Coastal Waters Forecast
Issued by NWS
Issued by NWS
531 FZAK52 PAFC 202345 CWFALU Coastal Waters Forecast National Weather Service Anchorage Alaska 345 PM AKDT Sun Sep 20 2026 Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. 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. PKZ199-211245- 345 PM AKDT Sun Sep 20 2026 .SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA PENINSULA WATERS AND THE ALEUTIAN ISLANDS... A 1004 mb low 300 nm W of Attu Mon afternoon moves to 40 nm N of Attu at 996 mb by Tue afternoon. $$ PKZ750-211245- Sitkinak to Castle Cape out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT... .TONIGHT...W wind 30 kt. Seas 6 ft. Rain showers. .MON...NW wind 30 kt. Seas 5 ft. .MON NIGHT...NW wind 25 kt. Seas 5 ft. .TUE...NW wind 25 kt. Seas 4 ft. .TUE NIGHT...NW wind 20 kt. Seas 3 ft. .WED...SW wind 25 kt. Seas 4 ft. .THU...S wind 30 kt. Seas 12 ft. .FRI...S wind 25 kt. Seas 11 ft. $$ PKZ751-211245- Sitkinak to Castle Cape from 15 to 100 NM- 345 PM AKDT Sun Sep 20 2026 ...GALE WARNING MONDAY... .TONIGHT...W wind 30 kt. Seas 12 ft. Rain showers. .MON...NW wind 35 kt. Seas 11 ft. .MON NIGHT...NW wind 30 kt. Seas 10 ft. .TUE...NW wind 25 kt. Seas 8 ft. .TUE NIGHT...NW wind 20 kt. Seas 6 ft. .WED...SW wind 25 kt. Seas 6 ft. .THU...S wind 30 kt. Seas 15 ft. .FRI...SW wind 25 kt. Seas 16 ft. $$ PKZ752-211245- Castle Cape to Cape Tolstoi out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT... .TONIGHT...NW wind 30 kt. Seas 4 ft. .MON...NW wind 25 kt. Seas 4 ft. .MON NIGHT...NW wind 25 kt. Seas 3 ft. .TUE...NW wind 20 kt. Seas 2 ft. .TUE NIGHT...Variable wind 10 kt. Seas 1 foot. .WED...S wind 30 kt. Seas 5 ft. .THU...S wind 30 kt. Seas 11 ft. .FRI...SW wind 25 kt. Seas 8 ft. $$ PKZ753-211245- Castle Cape to Cape Tolstoi from 15 to 100 NM- 345 PM AKDT Sun Sep 20 2026 ...GALE WARNING THROUGH MONDAY... .TONIGHT...NW wind 35 kt. Seas 10 ft. Rain showers. .MON...NW wind 35 kt. Seas 10 ft. .MON NIGHT...NW wind 30 kt. Seas 9 ft. .TUE...NW wind 20 kt. Seas 7 ft. .TUE NIGHT...NW wind 15 kt. Seas 5 ft. .WED...S wind 30 kt. Seas 8 ft. .THU...S wind 30 kt. Seas 16 ft. .FRI...SW wind 25 kt. Seas 17 ft. $$ PKZ754-211245- Cape Tolstoi to Cape Sarichef out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 3 ft. .MON...NW wind 25 kt. Seas 3 ft. .MON NIGHT...NW wind 20 kt. Seas 3 ft. .TUE...NW wind 15 kt. Seas 2 ft. .TUE NIGHT...Variable wind 10 kt. Seas 2 ft. .WED...SE wind 40 kt. Seas 10 ft. .THU...S wind 40 kt. Seas 12 ft. .FRI...SW wind 35 kt. Seas 11 ft. $$ PKZ755-211245- Cape Tolstoi to Unalga Pass from 15 to 100 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT... .TONIGHT...NW wind 30 kt. Seas 7 ft. .MON...NW wind 30 kt. Seas 7 ft. .MON NIGHT...NW wind 25 kt. Seas 6 ft. .TUE...NW wind 20 kt. Seas 5 ft. .TUE NIGHT...SW wind 15 kt. Seas 3 ft. .WED...S wind 30 kt. Seas 14 ft. .THU...SW wind 30 kt. Seas 18 ft. .FRI...SW wind 35 kt. Seas 19 ft. $$ PKZ756-211245- Port Heiden to Nelson Lagoon out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT... .TONIGHT...NW wind 30 kt. Seas 11 ft. Widespread rain showers. .MON...NW wind 25 kt. Seas 10 ft. Rain showers. .MON NIGHT...NW wind 25 kt. Seas 8 ft. .TUE...NW wind 20 kt. Seas 5 ft. .TUE NIGHT...NW wind 15 kt. Seas 3 ft. .WED THROUGH THU...S wind 30 kt. Seas 4 ft. .FRI...S wind 25 kt. Seas 8 ft. $$ PKZ757-211245- Port Heiden to Nelson Lagoon