Alert archive / Alaska / Hurricane Force Wind Warnings in 2020

Hurricane Force Wind Warning 13, NWS Anchorage, AK

December 30, 2020

NWS Anchorage, AK issued this hurricane force wind warning at Dec 30, 2020, 4:07 AM AKST. It was in force for 24 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
Dec 30, 2020, 4:07 AM AKST (13:07 UTC)
Expired
Dec 31, 2020, 4:30 AM AKST
In force
24 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

551 
FZAK62 PAFC 301307
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
407 AM AKST Wed Dec 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.

PKZ499-310230-
407 AM AKST Wed Dec 30 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A strong North Pacific low moves to 50N 169E Wed night at 932 mb, 
then to 54N 174E at 928 mb by Thu evening. Its front tracks west
to east across the Aleutians through Thu. 

$$

PKZ411-310230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
407 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TODAY...S wind 15 to 30 kt. Seas 10 to 15 ft.
.TONIGHT...S wind 20 to 35 kt becoming SE 45 to 60 kt after
midnight. Seas 14 to 22 ft. Snow.
.THU...E wind 50 to 65 kt. Seas 16 to 31 ft building to 25 to 40 ft 
in the afternoon. Snow and rain.
.THU NIGHT...SE wind 40 to 55 kt. Seas 25 to 40 ft.
.FRI...SE wind 30 to 45 kt. Seas 19 to 34 ft.
.SAT THROUGH SUN...N wind 25 to 40 kt. Seas 16 to 24 ft.

$$

PKZ412-310230-
Bering Sea Offshore 171W to 180 and North of 56N-
407 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...S wind 10 to 20 kt. Seas 9 ft.
.TONIGHT...S wind 15 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 8 to 13 ft.
.THU...SE wind 45 to 60 kt. Seas 10 to 18 ft building to 14 to 32 ft
in the afternoon. Snow.
.THU NIGHT...SE wind 35 to 50 kt. Seas 21 to 33 ft.
.FRI...SE wind 20 to 35 kt. Seas 18 to 31 ft.
.SAT...E wind 20 to 35 kt. Seas 16 to 25 ft.
.SUN...NE wind 15 to 30 kt. Seas 12 to 15 ft.

$$

PKZ413-310230-
Bering Sea Offshore 171W to 180 and South of 56N-
407 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TODAY...SW wind 10 to 25 kt. Seas 10 ft.
.TONIGHT...S wind 10 to 25 kt becoming SE 40 to 55 kt after
midnight. Seas 8 to 18 ft. Snow.
.THU...SE wind 50 to 65 kt. Seas 16 to 32 ft. Rain and snow.
.THU NIGHT...S wind 35 to 50 kt. Seas 21 to 36 ft.
.FRI THROUGH SAT...S wind 25 to 40 kt. Seas 18 to 33 ft.
.SUN...E wind 10 to 25 kt. Seas 9 to 14 ft.

$$

PKZ414-310230-
Bering Sea Offshore East of 171W-
407 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...SW wind 10 to 15 kt. Seas 5 to 8 ft.
.TONIGHT...SW wind up to 15 kt becoming E after midnight. Seas 5
to 8 ft.
.THU...SE wind 20 to 35 kt increasing to 35 to 50 kt in the
afternoon. Seas 5 to 8 ft building to 9 to 19 ft in the afternoon. 
Rain.
.THU NIGHT...SE wind 30 to 45 kt. Seas 11 to 19 ft.
.FRI...S wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT...SE wind up to 20 kt. Seas 12 to 20 ft.
.SUN...NE wind up to 20 kt. Seas 7 to 12 ft.

$$
1 follow-up statement
202 
FZAK62 PAFC 310042
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
342 PM AKST Wed Dec 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.

PKZ499-311330-
342 PM AKST Wed Dec 30 2020
.SYNOPSIS FOR CENTRAL BERING SEA...

