


Offshore Forecast
Issued by NWS
Issued by NWS
409 FZAK61 PAFC 180009 OFFAER Offshore Waters Forecast National Weather Service Anchorage AK 409 PM AKDT Tue Jun 17 2025 Offshore waters forecast for the Gulf of Alaska West of 144W Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. PKZ399-181500- 409 PM AKDT Tue Jun 17 2025 .SYNOPSIS FOR THE WESTERN GULF OF ALASKA... A 1008 mb low at 54N 147W merges with a 1003 mb low at 52N 139W at 1005 mb Wed morning. This low exits along the Canadian Pacific coast at 1013 mb for Thu afternoon. Its front moves over Southeast Alaska by Thu morning. High pressure moves across the Western Gulf through Thu afternoon. $$ PKZ351-181500- Gulf of Alaska Offshore North of 57N and West of 144W- 409 PM AKDT Tue Jun 17 2025 .TONIGHT...N wind 10 to 20 kt. Seas 8 ft. .WED...NW wind 15 kt. Seas 6 ft. .WED NIGHT...W wind 15 kt. Seas 5 ft. .THU...W wind up to 15 kt. Seas 3 ft. .THU NIGHT...W wind 20 kt. Seas 4 ft. .FRI THROUGH SUN...SW wind 20 kt. Seas 6 ft. $$ PKZ352-181500- Gulf of Alaska Offshore South of 57N North of 55N and West of 144W- 409 PM AKDT Tue Jun 17 2025 .TONIGHT...N wind 10 to 20 kt. Seas 5 to 8 ft. .WED...NW wind 10 to 20 kt. Seas 6 ft. .WED NIGHT...NW wind 15 kt. Seas 6 ft. .THU...W wind up to 15 kt. Seas 4 ft. .THU NIGHT...W wind up to 15 kt. Seas 4 ft. .FRI THROUGH SUN...W wind 10 to 20 kt. Seas 3 to 6 ft. $$