Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
678 FZMY50 PGUM 100654 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 454 PM ChST Fri Jan 10 2025 Marianas Waters out to 40 nautical miles PMZ150-102130- 454 PM ChST Fri Jan 10 2025 .Synopsis for Marianas Waters...Combined seas of 6 to 7 feet are expected to trickle a foot or two higher in the next few days, as a larger north swell is expected to move into the region by Sunday, coinciding with the arrival of increased trade swell. This will bring combined seas to between 8 and 10 feet, producing sea conditions hazardous to small craft. Seas will briefly ease Monday through Tuesday, followed by a stronger pulse of north swell arriving around midweek. $$ PMZ151>154-102130- MARIANAS COASTAL WATERS- 454 PM ChST Fri Jan 10 2025 .TONIGHT...East wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: East 6 ft at 9 seconds, east 3 ft at 4 seconds and northwest 3 ft at 12 seconds. .SATURDAY...East wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: Northeast 6 ft at 9 seconds, east 3 ft at 5 seconds and northwest 3 ft at 12 seconds. .SATURDAY NIGHT...East wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: East 6 ft at 7 seconds and northwest 3 ft at 11 seconds. .SUNDAY...East wind 20 to 25 kt. Seas 8 to 10 ft. Wave Detail: Northeast 7 ft at 8 seconds and north 3 ft at 10 seconds. .SUNDAY NIGHT...East wind 15 to 20 kt with gusts to 30 kt. Seas 8 to 10 ft. Wave Detail: East 8 ft at 7 seconds and northwest 3 ft at 10 seconds. .MONDAY THROUGH TUESDAY...East wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: East 8 ft at 8 seconds and northwest 3 ft at 10 seconds. .WEDNESDAY...East wind 15 to 20 kt. Seas 9 to 11 ft. Wave Detail: Northeast 9 ft at 9 seconds, east 5 ft at 7 seconds and north 4 ft at 10 seconds. $$