from 15 to 60 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT... .TONIGHT...NW wind 30 kt. Seas 11 ft. Rain showers. .MON...NW wind 30 kt. Seas 10 ft. .MON NIGHT...NW wind 25 kt. Seas 8 ft. .TUE...NW wind 20 kt. Seas 6 ft. .TUE NIGHT...NW wind 15 kt. Seas 3 ft. .WED...SE wind 35 kt. Seas 8 ft. .THU...S wind 35 kt. Seas 13 ft. .FRI...S wind 30 kt. Seas 14 ft. $$ PKZ758-211245- Nelson Lagoon to Cape Sarichef out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 30 kt. Seas 10 ft. Rain showers. .MON...NW wind 25 kt. Seas 9 ft. Rain showers. .MON NIGHT...NW wind 20 kt. Seas 7 ft. .TUE...NW wind 15 kt. Seas 5 ft. .TUE NIGHT...SE wind 15 kt. Seas 3 ft. .WED...SE wind 40 kt. Seas 5 ft. .THU...S wind 40 kt. Seas 9 ft. .FRI...SW wind 35 kt. Seas 11 ft. $$ PKZ759-211245- Nelson Lagoon to Unalga Pass 15 to 70 nm- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 30 kt. Seas 10 ft. .MON...NW wind 25 kt. Seas 9 ft. .MON NIGHT...NW wind 20 kt. Seas 6 ft. .TUE...W wind 15 kt. Seas 5 ft. .TUE NIGHT...SE wind 20 kt. Seas 4 ft. .WED...SE wind 35 kt. Seas 12 ft. .THU THROUGH FRI...SW wind 35 kt. Seas 19 ft. $$ PKZ768-211245- Unimak Pass- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 7 ft. Rain showers. .MON...NW wind 20 kt. Seas 7 ft. .MON NIGHT...NW wind 20 kt. Seas 6 ft. .TUE...W wind 15 kt. Seas 4 ft. .TUE NIGHT...SE wind 20 kt. Seas 3 ft. .WED...SE wind 40 kt. Seas 13 ft. .THU...SW wind 35 kt. Seas 13 ft. .FRI...SW wind 30 kt. Seas 13 ft. $$ PKZ770-211245- Unalga Pass to Nikolski Bering Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 8 ft. Rain showers. .MON...NW wind 20 kt. Seas 6 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...S wind 15 kt. Seas 4 ft. .TUE NIGHT...SE wind 20 kt. Seas 3 ft. .WED...S wind 40 kt. Seas 8 ft. .THU THROUGH FRI...SW wind 45 kt. Seas 14 ft. $$ PKZ772-211245- Unalga Pass to Nikolski Bering Side from 15 to 85 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 8 ft. Rain showers. .MON...NW wind 20 kt. Seas 6 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...S wind 15 kt. Seas 5 ft. .TUE NIGHT...SE wind 20 kt. Seas 4 ft. .WED...SE wind 35 kt. Seas 16 ft. .THU THROUGH FRI...SW wind 40 kt. Seas 22 ft. $$ PKZ771-211245- Unalaska Bay- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 7 ft. Rain showers. .MON...NW wind 15 kt. Seas 5 ft subsiding to 2 ft in the afternoon. Rain showers. .MON NIGHT...NW wind 20 kt. Seas 3 ft. .TUE...S wind 10 kt. Seas 2 ft. .TUE NIGHT...SE wind 15 kt. Seas 2 ft. .WED...S wind 30 kt. Seas 5 ft. .THU THROUGH FRI...SW wind 30 kt. Seas 5 ft. $$ PKZ773-211245- Unalga Pass to Nikolski Pacific Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 4 ft. .MON...NW wind 20 kt. Seas 3 ft. .MON NIGHT...NW wind 20 kt in the evening becoming variable 10 kt. Seas 3 ft. .TUE...S wind 15 kt. Seas 2 ft. .TUE NIGHT...S wind 20 kt. Seas 3 ft. .WED...S wind 40 kt. Seas 16 ft. .THU THROUGH FRI...SW wind 40 kt. Seas 16 ft. $$ PKZ774-211245- Unalga Pass to Nikolski Pacific Side from 15 to 85 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 6 ft. .MON...NW wind 25 kt. Seas 6 ft. .MON NIGHT...NW wind 20 kt. Seas 6 ft. .TUE...SW wind 15 kt. Seas 3 ft. .TUE NIGHT...S wind 20 kt. Seas 5 ft. .WED...S wind 35 kt. Seas 17 ft. .THU THROUGH FRI...SW wind 35 kt. Seas 22 ft. $$ PKZ775-211245- Nikolski to Seguam Bering Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 