Alert archive / Alaska / Storm Warnings in 2020

Storm Warning 124, NWS Anchorage, AK

October 27, 2020

NWS Anchorage, AK issued this storm warning at Oct 27, 2020, 3:52 PM AKDT. It was in force for 48 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 27, 2020, 3:52 PM AKDT (23:52 UTC)
Expired
Oct 29, 2020, 3:45 PM AKDT
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

612 
FZAK52 PAFC 272352
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
352 PM AKDT Tue Oct 27 2020

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.

PKZ199-281300-
352 PM AKDT Tue Oct 27 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A front associated with a 1011 mb low over the western Bering 
moves to the eastern Bering by Wed afternoon and weakens. A 983 
mb North Pacific low approaches the western and central Aleutians 
Wed evening moving to 90nm S of Atka Island at 970 mb by Thursday
afternoon.

$$

PKZ150-281300-
South of the AK Peninsula Sitkinak to Castle Cape-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...NW wind 15 kt. Seas 6 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.WED NIGHT...NW wind 15 kt. Seas 4 ft.
.THU...SW wind 20 kt. Seas 4 ft.
.THU NIGHT...SE wind 30 kt. Seas 12 ft.
.FRI...NW wind 35 kt. Seas 17 ft.
.SAT...NW wind 25 kt. Seas 16 ft.
.SUN...NW wind 20 kt. Seas 7 ft.

$$

PKZ155-281300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...W wind 15 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.WED NIGHT...S wind 20 kt. Seas 5 ft.
.THU...SE wind 30 kt. Seas 7 ft.
.THU NIGHT...S wind 30 kt. Seas 11 ft.
.FRI...NE wind 35 kt. Seas 20 ft.
.SAT...NW wind 30 kt. Seas 15 ft.
.SUN...NE wind 20 kt. Seas 6 ft.

$$

PKZ160-281300-
Bristol Bay-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...NW wind 15 kt. Seas 3 ft.
.WED...N wind 15 kt diminishing to 10 kt in the afternoon. Seas
2 ft.
.WED NIGHT...Variable wind less than 10 kt. Seas 1 foot.
.THU...E wind 15 kt. Seas 2 ft.
.THU NIGHT...NE wind 40 kt. Seas 8 ft.
.FRI...N wind 40 kt. Seas 11 ft.
.SAT...NW wind 25 kt. Seas 6 ft.
.SUN...N wind 20 kt. Seas 5 ft.

$$

PKZ165-281300-
Port Heiden to Cape Sarichef-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...Variable wind 10 kt. Seas 3 ft.
.WED...SE wind 15 kt. Seas 2 ft.
.WED NIGHT...SE wind 15 kt. Seas 3 ft.
.THU...E wind 30 kt. Seas 6 ft.
.THU NIGHT...NE wind 45 kt. Seas 15 ft.
.FRI...NE wind 45 kt. Seas 18 ft.
.SAT...NW wind 25 kt. Seas 12 ft.
.SUN...NE wind 20 kt. Seas 7 ft.

$$

PKZ170-281300-
Cape Sarichef to Nikolski Bering Side-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...SE wind 20 kt. Seas 3 ft.
.WED...S wind 20 kt. Seas 4 ft.
.WED NIGHT...S wind 15 kt. Seas 3 ft.
.THU...E wind 35 kt. Seas 8 ft.
.THU NIGHT...NE wind 45 kt. Seas 19 ft.
.FRI...NE wind 50 kt. Seas 24 ft.
.SAT...NE wind 30 kt. Seas 14 ft.
.SUN...NE wind 25 kt. Seas 6 ft.

$$

PKZ171-281300-
Unalaska Bay-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft. Rain.
.WED NIGHT...S wind 15 kt becoming SE after midnight. Seas 2 ft.
Rain.
.THU...E wind 30 kt. Seas 4 ft.
.THU NIGHT...E wind 15 kt. Seas 2 ft.
.FRI...N wind 40 kt. Seas 19 ft.
.SAT...W wind 25 kt. Seas 10 ft.
.SUN...E wind 20 kt. Seas 5 ft.

$$

PKZ172-281300-
Cape Sarichef to Nikolski Pacific Side-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...SW wind 15 kt. Seas 6 ft.
.WED...S wind 15 kt. Seas 6 ft.
.WED NIGHT...SE wind 20 kt. Seas 6 ft.
.THU...SE wind 30 kt. Seas 9 ft.
.THU NIGHT...SE wind 25 kt. Seas 23 ft.
.FRI...NE wind 45 kt. Seas 26 ft.
.SAT...NW wind 30 kt. Seas 14 ft.
.SUN...E wind 25 kt. Seas 5 ft.

$$

PKZ173-281300-
Nikolski to Seguam Island Bering Side-
352 PM AKDT Tue Oct 27 2020

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 5 ft. Rain.
.WED...W wind 15 kt. Seas 4 ft.
.WED NIGHT...Variable wind 10 kt becoming E 25 kt after midnight.
Seas 5 ft.
.THU...E wind 40 kt. Seas 12 ft.
.THU NIGHT...NE wind 50 kt. Seas 23 ft.
.FRI...N wind 50 kt. Seas 27 ft.
.SAT...E wind 25 kt. Seas 15 ft.
.SUN...NE wind 25 kt. Seas 8 ft.

$$

PKZ174-281300-
Nikolski to Seguam Island Pacific Side-
352 PM AKDT Tue Oct 27 2020

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 7 ft. Rain.
.WED...SW wind 15 kt. Seas 7 ft.
.WED NIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft. Rain.
.THU...SE wind 40 kt. Seas 13 ft.
.THU NIGHT...E wind 30 kt. Seas 26 ft.
.FRI...N wind 50 kt. Seas 25 ft.
.SAT...E wind 30 kt. Seas 16 ft.
.SUN...E wind 25 kt. Seas 10 ft.

