Gale Warning 240, NWS Anchorage, AK

950 
FZAK62 PAFC 011056
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
256 AM AKDT Wed Apr 1 2020

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.

PKZ499-020115-
256 AM AKDT Wed Apr 1 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A broad area of low pressure in the eastern Bering dissipates by
Wed night. A frontal boundary enters the western Bering Wed
afternoon and weakens in the eastern Bering by Thu evening, as a
stronger front enters the western Aleutians Thu night.

$$

PKZ411-020115-
Bering Sea Offshore West of 180 and East of the International
Dateline-
256 AM AKDT Wed Apr 1 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 15 to 30 kt. Seas 7 to 12 ft.
.TONIGHT...SW wind 25 to 35 kt. Seas 9 to 17 ft.
.THU...W wind 20 to 35 kt diminishing to 10 to 25 kt in the 
afternoon. Seas 9 to 17 ft. Snow.
.THU NIGHT...SE wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI...S wind 30 to 45 kt. Seas 14 to 22 ft.
.SAT...SW wind 25 to 40 kt. Seas 16 to 24 ft.
.SUN...W wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ412-020115-
Bering Sea Offshore 171W to 180 and North of 56N-
256 AM AKDT Wed Apr 1 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 10 to 25 kt. Seas 6 ft.
.TONIGHT...SW wind 15 to 30 kt increasing to 25 to 35 kt after
midnight. Seas 7 to 12 ft.
.THU...SW wind 25 to 35 kt. Seas 8 to 16 ft.
.THU NIGHT...SW wind 15 to 30 kt. Seas 9 to 14 ft.
.FRI...S wind 25 to 40 kt. Seas 12 to 20 ft.
.SAT...SW wind 25 to 40 kt. Seas 15 to 28 ft.
.SUN...W wind 25 kt. Seas 5 to 10 ft.

$$

PKZ413-020115-
Bering Sea Offshore 171W to 180 and South of 56N-
256 AM AKDT Wed Apr 1 2020

.TODAY...W wind 15 kt becoming SW in the afternoon. Seas 5 ft.
.TONIGHT...SW wind 10 to 25 kt increasing to 20 to 30 kt after
midnight. Seas 5 to 10 ft.
.THU...SW wind 15 to 30 kt. Seas 9 to 14 ft.
.THU NIGHT...SW wind 20 to 35 kt. Seas 11 to 14 ft.
.FRI THROUGH SAT...SW wind 30 to 45 kt. Seas 13 to 27 ft.
.SUN...W wind 15 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-020115-
Bering Sea Offshore East of 171W-
256 AM AKDT Wed Apr 1 2020

.TODAY...NW wind 10 to 20 kt. Seas 4 ft.
.TONIGHT...NW wind up to 15 kt becoming SW 10 to 25 kt after
midnight. Seas 4 ft. Freezing spray.
.THU...SW wind 10 to 25 kt increasing to 20 to 30 kt in the
afternoon. Seas 4 to 9 ft. Freezing spray.
.THU NIGHT...SW wind 15 to 25 kt. Seas 6 to 11 ft.
.FRI THROUGH SAT...SW wind 25 to 40 kt. Seas 9 to 14 ft.
.SUN...W wind 25 kt. Seas 5 to 10 ft.

$$

280 
FZAK62 PAFC 012350
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 PM AKDT Wed Apr 1 2020

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.

PKZ499-021430-
350 PM AKDT Wed Apr 1 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1003 mb low at 58N 167E this afternoon will move to 63N 177W at
1006 mb Thursday afternoon. A second 981 mb low at 51N 165E early
Friday morning will move to 56N 173E at 989 mb Friday afternoon.

$$

PKZ411-021430-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 PM AKDT Wed Apr 1 2020

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

.TONIGHT...SW wind 25 increasing to 35 kt. Seas 9 to 17 ft.
.THU...SW wind 30 kt decreasing to 15 kt. Seas 9 to 17 ft. 
Rain and snow.
.THU NIGHT...SE wind 15 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 8 to 16 ft. Rain and snow.
.FRI...S wind 30 to 45 kt. Seas 12 to 20 ft.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 16 to 27 ft.
.SAT...SW wind 30 to 45 kt. Seas 16 to 24 ft.
.SUN...W wind 10 to 25 kt. Seas 5 to 10 ft.
.MON...SE wind 10 to 25 kt. Seas 5 ft.

$$

PKZ412-021430-
Bering Sea Offshore 171W to 180 and North of 56N-
350 PM AKDT Wed Apr 1 2020

...GALE WARNING THURSDAY...

