Offshore Forecast
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OFFN13


Coastal Waters Forecast
National Weather Service Anchorage Alaska
307 PM AKDT Tue Oct 17 2017

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.

South of the AK Peninsula Sitkinak to Castle Cape-

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NE wind 40 kt becoming NW 30 kt after midnight. Seas 18
ft.
.WED...NW wind 35 kt. Seas 17 ft.
.WED NIGHT...NW wind 30 kt. Seas 14 ft.
.THU...NW wind 30 kt. Seas 12 ft.

South of the AK Peninsula Castle Cape to Cape Sarichef-

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 20 ft.
.WED...NW wind 30 kt. Seas 15 ft.
.WED NIGHT...NW wind 30 kt. Seas 12 ft.
.THU...W wind 30 kt. Seas 11 ft.

Bristol Bay-

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.WED NIGHT...NW wind 20 kt. Seas 7 ft.
.THU...NW wind 25 kt. Seas 7 ft.

Port Heiden to Cape Sarichef-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 9 ft.
.WED...NW wind 25 kt. Seas 8 ft.
.WED NIGHT...NW wind 30 kt. Seas 11 ft.
.THU...NW wind 25 kt. Seas 11 ft.

Cape Sarichef to Nikolski Bering Side-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.WED...NW wind 25 kt. Seas 10 ft.
.WED NIGHT...NW wind 25 kt. Seas 10 ft.
.THU...NE wind 15 kt. Seas 7 ft.

Unalaska Bay-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. Gusts
to 45 kt in the evening.  Seas 10 ft.
.WED...NW wind 25 kt. Seas 4 ft.
.WED NIGHT...W wind 25 kt becoming NW 15 kt after midnight. Seas
5 ft.
.THU...NE wind 10 kt. Seas 2 ft.

Cape Sarichef to Nikolski Pacific Side-

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. Seas
21 ft subsiding to 15 ft after midnight.
.WED...NW wind 25 kt. Seas 12 ft.
.WED NIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas 10
ft.
.THU...S wind 20 kt. Seas 6 ft.

Nikloski to Seguam Island Bering Side-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.WED...W wind 25 kt. Seas 10 ft.
.WED NIGHT...W wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.THU...E wind 30 kt. Seas 7 ft.

Nikolski to Seguam Island Pacific Side-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 18 ft.
.WED...W wind 25 kt. Seas 11 ft.
.WED NIGHT...W wind 20 kt becoming variable less than 10 kt after
midnight. Seas 9 ft.
.THU...SE wind 30 kt. Seas 8 ft.

Seguam Island to Adak Bering Side-

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 10 ft.
.WED...W wind 25 kt decreasing to 15 kt in the afternoon. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt becoming SE 25 kt after midnight.
Seas 6 ft.
.THU...E wind 35 kt. Seas 9 ft.

Seguam Island to Adak Pacific Side-

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 14 ft.
.WED...W wind 25 kt decreasing to 10 kt in the afternoon. Seas 10
ft.
.WED NIGHT...S wind 20 kt becoming SE 35 kt after midnight. Seas
7 ft.
.THU...S wind 35 kt. Seas 12 ft.

Adak to Kiska-

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 8 ft.
.WED NIGHT...SE wind 20 kt becoming E 40 kt after midnight. Seas 7
ft building to 13 ft after midnight. Rain.
.THU...S wind 35 kt. Seas 14 ft.

Kiska to Attu-

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 25 kt decreasing to 15 kt in the evening. Seas 10
ft.
.WED...S wind 15 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.WED NIGHT...SE wind 40 kt. Seas 15 ft. Widespread rain showers.
.THU...NE wind 40 kt. Seas 19 ft.

Pribilof Islands Near Shore Waters-

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...NW wind 20 kt. Seas 7 ft.
.WED...W wind 25 kt. Seas 8 ft.
.WED NIGHT...NW wind 20 kt. Seas 7 ft.
.THU...N wind 15 kt. Seas 6 ft.

Kuskokwim Delta and Etolin Strait-

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 6 ft.
.WED...NW wind 20 kt increasing to 25 kt in the afternoon. Seas 6
ft.
.WED NIGHT...NW wind 25 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 8 ft.

North and West of Nunivak Island-

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 5 ft.
.WED...NW wind 20 kt increasing to 25 kt in the afternoon. Seas 5
ft.
.WED NIGHT...NW wind 25 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 7 ft.

Saint Matthew Island Waters-

.TONIGHT...NW wind 15 kt. Seas 7 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.WED NIGHT...NW wind 20 kt. Seas 7 ft.
.THU...N wind 20 kt. Seas 6 ft.

$$



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