$$

PKZ175-281300-
Seguam Island to Adak Bering Side-
352 PM AKDT Tue Oct 27 2020

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 4 ft.
.WED...SW wind 15 kt. Seas 4 ft.
.WED NIGHT...SE wind 15 kt becoming E 45 kt after midnight. Seas
3 ft building to 8 ft after midnight. Rain.
.THU...NE wind 45 kt. Seas 18 ft.
.THU NIGHT...N wind 45 kt. Seas 24 ft.
.FRI...N wind 45 kt. Seas 26 ft.
.SAT...E wind 20 kt. Seas 14 ft.
.SUN...NE wind 25 kt. Seas 10 ft.

$$

PKZ176-281300-
Seguam Island to Adak Pacific Side-
352 PM AKDT Tue Oct 27 2020

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...W wind 20 kt in the evening becoming variable 10 kt.
Seas 7 ft.
.WED...W wind 15 kt. Seas 6 ft.
.WED NIGHT...SE wind 25 kt increasing to 45 kt after midnight.
Seas 6 ft building to 15 ft after midnight. Rain.
.THU...E wind 40 kt. Seas 23 ft.
.THU NIGHT...N wind 40 kt. Seas 24 ft.
.FRI...N wind 45 kt. Seas 21 ft.
.SAT...E wind 20 kt. Seas 13 ft.
.SUN...NE wind 20 kt. Seas 13 ft.

$$

PKZ177-281300-
Adak to Kiska-
352 PM AKDT Tue Oct 27 2020

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 7 ft.
.WED...SW wind 15 kt becoming SE in the afternoon. Seas 6 ft.
.WED NIGHT...E wind 40 kt increasing to 50 kt after midnight. Seas
9 ft building to 17 ft after midnight. Rain.
.THU...N wind 45 kt. Seas 21 ft.
.THU NIGHT...N wind 40 kt. Seas 20 ft.
.FRI...NE wind 35 kt. Seas 20 ft.
.SAT...SE wind 25 kt. Seas 13 ft.
.SUN...N wind 25 kt. Seas 16 ft.

$$

PKZ178-281300-
Kiska to Attu-
352 PM AKDT Tue Oct 27 2020

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 8 ft.
.WED...S wind 15 kt becoming E in the afternoon. Seas 7 ft.
.WED NIGHT...NE wind 35 kt increasing to 45 kt after midnight.
Bering side, seas 9 ft. Pacific side, seas 9 ft building to 16 ft
after midnight.
.THU...N wind 35 kt. Seas 14 ft.
.THU NIGHT...N wind 25 kt. Seas 14 ft.
.FRI...NE wind 25 kt. Seas 13 ft.
.SAT...SE wind 30 kt. Seas 16 ft.
.SUN...NW wind 25 kt. Seas 15 ft.

$$

PKZ179-281300-
Pribilof Islands Near Shore Waters-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...SE wind 20 kt. Seas 4 ft.
.WED...SE wind 20 kt in the morning becoming variable 10 kt. Seas
4 ft. Rain.
.WED NIGHT...Variable wind 10 kt becoming E 20 kt after midnight.
Seas 4 ft.
.THU...E wind 30 kt. Seas 8 ft.
.THU NIGHT...NE wind 45 kt. Seas 17 ft.
.FRI...N wind 40 kt. Seas 17 ft.
.SAT...N wind 20 kt. Seas 7 ft.
.SUN...NE wind 25 kt. Seas 5 ft.

$$

PKZ180-281300-
Kuskokwim Delta and Etolin Strait-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt becoming SE 10 kt in the
afternoon. Seas 2 ft.
.WED NIGHT...E wind 15 kt. Seas 2 ft.
.THU...E wind 25 kt. Seas 4 ft.
.THU NIGHT...NE wind 40 kt. Seas 9 ft.
.FRI...N wind 40 kt. Seas 11 ft.
.SAT THROUGH SUN...N wind 20 kt. Seas 5 ft.

$$

PKZ181-281300-
North and West of Nunivak Island-
352 PM AKDT Tue Oct 27 2020

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.WED...Variable wind 10 kt. Seas 2 ft.
.WED NIGHT...E wind 15 kt. Seas 3 ft.
.THU AND THU NIGHT...NE wind 25 kt. Seas 5 ft.
.FRI...N wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...N wind 20 kt. Seas 5 ft.

$$

PKZ185-281300-
Saint Matthew Island Waters-
352 PM AKDT Tue Oct 27 2020

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...Variable wind 10 kt E of Saint Matthew Island...NE 20
kt W of Saint Matthew Island. Seas 5 ft.
.WED...NE wind 20 kt. Seas 6 ft.
.WED NIGHT...NE wind 25 kt. Seas 7 ft.
.THU...NE wind 30 kt. Seas 8 ft.
.THU NIGHT...NE wind 25 kt. Seas 8 ft.
.FRI...NW wind 20 kt. Seas 7 ft.
.SAT THROUGH SUN...NE wind 25 kt. Seas 5 ft.

$$
3 follow-up statements
897 
FZAK52 PAFC 281106
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
306 AM AKDT Wed Oct 28 2020

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.

PKZ199-290015-
306 AM AKDT Wed Oct 28 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 977 mb North Pacific low approaches the western and central 
Aleutians Wed evening moving to 250 nm southwest of Unalaska at 
973 mb by Fri morning.

$$

PKZ150-290015-
South of the AK Peninsula Sitkinak to Castle Cape-
306 AM AKDT Wed Oct 28 2020

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...NW wind 15 kt. Seas 4 ft.
.THU...S wind 15 kt. Seas 4 ft.
.THU NIGHT...SE wind 30 kt. Seas 11 ft.
.FRI...SE wind 35 kt. Seas 16 ft.
.SAT...N wind 30 kt. Seas 16 ft.
.SUN...N wind 30 kt. Seas 9 ft.

$$

PKZ155-290015-
South of the AK Peninsula Castle Cape to Cape Sarichef-
306 AM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...S wind 10 kt increasing to 20 kt 
after midnight. Seas 5 ft.
.THU...SE wind 20 kt increasing to 30 kt 
in the afternoon. Seas 8 ft.
.THU NIGHT...SE wind 30 kt. Seas 12 ft.
.FRI...E wind 30 kt. Seas 21 ft.
.SAT...N wind 30 kt. Seas 16 ft.
.SUN...NE wind 25 kt. Seas 8 ft.