8 ft. .MON...W wind 25 kt diminishing to 15 kt in the afternoon. Seas 8 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...S wind 20 kt. Seas 4 ft. .TUE NIGHT...S wind 25 kt. Seas 5 ft. .WED...S wind 40 kt. Seas 16 ft. .THU THROUGH FRI...SW wind 40 kt. Seas 20 ft. $$ PKZ776-211245- Nikolski to Seguam Bering Side from 15 to 85 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 9 ft. .MON...NW wind 20 kt. Seas 8 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...S wind 15 kt. Seas 4 ft. .TUE NIGHT...S wind 25 kt. Seas 5 ft. .WED...S wind 35 kt. Seas 17 ft. .THU...SW wind 45 kt. Seas 24 ft. .FRI...W wind 40 kt. Seas 23 ft. $$ PKZ777-211245- Nikolski to Seguam Pacfic Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 7 ft. .MON...W wind 25 kt. Seas 7 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...S wind 20 kt. Seas 4 ft. .TUE NIGHT...S wind 25 kt. Seas 6 ft. .WED...S wind 35 kt. Seas 19 ft. .THU...SW wind 40 kt. Seas 24 ft. .FRI...SW wind 35 kt. Seas 19 ft. $$ PKZ778-211245- Nikolski to Seguam Pacific Side from 15 to 75 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 7 ft. .MON...NW wind 25 kt. Seas 7 ft. .MON NIGHT...W wind 15 kt. Seas 5 ft. .TUE...SW wind 20 kt. Seas 6 ft. .TUE NIGHT...S wind 25 kt. Seas 7 ft. .WED...S wind 35 kt. Seas 18 ft. .THU THROUGH FRI...W wind 35 kt. Seas 24 ft. $$ PKZ780-211245- Seguam to Adak Bering Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 6 ft. .MON...W wind 20 kt. Seas 6 ft. .MON NIGHT...SW wind 15 kt. Seas 4 ft. Rain. .TUE AND TUE NIGHT...S wind 25 kt. Seas 4 ft. .WED THROUGH FRI...W wind 50 kt. Seas 18 ft. $$ PKZ781-211245- Seguam to Adak Bering Side from 15 to 85 NM- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 7 ft. .MON...W wind 20 kt. Seas 6 ft. .MON NIGHT...SW wind 15 kt. Seas 5 ft. Rain. .TUE AND TUE NIGHT...S wind 25 kt. Seas 6 ft. .WED THROUGH FRI...W wind 45 kt. Seas 24 ft. $$ PKZ782-211245- Seguam to Adak Pacific Side out to 15 NM- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 4 ft. .MON...W wind 15 kt. Seas 4 ft. .MON NIGHT...SW wind 15 kt. Seas 4 ft. Rain. .TUE...S wind 25 kt. Seas 4 ft. .TUE NIGHT...S wind 25 kt. Seas 10 ft. .WED THROUGH FRI...W wind 45 kt. Seas 21 ft. $$ PKZ783-211245- Seguam to Adak Pacific Side from 15 to 75 NM- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 6 ft. .MON...W wind 15 kt. Seas 5 ft. .MON NIGHT...SW wind 20 kt. Seas 5 ft. Rain. .TUE...SW wind 25 kt. Seas 7 ft. .TUE NIGHT...S wind 30 kt. Seas 11 ft. .WED THROUGH FRI...W wind 40 kt. Seas 24 ft. $$ PKZ784-211245- Adak to Kiska Bering Side- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...W wind 15 kt. Seas 5 ft. .MON...SW wind 15 kt. Seas 5 ft. .MON NIGHT...S wind 20 kt. Seas 4 ft. Rain. .TUE...S wind 25 kt. Seas 6 ft. .TUE NIGHT...S wind 20 kt. Seas 6 ft. .WED THROUGH FRI...W wind 45 kt. Seas 25 ft. $$ PKZ785-211245- Adak to Kiska Pacific Side- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY MONDAY NIGHT... .TONIGHT...W wind 15 kt. Seas 4 ft. .MON...SW wind 15 kt. Seas 4 ft. Rain showers. .MON NIGHT...S wind 25 kt. Seas 5 ft. Rain. .TUE...S wind 30 kt. Seas 11 ft. .TUE NIGHT...SW wind 25 kt. Seas 11 ft. .WED THROUGH FRI...W wind 40 kt. Seas 24 ft. $$ PKZ786-211245- Kiska to Attu Bering Side- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...SW wind 15 kt. Seas 5 ft. .MON...SW wind 15 kt. Seas 4 ft. .MON NIGHT...SE wind 20 kt. Seas 5 ft. .TUE...E wind 20 kt. Seas 7 ft. .TUE NIGHT...W wind 15 kt. Seas 7 ft. .WED THROUGH THU...W wind 45 kt. Seas 20 ft. .FRI...W wind 40 kt. Seas 18 ft. $$ PKZ787-211245- Kiska to Attu Pacific Side- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT... .TONIGHT...SW wind 15 kt. Seas 5 ft. .MON...