Storm Warning 3, NWS Anchorage, AK

085 
FZAK62 PAFC 201305
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
405 AM AKST Fri Jan 20 2023

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.

PKZ499-210245-
405 AM AKST Fri Jan 20 2023
.SYNOPSIS FOR CENTRAL BERING SEA...

A 970 mb low at 51N 178E this morning will move to 56N 172E at 970
mb Saturday morning. The low then moves over Siberia Sunday
morning. A second 968 mb North Pacific low moves to 51N 161W
Sunday morning. 

$$

PKZ411-210245-
Bering Sea Offshore West of 180 and East of the International
Dateline-
405 AM AKST Fri Jan 20 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 15 to 30 kt increasing to 35 to 50 kt in the
afternoon. Seas 7 to 12 ft building to 10 to 18 ft in the
afternoon. Freezing spray. Snow.
.TONIGHT...SE wind 40 to 55 kt. Seas 16 to 27 ft. Freezing spray.
.SAT...SE wind 30 to 45 kt. Seas 14 to 27 ft. Freezing spray.
.SAT NIGHT...E wind 30 to 45 kt. Seas 15 to 23 ft.
.SUN...NE wind 30 to 45 kt. Seas 16 to 26 ft.
.MON...NW wind 15 to 30 kt. Seas 13 to 18 ft.
.TUE...E wind 10 to 25 kt. Seas 8 to 12 ft.

$$

PKZ412-210245-
Bering Sea Offshore 171W to 180 and North of 56N-
405 AM AKST Fri Jan 20 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND SATURDAY...

.TODAY...E wind 15 to 30 kt increasing to 25 to 40 kt in the
afternoon. Seas 6 to 11 ft. Freezing spray.
.TONIGHT...E wind 35 to 50 kt. Seas 11 to 19 ft.
Heavy freezing spray E of 173W.
.SAT...E wind 35 to 45 kt. Seas 14 to 22 ft.
Heavy freezing spray E of 173W.
.SAT NIGHT...E wind 40 to 50 kt. Seas 17 to 25 ft.
.SUN THROUGH MON...NE wind 30 to 45 kt. Seas 13 to 21 ft.
.TUE...NE wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ413-210245-
Bering Sea Offshore 171W to 180 and South of 56N-
405 AM AKST Fri Jan 20 2023

...STORM WARNING THROUGH SATURDAY...

.TODAY...E wind 25 to 40 kt increasing to 35 to 50 kt in the
afternoon. Seas 6 to 11 ft building to 9 to 17 ft in the
afternoon. Freezing spray.
.TONIGHT...SE wind 35 to 50 kt. Seas 13 to 21 ft.
.SAT...E wind 35 to 50 kt. Seas 14 to 21 ft.
.SAT NIGHT...E wind 35 to 50 kt. Seas 17 to 25 ft.
.SUN...NE wind 25 to 40 kt. Seas 14 to 22 ft.
.MON...NW wind up to 20 kt. Seas 9 to 14 ft.
.TUE...W wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ414-210245-
Bering Sea Offshore East of 171W-
405 AM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TODAY...N wind 10 to 20 kt. Seas 6 ft.
Heavy freezing spray N of 57N.
.TONIGHT...NE wind 20 to 35 kt. Seas 4 to 9 ft.
Heavy freezing spray N of 56N.
.SAT...E wind 35 to 50 kt. Seas 8 to 16 ft.
Heavy freezing spray N of 56N.
.SAT NIGHT...E wind 40 to 50 kt. Seas 13 to 21 ft.
.SUN...NE wind 30 to 45 kt. Seas 10 to 18 ft.
.MON...E wind 15 to 30 kt. Seas 6 to 11 ft.
.TUE...N wind up to 20 kt. Seas 3 to 6 ft.

$$

943 
FZAK62 PAFC 210008
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
308 PM AKST Fri Jan 20 2023

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.