$$

PKZ160-290015-
Bristol Bay-
306 AM AKDT Wed Oct 28 2020

.TODAY...N wind 15 kt diminishing to 10 kt in the 
afternoon. Seas 2 ft.
.TONIGHT...Variable wind less than 10 kt. Seas 1 foot.
.THU...E wind 10 kt increasing to 15 kt in the afternoon. 
Seas 2 ft.
.THU NIGHT...NE wind 35 kt. Seas 8 ft.
.FRI...NE wind 40 kt. Seas 11 ft.
.SAT...N wind 30 kt. Seas 7 ft.
.SUN...N wind 25 kt. Seas 5 ft.

$$

PKZ165-290015-
Port Heiden to Cape Sarichef-
306 AM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SE wind 15 kt. Seas 2 ft.
.TONIGHT...SE wind 15 kt. Seas 3 ft.
.THU...E wind 20 kt increasing to 30 kt 
in the afternoon. Seas 6 ft.
.THU NIGHT...E wind 45 kt. Seas 15 ft.
.FRI...NE wind 40 kt. Seas 17 ft.
.SAT...N wind 30 kt. Seas 13 ft.
.SUN...NE wind 25 kt. Seas 7 ft.

$$

PKZ170-290015-
Cape Sarichef to Nikolski Bering Side-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TODAY...S wind 20 kt. Seas 4 ft.
.TONIGHT...S wind 15 kt. Seas 3 ft.
.THU...E wind 20 kt increasing to 35 kt in the afternoon. 
Seas 4 ft building to 9 ft in the afternoon. Rain.
.THU NIGHT...E wind 45 kt. Seas 18 ft.
.FRI...NE wind 50 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 19 ft.
.SUN...NE wind 25 kt. Seas 7 ft.

$$

PKZ171-290015-
Unalaska Bay-
306 AM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...S wind 10 kt. Seas 2 ft. Rain.
.TONIGHT...S wind 15 kt becoming SE after midnight. 
Seas 2 ft. Rain.
.THU...E wind 15 kt becoming SE 30 kt in the afternoon. 
Seas 2 ft building to 5 ft in the afternoon. Rain.
.THU NIGHT...E wind 25 kt. Seas 3 ft.
.FRI...NE wind 40 kt. Seas 17 ft.
.SAT...N wind 30 kt. Seas 13 ft.
.SUN...NE wind 15 kt. Seas 5 ft.

$$

PKZ172-290015-
Cape Sarichef to Nikolski Pacific Side-
306 AM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...S wind 15 kt. Seas 6 ft.
.TONIGHT...SE wind 20 kt. Seas 6 ft.
.THU...SE wind 20 kt increasing to 30 kt in the afternoon. 
Seas 7 ft building to 11 ft in the afternoon. Rain.
.THU NIGHT...SE wind 25 kt. Seas 24 ft.
.FRI...NE wind 40 kt. Seas 24 ft.
.SAT...NE wind 40 kt. Seas 14 ft.
.SUN...NE wind 30 kt. Seas 9 ft.

$$

PKZ173-290015-
Nikolski to Seguam Island Bering Side-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TODAY...W wind 15 kt. Seas 4 ft.
.TONIGHT...Variable wind 10 kt becoming E 25 kt 
after midnight. Seas 5 ft.
.THU...E wind increasing to 40 kt. Seas 12 ft. Rain.
.THU NIGHT...NE wind 45 kt. Seas 22 ft.
.FRI...N wind 50 kt. Seas 28 ft.
.SAT...NE wind 35 kt. Seas 20 ft.
.SUN...E wind 30 kt. Seas 9 ft.

$$

PKZ174-290015-
Nikolski to Seguam Island Pacific Side-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TODAY...SW wind 15 kt. Seas 7 ft.
.TONIGHT...Variable wind 10 kt becoming SE 30 kt 
after midnight. Seas 7 ft. Rain.
.THU...SE wind 40 kt diminishing to 30 kt in the 
afternoon. Seas 14 ft. Rain.
.THU NIGHT...E wind 30 kt. Seas 25 ft.
.FRI...N wind 50 kt. Seas 26 ft.
.SAT...NE wind 40 kt. Seas 19 ft.
.SUN...E wind 35 kt. Seas 12 ft.

$$

PKZ175-290015-
Seguam Island to Adak Bering Side-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 15 kt. Seas 4 ft.
.TONIGHT...SE wind 15 kt becoming E 45 kt after midnight. 
Seas 3 ft building to 8 ft after midnight. Rain.
.THU...E wind 45 kt. Seas 18 ft. Rain.
.THU NIGHT...N wind 45 kt. Seas 23 ft.
.FRI...N wind 45 kt. Seas 27 ft.
.SAT...NE wind 25 kt. Seas 17 ft.
.SUN...E wind 30 kt. Seas 10 ft.

$$

PKZ176-290015-
Seguam Island to Adak Pacific Side-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...W wind 15 kt. Seas 6 ft.
.TONIGHT...SE wind 25 kt increasing to 45 kt after midnight. 
Seas 6 ft building to 15 ft after midnight. Rain.
.THU...SE wind 40 kt becoming E 30 kt in the afternoon. 
Seas 15 ft building to 21 ft in the afternoon. Rain.
.THU NIGHT...N wind 35 kt. Seas 22 ft.
.FRI...N wind 45 kt. Seas 22 ft.
.SAT...NE wind 30 kt. Seas 15 ft.
.SUN...E wind 35 kt. Seas 15 ft.

$$

PKZ177-290015-
Adak to Kiska-
306 AM AKDT Wed Oct 28 2020

...STORM WARNING TONIGHT...

