Gale Warning 418, NWS Anchorage, AK

498 
FZAK62 PAFC 262350
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 PM AKDT Wed Aug 26 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.

PKZ499-271415-
350 PM AKDT Wed Aug 26 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1004 mb low at 58N 163W moves southeast before crossing the
Alaska Peninsula Thu afternoon. A 998 mb low at 52N 162E moves to
52N 171E at 992 mb Thu afternoon and then moves to 50N 179E at 988
mb Fri afternoon.

$$

PKZ411-271415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 PM AKDT Wed Aug 26 2020

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

.TONIGHT...S wind up to 20 kt becoming SE 15 to 30 kt after
midnight. Seas 3 to 6 ft. Patchy fog.
.THU...E wind 20 to 35 kt. Seas 5 to 10 ft. Rain.
.THU NIGHT...E wind 20 to 35 kt. Seas 8 to 13 ft. Rain.
.FRI...E wind 30 kt. Seas 8 to 12 ft.
.FRI NIGHT...NE wind 30 kt. Seas 10 ft.
.SAT...NE wind 25 to 35 kt. Seas 10 to 13 ft.
.SUN...N wind 20 to 30 kt. Seas 9 to 12 ft.
.MON...W wind 10 to 20 kt. Seas 9 ft.

$$

PKZ412-271415-
Bering Sea Offshore 171W to 180 and North of 56N-
350 PM AKDT Wed Aug 26 2020

.TONIGHT...NW wind up to 15 kt. Seas 5 ft. Patchy fog.
.THU...SE wind up to 15 kt. Seas 4 ft.
.THU NIGHT...E wind 10 to 25 kt. Seas 3 to 6 ft.
.FRI...E wind 15 to 30 kt. Seas 3 to 8 ft.
.FRI NIGHT...E wind 20 to 30 kt. Seas 6 to 11 ft.
.SAT...NE wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN...N wind 25 to 35 kt. Seas 9 to 12 ft.
.MON...NW wind 15 to 30 kt. Seas 10 ft.

$$

PKZ413-271415-
Bering Sea Offshore 171W to 180 and South of 56N-
350 PM AKDT Wed Aug 26 2020

.TONIGHT...W wind 10 to 15 kt becoming SE 10 to 20 kt after midnight.
Seas 5 ft. Patchy fog.
.THU...SE wind 10 to 25 kt. Seas 5 ft.
.THU NIGHT...E wind 15 to 30 kt. Seas 4 to 8 ft.
.FRI...E wind 25 to 35 kt. Seas 6 to 11 ft.
.FRI NIGHT...E wind 20 to 35 kt. Seas 10 to 14 ft.
.SAT...E wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN THROUGH MON...W wind 15 to 30 kt. Seas 7 to 12 ft.

$$

PKZ414-271415-
Bering Sea Offshore East of 171W-
350 PM AKDT Wed Aug 26 2020

.TONIGHT...NW wind 10 to 20 kt. Seas 6 ft.
.THU...NW wind up to 15 kt. Seas 5 ft. Patchy fog.
.THU NIGHT...NE wind 10 kt becoming SE 10 to 20 kt after midnight. 
Seas 4 ft. Patchy fog.
.FRI...E wind 15 to 30 kt. Seas 3 to 6 ft.
.FRI NIGHT...E wind 15 to 30 kt. Seas 4 to 9 ft.
.SAT...E wind 15 to 30 kt. Seas 6 to 10 ft.
.SUN...SW wind 25 to 40 kt. Seas 5 to 8 ft.
.MON...W wind 20 to 30 kt. Seas 7 to 10 ft.

$$

069 
FZAK62 PAFC 271140
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
340 AM AKDT Thu Aug 27 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.