.TONIGHT...SW wind 15 to 30 kt. Seas 7 to 12 ft. Rain showers and
snow showers.
.THU...W wind 25 to 35 kt. Seas 8 to 16 ft.
.THU NIGHT...SW wind 15 to 30 kt. Seas 9 to 14 ft. Rain.
.FRI...S wind 25 to 40 kt. Seas 11 to 19 ft.
.FRI NIGHT...S wind 30 to 40 kt. Seas 15 to 23 ft.
.SAT...SW wind 25 to 40 kt. Seas 16 to 24 ft.
.SUN THROUGH MON...W wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-021430-
Bering Sea Offshore 171W to 180 and South of 56N-
350 PM AKDT Wed Apr 1 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 10 to 25 kt increasing to 20 to 30 kt after
midnight. Seas 5 to 10 ft.
.THU...SW wind 30 kt. Seas 9 to 14 ft.
.THU NIGHT...SW wind 20 to 35 kt becoming S 30 to 45 kt after
midnight. Seas 12 ft building to 11 to 18 ft after midnight. Rain.
.FRI...SW wind 35 to 50 kt. Seas 14 to 22 ft.
.FRI NIGHT...SW wind 35 to 45 kt. Seas 19 to 27 ft.
.SAT...SW wind 30 to 45 kt. Seas 13 to 27 ft.
.SUN THROUGH MON...SW wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ414-021430-
Bering Sea Offshore East of 171W-
350 PM AKDT Wed Apr 1 2020

.TONIGHT...W wind 10 to 25 kt. Seas 4 ft. Freezing spray.
.THU...SW wind 10 to 25 kt increasing to 20 to 30 kt in the
afternoon. Seas 4 to 9 ft. Freezing spray.
.THU NIGHT...W wind 25 kt becoming SW after midnight. Seas 6 to
11 ft. Freezing spray.
.FRI...SW wind 30 to 45 kt. Seas 9 to 14 ft.
.FRI NIGHT...SW wind 30 to 40 kt. Seas 9 to 17 ft.
.SAT...SW wind 25 to 35 kt. Seas 9 to 17 ft.
.SUN THROUGH MON...W wind 25 kt. Seas 6 to 11 ft.

$$

529 
FZAK62 PAFC 021154
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
354 AM AKDT Thu Apr 2 2020

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.

PKZ499-030030-
354 AM AKDT Thu Apr 2 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A weakening frontal boundary will cross the northern Bering
through Thu afternoon. A strengthening front associated with a
970 mb Kamchatka low will enter the western Aleutians Thu morning
and then cover the remainder of the Aleutians and Bering Sea by
Fri afternoon as the 986 mb parent low enters the western Bering.

$$

PKZ411-030030-
Bering Sea Offshore West of 180 and East of the International
Dateline-
354 AM AKDT Thu Apr 2 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...SW wind 15 to 30 kt. Seas 10 to 15 ft. Rain and snow.
.TONIGHT...S wind 20 to 35 kt. Seas 8 to 16 ft. Rain and snow.
.FRI...S wind 20 to 35 kt increasing to 30 to 45 kt in the
afternoon. Seas 12 to 20 ft. Rain.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 16 to 23 ft.
.SAT...W wind 25 to 40 kt. Seas 13 to 21 ft.
.SUN THROUGH MON...SW wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ412-030030-
Bering Sea Offshore 171W to 180 and North of 56N-
354 AM AKDT Thu Apr 2 2020

...GALE WARNING TODAY AND FRIDAY...