.TODAY...SW wind 15 kt becoming SE in the afternoon. Seas 6 ft.
.TONIGHT...E wind 40 kt increasing to 50 kt after midnight. 
Seas 9 ft building to 17 ft after midnight. Rain.
.THU...NE wind 45 kt. Seas 21 ft. Rain.
.THU NIGHT...N wind 35 kt. Seas 19 ft.
.FRI...N wind 35 kt. Seas 20 ft.
.SAT...E wind 30 kt. Seas 13 ft.
.SUN...NE wind 35 kt. Seas 16 ft.

$$

PKZ178-290015-
Kiska to Attu-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...S wind 15 kt becoming E in the afternoon. Seas 7 ft.
.TONIGHT...NE wind 35 kt increasing to 45 kt after midnight.
Bering side, seas 9 ft. Pacific side, seas 9 ft building to 16 ft 
after midnight.
.THU...N wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 14 ft.
.THU NIGHT...N wind 25 kt. Seas 14 ft.
.FRI...NE wind 25 kt. Seas 13 ft.
.SAT...E wind 35 kt. Seas 16 ft.
.SUN...NE wind 35 kt. Seas 15 ft.

$$

PKZ179-290015-
Pribilof Islands Near Shore Waters-
306 AM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TODAY...SE wind 20 kt in the morning becoming variable 10 kt.
Seas 4 ft. Rain.
.TONIGHT...Variable wind 10 kt becoming E 20 kt after midnight.
Seas 4 ft.
.THU...E wind 25 kt increasing to 35 kt in the afternoon. 
Seas 5 ft building to 9 ft in the afternoon.
.THU NIGHT...NE wind 45 kt. Seas 19 ft.
.FRI...NE wind 45 kt. Seas 19 ft.
.SAT...NE wind 25 kt. Seas 11 ft.
.SUN...NE wind 20 kt. Seas 5 ft.

$$

PKZ180-290015-
Kuskokwim Delta and Etolin Strait-
306 AM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...Variable wind less than 10 kt becoming SE 10 kt in the
afternoon. Seas 2 ft.
.TONIGHT...E wind 15 kt. Seas 2 ft.
.THU...E wind 15 kt increasing to 25 kt in the afternoon. Seas 4 ft.
.THU NIGHT...NE wind 35 kt. Seas 9 ft.
.FRI...NE wind 40 kt. Seas 12 ft.
.SAT...N wind 30 kt. Seas 7 ft.
.SUN...N wind 25 kt. Seas 5 ft.

$$

PKZ181-290015-
North and West of Nunivak Island-
306 AM AKDT Wed Oct 28 2020

.TODAY...Variable wind 10 kt. Seas 2 ft.
.TONIGHT...E wind 15 kt. Seas 3 ft.
.THU...NE wind 20 kt. Seas 4 ft.
.THU NIGHT...NE wind 25 kt. Seas 6 ft.
.FRI THROUGH SAT...N wind 25 kt. Seas 6 ft.
.SUN...N wind 15 kt. Seas 5 ft.

$$

PKZ185-290015-
Saint Matthew Island Waters-
306 AM AKDT Wed Oct 28 2020

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

.TODAY...NE wind 20 kt. Seas 6 ft.
.TONIGHT...NE wind 25 kt. Seas 7 ft.
.THU AND THU NIGHT...NE wind 30 kt. Seas 9 ft.
.FRI...N wind 25 kt. Seas 8 ft.
.SAT...NE wind 20 kt. Seas 5 ft.
.SUN...NE wind 15 kt. Seas 5 ft.

$$
143 
FZAK52 PAFC 282352
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
352 PM AKDT Wed Oct 28 2020

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.

PKZ199-291300-
352 PM AKDT Wed Oct 28 2020

.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA PENINSULA 
WATERS AND THE ALEUTIAN ISLANDS...

A 980 mb North Pacific low south of the Aleutians moves to 100 nm S 
of Adak at 970 mb Thu afternoon, then moves 230 nm S of Dutch Harbor 
at 977 mb Fri afternoon.

$$

PKZ150-291300-
South of the AK Peninsula Sitkinak to Castle Cape-
352 PM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 4 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.THU NIGHT...SE wind 25 kt. Seas 4 ft building to 10 ft after
midnight. Rain.
.FRI...SE wind 35 kt. Seas 13 ft.
.FRI NIGHT...E wind 30 kt. Seas 16 ft.
.SAT...N wind 30 kt. Seas 16 ft.
.SUN...N wind 30 kt. Seas 9 ft.
.MON...NW wind 25 kt. Seas 6 ft.

$$

PKZ155-291300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...S wind 15 kt. Seas 5 ft.
.THU...SE wind 25 kt. From the Shumagin Islands E, Variable wind
10 kt becoming SE 20 kt in the afternoon. Seas 7 ft. Rain.
.THU NIGHT...SE wind 30 kt. Seas building to 11 ft. Rain.
.FRI...S wind 20 kt. Seas building to 20 ft.
.FRI NIGHT...E wind 30 kt. Seas 20 ft.
.SAT...N wind 30 kt. Seas 16 ft.
.SUN...NE wind 25 kt. Seas 8 ft.
.MON...N wind 20 kt. Seas 7 ft.

$$

PKZ160-291300-
Bristol Bay-
352 PM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NE wind 10 kt in the evening becoming variable less
than 10 kt. Seas 2 ft.
.THU...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon. Seas 2 ft.
.THU NIGHT...NE wind 20 kt increasing to 30 kt after midnight.
Seas 2 ft building to 6 ft after midnight. Freezing spray.
.FRI...NE wind 40 kt. Seas building to 11 ft.
.FRI NIGHT...NE wind 35 kt. Seas 9 ft.
.SAT THROUGH SUN...N wind 25 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 5 ft.

$$

PKZ165-291300-
Port Heiden to Cape Sarichef-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 3 ft.
.THU...E wind 20 kt increasing to 30 kt in the afternoon. From
Port Moller E, E wind 20 kt. Seas 5 ft.
.THU NIGHT...E wind 45 kt. From Port Moller E, E wind 30 kt
increasing to 40 kt after midnight. Seas building to 13 ft after
midnight. Rain.
.FRI AND FRI NIGHT...NE wind 40 kt. Seas 17 ft.
.SAT...NE wind 30 kt. Seas 13 ft.
.SUN...NE wind 25 kt. Seas 7 ft.
.MON...N wind 20 kt. Seas 6 ft.

