Storm Warning 133, NWS Anchorage, AK

879 
FZAK62 PAFC 202337
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
337 PM AKDT Wed Oct 20 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-211400-
337 PM AKDT Wed Oct 20 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 mb low at 50N 172E moves to 57N 170W at 947 mb for Thu 
afternoon then shifts to 55N 157W at 961 mb by Fri afternoon. Its 
front moves across the Aleutians into the Southern Gulf through 
Fri afternoon. A 999 mb North Pacific low moves to 47N 176W at 
1003 mb by Fri afternoon.

$$

PKZ411-211400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
337 PM AKDT Wed Oct 20 2021

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...NE wind 15 to 30 kt becoming N 25 to 40 kt after
midnight. Seas 8 to 13 ft. Rain and snow showers.
.THU AND THU NIGHT...NW wind 20 to 40 kt. Seas 10 to 18 ft.
.FRI...NW wind 15 to 25 kt. Seas 9 to 14 ft.
.FRI NIGHT...W wind 10 to 25 kt. Seas 8 to 12 ft.
.SAT...SW wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...N wind up to 20 kt. Seas 4 to 7 ft.
.MON...SW wind 15 to 25 kt. Seas 6 ft.

$$

PKZ412-211400-
Bering Sea Offshore 171W to 180 and North of 56N-
337 PM AKDT Wed Oct 20 2021

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SE wind up to 20 kt becoming E 20 to 35 kt after
midnight. Seas 8 to 12 ft. Rain.
.THU...NE wind 25 to 40 kt becoming N 40 to 55 kt in the
afternoon. Seas 12 to 20 ft. Rain and snow showers.
.THU NIGHT...NW wind 40 to 55 kt. Seas 17 to 27 ft. Rain showers.
.FRI...NW wind 30 to 45 kt. Seas 15 to 23 ft.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 11 to 17 ft.
.SAT...W wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN...N wind 10 to 20 kt. Seas 4 to 7 ft.
.MON...W wind 15 to 25 kt. Seas 6 ft.

$$

PKZ413-211400-
Bering Sea Offshore 171W to 180 and South of 56N-
337 PM AKDT Wed Oct 20 2021

...HURRICANE FORCE WIND WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SE wind 20 to 35 kt increasing to 30 to 45 kt after
midnight. Seas 10 to 15 ft. Rain.
.THU...NW wind 35 to 50 kt becoming W 50 to 65 kt in the afternoon. 
Seas 13 to 20 ft building to 21 to 30 ft in the afternoon. Rain 
showers.
.THU NIGHT...W wind 50 to 65 kt. Seas 21 to 36 ft.
.FRI...W wind 40 to 55 kt. Seas 16 to 31 ft.
.FRI NIGHT...W wind 25 to 40 kt. Seas 12 to 20 ft.
.SAT...W wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN...N wind 15 to 30 kt. Seas 5 to 10 ft.
.MON...W wind 25 kt. Seas 6 to 9 ft.

$$

PKZ414-211400-
Bering Sea Offshore East of 171W-
337 PM AKDT Wed Oct 20 2021

...HURRICANE FORCE WIND WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 10 to 25 kt becoming SE 30 to 45 kt after
midnight. Seas 9 to 14 ft. Rain.
.THU...SE wind 30 to 45 kt increasing to 40 to 55 kt in the
afternoon, except W 40 to 60 kt S of 56N in the afternoon.
Seas 12 to 20 ft. Rain.
.THU NIGHT...W wind 50 to 65 kt, except NE 30 to 45 kt N of 57N. 
Seas 20 to 35 ft. Rain showers.
.FRI...NW wind 45 to 60 kt. Seas 16 to 31 ft.
.FRI NIGHT THROUGH SAT...NW wind 25 to 40 kt. Seas 11 to 19 ft.
.SUN THROUGH MON...NW wind 15 to 30 kt. Seas 5 to 9 ft.

$$

064 
FZAK62 PAFC 211148
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
348 AM AKDT Thu Oct 21 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-220200-
348 AM AKDT Thu Oct 21 2021