.TODAY...W wind 20 to 35 kt. Seas 9 to 14 ft.
.TONIGHT...S wind 15 to 30 kt. Seas 9 to 13 ft. Rain.
.FRI...S wind 25 to 40 kt. Seas 10 to 18 ft. Rain.
.FRI NIGHT...S wind 25 to 40 kt. Seas 15 to 22 ft.
.SAT...W wind 25 to 40 kt. Seas 17 to 22 ft.
.SUN...W wind 20 to 35 kt. Seas 9 to 14 ft.
.MON...W wind 10 to 20 kt. Seas 4 to 9 ft.

$$

PKZ413-030030-
Bering Sea Offshore 171W to 180 and South of 56N-
354 AM AKDT Thu Apr 2 2020

...STORM WARNING FRIDAY...

.TODAY...SW wind 30 kt. Seas 7 to 12 ft.
.TONIGHT...SW wind 25 to 40 kt. Seas 10 to 17 ft. Rain.
.FRI...SW wind 35 to 50 kt. Seas 15 to 22 ft. Rain.
.FRI NIGHT...SW wind 35 to 45 kt. Seas 17 to 22 ft.
.SAT...W wind 25 to 40 kt. Seas 14 to 22 ft.
.SUN THROUGH MON...W wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-030030-
Bering Sea Offshore East of 171W-
354 AM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY...

.TODAY...SW wind 10 to 25 kt increasing to 20 to 30 kt in the
afternoon. Seas 3 to 8 ft. Freezing spray.
.TONIGHT...W wind 25 kt becoming SW after midnight. Seas 5 to 10
ft.
.FRI...SW wind 20 to 35 kt increasing to 30 to 40 kt in the
afternoon. Seas 8 to 13 ft. Snow.
.FRI NIGHT...SW wind 30 to 40 kt. Seas 10 to 18 ft.
.SAT...SW wind 25 to 35 kt. Seas 12 to 20 ft.
.SUN...W wind 15 to 30 kt. Seas 7 to 12 ft.
.MON...NW wind 15 to 25 kt. Seas 6 to 11 ft.

$$

782 
FZAK62 PAFC 022345
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
345 PM AKDT Thu Apr 2 2020

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.

PKZ499-031300-
345 PM AKDT Thu Apr 2 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 981 mb low at 52N 165E tonight will move to 58N 172E at 990 mb
Friday afternoon. The low then moves to 64N 174W at 987 mb
Saturday afternoon. 

$$

PKZ411-031300-
Bering Sea Offshore West of 180 and East of the International
Dateline-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...S wind 20 to 35 kt. Seas 9 to 17 ft. Rain and snow.
.FRI...S wind 20 to 35 kt increasing to 30 to 45 kt in the
afternoon. Seas 12 to 20 ft. Rain.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 16 to 24 ft. Rain and snow.
.SAT...NW wind 25 to 40 kt. Seas 17 to 22 ft.
.SAT NIGHT...W wind 15 to 30 kt. Seas 12 to 19 ft.
.SUN THROUGH MON...SW wind 15 to 30 kt. Seas 6 to 11 ft.
.TUE...SE wind 10 to 20 kt. Seas 6 to 10 ft.

$$

PKZ412-031300-
Bering Sea Offshore 171W to 180 and North of 56N-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...S wind 15 to 30 kt. Seas 9 to 13 ft. Rain and snow.
.FRI...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain.
.FRI NIGHT...S wind 25 to 40 kt. Seas 16 to 22 ft. Rain and snow.
.SAT...W wind 25 to 40 kt. Seas 19 to 23 ft.
.SAT NIGHT...W wind 25 to 35 kt. Seas 18 to 21 ft.
.SUN...W wind 20 to 35 kt. Seas 9 to 14 ft.
.MON...W wind 10 to 20 kt. Seas 4 to 9 ft.
.TUE...S wind 15 kt. Seas 7 ft.

$$

PKZ413-031300-
Bering Sea Offshore 171W to 180 and South of 56N-
345 PM AKDT Thu Apr 2 2020

...STORM WARNING FRIDAY...