PKZ499-280045-
340 AM AKDT Thu Aug 27 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 992 mb low at 53N 168E moves to 52N 175E Fri morning, then 
moves to 52N 179E by Fri evening. Its associated front tracks
across the Aleutians through Fri. 

$$

PKZ411-280045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
340 AM AKDT Thu Aug 27 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 20 to 35 kt. Seas 5 to 10 ft. Rain.
.TONIGHT...E wind 20 to 35 kt. Seas 8 to 13 ft. Rain.
.FRI...E wind 30 kt. Seas 8 to 12 ft. Rain.
.FRI NIGHT...NE wind 30 kt. Seas 10 ft.
.SAT...NE wind 30 kt. Seas 10 to 15 ft.
.SUN...N wind 20 to 30 kt. Seas 10 to 15 ft.
.MON...W wind 10 to 20 kt. Seas 8 to 12 ft.

$$

PKZ412-280045-
Bering Sea Offshore 171W to 180 and North of 56N-
340 AM AKDT Thu Aug 27 2020

.TODAY...SE wind up to 15 kt. Seas 4 ft.
.TONIGHT...E wind 10 to 25 kt. Seas 3 to 6 ft.
.FRI...E wind 15 to 30 kt. Seas 3 to 8 ft.
.FRI NIGHT...E wind 20 to 30 kt. Seas 6 to 11 ft.
.SAT...NE wind 20 to 30 kt. Seas 8 to 13 ft.
.SUN...N wind 25 to 35 kt. Seas 9 to 17 ft.
.MON...NW wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ413-280045-
Bering Sea Offshore 171W to 180 and South of 56N-
340 AM AKDT Thu Aug 27 2020

...GALE WARNING FRIDAY...

.TODAY...SE wind 10 to 25 kt. Seas 5 ft.
.TONIGHT...E wind 15 to 30 kt. Seas 4 to 8 ft.
.FRI...E wind 25 to 35 kt. Seas 6 to 11 ft. Rain.
.FRI NIGHT...E wind 20 to 35 kt. Seas 10 to 14 ft.
.SAT...NE wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN THROUGH MON...W wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ414-280045-
Bering Sea Offshore East of 171W-
340 AM AKDT Thu Aug 27 2020

.TODAY...NW wind up to 15 kt. Seas 5 ft. Patchy fog.
.TONIGHT...NE wind 10 to 20 kt. Seas 4 ft. Patchy fog.
.FRI...E wind 15 to 30 kt. Seas 3 to 6 ft.
.FRI NIGHT...E wind 15 to 30 kt. Seas 4 to 9 ft.
.SAT...E wind 15 to 30 kt. Seas 6 to 10 ft.
.SUN...S wind 25 to 40 kt. Seas 7 to 11 ft.
.MON...W wind 20 to 30 kt. Seas 8 to 11 ft.

$$

590 
FZAK62 PAFC 272335
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
335 PM AKDT Thu Aug 27 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.

PKZ499-281445-
335 PM AKDT Thu Aug 27 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 990 mb low at 52N 173E moves to 51N 179E at 986 mb Fri afternoon
and then remains nearly stationary through Sat afternoon.

$$

PKZ411-281445-
Bering Sea Offshore West of 180 and East of the International
Dateline-
335 PM AKDT Thu Aug 27 2020

...GALE WARNING TONIGHT...

.TONIGHT...E wind 20 to 35 kt. Seas 8 to 13 ft. Rain.
.FRI...E wind 30 kt. Seas 10 to 14 ft. Rain.
.FRI NIGHT...NE wind 20 to 30 kt. Seas 11 to 15 ft. Rain.
.SAT...NE wind 20 to 35 kt. Seas 12 to 16 ft.
.SAT NIGHT...NE wind 25 to 35 kt. Seas 13 to 16 ft.
.SUN...N wind 20 to 30 kt. Seas 10 to 15 ft.
.MON THROUGH TUE...W wind 10 to 20 kt. Seas 7 to 12 ft.

$$

PKZ412-281445-
Bering Sea Offshore 171W to 180 and North of 56N-
335 PM AKDT Thu Aug 27 2020

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...E wind 10 to 25 kt. Seas 3 to 6 ft.
.FRI...E wind 15 to 30 kt. Seas 5 to 10 ft.
.FRI NIGHT...E wind 25 to 35 kt. Seas 9 to 14 ft.
.SAT...NE wind 20 to 35 kt. Seas 10 to 15 ft.
.SAT NIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN...N wind 20 to 35 kt. Seas 8 to 16 ft.
.MON THROUGH TUE...W wind 15 to 25 kt. Seas 8 to 13 ft.