.SYNOPSIS FOR CENTRAL BERING SEA...A strong 956 mb low at 55N 176W 
rapidly moves to 55N 164W at 950 mb Fri morning. The low then crosses
the North Pacific at 55N 155W at 958 mb Fri afternoon. 

$$

PKZ411-220200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
348 AM AKDT Thu Oct 21 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 30 to 45 kt. Seas 9 to 17 ft.
.TONIGHT...NW wind 25 to 40 kt diminishing to 20 to 30 kt after
midnight. Seas 11 to 17 ft.
.FRI...NW wind 15 to 25 kt. Seas 9 to 13 ft.
.FRI NIGHT...W wind 15 to 25 kt. Seas 7 to 11 ft.
.SAT...SW wind 10 to 25 kt. Seas 4 to 8 ft.
.SUN...N wind 15 to 30 kt. Seas 5 to 10 ft.
.MON...SW wind 15 to 30 kt. Seas 6 ft.

$$

PKZ412-220200-
Bering Sea Offshore 171W to 180 and North of 56N-
348 AM AKDT Thu Oct 21 2021

...STORM WARNING THROUGH TONIGHT...

.TODAY...N wind 35 to 50 kt. Seas 11 to 19 ft. Rain and widespread
snow showers.
.TONIGHT...NW wind 40 to 55 kt. Seas 15 to 25 ft. Rain.
.FRI...NW wind 30 to 45 kt. Seas 13 to 21 ft. Rain showers.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft.
.SAT...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN...N wind up to 20 kt. Seas 5 to 8 ft.
.MON...W wind 15 to 25 kt. Seas 6 ft.

$$

PKZ413-220200-
Bering Sea Offshore 171W to 180 and South of 56N-
348 AM AKDT Thu Oct 21 2021

...HURRICANE FORCE WIND WARNING THROUGH TONIGHT...

.TODAY...W wind 40 to 55 kt becoming NW 50 to 65 kt in the
afternoon. Seas 15 to 30 ft. Rain showers.
.TONIGHT...NW wind 50 to 65 kt. Seas 19 to 34 ft.
.FRI...NW wind 40 to 55 kt diminishing to 30 to 45 kt in the
afternoon. Seas 16 to 24 ft.
.FRI NIGHT...NW wind 25 to 40 kt. Seas 11 to 18 ft.
.SAT...W wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN...NE wind 20 to 35 kt. Seas 8 to 13 ft.
.MON...W wind 15 to 25 kt. Seas 6 to 9 ft.

$$

PKZ414-220200-
Bering Sea Offshore East of 171W-
348 AM AKDT Thu Oct 21 2021

...HURRICANE FORCE WIND WARNING TONIGHT...

.TODAY...SE wind 30 to 45 kt increasing to 40 to 55 kt in the
afternoon. Seas 9 to 17 ft building to 16 to 24 ft in the
afternoon. Rain.
.TONIGHT...SE wind 50 to 65 kt becoming N after midnight. Seas 20
to 35 ft. Widespread rain showers.
.FRI...N wind 45 to 60 kt becoming NW 30 to 45 kt in the
afternoon. Seas 15 to 30 ft. Rain showers.
.FRI NIGHT...NW wind 25 to 40 kt. Seas 12 to 20 ft.
.SAT...NW wind 20 to 35 kt. Seas 9 to 17 ft.
.SUN...N wind 10 to 25 kt. Seas 6 to 11 ft.
.MON...NW wind 20 to 30 kt. Seas 6 to 9 ft.

$$

980 
FZAK62 PAFC 212253
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
253 PM AKDT Thu Oct 21 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-221245-
253 PM AKDT Thu Oct 21 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A strong 945 mb low at 56N 170W rapidly moves to 55N 155W at 961 
mb Fri afternoon. Its front moves into Western Alaska and the Gulf
of Alaska for Thu night. A 1001 mb North Pacific low passes south
of the Aleutians through Sat afternoon.