.TONIGHT...SW wind 25 to 40 kt. Seas 10 to 17 ft. Rain.
.FRI...SW wind 35 to 50 kt. Seas 15 to 23 ft. Rain.
.FRI NIGHT...SW wind 35 to 45 kt. Seas 18 to 23 ft.
.SAT...W wind 25 to 40 kt. Seas 18 to 23 ft.
.SAT NIGHT...W wind 15 to 30 kt. Seas 14 to 20 ft.
.SUN THROUGH MON...W wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...SE wind up to 20 kt. Seas 8 ft.

$$

PKZ414-031300-
Bering Sea Offshore East of 171W-
345 PM AKDT Thu Apr 2 2020

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind 25 kt becoming SW after midnight. Seas 5 to 10
ft.
.FRI...SW wind 20 to 35 kt increasing to 30 to 40 kt in the
afternoon. Seas 8 to 13 ft. Rain and snow.
.FRI NIGHT...SW wind 30 to 40 kt. Seas 10 to 18 ft.
.SAT...SW wind 35 kt. Seas 12 to 20 ft.
.SAT NIGHT...W wind 25 to 35 kt. Seas 13 to 21 ft.
.SUN...W wind 15 to 30 kt. Seas 7 to 12 ft.
.MON...NW wind 15 to 25 kt. Seas 6 to 11 ft.
.TUE...W wind up to 15 kt. Seas 3 to 7 ft.

$$

125 
FZAK62 PAFC 031150
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 AM AKDT Fri Apr 3 2020

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.

PKZ499-040145-
350 AM AKDT Fri Apr 3 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 978 mb low at 51N 165E will move to 59N 178E at 989 mb Sat
morning then moves into the Bering Strait by Sun morning. 

$$

PKZ411-040145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 20 to 35 kt increasing to 30 to 45 kt in the
afternoon. Seas 12 to 20 ft. Rain.
.TONIGHT...SW wind 30 to 45 kt. Seas 16 to 23 ft. Rain and snow.
.SAT...NW wind 25 to 40 kt. Seas 17 to 23 ft.
.SAT NIGHT...W wind 20 to 35 kt. Seas 12 to 20 ft.
.SUN...W wind 10 to 25 kt. Seas 8 to 13 ft.
.MON...SW wind 10 to 20 kt. Seas 4 to 9 ft.
.TUE...SE wind 10 to 25 kt. Seas 6 to 10 ft.

$$

PKZ412-040145-
Bering Sea Offshore 171W to 180 and North of 56N-
350 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain.
.TONIGHT...S wind 25 to 40 kt. Seas 16 to 22 ft. Rain and snow.
.SAT...W wind 25 to 40 kt. Seas 19 to 24 ft.
.SAT NIGHT...W wind 35 kt. Seas 18 to 23 ft.
.SUN...W wind 15 to 30 kt. Seas 10 to 18 ft.
.MON...W wind 10 to 20 kt. Seas 4 to 9 ft.
.TUE...S wind 15 kt. Seas 7 ft.

$$

PKZ413-040145-
Bering Sea Offshore 171W to 180 and South of 56N-
350 AM AKDT Fri Apr 3 2020

...STORM WARNING TODAY...

