Coastal Waters Forecast
Issued by NWS
Issued by NWS
658 FZAK51 PAFC 181402 AAA CWFAER Coastal Waters Forecast...UPDATED National Weather Service Anchorage AK 602 AM AKDT Fri Sep 18 2026 Coastal waters forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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. PKZ197-190315- 602 AM AKDT Fri Sep 18 2026 .SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+ COOK INLET... A 1003 mb low 250 nm S of Middleton Island moves to 30 nm SW of Cordova at 992 mb Fri afternoon and continues inland through Fri evening. A 978 mb low 260 nm SE of Kodiak City Sat afternoon moves to 125 nm S of Middleton Island at 979 mb Sun morning. $$ PKZ710-190315- Cape Suckling to Gravel Point out to 15 NM- 602 AM AKDT Fri Sep 18 2026 ...GALE WARNING THROUGH TONIGHT... .TODAY...E wind 20 kt increasing to 45 kt in the afternoon. Seas 7 ft building to 14 ft in the afternoon. Rain. .TONIGHT...SE wind 40 kt becoming S 25 kt after midnight. Seas 12 ft subsiding to 7 ft after midnight. Rain. .SAT...E wind 25 kt. Seas 8 ft. Rain showers. .SAT NIGHT...E wind 30 kt. Seas 10 ft. .SUN...SE wind 35 kt. Seas 12 ft. .MON...SE wind 20 kt. Seas 9 ft. .TUE...NE wind 20 kt. Seas 6 ft. $$ PKZ711-190315- Gravel Point to Cape Cleare out to 15 NM- 602 AM AKDT Fri Sep 18 2026 ...GALE WARNING THROUGH TONIGHT... .TODAY...E wind 20 kt becoming NE 35 kt in the afternoon. Seas 7 ft building to 12 ft in the afternoon. Rain. .TONIGHT...NW wind 35 kt becoming S 25 kt after midnight. Seas 11 ft subsiding to 8 ft after midnight. Rain. .SAT...E wind 25 kt. Seas 7 ft. Rain showers. .SAT NIGHT...E wind 30 kt. Seas 10 ft. .SUN...S wind 30 kt. Seas 9 ft. .MON...SE wind 15 kt. Seas 7 ft. .TUE...NE wind 15 kt. Seas 6 ft. $$ PKZ712-190315- Cape Suckling to Cape Cleare from 15 to 75 NM- 602 AM AKDT Fri Sep 18 2026 ...GALE WARNING THROUGH TONIGHT... .TODAY...NE wind 25 kt in the morning increasing to 45 kt. Seas 8 ft in the morning building to 13 ft. Rain. .TONIGHT...W of Middleton Island, NW wind 35 kt in the evening becoming S 15 kt. E of Middleton Island, S wind 35 kt in the evening becoming S 15 kt. Seas 13 ft subsiding to 8 ft after midnight. Rain showers. .SAT...SE wind 20 kt increasing to 30 kt in the afternoon. Seas 6 ft building to 10 ft in the afternoon. Rain showers. .SAT NIGHT...E wind 30 kt. Seas 11 ft. .SUN...SW wind 30 kt. Seas 11 ft. .MON...S wind 20 kt. Seas 10 ft. .TUE...NE wind 25 kt. Seas 9 ft. $$ PKZ715-190315- Cape Cleare to Gore Point out to 15 NM- 602 AM AKDT Fri Sep 18 2026 .TODAY...E wind 10 kt becoming NW 20 kt in the afternoon. Seas 4 ft. Rain. .TONIGHT...SW wind 20 kt. Seas 6 ft. .SAT...NE wind 20 kt. Seas 6 ft. Rain showers. .SAT NIGHT...NE wind 25 kt. Seas 9 ft. .SUN...NW wind 25 kt. Seas 9 ft. .MON...SE wind 15 kt. Seas 7 ft. .TUE...N wind 15 