$$

PKZ411-221245-
Bering Sea Offshore West of 180 and East of the International
Dateline-
253 PM AKDT Thu Oct 21 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 25 to 40 kt diminishing to 20 to 30 kt after
midnight. Seas 11 to 17 ft.
.FRI...NW wind 15 to 25 kt. Seas 9 to 13 ft.
.FRI NIGHT...W wind 15 to 25 kt. Seas 7 to 10 ft.
.SAT...W wind up to 20 kt. Seas 5 to 8 ft.
.SAT NIGHT...SE wind 10 to 25 kt. Seas 5 ft.
.SUN...N wind 15 to 30 kt. Seas 5 to 10 ft.
.MON THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 9 ft.

$$

PKZ412-221245-
Bering Sea Offshore 171W to 180 and North of 56N-
253 PM AKDT Thu Oct 21 2021

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 40 to 55 kt. Seas 15 to 25 ft. Rain.
.FRI...NW wind 30 to 45 kt. Seas 13 to 21 ft. Rain showers.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 5 to 10 ft.
.SUN...N wind up to 20 kt. Seas 5 to 8 ft.
.MON THROUGH TUE...W wind 15 to 25 kt. Seas 7 ft.

$$

PKZ413-221245-
Bering Sea Offshore 171W to 180 and South of 56N-
253 PM AKDT Thu Oct 21 2021

...HURRICANE FORCE WIND WARNING TONIGHT...

.TONIGHT...NW wind 50 to 65 kt. Seas 19 to 34 ft.
.FRI...NW wind 40 to 55 kt diminishing to 30 to 45 kt in the
afternoon. Seas 16 to 24 ft.
.FRI NIGHT...NW wind 25 to 40 kt becoming W after midnight. 
Seas 11 to 18 ft.
.SAT...W wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...SW wind 10 to 25 kt. Seas 5 to 10 ft.
.SUN...NE wind 20 to 35 kt. Seas 8 to 13 ft.
.MON THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 9 ft.

$$

PKZ414-221245-
Bering Sea Offshore East of 171W-
253 PM AKDT Thu Oct 21 2021

...HURRICANE FORCE WIND WARNING TONIGHT...

.TONIGHT...SE wind 50 to 65 kt becoming N after midnight. Seas 20
to 35 ft. Widespread rain showers.
.FRI...N wind 45 to 60 kt becoming NW 30 to 45 kt in the
afternoon. Seas 15 to 30 ft. Rain showers.
.FRI NIGHT...NW wind 25 to 40 kt. Seas 12 to 20 ft.
.SAT...NW wind 25 to 35 kt. Seas 12 to 18 ft.
.SAT NIGHT...NW wind 20 to 35 kt. Seas 8 to 16 ft.
.SUN...N wind 10 to 25 kt. Seas 6 to 11 ft.
.MON THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 9 ft.

$$

415 
FZAK62 PAFC 221200
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
400 AM AKDT Fri Oct 22 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-230115-
400 AM AKDT Fri Oct 22 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

The Semisopochnoi volcano which is located 52N 180W, is currently
active.

A 953 mb low at 56N 164W moves into the Gulf by Fri afternoon. A 
978 mb N Pacific low moves to 49N 179E Sun morning.

$$

PKZ411-230115-
Bering Sea Offshore West of 180 and East of the International
Dateline-
400 AM AKDT Fri Oct 22 2021

.TODAY...NW wind 25 kt. Seas 9 to 13 ft.
.TONIGHT...W wind 15 to 25 kt. Seas 8 to 11 ft.
.SAT...W wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...S wind up to 10 kt. Seas 5 ft.
.SUN...S wind up to 10 kt. Seas 3 ft.
.MON THROUGH TUE...W wind 15 to 30 kt. Seas 4 to 9 ft.

$$

PKZ412-230115-
Bering Sea Offshore 171W to 180 and North of 56N-
400 AM AKDT Fri Oct 22 2021

...STORM WARNING TODAY...

.TODAY...NW wind 35 to 50 kt decreasing to 25 to 40 kt in the
afternoon. Seas 12 to 22 ft. Rain showers.
.TONIGHT...NW wind 20 to 35 kt. Seas 10 to 18 ft.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...NW wind up to 20 kt. Seas 5 to 9 ft.
.SUN THROUGH MON...W wind up to 20 kt. Seas 3 to 7 ft.
.TUE...W wind 15 to 30 kt. Seas 8 ft.

$$

PKZ413-230115-
Bering Sea Offshore 171W to 180 and South of 56N-
400 AM AKDT Fri Oct 22 2021

...STORM WARNING TODAY...