.TODAY...SW wind 35 to 50 kt. Seas 15 to 23 ft. Rain.
.TONIGHT...SW wind 35 to 45 kt. Seas 18 to 23 ft.
.SAT...W wind 25 to 40 kt. Seas 18 to 24 ft.
.SAT NIGHT...W wind 20 to 30 kt. Seas 14 to 21 ft.
.SUN...W wind 15 to 25 kt. Seas 9 to 17 ft.
.MON...W wind 10 to 20 kt. Seas 5 to 10 ft.
.TUE...S wind 10 to 20 kt. Seas 8 ft.

$$

PKZ414-040145-
Bering Sea Offshore East of 171W-
350 AM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW wind 20 to 35 kt increasing to 30 to 40 kt in the
afternoon. Seas 9 to 14 ft. Rain and snow.
.TONIGHT...SW wind 30 to 40 kt. Seas 10 to 18 ft.
.SAT...SW wind 35 kt. Seas 12 to 20 ft.
.SAT NIGHT...W wind 25 to 35 kt. Seas 14 to 22 ft.
.SUN THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 11 ft.

$$

323 
FZAK62 PAFC 032331
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
331 PM AKDT Fri Apr 3 2020

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.

PKZ499-041315-
331 PM AKDT Fri Apr 3 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 988 mb low at 58N 172E this afternoon will move to 64N 174W at
987 mb Saturday afternoon. A front will enter the western Bering
Sunday morning and move into the central Bering Sunday afternoon.

$$

PKZ411-041315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
331 PM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...SW wind 25 to 40 kt becoming NW. Seas 16 to 23 ft. Rain.
.SAT...NW wind 25 to 40 kt becoming W in the afternoon. Seas 17 to
21 ft.
.SAT NIGHT...W wind 15 to 30 kt. Seas 11 to 19 ft. Freezing spray.
.SUN...W wind 10 to 25 kt. Seas 8 to 13 ft.
.SUN NIGHT...NW wind 10 to 20 kt. Seas 6 to 9 ft.
.MON...SW wind up to 20 kt. Seas 4 to 9 ft.
.TUE THROUGH WED...E wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ412-041315-
Bering Sea Offshore 171W to 180 and North of 56N-
331 PM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 30 to 40 kt. Seas 16 to 21 ft. Rain showers.
.SAT...S wind 25 to 40 kt becoming W. Seas 19 to 25 ft.
.SAT NIGHT...W wind 35 kt. Seas 17 to 24 ft. Freezing spray.
.SUN...W wind 15 to 30 kt. Seas 11 to 18 ft.
.SUN NIGHT...W wind 10 to 20 kt. Seas 8 to 13 ft.
.MON...W wind 10 to 20 kt. Seas 4 to 9 ft.
.TUE...S wind 15 kt. Seas 7 ft.
.WED...SE wind 15 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-041315-
Bering Sea Offshore 171W to 180 and South of 56N-
331 PM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...S wind 40 kt. Seas 17 to 23 ft.
.SAT...S wind 25 to 40 kt becoming W. Seas 18 to 24 ft.
.SAT NIGHT...W wind 15 to 30 kt. Seas 13 to 21 ft.
.SUN...W wind 10 to 25 kt. Seas 9 to 15 ft.
.SUN NIGHT...W wind 20 kt. Seas 8 to 11 ft.
.MON...NW wind 10 to 20 kt. Seas 4 to 9 ft.
.TUE...S wind 10 to 20 kt. Seas 8 ft.
.WED...SE wind 15 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-041315-
Bering Sea Offshore East of 171W-
331 PM AKDT Fri Apr 3 2020

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 10 to 18 ft.
.SAT...SW wind 35 kt. Seas 12 to 20 ft.
.SAT NIGHT...W wind 20 to 35 kt. Seas 13 to 21 ft. Freezing spray.
.SUN...W wind 15 to 30 kt. Seas 9 to 16 ft.
.SUN NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.MON THROUGH TUE...W wind up to 20 kt. Seas 4 to 9 ft.
.WED...SE wind up to 20 kt. Seas 3 to 7 ft.

$$

038 
FZAK62 PAFC 041200
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
400 AM AKDT Sat Apr 4 2020

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.

PKZ499-050045-
400 AM AKDT Sat Apr 4 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 988 mb low at 58N 178E will move ashore near 64N 167W at 983 mb
Sun morning. A 1017 mb low develops near 56W 179E Sun evening then
moves to 57N 174W at 1013 mb Mon morning.

$$

PKZ411-050045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
400 AM AKDT Sat Apr 4 2020

...GALE WARNING TODAY...