$$

PKZ413-281445-
Bering Sea Offshore 171W to 180 and South of 56N-
335 PM AKDT Thu Aug 27 2020

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

.TONIGHT...E wind 15 to 30 kt. Seas 4 to 9 ft.
.FRI...E wind 25 to 35 kt. Seas 8 to 13 ft. Rain.
.FRI NIGHT...E wind 20 to 35 kt. Seas 9 to 14 ft. 
Widespread rain showers.
.SAT...E wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...E wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...N wind 15 to 30 kt. Seas 8 to 13 ft.
.MON THROUGH TUE...W wind 20 kt. Seas 8 to 13 ft.

$$

PKZ414-281445-
Bering Sea Offshore East of 171W-
335 PM AKDT Thu Aug 27 2020

.TONIGHT...Variable wind 10 kt this evening becoming E 10 to 20 kt. 
Seas 4 ft. Patchy fog.
.FRI...E wind 15 to 30 kt. Seas 3 to 8 ft.
.FRI NIGHT...E wind 15 to 30 kt. Seas 5 to 10 ft. Widespread rain
showers.
.SAT...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.SAT NIGHT...SE wind 10 to 25 kt. Seas 4 to 9 ft.
.SUN...W wind up to 20 kt. Seas 5 to 10 ft.
.MON THROUGH TUE...W wind 25 kt. Seas 7 to 11 ft.

$$

932 
FZAK62 PAFC 281149
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
349 AM AKDT Fri Aug 28 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.

PKZ499-290115-
349 AM AKDT Fri Aug 28 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 985 mb low at 52N 176E moves to 53N 178W at 982 mb Sat 
morning and remains nearly stationary through Sat afternoon. It 
merges with a 966 mb low at 53N 168W by Sun morning.

$$

PKZ411-290115-
Bering Sea Offshore West of 180 and East of the International
Dateline-
349 AM AKDT Fri Aug 28 2020

...GALE WARNING SATURDAY...

.TODAY...E wind 30 kt. Seas 10 to 14 ft. Rain.
.TONIGHT...NE wind 20 to 30 kt. Seas 11 to 15 ft. Rain.
.SAT...NE wind 20 to 35 kt. Seas 12 to 16 ft.
.SAT NIGHT...NE wind 25 to 35 kt. Seas 12 to 16 ft.
.SUN...N wind 15 to 30 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...W wind 10 to 20 kt. Seas 4 to 9 ft.

$$

PKZ412-290115-
Bering Sea Offshore 171W to 180 and North of 56N-
349 AM AKDT Fri Aug 28 2020

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...E wind 15 to 30 kt. Seas 5 to 10 ft.
.TONIGHT...E wind 25 to 35 kt. Seas 9 to 14 ft.
.SAT...NE wind 20 to 35 kt. Seas 10 to 15 ft.
.SAT NIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN...N wind 15 to 30 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...W wind 15 to 25 kt. Seas 6 to 11 ft.

$$

PKZ413-290115-
Bering Sea Offshore 171W to 180 and South of 56N-
349 AM AKDT Fri Aug 28 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 25 to 35 kt. Seas 8 to 13 ft. Rain.
.TONIGHT...E wind 20 to 35 kt. Seas 9 to 14 ft. 
Widespread rain showers.
.SAT...E wind 15 to 30 kt. Seas 8 to 13 ft. Rain.
.SAT NIGHT...E wind 15 to 30 kt. Seas 6 to 11 ft.
.SUN THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ414-290115-
Bering Sea Offshore East of 171W-
349 AM AKDT Fri Aug 28 2020

.TODAY...E wind 15 to 30 kt. Seas 3 to 8 ft.
.TONIGHT...E wind 15 to 30 kt. Seas 5 to 10 ft. 
Widespread rain showers.
.SAT...SE wind 15 to 30 kt. Seas 6 to 11 ft. Rain.
.SAT NIGHT...SE wind 10 to 25 kt. Seas 5 to 9 ft.
.SUN THROUGH TUE...W wind 15 to 30 kt. Seas 5 to 10 ft.

$$

230 
FZAK62 PAFC 282344
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
344 PM AKDT Fri Aug 28 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.

