FZPQ50 PGUM 141841 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 441 AM ChST Wed Apr 15 2026 GUZ001-150945- Guam- 441 AM ChST Wed Apr 15 2026 ...TROPICAL STORM WARNING IN EFFECT... ...TYPHOON WATCH IN EFFECT... ...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY ALONG SOUTH, WEST, NORTH FACING REEFS... ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY ALONG SOUTH, WEST, AND NORTH FACING REEFS... The island of Guam is under a Tropical Storm Warning. Please see the latest STY Sinlaku Local Statement (WTPQ81 PGUM HLSPQ1) for more updated and detailed surf zone and hazard information. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.4 feet at 6:06 AM Wednesday Low tide 0.8 feet at 12:16 PM Wednesday High tide 2.3 feet at 6:13 PM Wednesday Low tide 0.6 feet at 12:19 AM Thursday High tide 2.4 feet at 6:30 AM Thursday Low tide 0.4 feet at 12:53 PM Thursday High tide 2.4 feet at 7:09 PM Thursday $$ MPZ001>003-150945- Rota-Tinian-Saipan- 441 AM ChST Wed Apr 15 2026 ...TYPHOON WARNING IN EFFECT... ...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY ALONG NORTH, EAST, SOUTH AND WEST FACING REEFS... ...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY ALONG NORTH, EAST, SOUTH AND WEST FACING REEFS... ...FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT... The islands of Rota, Tinian, and Saipan are under a Typhoon Warning. Please see the latest STY 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... High tide 2.2 feet at 6:03 AM Wednesday Low tide 0.7 feet at 12:10 PM Wednesday High tide 2.1 feet at 6:10 PM Wednesday Low tide 0.6 feet at 12:13 AM Thursday High tide 2.3 feet at 6:27 AM Thursday Low tide 0.4 feet at 12:47 PM Thursday High tide 2.3 feet at 7:06 PM Thursday At Tinian Island... High tide 1.8 feet at 6:04 AM Wednesday Low tide 0.3 feet at 11:53 AM Wednesday High tide 1.7 feet at 6:11 PM Wednesday Low tide 0.2 feet at 11:56 PM Wednesday High tide 1.8 feet at 6:28 AM Thursday Low tide 0.1 feet at 12:30 PM Thursday High tide 1.8 feet at 7:07 PM Thursday At Tanapag Harbor, Saipan... High tide 2.1 feet at 6:08 AM Wednesday Low tide 0.6 feet at 12:13 PM Wednesday High tide 2.0 feet at 6:23 PM Wednesday Low tide 0.5 feet at 12:13 AM Thursday High tide 2.2 feet at 6:31 AM Thursday Low tide 0.3 feet at 12:52 PM Thursday High tide 2.1 feet at 7:22 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 caught in a rip current, swim parallel to the beach rather than against the current. $$