$$

PKZ170-291300-
Cape Sarichef to Nikolski Bering Side-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...S wind 15 kt. Seas 3 ft.
.THU...E wind 25 kt increasing to 35 kt in the afternoon. Seas 4
ft building to 8 ft in the afternoon. Rain.
.THU NIGHT...E wind 45 kt. Seas building to 15 ft. Rain.
.FRI...NE wind 50 kt. Seas building to 25 ft.
.FRI NIGHT...NE wind 45 kt. Seas 24 ft.
.SAT...NE wind 35 kt. Seas 19 ft.
.SUN THROUGH MON...NE wind 25 kt. Seas 7 ft.

$$

PKZ171-291300-
Unalaska Bay-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...S wind 10 kt. Seas 1 foot. Rain.
.THU...SE wind 30 kt. Seas 4 ft. Rain.
.THU NIGHT...SE wind 30 kt diminishing to 15 kt after midnight.
Seas 5 ft subsiding to 2 ft after midnight. Rain.
.FRI...NE wind 35 kt. Seas building to 16 ft in the afternoon.
.FRI NIGHT...NE wind 40 kt. Seas 17 ft subsiding to 13 ft after
midnight.
.SAT...NE wind 25 kt. Seas 10 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 5 ft.

$$

PKZ172-291300-
Cape Sarichef to Nikolski Pacific Side-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TONIGHT...SE wind 20 kt. Seas 6 ft.
.THU...SE wind 25 kt increasing to 35 kt in the afternoon. Seas 7
ft building to 11 ft in the afternoon. Rain.
.THU NIGHT...SE wind 30 kt. Seas 12 ft building to 22 ft after
midnight. Rain.
.FRI...E wind 35 kt. Seas 24 ft.
.FRI NIGHT...NE wind 40 kt. Seas 19 ft.
.SAT...NE wind 35 kt. Seas 14 ft.
.SUN THROUGH MON...NE wind 30 kt. Seas 10 ft.

$$

PKZ173-291300-
Nikolski to Seguam Island Bering Side-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...Variable wind 10 kt becoming E 25 kt after midnight.
Seas 4 ft building to 8 ft after midnight.
.THU...E wind 25 kt increasing to 40 kt. Seas 9 ft building to 13 ft
in the afternoon. Rain.
.THU NIGHT...E wind 35 kt. Seas 14 ft building to 21 ft after 
midnight. Rain.
.FRI...NE wind 50 kt. Seas 28 ft.
.FRI NIGHT...N wind 45 kt. Seas 26 ft.
.SAT...NE wind 35 kt. Seas 20 ft.
.SUN THROUGH MON...NE wind 30 kt. Seas 9 ft.

$$

PKZ174-291300-
Nikolski to Seguam Island Pacific Side-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY...

.TONIGHT...Variable wind 10 kt becoming SE 25 kt after midnight.
Seas 5 ft building to 9 ft after midnight.
.THU...SE wind 40 kt. Seas 10 ft building to 15 ft. Rain.
.THU NIGHT...SE wind 30 kt. Seas 16 ft building to 27 ft. Rain.
.FRI AND FRI NIGHT...N wind 50 kt. Seas 26 ft.
.SAT...NE wind 35 kt. Seas 19 ft.
.SUN THROUGH MON...NE wind 35 kt. Seas 13 ft.

$$

PKZ175-291300-
Seguam Island to Adak Bering Side-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...E wind 15 kt increasing to 30 kt after midnight. Seas
5 ft building to 10 ft after midnight.
.THU...E wind 45 kt. Seas 12 ft building to 18 ft. Rain.
.THU NIGHT...NE wind 40 kt. Seas 18 ft building to 22 ft after
midnight. Rain.
.FRI...N wind 45 kt. Seas 27 ft.
.FRI NIGHT...N wind 35 kt. Seas 23 ft.
.SAT...NE wind 25 kt. Seas 17 ft.
.SUN THROUGH MON...NE wind 30 kt. Seas 10 ft.

$$

PKZ176-291300-
Seguam Island to Adak Pacific Side-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 20 kt increasing to 45 kt after midnight. Seas
6 ft building to 14 ft after midnight. Rain.
.THU...SE wind 45 kt becoming E 30 kt in the afternoon. Seas 21
ft. Rain.
.THU NIGHT...N wind 35 kt. Seas 24 ft. Rain.
.FRI...N wind 45 kt. Seas 22 ft.
.FRI NIGHT...N wind 40 kt. Seas 20 ft.
.SAT...NE wind 30 kt. Seas 15 ft.
.SUN THROUGH MON...NE wind 35 kt. Seas 15 ft.

$$

PKZ177-291300-
Adak to Kiska-
352 PM AKDT Wed Oct 28 2020

...STORM WARNING THROUGH THURSDAY...

.TONIGHT...E wind 35 kt increasing to 50 kt after midnight. Bering
side, seas 8 ft building to 14 ft after midnight. Pacific side, seas
12 ft building to 20 ft after midnight. Rain.
.THU...NE wind 50 kt. Seas 21 ft. Rain.
.THU NIGHT...N wind 40 kt. Seas 20 ft. Rain.
.FRI...N wind 40 kt. Seas 20 ft.
.FRI NIGHT...NE wind 25 kt. Seas 16 ft.
.SAT...E wind 30 kt. Seas 13 ft.
.SUN...NE wind 35 kt. Seas 16 ft.
.MON...N wind 30 kt. Seas 15 ft.

$$

PKZ178-291300-
Kiska to Attu-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...E wind 30 kt becoming NE 40 kt after midnight. Seas
10 ft building to 15 ft after midnight.
.THU...N wind 45 kt diminishing to 35 kt in the afternoon. From
Shemya W, N wind 30 kt. Seas 13 ft.
.THU NIGHT...N wind 30 kt. Seas 13 ft.
.FRI...N wind 25 kt. Seas 13 ft.
.FRI NIGHT...E wind 25 kt. Seas 13 ft.
.SAT...E wind 35 kt. Seas 16 ft.
.SUN...NE wind 35 kt. Seas 15 ft.
.MON...N wind 30 kt. Seas 12 ft.