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 5 ft. Rain. .MON NIGHT...SE wind 30 kt. Seas 10 ft. Rain. .TUE...SW wind 20 kt. Seas 11 ft. .TUE NIGHT...W wind 15 kt. Seas 8 ft. .WED THROUGH FRI...W wind 40 kt. Seas 21 ft. $$ PKZ766-211245- Pribilof Islands Nearshore Waters- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 6 ft. .MON...NW wind 15 kt. Seas 5 ft. .MON NIGHT...Variable wind 10 kt. Seas 4 ft. .TUE...S wind 15 kt. Seas 4 ft. .TUE NIGHT...SE wind 25 kt. Seas 5 ft. .WED...SE wind 40 kt. Seas 16 ft. .THU...S wind 40 kt. Seas 22 ft. .FRI...SW wind 35 kt. Seas 19 ft. $$ PKZ760-211245- Bristol Bay greater than 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 30 kt. Seas 9 ft. .MON...NW wind 30 kt. Seas 9 ft. .MON NIGHT...NW wind 20 kt. Seas 7 ft. .TUE AND TUE NIGHT...NW wind 15 kt. Seas 4 ft. .WED...SE wind 35 kt. Seas 6 ft. .THU...SE wind 40 kt. Seas 11 ft. .FRI...S wind 30 kt. Seas 10 ft. $$ PKZ761-211245- Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 25 kt. Seas 8 ft. .MON...NW wind 25 kt. Seas 8 ft. .MON NIGHT...NW wind 20 kt. Seas 6 ft. .TUE AND TUE NIGHT...NW wind 15 kt. Seas 4 ft. .WED...E wind 30 kt. Seas 3 ft. .THU...SE wind 30 kt. Seas 6 ft. .FRI...S wind 25 kt. Seas 5 ft. $$ PKZ762-211245- Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...N wind 30 kt. Seas 4 ft. .MON...NW wind 25 kt. Seas 4 ft. .MON NIGHT...NW wind 20 kt. Seas 3 ft. .TUE...NW wind 15 kt. Seas 2 ft. .TUE NIGHT...NW wind 10 kt. Seas 1 foot. .WED...E wind 40 kt. Seas 4 ft. .THU...SE wind 40 kt. Seas 8 ft. .FRI...S wind 30 kt. Seas 7 ft. $$ PKZ763-211245- Kuskokwim Delta and Etolin Strait out to 15 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 30 kt. Seas 5 ft. .MON...NW wind 25 kt. Seas 4 ft. .MON NIGHT...NW wind 20 kt. Seas 4 ft. .TUE...NW wind 15 kt. Seas 2 ft. .TUE NIGHT...SW wind 10 kt. Seas 2 ft. .WED THROUGH THU...SE wind 45 kt. Seas 8 ft. .FRI...S wind 35 kt. Seas 7 ft. $$ PKZ764-211245- Kuskokwim Delta from 15 to 80 NM- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY THROUGH MONDAY... .TONIGHT...NW wind 30 kt. Seas 10 ft. .MON...NW wind 25 kt. Seas 8 ft. .MON NIGHT...NW wind 20 kt. Seas 6 ft. .TUE...NW wind 15 kt. Seas 4 ft. .TUE NIGHT...SW wind 10 kt. Seas 3 ft. .WED THROUGH THU...S wind 45 kt. Seas 13 ft. .FRI...S wind 30 kt. Seas 14 ft. $$ PKZ765-211245- North and West of Nunivak Island- 345 PM AKDT Sun Sep 20 2026 ...SMALL CRAFT ADVISORY TONIGHT... .TONIGHT...NW wind 25 kt. Seas 7 ft. .MON...NW wind 15 kt. Seas 5 ft. .MON NIGHT...NW wind 15 kt. Seas 4 ft. .TUE...Variable wind 10 kt. Seas 3 ft. .TUE NIGHT...Variable wind 10 kt. Seas 3 ft. .WED THROUGH THU...SE wind 40 kt. Seas 13 ft. .FRI...SE wind 30 kt. Seas 13 ft. $$ PKZ767-211245- Saint Matthew Island Waters- 345 PM AKDT Sun Sep 20 2026 .TONIGHT...NW wind 20 kt. Seas 5 ft. .MON...NW wind 20 kt. Seas 5 ft. .MON NIGHT...W wind 15 kt. Seas 4 ft. .TUE...SW wind 15 kt. Seas 3 ft. .TUE NIGHT...S wind 20 kt. Seas 4 ft. .WED THROUGH THU...E wind 40 kt. Seas 19 ft. .FRI...NE wind 30 kt. Seas 17 ft. $$