.TODAY...NW wind 25 to 40 kt becoming W in the afternoon. Seas 17
to 23 ft.
.TONIGHT...W wind 15 to 30 kt. Seas 11 to 19 ft. Freezing spray.
.SUN...W wind 10 to 25 kt. Seas 8 to 13 ft. Freezing spray.
.SUN NIGHT...NW wind 15 to 25 kt. Seas 6 to 9 ft.
.MON...W wind up to 20 kt. Seas 4 to 8 ft.
.TUE...SE wind 10 to 25 kt. Seas 5 to 10 ft.
.WED...E wind 25 kt. Seas 8 to 11 ft.

$$

PKZ412-050045-
Bering Sea Offshore 171W to 180 and North of 56N-
400 AM AKDT Sat Apr 4 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 25 to 40 kt. Seas 19 to 24 ft.
.TONIGHT...W wind 35 kt. Seas 18 to 24 ft. Freezing spray.
.SUN...W wind 15 to 30 kt. Seas 11 to 19 ft. Freezing spray.
.SUN NIGHT...W wind up to 20 kt. Seas 8 to 13 ft.
.MON...NW wind up to 20 kt. Seas 4 to 8 ft.
.TUE...SW wind up to 20 kt. Seas 5 to 8 ft.
.WED...SE wind 15 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-050045-
Bering Sea Offshore 171W to 180 and South of 56N-
400 AM AKDT Sat Apr 4 2020

...GALE WARNING TODAY...

.TODAY...W wind 25 to 40 kt. Seas 19 to 24 ft.
.TONIGHT...W wind 15 to 30 kt. Seas 13 to 21 ft.
.SUN...W wind 10 to 25 kt. Seas 10 to 15 ft.
.SUN NIGHT...W wind 10 to 25 kt. Seas 8 to 11 ft.
.MON...NW wind 10 to 25 kt. Seas 6 to 11 ft.
.TUE...S wind 10 to 25 kt. Seas 5 to 9 ft.
.WED...SE wind 20 to 30 kt. Seas 7 to 12 ft.

$$

PKZ414-050045-
Bering Sea Offshore East of 171W-
400 AM AKDT Sat Apr 4 2020

...HEAVY FREEZING SPRAY WARNING TONIGHT...
...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 35 kt. Seas 13 to 21 ft.
.TONIGHT...W wind 20 to 35 kt. Seas 13 to 21 ft. Heavy freezing 
spray north of 58N.
.SUN...W wind 15 to 30 kt. Seas 9 to 17 ft. Freezing spray.
.SUN NIGHT...W wind 10 to 25 kt. Seas 7 to 12 ft.
.MON...SW wind 10 to 25 kt. Seas 4 to 9 ft.
.TUE...NW wind 10 to 25 kt. Seas 4 to 9 ft.
.WED...S wind 10 to 20 kt. Seas 3 to 7 ft.

$$

471 
FZAK62 PAFC 042343
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
343 PM AKDT Sat Apr 4 2020

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.

PKZ499-051300-
343 PM AKDT Sat Apr 4 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 985 mb low at 63N 175W moves into the Northern Bering Sea Sun. A 
low moves to 57N 170W at 1015 mb Mon afternoon. High pressure builds
across the western Aleutians and Bering Mon afternoon.

$$

PKZ411-051300-
Bering Sea Offshore West of 180 and East of the International
Dateline-
343 PM AKDT Sat Apr 4 2020

.TONIGHT...W wind 15 to 30 kt. Seas 11 to 19 ft. Freezing spray.
.SUN...SW wind 10 to 25 kt. Seas 9 to 14 ft. Freezing spray.
.SUN NIGHT...NW wind 10 to 25 kt. Seas 6 to 9 ft. Freezing spray.
.MON...NW wind up to 20 kt. Seas 5 to 8 ft.
.MON NIGHT...W wind up to 20 kt. Seas 5 ft.
.TUE...S wind 10 to 25 kt. Seas 4 to 9 ft.
.WED THROUGH THU...E wind 25 kt. Seas 7 to 11 ft.

