FZPQ50 PGUM 031814 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 414 AM ChST Sun Aug 4 2024 .SYNOPSIS...There will be a moderate risk of rip currents along south and west facing reefs of the Marianas. As the southwest swell becomes more westerly, surf will increase along north facing reefs, causing the rip current risk to become moderate tonight. There will be a moderate risk of lightning through the middle of this week. $$ GUZ001-MPZ001>003-040800- Guam-Rota-Tinian-Saipan- 414 AM ChST Sun Aug 4 2024 36 hour Surf Zone Forecast for the Marianas from 600 AM Sunday through 600 PM Monday .TODAY (6 AM TO 6 PM)... Rip current risk.....Moderate *. Surf Height North facing reefs............3 to 4 feet. East facing reefs............2 to 4 feet. South facing reefs............6 to 8 feet. West facing reefs............6 to 8 feet. Swell/Period Primary swell................Southwest to west at 6 feet. Primary period...............8 seconds. Secondary swell..............East at around 2 feet. Secondary period.............9 seconds. Water temperature Ritidian buoy..........85 Degrees. Maximum afternoon heat index...........Around 98. Coastal Winds............Breezy. Southwest at 15 to 25 mph. .TONIGHT (6 PM TO 6 AM MONDAY)... Rip current risk.....Moderate *. Surf Height North facing reefs............3 to 5 feet. East facing reefs............2 to 4 feet. South facing reefs............5 to 7 feet. West facing reefs............5 to 7 feet. Swell/Period Primary swell................West at 5 to 6 feet. Primary period...............8 seconds. Secondary swell..............East at around 2 feet. Secondary period.............9 seconds. Coastal Winds............Southwest at 10 to 20 mph. .MONDAY (6 AM TO 6 PM)... Rip current risk.....Moderate *. Surf Height North facing reefs............3 to 5 feet. East facing reefs............2 to 4 feet. South facing reefs............4 to 7 feet. West facing reefs............4 to 7 feet. Swell/Period Primary swell................West at 4 to 5 feet. Primary period...............8 seconds. Secondary swell..............East at around 2 feet. Secondary period.............9 seconds. Maximum afternoon heat index...........Around 101. Coastal Winds............Southwest at 10 to 20 mph. .OUTLOOK...Surf along south and west facing reefs should gradually diminish this week as the westerly swell decreases. Tide information for the next 36 hours... At Apra Harbor, Guam... Low tide -0.1 feet at 1:53 PM Sunday High tide 2.4 feet at 9:03 PM Sunday Low tide 1.6 feet at 2:22 AM Monday High tide 2.5 feet at 7:12 AM Monday Low tide 0.0 feet at 2:30 PM Monday High tide 2.4 feet at 9:30 PM Monday At Rota Island... Low tide -0.1 feet at 1:47 PM Sunday High tide 2.3 feet at 9:00 PM Sunday Low tide 1.5 feet at 2:16 AM Monday High tide 2.3 feet at 7:09 AM Monday Low tide 0.0 feet at 2:24 PM Monday High tide 2.3 feet at 9:27 PM Monday At Tinian Island... Low tide -0.3 feet at 1:27 PM Sunday High tide 1.6 feet at 8:58 PM Sunday Low tide 1.3 feet at 1:33 AM Monday High tide 1.8 feet at 6:12 AM Monday Low tide -0.2 feet at 2:05 PM Monday High tide 1.6 feet at 9:24 PM Monday At Tanapag Harbor, Saipan... Low tide -0.3 feet at 2:03 PM Sunday High tide 2.2 feet at 9:27 PM Sunday Low tide 1.6 feet at 2:39 AM Monday High tide 2.1 feet at 7:12 AM Monday Low tide -0.2 feet at 2:41 PM Monday High tide 2.1 feet at 9:57 PM Monday * 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. $$ Simpson