.TODAY...NW wind 35 to 50 kt diminishing to 25 to 40 kt in the
afternoon. Seas 14 to 24 ft.
.TONIGHT...NW wind 20 to 35 kt. Seas 11 to 18 ft.
.SAT...W wind 15 to 30 kt. Seas 8 to 16 ft.
.SAT NIGHT...SW wind up to 20 kt. Seas 4 to 9 ft.
.SUN...NE wind up to 15 kt. Seas 3 to 6 ft.
.MON THROUGH TUE...W wind 15 to 30 kt. Seas 3 to 7 ft.

$$

PKZ414-230115-
Bering Sea Offshore East of 171W-
400 AM AKDT Fri Oct 22 2021

...STORM WARNING TODAY...

.TODAY...NW wind 45 to 60 kt becoming NW 30 to 45 kt in the 
afternoon. Seas 15 to 35 ft. Rain showers.
.TONIGHT...NW wind 25 to 40 kt. Seas 13 to 23 ft.
.SAT...NW wind 25 to 40 kt. Seas 12 to 19 ft.
.SAT NIGHT...NW wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN THROUGH TUE...W wind 10 to 25 kt. Seas 5 to 9 ft.

$$

394 
FZAK62 PAFC 222335
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
335 PM AKDT Fri Oct 22 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-231315-
335 PM AKDT Fri Oct 22 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

The Semisopochnoi volcano, located 52N 180W, is currently active.

A series of weak troughs moves over the Bering through Sun 
afternoon. A 998 mb low at 47N 170W continues into the North 
Pacific for Sun afternoon. A 996 mb North Pacific low intensifies 
to 970 mb as it moves to 51N 171W by Sun afternoon. Its front 
remains South of the Aleutians through Sun afternoon.

$$

PKZ411-231315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
335 PM AKDT Fri Oct 22 2021

.TONIGHT...W wind 15 to 25 kt. Seas 8 to 11 ft.
.SAT...W wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...SE wind up to 10 kt. Seas 5 ft.
.SUN...S wind up to 10 kt. Seas 4 ft.
.SUN NIGHT...SW wind 10 kt. Seas 3 ft.
.MON THROUGH WED...W wind 15 to 30 kt. Seas 4 to 9 ft.

$$

PKZ412-231315-
Bering Sea Offshore 171W to 180 and North of 56N-
335 PM AKDT Fri Oct 22 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 20 to 35 kt. Seas 10 to 17 ft.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...NW wind 10 to 20 kt. Seas 6 to 9 ft.
.SUN...NW wind up to 15 kt. Seas 3 to 7 ft.
.SUN NIGHT...NW wind up to 15 kt. Seas 3 to 6 ft.
.MON THROUGH WED...NW wind 15 to 30 kt. Seas 5 to 10 ft.

$$

PKZ413-231315-
Bering Sea Offshore 171W to 180 and South of 56N-
335 PM AKDT Fri Oct 22 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 20 to 35 kt. Seas 11 to 18 ft.
.SAT...W wind 15 to 30 kt. Seas 8 to 16 ft.
.SAT NIGHT...W wind up to 20 kt becoming SW after midnight. 
Seas 4 to 9 ft.
.SUN...NE wind up to 10 kt. Seas 5 ft.
.SUN NIGHT...W wind up to 15 kt. Seas 3 to 6 ft.
.MON THROUGH WED...W wind 15 to 30 kt. Seas 5 to 10 ft.

$$

PKZ414-231315-
Bering Sea Offshore East of 171W-
335 PM AKDT Fri Oct 22 2021

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 25 to 40 kt. Seas 13 to 21 ft.
.SAT...NW wind 25 to 40 kt. Seas 12 to 18 ft.
.SAT NIGHT...NW wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 9 to 14 ft.
.SUN...NW wind 10 to 25 kt. Seas 5 to 9 ft.
.SUN NIGHT...NW wind 10 to 20 kt. Seas 6 ft.
.MON THROUGH WED...NW wind 15 to 30 kt. Seas 6 to 11 ft.

$$