PKZ499-291315-
344 PM AKDT Fri Aug 28 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 984 mb low at 51N 179E moves to 53N 179W at 980 mb by Sat
afternoon. It merges with a 968 mb low at 53N 168W by Sun 
morning and then moves inland near 59N 160W at 967 mb by Sun
afternoon.

$$

PKZ411-291315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
344 PM AKDT Fri Aug 28 2020

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 25 to 35 kt. Seas 12 to 15 ft.
.SAT...NE wind 20 to 35 kt. Seas 12 to 17 ft.
.SAT NIGHT...NE wind 25 to 35 kt. Seas 12 to 17 ft.
.SUN...N wind 25 to 35 kt. Seas 13 to 16 ft.
.SUN NIGHT...N wind 15 to 25 kt. Seas 9 to 13 ft.
.MON THROUGH WED...W wind 10 to 20 kt. Seas 4 to 9 ft.

$$

PKZ412-291315-
Bering Sea Offshore 171W to 180 and North of 56N-
344 PM AKDT Fri Aug 28 2020

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt. Seas 9 to 17 ft.
.SAT...NE wind 20 to 35 kt. Seas 10 to 17 ft. Rain.
.SAT NIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft. Rain.
.SUN...N wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN NIGHT...N wind 20 to 30 kt. Seas 9 to 12 ft.
.MON THROUGH WED...W wind 15 to 25 kt. Seas 6 to 11 ft.

$$

PKZ413-291315-
Bering Sea Offshore 171W to 180 and South of 56N-
344 PM AKDT Fri Aug 28 2020

...GALE WARNING TONIGHT...

.TONIGHT...E wind 25 to 40 kt. Seas 8 to 16 ft. Rain.
.SAT...E wind 10 to 25 kt. Seas 8 to 13 ft. Rain.
.SAT NIGHT...E wind 10 to 25 kt. Seas 6 to 10 ft. Rain.
.SUN...N wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN NIGHT...NW wind 15 to 25 kt. Seas 7 to 11 ft.
.MON THROUGH WED...W wind 20 kt. Seas 5 to 9 ft.

$$

PKZ414-291315-
Bering Sea Offshore East of 171W-
344 PM AKDT Fri Aug 28 2020

...GALE WARNING TONIGHT...

.TONIGHT...E wind 20 to 35 kt. Seas 6 to 11 ft. Rain.
.SAT...SE wind 15 to 30 kt. Seas 6 to 11 ft. Rain.
.SAT NIGHT...SE wind 10 to 25 kt. Seas 5 to 9 ft. Rain.
.SUN...N wind 25 to 40 kt. Seas 6 to 10 ft.
.SUN NIGHT...W wind 20 to 35 kt. Seas 7 to 10 ft.
.MON THROUGH WED...W wind 15 to 25 kt. Seas 5 to 10 ft.

$$

511 
FZAK62 PAFC 291149
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
349 AM AKDT Sat Aug 29 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.

PKZ499-300130-
349 AM AKDT Sat Aug 29 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 982 mb low at 53N 179W deepens to 978 mb by Sun morning and 
remains nearly stationary. It merges with a 968 mb low at 53N 168W
by Sun morning and then moves inland near 59N 160W at 965 mb by 
Sun afternoon.

$$

PKZ411-300130-
Bering Sea Offshore West of 180 and East of the International
Dateline-
349 AM AKDT Sat Aug 29 2020

...GALE WARNING THROUGH SUNDAY...

.TODAY...NE wind 20 to 35 kt. Seas 12 to 17 ft.
.TONIGHT...NE wind 25 to 35 kt. Seas 12 to 17 ft.
.SUN...N wind 25 to 35 kt. Seas 15 ft.
.SUN NIGHT...N wind 15 to 25 kt. Seas 9 to 13 ft.
.MON THROUGH WED...W wind up to 20 kt. Seas 5 to 10 ft.

$$

PKZ412-300130-
Bering Sea Offshore 171W to 180 and North of 56N-
349 AM AKDT Sat Aug 29 2020

...GALE WARNING THROUGH SUNDAY...