kt. Seas 5 ft. $$ PKZ716-190315- Cape Cleare to Gore Point from 15 to 75 NM- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...E wind 15 kt becoming NW in the afternoon. Seas 5 ft. Rain. .TONIGHT...SW wind 15 kt. Seas 7 ft. .SAT...E wind 15 kt increasing to 25 kt in the afternoon. Seas 7 ft. Rain showers. .SAT NIGHT...E wind 30 kt. Seas 10 ft. .SUN...W wind 25 kt. Seas 9 ft. .MON...SE wind 15 kt. Seas 8 ft. .TUE...N wind 15 kt. Seas 8 ft. $$ PKZ714-190315- Resurrection Bay- 602 AM AKDT Fri Sep 18 2026 .TODAY...Variable wind less than 10 kt becoming N 15 kt in the afternoon. Seas 3 ft. Rain. .TONIGHT...N wind 10 kt becoming S after midnight. Seas 2 ft. Rain showers. .SAT...Variable wind less than 10 kt becoming N 10 kt in the afternoon. Seas 2 ft. Rain showers. .SAT NIGHT...N wind 20 kt. Seas 4 ft. .SUN...N wind 20 kt. Seas 4 ft. .MON...S wind 15 kt. Seas 3 ft. .TUE...N wind 15 kt. Seas 3 ft. $$ PKZ724-190315- Northwest Prince William Sound- 602 AM AKDT Fri Sep 18 2026 .TODAY...NE wind 20 kt becoming NW in the afternoon. Seas 4 ft. Rain. .TONIGHT...NW wind 20 kt becoming S 15 kt after midnight. Seas 3 ft. Rain. .SAT...E wind 20 kt. Seas 4 ft. Rain showers. .SAT NIGHT...NE wind 25 kt. Seas 4 ft. .SUN...N wind 20 kt. Seas 3 ft. .MON...E wind 15 kt. Seas 3 ft. .TUE...NW wind 10 kt. Seas 2 ft. $$ PKZ725-190315- Central and Eastern Prince William Sound- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...E wind 15 kt in the morning becoming N 25 kt. Seas 4 ft building to 6 ft in the afternoon. Rain. .TONIGHT...N wind 25 kt becoming S after midnight. Seas 6 ft. Rain. .SAT...SE wind 20 kt. Seas 4 ft. Rain showers. .SAT NIGHT...E wind 25 kt. Seas 6 ft. .SUN...E wind 20 kt. Seas 4 ft. .MON...SE wind 20 kt. Seas 3 ft. .TUE...N wind 15 kt. Seas 2 ft. $$ PKZ726-190315- Southwest Prince William Sound- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...E wind 15 kt in the morning becoming N 25 kt. Seas 4 ft. Rain. .TONIGHT...NW wind 25 kt becoming S 20 kt after midnight. Seas 4 ft. Rain. .SAT...E wind 15 kt. Seas 3 ft. Rain showers. .SAT NIGHT...NE wind 25 kt. Seas 4 ft. .SUN...NW wind 20 kt. Seas 3 ft. .MON...SE wind 15 kt. Seas 3 ft. .TUE...N wind 15 kt. Seas 3 ft. $$ PKZ720-190315- Port of Valdez- 602 AM AKDT Fri Sep 18 2026 .TODAY...Variable wind less than 10 kt becoming NE 10 kt in the afternoon. Gusts to 20 kt near Valdez by late afternoon. Seas 2 ft. Rain. .TONIGHT...E wind 10 kt in the evening becoming variable less than 10 kt. Gusts to 20 kt near Valdez in the evening. Seas 2 ft. Rain. .SAT...Variable wind less than 10 kt. Seas 2 ft. Rain showers. .SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft. .SUN...NE wind 10 kt. Seas 2 ft. .MON...E wind 20 kt. Seas 3 ft. .TUE...NE wind 20 kt. Seas 4 ft. $$ PKZ721-190315- Valdez