$$

PKZ412-051300-
Bering Sea Offshore 171W to 180 and North of 56N-
343 PM AKDT Sat Apr 4 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 30 to 40 kt. Seas 18 to 24 ft. Freezing spray.
.SUN...W wind 15 to 30 kt. Seas 11 to 19 ft. Freezing spray.
.SUN NIGHT...SW wind 10 to 25 kt. Seas 9 to 14 ft. Freezing spray.
.MON...NW wind 10 to 25 kt. Seas 5 to 10 ft.
.MON NIGHT...NW wind up to 20 kt. Seas 5 to 8 ft.
.TUE...SW wind up to 20 kt. Seas 5 to 8 ft.
.WED THROUGH THU...SE wind 15 to 25 kt. Seas 7 to 12 ft.

$$

PKZ413-051300-
Bering Sea Offshore 171W to 180 and South of 56N-
343 PM AKDT Sat Apr 4 2020

.TONIGHT...W wind 15 to 30 kt. Seas 13 to 21 ft.
.SUN...W wind 10 to 25 kt becoming 15 kt in the afternoon. Seas 9
to 16 ft.
.SUN NIGHT...SW wind 10 to 25 kt. Seas 8 to 11 ft.
.MON...NW wind 10 to 25 kt. Seas 7 to 11 ft.
.MON NIGHT...NW wind 10 to 20 kt. Seas 6 to 10 ft.
.TUE...SW wind 10 to 25 kt. Seas 4 to 9 ft.
.WED THROUGH THU...SE wind 20 to 30 kt. Seas 7 to 12 ft.

$$

PKZ414-051300-
Bering Sea Offshore East of 171W-
343 PM AKDT Sat Apr 4 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 25 to 35 kt. Seas 14 to 22 ft. Freezing spray.
.SUN...W wind 15 to 30 kt. Seas 10 to 16 ft. Freezing spray.
.SUN NIGHT...W wind 10 to 25 kt. Seas 7 to 12 ft. Freezing spray.
.MON...S wind 10 to 25 kt. Seas 5 to 10 ft.
.MON NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.TUE...W wind up to 20 kt. Seas 4 to 9 ft.
.WED...S wind 10 to 20 kt. Seas 3 to 7 ft.
.THU...SE wind 20 kt. Seas 7 to 11 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
453 AM AKDT Tue Mar 31 2020

.ANALYSIS AND UPPER LEVELS...

Mainland Alaska is dominated by an upper level high that is
keeping weather rather quiet. A weak surface low southwest of Cold
Bay is bringing some rain to the eastern Aleutians, while the
Alaska Peninsula and coastal southwestern Alaska are seeing a bit
of light snow.

&&

.MODEL DISCUSSION...

Models continue their agreement with the track of a triple point
low bringing it ashore near Cape Newenham Wednesday along with
the front hanging up west of the Alaska and Aleutian Ranges
Wednesday night. Models still in agreement with storm system
tracking across the western Bering on Wednesday. Models agreeing on
an area of precipitation activity setting up in southwest Alaska Thursday
on the northern edge of a persistent upper level ridge over the western
Gulf of Alaska.

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.AVIATION...
PANC...VFR conditions and light winds will persist.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
An upper level high over southwest Alaska this morning will move
east into Southcentral today, bringing sunny skies and continued
cool temperatures to the area. The surface gradient has weakened
considerably, and winds will be fairly light. The ridge will stall
over Southcentral tonight through Wednesday night, with the axis
settling in just east of 150 degrees west longitude. This will
open up southwesterly flow aloft, bringing some moisture into the
area. Clouds will increase, and some precipitation is possible
from the ridge axis westward by later Wednesday through Wednesday
night.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today
through Friday morning)...