.TODAY...NE wind 20 to 35 kt. Seas 10 to 17 ft. Rain.
.TONIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft. Rain.
.SUN...N wind 20 to 35 kt. Seas 8 to 13 ft.
.SUN NIGHT...N wind 20 to 30 kt. Seas 9 to 12 ft.
.MON THROUGH WED...W wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ413-300130-
Bering Sea Offshore 171W to 180 and South of 56N-
349 AM AKDT Sat Aug 29 2020

.TODAY...E wind 10 to 25 kt. Seas 8 to 13 ft. Rain.
.TONIGHT...E wind 10 to 25 kt. Seas 6 to 10 ft. Rain.
.SUN...N wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN NIGHT...NW wind 15 to 25 kt. Seas 7 to 11 ft.
.MON THROUGH WED...SW wind 10 to 20 kt. Seas 5 to 10 ft.

$$

PKZ414-300130-
Bering Sea Offshore East of 171W-
349 AM AKDT Sat Aug 29 2020

...GALE WARNING SUNDAY...

.TODAY...SE wind 15 to 30 kt. Seas 6 to 11 ft. Rain.
.TONIGHT...SE wind 10 to 25 kt. Seas 5 to 9 ft. Rain.
.SUN...NE wind 20 to 35 kt becoming NW 25 to 40 kt in the
afternoon.
Seas 6 to 10 ft. Rain.
.SUN NIGHT...W wind 20 to 35 kt. Seas 7 to 10 ft.
.MON THROUGH WED...W wind 10 to 25 kt. Seas 5 to 10 ft.

$$

406 
FZAK62 PAFC 292349
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
349 PM AKDT Sat Aug 29 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.

PKZ499-301315-
349 PM AKDT Sat Aug 29 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 981 mb low at 52N 179W and a 980 mb North Pacific low at 47N
178W Sat afternoon merge near 53N 169W at 968 mb by Sun morning.
This low then moves inland near 59N 161W at 964 mb by Sun
afternoon. The associated front weakens across the central Bering
through Mon afternoon.

$$

PKZ411-301315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
349 PM AKDT Sat Aug 29 2020

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...NE wind 25 to 35 kt. Seas 13 to 17 ft.
.SUN...N wind 25 to 35 kt. Seas 14 ft.
.SUN NIGHT...N wind 25 kt. Seas 11 ft.
.MON...NW wind 10 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...W wind 10 to 20 kt. Seas 6 to 9 ft.
.TUE THROUGH WED...W wind up to 20 kt. Seas 4 to 8 ft.
.THU...N wind up to 20 kt. Seas 4 to 9 ft.

$$

PKZ412-301315-
Bering Sea Offshore 171W to 180 and North of 56N-
349 PM AKDT Sat Aug 29 2020

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN...N wind 20 to 35 kt. Seas 8 to 13 ft.
.SUN NIGHT...N wind 20 to 30 kt. Seas 11 ft.
.MON...NW wind 15 to 25 kt. Seas 9 to 12 ft.
.MON NIGHT...NW wind 10 to 20 kt. Seas 7 to 10 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 5 to 9 ft.
.THU...NE wind up to 15 kt. Seas 4 ft.

$$

PKZ413-301315-
Bering Sea Offshore 171W to 180 and South of 56N-
349 PM AKDT Sat Aug 29 2020

.TONIGHT...E wind 10 to 25 kt. Seas 6 to 10 ft. Rain.
.SUN...N wind 10 to 25 kt. Seas 7 to 12 ft.
.SUN NIGHT...NW wind 15 to 25 kt. Seas 6 to 11 ft.
.MON...NW wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 10 to 20 kt. Seas 7 to 10 ft.
.TUE THROUGH WED...SW wind 10 to 20 kt. Seas 5 to 10 ft.
.THU...S wind up to 15 kt. Seas 3 to 7 ft.

$$

PKZ414-301315-
Bering Sea Offshore East of 171W-
349 PM AKDT Sat Aug 29 2020

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SE wind 10 to 25 kt. Seas 5 to 8 ft.
.SUN...NE wind 20 to 35 kt becoming NW 25 to 40 kt in the
afternoon. Seas 6 to 10 ft. Rain.
.SUN NIGHT...W wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 7 to 10 ft.
.MON...W wind 15 to 25 kt. Seas 7 to 10 ft.
.MON NIGHT...W wind 15 to 25 kt. Seas 7 to 10 ft.
.TUE THROUGH WED...W wind 10 to 20 kt. Seas 5 to 9 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

464 
FZAK62 PAFC 301153
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
353 AM AKDT Sun Aug 30 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.