PKZ499-211500-
308 PM AKST Fri Jan 20 2023
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 mb low at 53N 177E will move to 57N 169E at 974 mb Saturday
afternoon. The low then moves over Siberia Sunday morning. A 
second 970 mb North Pacific low moves to 51N 168W Sunday afternoon.

$$

PKZ411-211500-
Bering Sea Offshore West of 180 and East of the International
Dateline-
308 PM AKST Fri Jan 20 2023

...STORM WARNING TONIGHT...

.TONIGHT...SE wind 40 to 55 kt. Seas 15 to 30 ft. Freezing spray 
N of 58N. Snow showers.
.SAT...SE wind 30 to 45 kt. Seas 16 to 29 ft. Freezing spray 
N of 58N in the morning. Snow.
.SAT NIGHT...NE wind 25 to 40 kt. Seas 15 to 22 ft. Freezing spray 
N of 57N. Snow.
.SUN...NE wind 25 to 40 kt. Seas 17 to 25 ft.
.SUN NIGHT...N wind 20 to 35 kt. Seas 17 to 24 ft.
.MON...N wind 15 to 30 kt. Seas 13 to 20 ft.
.TUE THROUGH WED...E wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ412-211500-
Bering Sea Offshore 171W to 180 and North of 56N-
308 PM AKST Fri Jan 20 2023

...STORM WARNING TONIGHT AND SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 35 to 50 kt. Seas 11 to 19 ft. Heavy freezing spray
N of 57N and E of 174W.
.SAT...E wind 35 to 45 kt. Seas 14 to 22 ft. Heavy freezing spray
N of 57N and E of 174W.
.SAT NIGHT...E wind 40 to 50 kt. Seas 18 to 25 ft. Heavy freezing spray
N of 57N and E of 176W.
.SUN...NE wind 35 to 45 kt. Seas 18 to 25 ft.
.SUN NIGHT...NE wind 25 to 40 kt. Seas 15 to 22 ft.
.MON...NE wind 25 to 40 kt. Seas 11 to 19 ft.
.TUE...NE wind 10 to 25 kt. Seas 6 to 11 ft.
.WED...E wind 10 to 25 kt. Seas 9 to 12 ft.

$$

PKZ413-211500-
Bering Sea Offshore 171W to 180 and South of 56N-
308 PM AKST Fri Jan 20 2023

...STORM WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SE wind 35 to 50 kt. Seas 13 to 21 ft.
.SAT...E wind 40 kt becoming 35 to 50 kt in the afternoon. 
Seas 15 to 22 ft.
.SAT NIGHT...E wind 35 to 50 kt. Seas 19 to 26 ft.
.SUN...NE wind 25 to 40 kt. Seas 18 to 25 ft.
.SUN NIGHT...NE wind 15 to 30 kt. Seas 14 to 20 ft.
.MON...N wind 10 to 25 kt. Seas 9 to 14 ft.
.TUE...W wind 10 to 25 kt. Seas 5 to 10 ft.
.WED...SE wind 10 to 25 kt. Seas 10 ft.

$$

PKZ414-211500-
Bering Sea Offshore East of 171W-
308 PM AKST Fri Jan 20 2023

...STORM WARNING SATURDAY AND SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 20 to 35 kt. Seas 5 to 10 ft. Heavy freezing 
spray N of 56N.
.SAT...E wind 35 to 50 kt. Seas 9 to 17 ft. Heavy freezing spray 
N of 56N.
.SAT NIGHT...NE wind 35 to 50 kt. Seas 14 to 22 ft. Heavy freezing 
spray N of 57N.
.SUN...NE wind 30 to 40 kt. Seas 13 to 21 ft.
.SUN NIGHT...NE wind 25 to 40 kt. Seas 10 to 17 ft.
.MON...E wind 15 to 30 kt. Seas 6 to 11 ft.
.TUE...N wind up to 20 kt. Seas 3 to 6 ft.
.WED...SE wind up to 15 kt. Seas 4 to 8 ft.

$$

861 
FZAK62 PAFC 211237
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
337 AM AKST Sat Jan 21 2023

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-
337 AM AKST Sat Jan 21 2023
.SYNOPSIS FOR CENTRAL BERING SEA...