Narrows- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY THROUGH TONIGHT... .TODAY...N wind 15 kt in the morning increasing to 25 kt. Seas 3 ft. Rain. .TONIGHT...N wind 25 kt becoming S after midnight. Seas 3 ft. Rain. .SAT...S wind 10 kt early becoming N 20 kt. Seas 3 ft. Rain showers. .SAT NIGHT...N wind 25 kt. Seas 3 ft. .SUN...NE wind 25 kt. Seas 3 ft. .MON THROUGH TUE...NE wind 10 kt. Seas 2 ft. $$ PKZ722-190315- Valdez Arm- 602 AM AKDT Fri Sep 18 2026 .TODAY...NE wind 10 kt becoming N 20 kt in the afternoon. Seas 2 ft building to 4 ft in the afternoon. Rain. .TONIGHT...N wind 20 kt becoming S after midnight. Seas 4 ft. Rain. .SAT...E wind 15 kt early becoming NE. Seas 3 ft. Rain showers. .SAT NIGHT...NE wind 15 kt. Seas 3 ft. .SUN...NE wind 15 kt. Seas 3 ft. .MON...NE wind 15 kt. Seas 3 ft. .TUE...NE wind 15 kt. Seas 3 ft. $$ PKZ723-190315- Passage Canal- 602 AM AKDT Fri Sep 18 2026 .TODAY...E wind 10 kt becoming W by late afternoon. Seas 2 ft. Rain. .TONIGHT...W wind 20 kt becoming variable less than 10 kt after midnight. Gusts to 30 kt near Whittier in the evening. Seas 2 ft. Rain. .SAT...E wind 10 kt increasing to 15 kt in the afternoon. Seas 2 ft. Rain showers. .SAT NIGHT...NE wind 15 kt. Seas 2 ft. .SUN...W wind 10 kt. Seas 2 ft. .MON...NE wind 10 kt. Seas 2 ft. .TUE...W wind 10 kt. Seas 2 ft. $$ PKZ730-190315- West of Barren Islands Including Kamishak Bay- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...E wind 15 kt. Seas 3 ft. .TONIGHT...Variable wind 10 kt. Seas 2 ft. .SAT...E wind 15 kt becoming NE 25 kt in the afternoon. Seas 7 ft. Rain showers. .SAT NIGHT...N wind 25 kt. Seas 7 ft. .SUN...W wind 30 kt. Seas 8 ft. .MON THROUGH TUE...NW wind 25 kt. Seas 6 ft. $$ PKZ731-190315- Barren Islands East- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...SE wind 15 kt. Seas 3 ft. .TONIGHT...Variable wind 10 kt. Seas 4 ft. .SAT...NE wind 25 kt. Seas 7 ft. Rain showers. .SAT NIGHT...N wind 30 kt. Seas 8 ft. .SUN...NW wind 25 kt. Seas 8 ft. .MON...NW wind 20 kt. Seas 5 ft. .TUE...NW wind 25 kt. Seas 5 ft. $$ PKZ733-190315- Gore Point to Marmot Island from 15 to 80 NM- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...Variable wind 10 kt. Seas 3 ft. .TONIGHT...Variable wind 10 kt. Seas 5 ft. .SAT...E wind 25 kt. Seas 8 ft. Rain. .SAT NIGHT...NE wind 30 kt. Seas 10 ft. .SUN...NW wind 25 kt. Seas 10 ft. .MON...SW wind 20 kt. Seas 8 ft. .TUE...N wind 20 kt. Seas 8 ft. $$ PKZ732-190315- Marmot Island to Sitkinak out to 15 NM- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...Variable wind 10 kt. Seas 3 ft. .TONIGHT...Variable wind 10 kt. Seas 4 ft. .SAT...E wind 25 kt. Seas 7 ft. Rain. .SAT NIGHT...NW wind 25 kt. Seas 9 ft. .SUN...W wind 30 kt. Seas 8 ft. .MON...NW wind 25 kt. Seas 7 ft. .TUE...NW wind 20 kt. Seas 5 ft. $$ PKZ734-190315- Marmot Island