Surf Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
566 FZPQ50 PGUM 150516 SRFGUM Surf Zone Forecast for the Mariana Islands National Weather Service Tiyan GU 316 PM ChST Sun Sep 15 2024 .SYNOPSIS...Hazardous surf and a high risk of rip currents are expected along south and west facing reefs of the Marianas through late Tuesday afternoon. Meanwhile, a moderate risk of rip currents is expected along north and east facing reefs for at least the next several days. There is a moderate risk of lightning through at least Tuesday. $$ GUZ001-MPZ001>003-152200- Guam-Rota-Tinian-Saipan- 316 PM ChST Sun Sep 15 2024 ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM CHST TUESDAY... ...HIGH WIND WATCH IN EFFECT THROUGH LATE MONDAY NIGHT... 36 hour Surf Zone Forecast for the Marianas from 600 PM Sunday through 600 AM Tuesday .TONIGHT (6 PM TO 6 AM MONDAY)... Rip current risk.....High *. Surf Height North facing reefs............3 to 5 feet. East facing reefs............4 to 6 feet. South facing reefs............7 to 9 feet. West facing reefs............7 to 9 feet. Swell/Period Primary swell................Southwest at 4 to 6 feet. Primary period...............10 seconds. Secondary swell..............East at around 3 feet. Secondary period.............8 seconds. Water temperature Ritidian buoy..........86 Degrees. Coastal Winds............Windy. South at 20 to 30 mph. .MONDAY (6 AM TO 6 PM)... Rip current risk.....High. Pounding surf will produce life threatening rip currents at reefs and beaches. Surf Height North facing reefs............3 to 5 feet. East facing reefs............4 to 6 feet. South facing reefs............8 to 10 feet. West facing reefs............8 to 10 feet. Swell/Period Primary swell................Southwest at 4 to 7 feet. Primary period...............10 seconds. Secondary swell..............East at around 3 feet. Secondary period.............8 seconds. Maximum afternoon heat index...........Around 98. Coastal Winds............Windy. South at 25 to 35 mph. .MONDAY NIGHT (6 PM TO 6 AM TUESDAY)... Rip current risk.....High. Pounding surf will produce life threatening rip currents at reefs and beaches. Surf Height North facing reefs............3 to 5 feet. East facing reefs............5 to 7 feet. South facing reefs............7 to 9 feet. West facing reefs............8 to 10 feet. Swell/Period Primary swell................Southwest at 4 to 7 feet. Primary period...............9 seconds. Secondary swell..............East at around 3 feet. Secondary period.............8 seconds. Coastal Winds............Windy. South at 20 to 30 mph. .OUTLOOK...Surf is expected to taper down along east, south, and west racing reefs starting Tuesday night. This may allow rip current risk to drop to moderate for south and west facing reefs. Meanwhile, a moderate risk of rip currents may remain along north and east facing reefs until at least Thursday. Tide information for the next 36 hours... At Apra Harbor, Guam... High tide 2.4 feet at 6:34 PM Sunday Low tide 1.5 feet at 11:54 PM Sunday High tide 2.4 feet at 5:03 AM Monday Low tide -0.2 feet at 12:05 PM Monday High tide 2.5 feet at 7:03 PM Monday Low tide 1.2 feet at 12:37 AM Tuesday At Rota Island... High tide 2.3 feet at 6:31 PM Sunday Low tide 1.4 feet at 11:48 PM Sunday High tide 2.2 feet at 5:00 AM Monday Low tide -0.2 feet at 11:59 AM Monday High tide 2.4 feet at 7:00 PM Monday Low tide 1.2 feet at 12:31 AM Tuesday At Tinian Island... High tide 1.5 feet at 6:17 PM Sunday Low tide 1.1 feet at 10:52 PM Sunday High tide 1.7 feet at 3:55 AM Monday Low tide -0.3 feet at 11:33 AM Monday High tide 1.6 feet at 6:40 PM Monday Low tide 1.0 feet at 11:44 PM Monday At Tanapag Harbor, Saipan... High tide 2.1 feet at 6:49 PM Sunday Low tide 1.4 feet at 11:45 PM Sunday High tide 2.1 feet at 5:00 AM Monday Low tide -0.2 feet at 12:07 PM Monday High tide 2.2 feet at 7:18 PM Monday Low tide 1.2 feet at 12:32 AM 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. $$