PKZ499-310115-
353 AM AKDT Sun Aug 30 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 964 low at 53N 169W moves inland near 59N 161W by this evening. The
associated front weakens across the central Bering through Mon 
afternoon.

$$

PKZ411-310115-
Bering Sea Offshore West of 180 and East of the International
Dateline-
353 AM AKDT Sun Aug 30 2020

...GALE WARNING TODAY...

.TODAY...N wind 25 to 35 kt. Seas 14 ft.
.TONIGHT...N wind 25 kt. Seas 11 ft.
.MON...NW wind 10 to 20 kt. Seas 9 ft.
.MON NIGHT...W wind 10 to 20 kt. Seas 6 to 9 ft.
.TUE THROUGH WED...W wind up to 20 kt. Seas 4 to 8 ft.
.THU...N wind 10 kt. Seas 4 to 9 ft.

$$

PKZ412-310115-
Bering Sea Offshore 171W to 180 and North of 56N-
353 AM AKDT Sun Aug 30 2020

...GALE WARNING TODAY...

.TODAY...N wind 20 to 35 kt. Seas 8 to 13 ft.
.TONIGHT...N wind 20 to 30 kt. Seas 11 ft.
.MON...NW wind 25 kt. Seas 11 ft.
.MON NIGHT...NW wind 10 to 20 kt. Seas 7 to 10 ft.
.TUE THROUGH WED...W wind up to 15 kt. Seas 4 to 9 ft.
.THU...N wind 10 kt. Seas 4 ft.

$$

PKZ413-310115-
Bering Sea Offshore 171W to 180 and South of 56N-
353 AM AKDT Sun Aug 30 2020

.TODAY...N wind 10 to 25 kt. Seas 7 to 12 ft.
.TONIGHT...NW wind 15 to 25 kt. Seas 6 to 11 ft.
.MON...NW wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 10 to 20 kt. Seas 7 to 10 ft.
.TUE THROUGH THU...W wind up to 20 kt. Seas 4 to 9 ft.

$$

PKZ414-310115-
Bering Sea Offshore East of 171W-
353 AM AKDT Sun Aug 30 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 20 to 35 kt becoming NW 25 to 40 kt in the
afternoon. Seas 6 to 10 ft. Widespread rain showers.
.TONIGHT...W wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 7 to 10 ft.
.MON...W wind 15 to 25 kt. Seas 7 to 10 ft.
.MON NIGHT...W wind 15 to 25 kt. Seas 7 to 10 ft.
.TUE THROUGH WED...W wind 10 to 20 kt. Seas 5 to 9 ft.
.THU...S wind up to 15 kt. Seas 3 ft.

$$

970 
FZAK62 PAFC 302352
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
352 PM AKDT Sun Aug 30 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.

PKZ499-311345-
352 PM AKDT Sun Aug 30 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 959 mb low at 58N 162W moves inland this evening. The associated
front weakens across the Bering through Mon night.

$$

PKZ411-311345-
Bering Sea Offshore West of 180 and East of the International
Dateline-
352 PM AKDT Sun Aug 30 2020

.TONIGHT...NW wind 10 to 25 kt. Seas 11 ft.
.MON...W wind 10 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...W wind up to 20 kt. Seas 7 ft.
.TUE...NW wind up to 20 kt. Seas 6 ft.
.TUE NIGHT...W wind 10 to 20 kt. Seas 5 ft.
.WED...W wind 10 to 20 kt. Seas 3 to 6 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 4 to 9 ft.