To Sitkinak from 15 to 85 NM- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...SW wind 15 kt. Seas 4 ft. .TONIGHT...SE wind 15 kt. Seas 5 ft. .SAT...NE wind 30 kt. Seas 9 ft. Rain showers with isolated thunderstorms in the afternoon. .SAT NIGHT...NW wind 30 kt. Seas 11 ft. .SUN...W wind 30 kt. Seas 11 ft. .MON THROUGH TUE...NW wind 25 kt. Seas 9 ft. $$ PKZ736-190315- Chiniak Bay- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...SE wind 10 kt in the morning becoming variable less than 10 kt. Seas 3 ft. .TONIGHT...S wind 10 kt in the evening becoming variable less than 10 kt. Seas 3 ft. .SAT...NE wind 10 kt increasing to 25 kt in the afternoon. Seas 3 ft building to 7 ft in the afternoon. Rain. .SAT NIGHT...N wind 25 kt. Seas 7 ft. .SUN THROUGH TUE...NW wind 15 kt. Seas 3 ft. $$ PKZ737-190315- Marmot Bay- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...SE wind 10 kt in the morning becoming variable less than 10 kt. Seas 3 ft. .TONIGHT...Variable wind less than 10 kt becoming E 10 kt after midnight. Seas 3 ft. .SAT...E wind 10 kt becoming NE 25 kt in the afternoon. Seas 3 ft building to 5 ft in the afternoon. Rain showers. .SAT NIGHT...N wind 25 kt. Seas 7 ft. .SUN THROUGH TUE...NW wind 15 kt. Seas 3 ft. $$ PKZ738-190315- Shelikof Strait- 602 AM AKDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY SATURDAY... .TODAY...Variable wind 10 kt. Seas 2 ft. .TONIGHT...Variable wind 10 kt becoming NE 15 kt after midnight. Seas 3 ft. .SAT...NE wind 25 kt. Seas 6 ft. .SAT NIGHT...NW wind 25 kt. Seas 7 ft. .SUN THROUGH MON...NW wind 25 kt. Seas 5 ft. .TUE...NW wind 20 kt. Seas 3 ft. $$ PKZ742-190315- Cook Inlet Kalgin Island to Point Bede- 602 AM AKDT Fri Sep 18 2026 .TODAY...NE wind 10 kt. Seas 2 ft. Rain. .TONIGHT...Variable wind less than 10 kt becoming SW 10 kt after midnight. Seas 1 ft. .SAT...N wind 20 kt. Seas 4 ft. Rain showers. .SAT NIGHT...N wind 20 kt. Seas 6 ft. .SUN...W wind 20 kt. Seas 4 ft. .MON...SW wind 10 kt. Seas 2 ft. .TUE...N wind 10 kt. Seas 2 ft. $$ PKZ740-190315- Cook Inlet North Kalgin Island- 602 AM AKDT Fri Sep 18 2026 .TODAY...E wind 15 kt. Seas 3 ft. Rain. .TONIGHT...Variable wind less than 10 kt becoming S 10 kt after midnight. Seas 1 ft. .SAT...NE wind 10 kt increasing to 20 kt in the afternoon. Seas 1 ft building to 4 ft in the afternoon. .SAT NIGHT...N wind 20 kt. Seas 4 ft. .SUN...NW wind 10 kt. Seas 2 ft. .MON...SE wind 10 kt. Seas 2 ft. .TUE...N wind 10 kt. Seas 2 ft. $$ PKZ741-190315- Kachemak Bay- 602 AM AKDT Fri Sep 18 2026 .TODAY...Variable wind less than 10 kt. Seas 2 ft. .TONIGHT...Variable wind less than 10 kt. Seas 2 ft. .SAT...NE wind 10 kt. Seas 2 ft. Rain showers. .SAT NIGHT...N wind 15 kt. Seas 2 ft. .SUN...W wind 15 kt. Seas 2 ft. .MON...S wind 10 kt. Seas 2 ft. .TUE...N wind 10 kt. Seas 2 ft. $$