$$

PKZ179-291300-
Pribilof Islands Near Shore Waters-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...S wind 20 kt. Seas 5 ft.
.THU...E wind 25 kt increasing to 35 kt in the afternoon. Seas 8
ft building to 11 ft in the afternoon.
.THU NIGHT...E wind 45 kt. Seas 12 ft building to 17 ft.
.FRI...NE wind 45 kt. Seas 19 ft.
.FRI NIGHT...NE wind 35 kt. Seas 16 ft.
.SAT...NE wind 25 kt. Seas 11 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 6 ft.

$$

PKZ180-291300-
Kuskokwim Delta and Etolin Strait-
352 PM AKDT Wed Oct 28 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 10 kt. Seas 2 ft.
.THU...NE wind 20 kt. Seas 4 ft.
.THU NIGHT...NE wind 25 kt increasing to 35 kt after midnight.
Seas 8 ft building to 12 ft after midnight. Freezing spray.
.FRI...NE wind 40 kt. Seas 12 ft.
.FRI NIGHT...N wind 30 kt. Seas 10 ft.
.SAT...N wind 30 kt. Seas 7 ft.
.SUN...N wind 25 kt. Seas 5 ft.
.MON...N wind 15 kt. Seas 5 ft.

$$

PKZ181-291300-
North and West of Nunivak Island-
352 PM AKDT Wed Oct 28 2020

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 4 ft.
.THU...NE wind 20 kt. Seas 5 ft.
.THU NIGHT...NE wind 25 kt. Seas 8 ft.
.FRI...NE wind 30 kt. Seas 10 ft.
.FRI NIGHT...N wind 25 kt. Seas 8 ft.
.SAT...N wind 25 kt. Seas 8 ft.
.SUN THROUGH MON...NW wind 15 kt. Seas 5 ft.

$$

PKZ185-291300-
Saint Matthew Island Waters-
352 PM AKDT Wed Oct 28 2020

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

.TONIGHT...NE wind 25 kt. Seas 8 ft.
.THU...NE wind 25 kt. Seas 9 ft.
.THU NIGHT...NE wind 25 kt. Seas 9 ft.
.FRI...N wind 25 kt. Seas 9 ft.
.FRI NIGHT...N wind 20 kt. Seas 7 ft.
.SAT...NE wind 20 kt. Seas 5 ft.
.SUN...NE wind 15 kt. Seas 5 ft.
.MON...NW wind 20 kt. Seas 6 ft.

$$
361 
FZAK52 PAFC 291115
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
315 AM AKDT Thu Oct 29 2020

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.

PKZ199-292345-
315 AM AKDT Thu Oct 29 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 970 mb low at 320 nm southwest of Adak moves to 225 nm southwest
of Unalaska at 972 mb on Fri morning. Its front weakens across 
the central and eastern Aleutians by Sat as the low departs to the
south. 

$$

PKZ150-292345-
South of the AK Peninsula Sitkinak to Castle Cape-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING FRIDAY...

.TODAY...W wind 15 kt. Seas 4 ft.
.TONIGHT...SE wind 15 kt increasing to 25 kt after midnight. 
Seas 4 ft building to 9 ft after midnight. Rain.
.FRI...SE wind increasing to 35 kt. Seas 13 ft. Rain.
.FRI NIGHT...NE wind 30 kt. Seas 17 ft.
.SAT...N wind 30 kt. Seas 16 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 11 ft.

$$

PKZ155-292345-
South of the AK Peninsula Castle Cape to Cape Sarichef-
315 AM AKDT Thu Oct 29 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 25 kt. From the Shumagin Islands E, variable 
wind 10 kt becoming SE 25 kt in the afternoon. Seas 8 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 11 ft. Rain.
.FRI...S wind 20 kt. Seas 14 ft building to 22 ft in the
afternoon. From the Shumagin Islands E, seas 13 ft. Rain.
.FRI NIGHT...E wind 30 kt. Seas 21 ft.
.SAT...N wind 30 kt. Seas 17 ft.
.SUN...N wind 30 kt. Seas 9 ft.
.MON...NW wind 25 kt. Seas 7 ft.

$$

PKZ160-292345-
Bristol Bay-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon. Seas 3 ft.
.TONIGHT...NE wind 20 kt increasing to 35 kt after midnight. 
Seas 2 ft building to 6 ft after midnight. Freezing spray along 
the coast.
.FRI...NE wind 40 kt. Seas 10 ft. Freezing spray along the coast.
.FRI NIGHT...NE wind 35 kt. Seas 9 ft.
.SAT...N wind 25 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 8 ft.

$$

PKZ165-292345-
Port Heiden to Cape Sarichef-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...E wind 20 kt increasing to 30 kt in the afternoon. 
From Port Moller E, E wind 20 kt. Seas 5 ft.
.TONIGHT...E wind 45 kt. From Port Moller E, E wind 30 kt 
becoming NE 40 kt after midnight. Seas 9 ft building to 
14 ft after midnight. Rain.
.FRI...NE wind 45 kt. Seas 18 ft. Rain.
.FRI NIGHT...NE wind 45 kt. Seas 18 ft.
.SAT...NE wind 30 kt. Seas 13 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 10 ft.

$$

PKZ170-292345-
Cape Sarichef to Nikolski Bering Side-
315 AM AKDT Thu Oct 29 2020

...STORM WARNING FRIDAY...

.TODAY...E wind 30 kt increasing to 40 kt in the afternoon. 
Seas 5 ft building to 9 ft in the afternoon. Rain.
.TONIGHT...E wind 45 kt. Seas 16 ft. Rain.
.FRI...NE wind 50 kt. Seas 25 ft. Rain.
.FRI NIGHT...NE wind 45 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 18 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 9 ft.

$$

PKZ171-292345-
Unalaska Bay-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING FRIDAY...

.TODAY...SE wind 25 kt. Seas 4 ft. Rain.
.TONIGHT...SE wind 30 kt becoming E 15 kt after 
midnight. Seas 5 ft subsiding to 2 ft after midnight. Rain.
.FRI...E wind 20 kt becoming NE 35 kt in the afternoon. 
Seas 3 ft building to 16 ft in the afternoon. Rain.
.FRI NIGHT...NE wind 40 kt. Seas 19 ft.
.SAT...NE wind 30 kt. Seas 13 ft.
.SUN...NE wind 20 kt. Seas 7 ft.
.MON...N wind 15 kt. Seas 5 ft.

$$

PKZ172-292345-
Cape Sarichef to Nikolski Pacific Side-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TODAY AND FRIDAY...