$$

PKZ412-311345-
Bering Sea Offshore 171W to 180 and North of 56N-
352 PM AKDT Sun Aug 30 2020

.TONIGHT...NW wind 20 to 30 kt. Seas 11 to 14 ft.
.MON...NW wind 15 to 30 kt. Seas 11 ft.
.MON NIGHT...NW wind 10 to 15 kt. Seas 8 ft.
.TUE...N wind 10 kt. Seas 4 to 7 ft.
.TUE NIGHT...NW wind 10 kt. Seas 4 ft.
.WED...W wind 10 to 25 kt. Seas 4 ft.
.THU...N wind 10 kt. Seas 4 ft.
.FRI...NE wind 10 kt. Seas 3 to 6 ft.

$$

PKZ413-311345-
Bering Sea Offshore 171W to 180 and South of 56N-
352 PM AKDT Sun Aug 30 2020

.TONIGHT...NW wind 25 kt. Seas 7 to 12 ft.
.MON...NW wind 15 to 25 kt. Seas 10 ft.
.MON NIGHT...W wind 10 to 20 kt. Seas 8 ft.
.TUE...W wind up to 15 kt. Seas 6 ft.
.TUE NIGHT...NW wind up to 15 kt. Seas 5 ft.
.WED THROUGH THU...W wind up to 20 kt. Seas 3 to 7 ft.
.FRI...E wind 10 kt. Seas 4 ft.

$$

PKZ414-311345-
Bering Sea Offshore East of 171W-
352 PM AKDT Sun Aug 30 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 9 to 14 ft.
.MON...NW wind 15 to 30 kt. Seas 7 to 11 ft.
.MON NIGHT...NW wind 10 to 25 kt. Seas 7 to 10 ft.
.TUE...W wind up to 15 kt. Seas 6 ft.
.TUE NIGHT...NW wind up to 15 kt. Seas 4 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...SE wind up to 15 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
610 PM AKDT Tue Aug 25 2020

.ANALYSIS AND UPPER LEVELS...

Not much change in the overall pattern this morning. The upper
level low remains parked over the northern Bering Sea, with a
surface low in the northern Gulf of Alaska. West of the Alaska
Range, precipitation is mostly showery under the influence of the
upper level low. East of the Alaska Range, a deformation band has
set up over Southcentral, with steady rain falling from the
northern Kenai Peninsula, across the Anchorage Bowl and into the
southern Susitna Valley. Half an inch to an inch of rain has
fallen in the last 24 hours with this event. The 12Z sounding
shows moderate instability between the surface and about 600 mb,
which is evident in the heavier showers embedded in the overall
band of precipitation.

&&

.MODEL DISCUSSION...

Models remain in good synoptic agreement on low positioning, but
timing of individual features varies between runs. Of the high-res
models, currently Canadian Regional has the best handle on the
band of precip over Southcentral. This model also moves the rain
band further south over the Kenai Peninsula later this afternoon,
instead of the early afternoon solution preferred by the NAM.

&&

.AVIATION...

PANC...Persistent rain has brought MVFR tempo ceilings to the
Anchorage area. The main band is expected to move southward this
evening, with precipitation expected to diminish to off-and-on
very light nuisance rain across the TAF area. Another disturbance
brings another round of steady rain during the day Wednesday,
with MVFR to IFR conditions returning.

&&

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

The longwave pattern features broad troughing from the Gulf of
Alaska to the Central Bering. Cyclonic flow aloft will continue
this forecast period. There are multiple embedded shortwaves aloft
but the actual surface low is by Montague Island. This low has
already dumped an estimated 3/4s of an inch of rain in the past
24hrs over the Anchorage Bowl. Merrill Field measured .73 and Lake
Hood .72 and the radar at Kenai (PAHG) continues to show
additional moisture for portions of Southcentral. This moisture is
being wrapped around the low as the low with continue to weaken.
Wednesday Prince William Sound and the northern Gulf of Alaska
will get additional moisture tomorrow and Thursday. Upper level
energy that is currently over the Bering will push eastward
ushering another plume of moisture into Southcentral. Overall, the
pattern looks cloudy and wet for the majority of the region the
next 3 days. Friday is looking relatively dry at this time as the
models are advertising a weak ridge building over Kodiak.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2: Tonight
through Thursday)...