A 947 mb low at 46N 165E will strengthen as it moves to 54N 174E 
at 925 mb on Thu afternoon, with the highest wave heights and 
winds between Shemya and Adak, and continues to 55N 175E and 
weakens to 936 mb on Fri afternoon.

$$

PKZ411-311330-
Bering Sea Offshore West of 180 and East of the International
Dateline-
342 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 20 to 35 kt becoming SE 45 to 60 kt after
midnight. Seas 14 to 22 ft. Snow.
.THU...E wind 50 to 65 kt. Seas 16 to 31 ft building to 25 to 35
ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 40 to 55 kt. Seas 25 to 40 ft. Snow and rain.
.FRI...SE wind 30 to 45 kt. Seas 21 to 35 ft.
.FRI NIGHT...SE wind 25 to 40 kt. Seas 17 to 31 ft.
.SAT THROUGH MON...N wind 25 to 40 kt. Seas 16 to 24 ft.

$$

PKZ412-311330-
Bering Sea Offshore 171W to 180 and North of 56N-
342 PM AKST Wed Dec 30 2020

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

.TONIGHT...S wind 15 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 8 to 12 ft.
.THU...SE wind 45 to 60 kt. Seas 10 to 18 ft building to 14 to 29
ft in the afternoon. Snow.
.THU NIGHT...SE wind 35 to 50 kt diminishing to 25 to 40 kt after
midnight. Seas 21 to 33 ft. Snow.
.FRI...S wind 15 to 30 kt. Seas 22 to 31 ft.
.FRI NIGHT...SE wind 20 to 35 kt. Seas 18 to 25 ft.
.SAT...E wind 20 to 35 kt. Seas 16 to 25 ft.
.SUN THROUGH MON...N wind 15 to 30 kt. Seas 11 to 15 ft.

$$

PKZ413-311330-
Bering Sea Offshore 171W to 180 and South of 56N-
342 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 10 to 25 kt becoming SE 40 to 55 kt after
midnight. Seas 8 to 16 ft. Snow.
.THU...SE wind 50 to 65 kt. Seas 16 to 30 ft. Snow and rain.
.THU NIGHT...S wind 35 to 50 kt. Seas 22 to 37 ft. Snow.
.FRI...S wind 25 to 40 kt. Seas 21 to 34 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 19 to 32 ft.
.SAT...S wind 20 to 35 kt. Seas 16 to 31 ft.
.SUN...E wind 10 to 25 kt. Seas 9 to 14 ft.
.MON...N wind 15 to 30 kt. Seas 10 to 15 ft.

$$

PKZ414-311330-
Bering Sea Offshore East of 171W-
342 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...SW wind up to 15 kt becoming E after midnight. Seas 5
to 8 ft.
.THU...SE wind 20 to 35 kt increasing to 35 to 50 kt in the
afternoon. Seas 5 to 8 ft building to 9 to 14 ft in the afternoon.
Rain.
.THU NIGHT...SE wind 30 to 45 kt. Seas 11 to 19 ft. Rain and snow.
.FRI...S wind 15 to 30 kt. Seas 13 to 21 ft.
.FRI NIGHT...S wind up to 20 kt. Seas 11 to 18 ft.
.SAT...SE wind up to 20 kt. Seas 12 to 20 ft.
.SUN THROUGH MON...N wind 10 to 25 kt. Seas 7 to 12 ft.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 29, 3:06 PM AKSTGale WarningAFC13 hr
Dec 29, 3:06 PM AKSTHurricane Force Wind WarningAFC50 hr
Dec 29, 3:06 PM AKSTStorm WarningAFC13 hr
Dec 29, 3:19 PM AKSTGale WarningAFC12 hr
Dec 29, 3:26 PM AKSTHigh Wind WarningAFC45 hr
Dec 30, 3:39 AM AKSTGale WarningAFC38 hr
Dec 30, 3:45 AM AKSTGale WarningAFC12 hr
Dec 30, 3:45 AM AKSTSmall Craft AdvisoryAFC37 hr
Dec 30, 3:58 AM AKSTGale WarningAFC37 hr
Dec 30, 3:58 AM AKSTHurricane Force Wind WarningAFC37 hr
Dec 30, 3:58 AM AKSTSmall Craft AdvisoryAFC12 hr
Dec 30, 3:58 AM AKSTStorm WarningAFC37 hr
Dec 30, 4:07 AM AKSTStorm WarningAFC24 hr
Dec 30, 6:58 AM AKSTGale WarningAFC9 hr

Nearby

Hurricane Force Wind Warnings in Alaska, 2020Every hurricane force wind 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.