A 967 mb low at 56N 171E this morning will move over Siberia
Sunday morning. A 959 mb low at 45N 169W Saturday morning will
move to 51N 161W at 968 mb Sunday morning. This low will move over
Bristol Bay at 989 mb Monday morning. A second 978 mb low will
move to 52N 176W Monday morning.

$$

PKZ411-220200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
337 AM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY...

.TODAY...SE wind 30 to 45 kt. Seas 16 to 29 ft. Rain.
.TONIGHT...NE wind 25 to 40 kt. Seas 16 to 24 ft. 
.SUN...NE wind 25 to 40 kt. Seas 16 to 24 ft. Freezing spray N of
57N.
.SUN NIGHT...N wind 20 to 35 kt. Seas 17 to 24 ft.
.MON THROUGH TUE...N wind 20 to 35 kt. Seas 12 to 20 ft.
.WED...E wind 30 to 45 kt. Seas 9 to 14 ft.

$$

PKZ412-220200-
Bering Sea Offshore 171W to 180 and North of 56N-
337 AM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND SUNDAY...

.TODAY...E wind 35 to 45 kt. Seas 14 to 22 ft. Freezing spray.
.TONIGHT...E wind 40 to 50 kt. Seas 18 to 25 ft. Heavy freezing
spray N of 57N.
.SUN...NE wind 35 to 45 kt. Seas 18 to 25 ft. Heavy freezing
spray N of 57N.
.SUN NIGHT...NE wind 25 to 40 kt. Seas 15 to 22 ft.
.MON THROUGH TUE...N wind 25 to 40 kt. Seas 10 to 18 ft.
.WED...NE wind 25 to 40 kt. Seas 9 to 12 ft.

$$

PKZ413-220200-
Bering Sea Offshore 171W to 180 and South of 56N-
337 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E wind 40 kt becoming 35 to 50 kt in the afternoon.
Seas 15 to 22 ft.
.TONIGHT...E wind 35 to 50 kt. Seas 19 to 26 ft. Snow and rain.
.SUN...NE wind 25 to 40 kt diminishing to 20 to 30 kt in the
afternoon. Seas 18 to 25 ft. Rain with snow.
.SUN NIGHT...NE wind 15 to 30 kt. Seas 14 to 20 ft.
.MON THROUGH TUE...N wind 10 to 25 kt. Seas 9 to 14 ft.
.WED...E wind 25 to 40 kt. Seas 10 ft.

$$

PKZ414-220200-
Bering Sea Offshore East of 171W-
337 AM AKST Sat Jan 21 2023

...STORM WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...E wind 35 to 50 kt. Seas 9 to 17 ft. Heavy freezing
spray N of 57N.
.TONIGHT...NE wind 35 to 50 kt. Seas 14 to 22 ft. Heavy freezing
spray N of 57N.
.SUN...NE wind 30 to 40 kt. Seas 13 to 20 ft. Heavy freezing
spray N of 57N.
.SUN NIGHT...NE wind 25 to 40 kt. Seas 10 to 17 ft.
.MON THROUGH TUE...N wind 15 to 30 kt. Seas 4 to 9 ft.
.WED...N wind up to 20 kt. Seas 4 to 8 ft.

$$

394 
FZAK62 PAFC 212351
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
251 PM AKST Sat Jan 21 2023

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.

PKZ499-221400-
251 PM AKST Sat Jan 21 2023
.SYNOPSIS FOR CENTRAL BERING SEA...
A 972 mb low near 56N 170E moves into Siberia Sun morning. A 958 
mb low near 46N 168W moves to 54N 160W at 976 mb Sun evening, 
before dissipating over the Alaska Peninsula Mon evening.

$$

PKZ411-221400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
251 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt except NW winds 25 to 35 kt W of 174E.
Seas 15 to 23 ft. Snow.
.SUN...NE wind 25 to 40 kt. Seas 16 to 25 ft. Snow. Freezing spray N
of 57N.
.SUN NIGHT...NE wind 20 to 35 kt. Seas 16 to 24 ft. Freezing
spray N of 57N. Snow.
.MON...NE wind 20 to 35 kt. Seas 13 to 21 ft.
.MON NIGHT...NE wind 20 to 35 kt. Seas 12 to 20 ft.
.TUE...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.WED...E wind 30 to 45 kt. Seas 9 to 14 ft.
.THU...SE wind 20 to 30 kt. Seas 2 ft.

