $$ GUZ001-MPZ001>003-060930- Guam-Rota-Tinian-Saipan- 417 AM ChST Wed May 6 2026 ...HIGH RISK OF RIP CURRENTS THROUGH THURSDAY AFTERNOON ALONG EAST FACING REEFS... 36 hour Surf Zone Forecast for the Marianas from 600 AM Wednesday through 600 PM Thursday .TODAY... Rip Current Risk.....High *. Surf Height North facing reefs............6 to 8 feet. East facing reefs............8 to 10 feet. South facing reefs............6 to 8 feet. West facing reefs............Around 1 foot. Swell/Period Primary swell................East at 7 to 8 feet. Primary period...............8 seconds. Water Temperature Ritidian buoy..........83 Degrees. Max Heat Index.........Around 95. Winds...............Breezy. East at 20 to 25 mph. .TONIGHT... Rip Current Risk.....High *. Surf Height North facing reefs............6 to 8 feet. East facing reefs............9 to 11 feet. South facing reefs............6 to 8 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at 8 to 9 feet. Primary period...............8 seconds. Secondary swell..............Southeast at around 2 feet. Secondary period.............8 seconds. Winds...............Breezy. East at 15 to 25 mph. .THURSDAY... Rip Current Risk.....High *. Surf Height North facing reefs............6 to 8 feet. East facing reefs............9 to 11 feet. South facing reefs............6 to 8 feet. West facing reefs............1 to 3 feet. Swell/Period Primary swell................East at 8 to 9 feet. Primary period...............8 seconds. Secondary swell..............Southeast at around 2 feet. Secondary period.............8 seconds. Winds...............Breezy. East at 15 to 25 mph. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.1 feet at 8:59 AM Wednesday Low tide 0.0 feet at 4:34 PM Wednesday High tide 2.2 feet at 12:16 AM Thursday Low tide 1.8 feet at 5:28 AM Thursday High tide 2.1 feet at 9:38 AM Thursday Low tide 0.1 feet at 5:20 PM Thursday At Rota Island... High tide 2.0 feet at 8:56 AM Wednesday Low tide 0.0 feet at 4:28 PM Wednesday High tide 2.1 feet at 12:13 AM Thursday Low tide 1.6 feet at 5:22 AM Thursday High tide 2.0 feet at 9:35 AM Thursday Low tide 0.1 feet at 5:14 PM Thursday At Tinian Island... High tide 1.6 feet at 8:57 AM Wednesday Low tide 0.0 feet at 4:11 PM Wednesday High tide 1.6 feet at 12:14 AM Thursday Low tide 0.6 feet at 5:05 AM Thursday High tide 1.5 feet at 9:36 AM Thursday Low tide 0.0 feet at 4:57 PM Thursday At Tanapag Harbor, Saipan... High tide 1.9 feet at 8:21 AM Wednesday Low tide -0.1 feet at 4:39 PM Wednesday High tide 2.1 feet at 12:57 AM Thursday Low tide 1.7 feet at 6:08 AM Thursday High tide 1.8 feet at 8:50 AM Thursday Low tide 0.0 feet at 5:26 PM Thursday * 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 caughtin a rip current, swim parallel to the beach rather than against the current. $$