.TODAY...SE wind 25 kt increasing to 35 kt in the afternoon. 
Seas 11 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 11 ft building to 21 ft after
midnight. Rain.
.FRI...SE wind 25 kt becoming NE 35 kt in the afternoon. 
Seas 25 ft. Rain.
.FRI NIGHT...NE wind 40 kt. Seas 20 ft.
.SAT...NE wind 40 kt. Seas 15 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 8 ft.

$$

PKZ173-292345-
Nikolski to Seguam Island Bering Side-
315 AM AKDT Thu Oct 29 2020

...STORM WARNING FRIDAY...

.TODAY...E wind 45 kt. Seas 13 ft. Rain.
.TONIGHT...NE wind 40 kt. Seas 13 ft building to 
20 ft after midnight. Rain.
.FRI...NE wind 50 kt. Seas 27 ft. Rain.
.FRI NIGHT...N wind 45 kt. Seas 26 ft.
.SAT...NE wind 35 kt. Seas 19 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 10 ft.

$$

PKZ174-292345-
Nikolski to Seguam Island Pacific Side-
315 AM AKDT Thu Oct 29 2020

...STORM WARNING FRIDAY...

.TODAY...SE wind 40 kt. Seas 14 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 26 ft. Rain.
.FRI...N wind 40 kt increasing to 50 kt in the 
afternoon. Seas 24 ft. Rain.
.FRI NIGHT...N wind 50 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 18 ft.
.SUN THROUGH MON...NE wind 30 kt. Seas 11 ft.

$$

PKZ175-292345-
Seguam Island to Adak Bering Side-
315 AM AKDT Thu Oct 29 2020

...STORM WARNING TODAY...

.TODAY...E wind 50 kt. Seas 17 ft. Rain.
.TONIGHT...NE wind 45 kt. Seas 22 ft. Rain.
.FRI...N wind 45 kt. Seas 26 ft. Rain.
.FRI NIGHT...N wind 40 kt. Seas 23 ft.
.SAT...NE wind 25 kt. Seas 17 ft.
.SUN THROUGH MON...N wind 30 kt. Seas 12 ft.

$$

PKZ176-292345-
Seguam Island to Adak Pacific Side-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING THROUGH FRIDAY...

.TODAY...SE wind 45 kt becoming E 30 kt in the 
afternoon. Seas 20 ft. Rain.
.TONIGHT...N wind 35 kt. Seas 24 ft. Rain.
.FRI...N wind 35 kt increasing to 45 kt in 
the afternoon. Seas 21 ft. Rain.
.FRI NIGHT...N wind 45 kt. Seas 21 ft.
.SAT...NE wind 30 kt. Seas 15 ft.
.SUN THROUGH MON...NE wind 35 kt. Seas 13 ft.

$$

PKZ177-292345-
Adak to Kiska-
315 AM AKDT Thu Oct 29 2020

...STORM WARNING TODAY...

.TODAY...NE wind 50 kt. Seas 21 ft. Rain.
.TONIGHT...N wind 40 kt. Seas 21 ft. Rain.
.FRI...N wind 35 kt. Seas 21 ft Bering side...14 ft Pacific side.
.FRI NIGHT...NE wind 30 kt. Seas 17 ft.
.SAT...E wind 30 kt. Seas 13 ft.
.SUN...NE wind 35 kt. Seas 14 ft.
.MON...N wind 30 kt. Seas 13 ft.

$$

PKZ178-292345-
Kiska to Attu-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TODAY...

.TODAY...N wind 45 kt diminishing to 35 kt in the 
afternoon. From Shemya W, N wind 30 kt. Seas 14 ft.
.TONIGHT...N wind 25 kt. Seas 14 ft. Rain.
.FRI...N wind 25 kt. Seas 14 ft.
.FRI NIGHT...E wind 20 kt. Seas 12 ft.
.SAT...E wind 35 kt. Seas 16 ft.
.SUN...NE wind 35 kt. Seas 15 ft.
.MON...N wind 25 kt. Seas 11 ft.

$$

PKZ179-292345-
Pribilof Islands Near Shore Waters-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...E wind 20 kt increasing to 35 kt 
in the afternoon. Seas 9 ft.
.TONIGHT...E wind 45 kt. Seas 17 ft.
.FRI...NE wind 45 kt. Seas 19 ft.
.FRI NIGHT...NE wind 40 kt. Seas 17 ft.
.SAT...NE wind 25 kt. Seas 11 ft.
.SUN...NE wind 20 kt. Seas 7 ft.
.MON...NW wind 20 kt. Seas 6 ft.

$$

PKZ180-292345-
Kuskokwim Delta and Etolin Strait-
315 AM AKDT Thu Oct 29 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...NE wind 20 kt. Seas 3 ft.
.TONIGHT...NE wind 25 kt increasing to 35 kt after midnight. 
Seas 8 ft. Freezing spray along the coast.
.FRI...NE wind 40 kt. Seas 12 ft. Freezing spray along the coast.
.FRI NIGHT...N wind 35 kt. Seas 11 ft.
.SAT...N wind 25 kt. Seas 7 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 7 ft.

$$

PKZ181-292345-
North and West of Nunivak Island-
315 AM AKDT Thu Oct 29 2020

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...NE wind 20 kt. Seas 3 ft.
.TONIGHT...NE wind 25 kt. Seas 5 ft.
.FRI...NE wind 25 kt. Seas 6 ft.
.FRI NIGHT THROUGH SAT...N wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 25 kt. Seas 5 ft.

$$

PKZ185-292345-
Saint Matthew Island Waters-
315 AM AKDT Thu Oct 29 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE wind 30 kt. Seas 8 ft.
.TONIGHT...NE wind 25 kt. Seas 8 ft.
.FRI...NE wind 25 kt E of Saint Matthew Island...N 20 kt 
W of Saint Matthew Island. Seas 8 ft.
.FRI NIGHT...NW wind 15 kt. Seas 7 ft.
.SAT...NE wind 15 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 5 ft.
.MON...W wind 20 kt. Seas 6 ft.

$$

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Oct 27, 4:59 AM AKDT, 10 hours 53 minutes earlier.