A low drifting south along the coast of Southwest Alaska will
continue to keep scattered rain shower activity ongoing into the
overnight hours tonight. Except in any heavier showers, most areas
should stay around one tenth of an inch of rain through tonight.
A brief dry period is possible Thursday morning before more rain
shower activity develops Thursday afternoon. Since the low stays
relatively weak, winds should remain light in most inland areas,
with somewhat gustier conditions along the coast.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2: Tonight
through Thursday)...

Widespread cumulus to stratocumulus over the eastern two-thirds of
the Bering is producing shower activity over that area into the
Aleutians. High pressure with northwesterly offshore flow off
Siberia is allowing much of the cloud cover to dissipate over the
western Bering, so unusually sunny conditions are ongoing over the
Western Aleutians and into Shemya. A low will approach the western
Aleutians ending the relatively clear weather for that area on
Wednesday, with rain developing late in the day along with small
craft southeasterly winds. The low will not be moving much, but
will be slowly strengthening with time, with gales possible north
of the chain Thursday afternoon and evening. The low center will
drift east along the western Aleutians into Friday, with gales
continuing north of the center over the open Bering. Associated
small craft conditions will move into the eastern Aleutians by
Friday morning.

&&

.MARINE (Days 3 through 5/ Thursday through Saturday)...

A North Pacific low moves across the Aleutians through Saturday.
Model confidence during this timeframe has increased and we have
introduced gale force winds along the front in the western to
central Bering Sea. Confidence begins to waiver Sunday morning.
This complex system spins up another low somewhere between 953 and
970 mb. Depending on the strength of this low will determine if
winds could potentially reach storm force or even hurricane force
per some guidance. Placement varies from outside of the Aleutian
waters south of Adak, to north of Adak in the Bering or somewhere
in between. The track of this storm by Sunday night remains highly
variable landing somewhere between the northeastern Bering or
over towards the Alaska Peninsula. All in all, there will be
plenty of refinement associated with this system as we go through
the week, but mariners in the area should pay close attention.

For the Western Gulf, timing, placement and strength of a front
associated with a low over the Aleutians is expected Saturday
morning sometime into the afternoon. Confidence is limited whether
this front will produce small craft or gale force winds as it
propagates towards Prince William Sound late Saturday into Sunday.

&&

.LONG TERM FORECAST (Days 4 through 7/ (Friday afternoon through
Tuesday)...

Starting Friday afternoon, weak upper level ridging will be
present across much of the southern Mainland of Alaska. This will
lead to a brief reprieve from the wet work week the area has been
experiencing.

Starting Saturday through the remainder of the long term forecast
period, a very interesting situation is unfolding. A tropical
cyclone currently to the south of South Korea will continue moving
northward while weakening. The energy from this weakened tropical
cyclone will get caught in the westerly flow aloft as an upper
trough over Siberia dives southeastward Friday through Saturday.
All model guidance is showing this storm system for the weekend.
However, the differences emerge on how each piece of model guidance
deals with the energy from the remains of the aforementioned
tropical cyclone. One model has a very strong low in the Bering
Sea with the other models not as strong with this low. This will
become fine tuned in the coming days as we near the event and
models get a better handle on exactly how the energy from the
remains of the aforementioned tropical cyclone pans out. For now,
we expect an increase in unsettled weather with rainy conditions
(potential for heavy rainfall) especially for Southwest Alaska
over the weekend into early next week along with small crafts to
gale force winds across the Bering. However, we cannot rule out
the potential for a storm force or even hurricane force low in
the Bering if the strongest solution plays out. The front from
this system will also set up southwesterly flow aloft on Saturday
through the remainder of the forecast period bringing rain back
into the forecast for Southcentral Alaska. Depending on the track
of the low and its associated front, a barrier jet and strong
higher elevation Turnagain Arm winds cannot be ruled out for
Saturday afternoon into Sunday.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...NONE.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...LF
SOUTHCENTRAL ALASKA...PJS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JPW
MARINE/LONG TERM...CK/MV