Alert archive / Alaska / Gale Warnings in 2021

Gale Warning 540, NWS Anchorage, AK

September 30, 2021

NWS Anchorage, AK issued this gale warning at Sep 30, 2021, 3:01 AM AKDT. It was in force for 25 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
Sep 30, 2021, 3:01 AM AKDT (11:01 UTC)
Expired
Oct 1, 2021, 4:10 AM AKDT
In force
25 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

571 
FZAK62 PAFC 301101
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
301 AM AKDT Thu Sep 30 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.

PKZ499-010045-
301 AM AKDT Thu Sep 30 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 980 Bering mb low at 59N 178W moves to 55N 173W at 990 mb this 
afternoon. The low then moves to 53N 173W at 995 mb this evening. 
High pressure will build over eastern Siberia behind the low 
through Saturday.

$$

PKZ411-010045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
301 AM AKDT Thu Sep 30 2021

...GALE WARNING TODAY...

.TODAY...NW wind 30 to 45 kt becoming N 20 to 30 kt in the
afternoon. Seas 15 to 27 ft.
.TONIGHT...N wind 10 to 25 kt. Seas 10 to 18 ft.
.FRI...NW wind 10 to 20 kt. Seas 6 to 11 ft.
.FRI NIGHT...W wind up to 20 kt. Seas 5 to 8 ft.
.SAT...S wind 10 to 25 kt. Seas 5 to 8 ft.
.SUN...SE wind 25 to 40 kt. Seas 14 to 22 ft.
.MON...S wind 25 to 35 kt. Seas 16 to 26 ft.

$$

PKZ412-010045-
Bering Sea Offshore 171W to 180 and North of 56N-
301 AM AKDT Thu Sep 30 2021

...STORM WARNING TODAY...

.TODAY...N wind 35 to 50 kt diminishing to 30 kt in the afternoon.
Seas 16 to 29 ft.
.TONIGHT...N wind 20 to 30 kt. Seas 11 to 18 ft.
.FRI...NW wind 15 to 30 kt. Seas 8 to 12 ft.
.FRI NIGHT...NW wind 10 to 25 kt. Seas 6 to 11 ft.
.SAT...W wind 10 to 20 kt. Seas 6 to 9 ft.
.SUN...S wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...S wind 30 kt. Seas 14 to 27 ft.

$$

PKZ413-010045-
Bering Sea Offshore 171W to 180 and South of 56N-
301 AM AKDT Thu Sep 30 2021

...GALE WARNING TODAY...

.TODAY...W wind 35 to 45 kt becoming N 25 to 40 kt in the
afternoon. Seas 21 to 27 ft. Widespread rain showers.
.TONIGHT...N wind 20 to 30 kt. Seas 13 to 21 ft.
.FRI...N wind 10 to 25 kt. Seas 9 to 14 ft.
.FRI NIGHT...NW wind 10 to 20 kt. Seas 7 to 12 ft.
.SAT...SW wind 10 to 20 kt. Seas 5 to 9 ft.
.SUN...SE wind 20 to 35 kt. Seas 7 to 12 ft.
.MON...S wind 20 to 30 kt. Seas 11 to 19 ft.

$$

PKZ414-010045-
Bering Sea Offshore East of 171W-
301 AM AKDT Thu Sep 30 2021

...GALE WARNING TODAY AND FRIDAY...

.TODAY...W wind 25 to 40 kt becoming NW 15 to 30 kt in the
afternoon. Seas 13 to 21 ft.
.TONIGHT...N wind 20 to 30 kt. Seas 12 to 19 ft.
.FRI...NW wind 35 kt. Seas 12 to 16 ft. Rain showers.
.FRI NIGHT...NW wind 25 to 35 kt. Seas 10 to 16 ft.
.SAT...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN...SW wind up to 20 kt. Seas 4 to 7 ft.
.MON...S wind 20 to 30 kt. Seas 9 to 14 ft.

$$
2 follow-up statements
333 
FZAK62 PAFC 010001
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
401 PM AKDT Thu Sep 30 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.

PKZ499-011345-
401 PM AKDT Thu Sep 30 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 980 Bering mb low exits the Bering over the Alaska Peninsula
this afternoon and moves into the Gulf of Alaska. High pressure
builds over the Western Bering creating strong northerly flow
across the Bering through Saturday.

$$

PKZ411-011345-
Bering Sea Offshore West of 180 and East of the International
Dateline-
401 PM AKDT Thu Sep 30 2021

.TONIGHT...N wind 15 to 25 kt. Seas 9 to 17 ft.
.FRI...NW wind 10 to 15 kt. Seas 5 to 10 ft.
.FRI NIGHT...SW wind 10 to 20 kt. Seas 6 ft.
.SAT...SW wind 20 kt. Seas 5 to 9 ft.
.SAT NIGHT...S wind 15 to 30 kt. Seas 7 ft.
.SUN THROUGH TUE...S wind 30 to 45 kt. Seas 16 to 24 ft.

$$

PKZ412-011345-
Bering Sea Offshore 171W to 180 and North of 56N-
401 PM AKDT Thu Sep 30 2021

