Offshore Forecast
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610
FZAK64 PAFC 220017
OFFN13


Coastal Waters Forecast
National Weather Service Anchorage Alaska
317 PM AKST Wed Feb 21 2018

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-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 8 ft.
.THU...W wind 30 kt. Seas 9 ft.
.THU NIGHT...NW wind 25 kt. Seas 8 ft.
.FRI...SW wind 25 kt. Seas 6 ft.

South of the AK Peninsula Castle Cape to Cape Sarichef-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.THU...W wind 25 kt becoming NW 15 kt in the afternoon. From the
Shumagin Islands E, W wind 25 kt. Seas 9 ft.
.THU NIGHT...SE wind 20 kt. From the Shumagin Islands E, NW wind
15 kt in the evening becoming variable 10 kt. Seas 8 ft.
.FRI...S wind 30 kt. Seas 9 ft.

Bristol Bay-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 7 ft.
.THU...W wind 30 kt. Seas 9 ft.
.THU NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 8 ft. Freezing spray and patchy freezing fog.
.FRI...E wind 25 kt. Seas 4 ft.

Port Heiden to Cape Sarichef-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 8 ft building to 13 ft after
midnight.
.THU...W wind 30 kt diminishing to 15 kt in the afternoon. Seas 13
ft.
.THU NIGHT...Variable wind 10 kt becoming SE 25 kt after midnight. E
of Port Moller, variable wind 10 kt. Seas 9 ft.
.FRI...SE wind 25 kt. Seas 7 ft.

Cape Sarichef to Nikolski Bering Side-

...GALE WARNING TONIGHT AND THURSDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 14 ft.
.THU...NW wind 20 kt becoming SE in the afternoon. Seas 12 ft.
.THU NIGHT...SE wind 35 kt. Seas 9 ft. Rain.
.FRI...SW wind 30 kt. Seas 10 ft.

Unalaska Bay-

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...W wind 15 kt in the evening increasing to 30 kt. Seas 2
ft building to 4 ft after midnight.
.THU...W wind 20 kt becoming SE 10 kt in the afternoon. Seas 3 ft.
.THU NIGHT...SE wind 25 kt. Seas 4 ft. Rain.
.FRI...SW wind 20 kt. Seas 3 ft.

Cape Sarichef to Nikolski Pacific Side-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 12 ft.
.THU...NW wind 20 kt becoming SE 15 kt in the afternoon. Seas 11 ft.
.THU NIGHT...SE wind 25 kt. Seas 9 ft. Rain.
.FRI...SW wind 30 kt. Seas 10 ft.

Nikloski to Seguam Island Bering Side-

...GALE WARNING TONIGHT AND THURSDAY NIGHT...

.TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. Seas
15 ft.
.THU...E wind 15 kt becoming SE 30 kt in the afternoon. Seas 9 ft.
.THU NIGHT...SE wind 35 kt. Seas 13 ft. Rain.
.FRI...W wind 30 kt. Seas 13 ft.

Nikolski to Seguam Island Pacific Side-

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W wind 25 kt diminishing to 15 kt after midnight. Seas
16 ft.
.THU...E wind 20 kt becoming SE 35 kt in the afternoon. Seas 11
ft.
.THU NIGHT...SE wind 35 kt. Seas 14 ft. Rain.
.FRI...W wind 25 kt. Seas 13 ft.

Seguam Island to Adak Bering Side-

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...W wind 30 kt becoming S 15 kt after midnight. Seas 13
ft.
.THU...SE wind 25 kt increasing to 35 kt in the afternoon. Seas
10 ft. Rain.
.THU NIGHT...S wind 35 kt becoming SW 25 kt after midnight. Seas
11 ft.
.FRI...W wind 30 kt. Seas 14 ft.

Seguam Island to Adak Pacific Side-

...GALE WARNING THURSDAY...

.TONIGHT...W wind 20 kt becoming SE 15 kt after midnight. Seas 15
ft.
.THU...SE wind 25 kt increasing to 35 kt in the afternoon. Seas 13
ft. Rain.
.THU NIGHT...S wind 30 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 15 ft.

Adak to Kiska-

...GALE WARNING THURSDAY...

.TONIGHT...SW wind 15 kt becoming SE 30 kt after midnight. Seas
12 ft.
.THU...SE wind 35 kt. Seas 14 ft. Rain and snow.
.THU NIGHT...SW wind 30 kt. Seas 12 ft.
.FRI...W wind 30 kt. Seas 18 ft.

Kiska to Attu-

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...S wind 20 kt becoming SE 35 kt after midnight. Seas
12 ft. Snow.
.THU...SE wind 40 kt. Seas 15 ft. Snow.
.THU NIGHT...W wind 30 kt. Seas 13 ft building to 18 ft after
midnight.
.FRI...W wind 35 kt. Seas 23 ft.

Pribilof Islands Near Shore Waters-

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt diminishing to 25 kt after midnight. Seas
17 ft. Patchy fog.
.THU...W wind 20 kt in the morning becoming variable 10 kt. Seas
12 ft. Patchy fog.
.THU NIGHT...SE wind 20 kt increasing to 30 kt after midnight. Seas
10 ft. Snow and rain.
.FRI...S wind 30 kt. Seas 13 ft.

Kuskokwim Delta and Etolin Strait-

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 10 ft. Freezing spray N of Cape
Newenham after midnight.
.THU...W wind 30 kt. Seas 10 ft. Freezing spray N of Cape
Newenham in the morning.
.THU NIGHT...NW wind 20 kt becoming SE after midnight. Seas 8 ft.
Patchy freezing fog.
.FRI...E wind 30 kt. Seas 9 ft.

North and West of Nunivak Island-

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...W wind 30 kt. Seas in ice free waters 9 ft. Freezing
spray and patchy freezing fog.
.THU...W wind 30 kt. Seas in ice free waters 10 ft. Freezing spray in
the morning. Patchy freezing fog.
.THU NIGHT...W wind 20 kt becoming SE after midnight. Seas in ice
free waters 6 ft. Freezing spray and patchy freezing fog.
.FRI...E wind 35 kt. Seas in ice free waters 10 ft.

Saint Matthew Island Waters-

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 13 ft. Freezing spray.
.THU...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft. Freezing spray.
.THU NIGHT...E of Saint Matthew Island, W wind 15 kt becoming E
25 kt after midnight. W of Saint Matthew Island, E wind 25 kt
increasing to 35 kt after midnight. Seas 10 ft. Freezing spray.
.FRI...E wind 40 kt. Seas 19 ft.

$$



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