Area forecast discussion, Oct 27, 4:59 AM AKDT, 10 hours 53 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
459 AM AKDT Tue Oct 27 2020

.ANALYSIS AND UPPER LEVELS...

A positively tilted trough extends from northwestern Canada
through Southwest Alaska, with a potent vort max moving over
the Alaska Peninsula. Water vapor imagery shows drying across
much of Southcentral, though a few lingering showers are seen near
Prince William sound under a weakening surface low. Predominately
zonal flow will develop to the west.

&&

.MODEL DISCUSSION...

Model agreement remains good in the short term with no impactful
weather over Southcentral. There remains some disagreement with
regards to a low approaching the western and central Aleutians
Wednesday into Thursday. The GFS is the strongest, while other
models/ensembles are slightly weaker (up to 10 mb). The strength
of the cold advection on its north side will determine how deep it
will ultimately become. Confidence remains moderate for this
system.

&&

.AVIATION...

PANC...Scattered low clouds and brief showers remain possible in
the early morning, leading to MVFR conditions. Skies are expected
to clear thereafter with VFR ceilings and light winds persisting
through Wednesday morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3/Today
through Thursday night)...
A short-wave trough over Southcentral Alaska early this morning
will stall along the north Gulf coast this afternoon and weaken
as ridging from the north takes over. Expect no more than a few
showers with this trough, primarily from the southern Copper River
Basin southward into the Gulf. Clouds will decrease behind the
trough and colder air will continue to filter into the region.

Temperatures will drop more significantly tonight underneath the
mostly clear skies and these colder temperatures will become the
norm for the foreseeable future. A series of short-waves crossing
the northern half of the state will bring colder and colder air
southward into Southcentral. The advection will be weak, so this
will be a gradual process with each day become a little bit
colder. By Thursday, temperatures for all but the immediate
coastline are expected to top out in the 20s. A surface low will
linger over the northeast Gulf, with clouds and some light snow
possible over the eastern Copper River Basin. The presence of the
low combined with the weak cold air advection will maintain gap
winds along the Gulf coast and Prince William Sound. However, none
of these winds look particularly strong.

Thursday through Thursday night looks a little more interesting.
A higher amplitude short-wave trough will dive out of eastern
Russia, southward across western Alaska and toward Southcentral
Alaska. Meanwhile, a deep low tracking along the Aleutians will
approach the Gulf. The timing of each of these feature will be
critical to determining how much of the arctic air accompanying
the trough makes it into Southcentral and where the leading
frontal system with the Aleutian storm tracks. At the moment,
model guidance is in general agreement on the frontal system
leading the way into the Gulf and the short-wave/arctic air then
causing development of a triple point low which eventually tracks
to the northeast Gulf (on Friday). This has potential to be a
decent snow producer with ample arctic air in place over
Southcentral. The current track would favor eastern Prince William
Sound and the Copper River Basin. However, timing of each feature
could shift the snow to the west or to the east.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...

A quiet weather pattern is setting up across Southwest Alaska for
the next few days. Lingering snow/rain showers this morning will
taper off throughout the day as the low system over the eastern
part of the state exits the region. However, an upper level wave
will keep precipitation confined to the AKPEN through Wednesday.
The cooling trend throughout the week continues as and upper level
trough and cold air advection moves into the Southwest.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...

A low situated near the western Aleutians and Bering allow a weak
front to moves eastward through Wednesday. Small craft advisory
level winds are expected with this system as it move into the
eastern Bering.

A much stronger North Pacific system approaches the Aleutians
late Wednesday. Models are still in good agreement with the track
and strength of this system, bringing high end gales force winds.
Storm force winds cannot be ruled out, especially over the eastern
Bering Thursday afternoon through Friday as cold air advection
should help keep higher winds in the forecast.

&&

.MARINE (Days 3 through 5)...

A surface low will linger over the Northern Gulf through late
Friday. Models are in good agreement for the low tracking just
south of the Aleutians later this week. The latest model runs
have increased the overall strength of this system, thus, gales
will accompany this low, with storms becoming increasingly likely.
An associated trough pushes into the Southern Gulf by late
Friday, with good model agreement on the formation of a surface
low. Models disagree on where the low forms and the strength, with
the GFS being the strongest. Depending on which solution pans
out, gales may be possible.

&&

.LONG TERM FORECAST (Days 3 through 7)...

Multiple polar waves will track south across the state, bringing
colder air to the Southwest/Southcentral regions. In conjunction
with cold advection, possible clearing will aid in dropping
temperatures significantly, especially overnight, for the
Southcentral and inland Southwest areas by the end of the week.

Models agree quite well for the North Pacific low traveling just
south of the Aleutians. Both the ECMWF and Canadian solutions have
increased the strength of this system to better match the GFS,
which has been consistently stronger. Gales are very likely along
the Aleutian Coasts, with storms becoming increasingly possible.
By the end of the weekend and into early next week, a second
system approaches the Aleutians out of the west. Models are in
fair agreement on the path but vary greatly on center location and
strength.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning: 130.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...AP
SOUTHCENTRAL ALASKA...SEB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...AH
MARINE/LONG TERM...KM

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 26, 4:00 PM AKDTGale WarningAFC12 hr
Oct 26, 4:06 PM AKDTGale WarningAFC11 hr
Oct 26, 4:06 PM AKDTSmall Craft AdvisoryAFC35 hr
Oct 27, 3:31 AM AKDTSmall Craft AdvisoryAFC36 hr
Oct 27, 3:35 AM AKDTSmall Craft AdvisoryAFC60 hr
Oct 27, 3:50 PM AKDTSmall Craft AdvisoryAFC72 hr
Oct 27, 3:52 PM AKDTGale WarningAFC48 hr
Oct 27, 3:52 PM AKDTSmall Craft AdvisoryAFC11 hr

Nearby

Storm Warnings in Alaska, 2020Every storm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.