.TONIGHT...N wind 20 to 30 kt. Seas 11 to 16 ft.
.FRI...NW wind 15 to 30 kt. Seas 8 to 12 ft.
.FRI NIGHT...NW wind 15 to 25 kt. Seas 5 to 10 ft.
.SAT...W wind 10 to 20 kt. Seas 4 to 8 ft.
.SAT NIGHT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 20 to 35 kt. Seas 8 to 13 ft.
.MON THROUGH TUE...S wind 30 kt. Seas 16 to 24 ft.

$$

PKZ413-011345-
Bering Sea Offshore 171W to 180 and South of 56N-
401 PM AKDT Thu Sep 30 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 30 to 45 kt early diminishing to 15 to 30 kt. Seas
12 to 20 ft.
.FRI...NW wind 10 to 25 kt. Seas 8 to 13 ft.
.FRI NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.SAT...W wind 20 kt. Seas 6 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...S wind 20 to 35 kt. Seas 7 to 12 ft.
.MON THROUGH TUE...S wind 20 to 30 kt. Seas 11 to 19 ft.

$$

PKZ414-011345-
Bering Sea Offshore East of 171W-
401 PM AKDT Thu Sep 30 2021

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...N wind 20 to 30 kt. Seas 12 to 17 ft.
.FRI...NW wind 20 to 30 kt. Seas 11 to 15 ft.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 9 to 14 ft. Rain and snow 
showers.
.SAT...NW wind 15 to 30 kt. Seas 7 to 11 ft.
.SAT NIGHT...NW wind 10 to 25 kt. Seas 5 to 9 ft.
.SUN...SW wind up to 20 kt. Seas 4 to 7 ft.
.MON THROUGH TUE...S wind 20 to 30 kt. Seas 10 to 18 ft.

$$
996 
FZAK62 PAFC 011210
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
410 AM AKDT Fri Oct 1 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.

PKZ499-020130-
410 AM AKDT Fri Oct 1 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

Semisopochnoi Volcano 140 nm west of Adak is currently active.

A ridge of high pressure moves from the western Bering to the
eastern Aleutians by Sunday morning. A front associated with a 968
mb Kamchatka low approaches the western Aleutians by Sunday 
morning.

$$

PKZ411-020130-
Bering Sea Offshore West of 180 and East of the International
Dateline-
410 AM AKDT Fri Oct 1 2021

.TODAY...W wind 10 to 15 kt. Seas 7 to 10 ft.
.TONIGHT...SW wind 10 to 25 kt. Seas 7 ft.
.SAT...SW wind 15 to 25 kt. Seas 7 ft. Rain.
.SAT NIGHT...S wind 20 to 35 kt. Seas 6 to 9 ft.
.SUN THROUGH MON...SW wind 25 to 40 kt. Seas 13 to 27 ft.
.TUE...S wind 15 to 30 kt. Seas 10 to 18 ft.

$$

PKZ412-020130-
Bering Sea Offshore 171W to 180 and North of 56N-
410 AM AKDT Fri Oct 1 2021

.TODAY...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.TONIGHT...W wind 20 kt. Seas 6 to 9 ft.
.SAT...W wind 15 to 25 kt. Seas 7 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 7 ft.
.SUN...S wind 20 to 35 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...S wind 25 to 40 kt. Seas 14 to 22 ft.

$$

PKZ413-020130-
Bering Sea Offshore 171W to 180 and South of 56N-
410 AM AKDT Fri Oct 1 2021

.TODAY...NW wind 10 to 25 kt. Seas 8 to 13 ft.
.TONIGHT...W wind 10 to 20 kt. Seas 8 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN...S wind 20 to 35 kt. Seas 8 to 13 ft.
.MON THROUGH TUE...S wind 25 to 35 kt. Seas 12 to 20 ft.

$$

PKZ414-020130-
Bering Sea Offshore East of 171W-
410 AM AKDT Fri Oct 1 2021

.TODAY...NW wind 30 kt. Seas 10 to 15 ft.
.TONIGHT...NW wind 20 to 30 kt. Seas 8 to 13 ft.
.SAT...NW wind 15 to 30 kt. Seas 6 to 11 ft.
.SAT NIGHT...W wind up to 20 kt. Seas 4 to 7 ft.
.SUN THROUGH TUE...S wind 20 to 35 kt. Seas 9 to 14 ft.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 3:01 AM AKDTGale WarningAFC12 hr
Sep 30, 3:01 AM AKDTSmall Craft AdvisoryAFC12 hr
Sep 30, 3:01 AM AKDTStorm WarningAFC12 hr
Sep 30, 3:49 AM AKDTGale WarningAFC12 hr
Sep 30, 3:49 AM AKDTSmall Craft AdvisoryAFC3 days
Sep 30, 3:49 AM AKDTStorm WarningAFC24 hr
Sep 30, 3:54 PM AKDTGale WarningAFC12 hr
Sep 30, 3:54 PM AKDTSmall Craft AdvisoryAFC71 hr

Nearby

Gale Warnings in Alaska, 2021Every gale warning in 2021

Sources

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