A weakening front will continue pushing to the east slowly this
morning with a few snow showers associated with it. Any activity
in the low elevations will dissipate by the mid to late morning
hours with snow showers continuing across the Kilbuck Mountains
into the afternoon hours.

The main story will be a new low forming along this front south
of Cold Bay this morning. This low is expected to track northward
towards Cape Newenham Wednesday morning, then north into the
Kuskokwim Delta and western Alaska. The exact track of this low
will still determine the precipitation types for the Bristol Bay
region for this event. Model guidance has come into better
agreement that this low will track over Cape Newenham, though, any
wobble in the track east will allow for more snowfall to occur in
the Dillingham area with less snow and more mixing or even a
change to rain if the low tracks slightly farther west. The
wobble to the west is looking less likely. Therefore, kept the
forecast leaning towards Dillingham remaining mostly snow for this
event. No changes were made to the snowfall forecast as the low
position still hasn't really changed from the morning package.
Until this low starts moving northward, the exact track will mean
everything as to the precipitation type and how much downsloping
occurs around Iliamna and King Salmon. It appears that Iliamna and
the Aniak to Sleetmute areas will remain all snow for this event.
King Salmon will have enough warm air push in to change to all
rain Wednesday morning through early Thursday before changing back
to snow as colder air comes back in.

Another low will move northeast towards western Alaska with a
front extending to the south that will bring another round of
precipitation to the region in the form of snow Thursday afternoon
to Friday morning for the Kuskokwim Delta.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Today
through Friday morning)...

A dissipating front over the eastern Bering will continue moving
onshore in Southwest Alaska this morning. A low south of Cold Bay
this morning will lift northward to near Cape Newenham Wednesday
morning, then into mainland Alaska. Impacts from this low will
primarily be felt over Southwest Alaska.

A low will move over the northern Bering on Thursday morning,
with some potential for areas of gale force winds across the
waters around Saint Matthew Island. This low will send a front
across the northern Bering and into Southwest Alaska Thursday
afternoon. Behind this front, another surge of cold air is
expected that will bring gusty winds to the northern Bering.

A much stronger front moves into the western Aleutians during the
day on Thursday. Gale force winds and high seas are possible with
this feature, as well as a good push of warm air.

&&

.MARINE (Days 3 through 5/Wednesday through Friday)...

Bering Sea and Aleutians...
On Wednesday, there is better model agreement today with the
front entering the northwestern Bering. Winds are forecasted below
gale force at this time, but there will likely be gale force
winds and widespread precipitation accompanying this system that
is showing a stronger signal than yesterday's model runs. Thus,
confidence is improving in the track and intensity of this low.
Impacts of this in the eastern Bering are minimal as the front is
expected to dissipate before reaching that area through Thursday.

Gulf of Alaska...
There is a chance of small craft southeasterly winds across the
western Gulf on Wednesday associated with a low over Bristol Bay.
Confidence in these small craft winds is low as there are
significant differences in solutions for the low track and
intensity. For Thursday there is low confidence in the wind
forecast, though the weather pattern is expected to remain benign.

&&

.LONG TERM FORECAST (Days 3 through 7/Wednesday through
Sunday)...

Guidance is consistent with an upper level ridge extending across
the Alaskan mainland on Wednesday as an upper trough is present
over the Bering/Aleutians. Due to this, temperatures will be
warmer with a benign weather pattern over the Alaskan mainland and
cooler with a more active weather pattern over the Bering/Aleutians.
Uncertainty increases into Thursday as guidance shows a higher
degree of variation in solutions with upper level synoptic features
which will affect the placement and intensity of surface synoptic
features. The only area of consistency is the upper level ridging
will continue over the eastern Alaskan mainland near the AlCan
border and thus, expect warm temperatures and quiet weather for
that region. Very low forecast confidence exists overall Friday
through Sunday as major differences in upper level synoptic
features exist between guidance which is causing significant
differences in the placement of surface features causing a high
degree of uncertainty in the forecast.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale 178.
         Heavy Freezing Spray 160.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...LTB
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MV
MARINE/LONG TERM...SEB