$$

PKZ412-221400-
Bering Sea Offshore 171W to 180 and North of 56N-
251 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E wind 40 to 50 kt. Seas 18 to 25 ft. Heavy freezing
spray N of 57N.
.SUN...NE wind 30 to 45 kt. Seas 17 to 25 ft. Heavy freezing spray 
N of 57N.
.SUN NIGHT...NE wind 30 to 45 kt. Seas 16 to 22 ft. Heavy freezing
spray N of 57N.
.MON...NE wind 25 to 40 kt. Seas 14 to 20 ft.
.MON NIGHT...NE wind 30 to 40 kt. Seas 12 to 19 ft.
.TUE THROUGH WED...NE wind 25 to 40 kt. Seas 9 to 14 ft.
.THU...S wind 20 to 30 kt. Seas 2 ft.

$$

PKZ413-221400-
Bering Sea Offshore 171W to 180 and South of 56N-
251 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 35 to 50 kt. Seas 18 to 25 ft. Snow and rain.
.SUN...NE wind 25 to 40 kt diminishing to 20 to 30 kt in the
afternoon. Seas 17 to 24 ft. Snow and rain.
.SUN NIGHT...NE wind 20 to 30 kt diminishing to 10 to 25 kt 
after midnight. Seas 14 to 18 ft. Snow and rain.
.MON...NE wind 15 to 30 kt. Seas 10 to 15 ft.
.MON NIGHT...E wind 15 to 30 kt. Seas 9 to 15 ft.
.TUE...N wind 15 to 30 kt. Seas 7 to 12 ft.
.WED...E wind 25 to 40 kt. Seas 10 ft.
.THU...S wind 20 to 30 kt. Seas 2 ft.

$$

PKZ414-221400-
Bering Sea Offshore East of 171W-
251 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 35 to 50 kt. Seas 14 to 22 ft. 
Heavy freezing spray N OF 57N.
.SUN...NE wind 30 to 40 kt. Seas 13 to 20 ft. 
Heavy freezing spray N of 57N. Snow.
.SUN NIGHT...NE wind 25 to 40 kt. Seas 9 to 16 ft. 
Heavy freezing spray N of 57N. Snow and rain.
.MON...NE wind 20 to 35 kt. Seas 7 to 12 ft.
.MON NIGHT...NE wind 15 to 30 kt. Seas 5 to 10 ft.
.TUE THROUGH WED...N wind 15 to 30 kt. Seas 3 to 8 ft.
.THU...SE wind 20 to 30 kt. Seas 2 ft.

$$

522 
FZAK62 PAFC 220008
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
308 PM AKST Sat Jan 21 2023

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.

PKZ499-221400-
308 PM AKST Sat Jan 21 2023
.SYNOPSIS FOR CENTRAL BERING SEA...
A 972 mb low near 56N 170E moves into Siberia Sun morning. A 958 
mb low near 46N 168W moves to 54N 160W at 976 mb Sun evening, 
before dissipating over the Alaska Peninsula Mon evening.

$$

PKZ411-221400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
308 PM AKST Sat Jan 21 2023

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt except NW winds 25 to 35 kt W of 174E.
Seas 15 to 23 ft. Snow.
.SUN...NE wind 25 to 40 kt. Seas 16 to 25 ft. Snow. Freezing spray N
of 57N.
.SUN NIGHT...NE wind 20 to 35 kt. Seas 16 to 24 ft. Freezing
spray N of 57N. Snow.
.MON...NE wind 20 to 35 kt. Seas 13 to 21 ft.
.MON NIGHT...NE wind 20 to 35 kt. Seas 12 to 20 ft.
.TUE...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.WED...E wind 30 to 45 kt. Seas 9 to 14 ft.
.THU...SE wind 20 to 30 kt. Seas 2 ft.

$$

PKZ412-221400-
Bering Sea Offshore 171W to 180 and North of 56N-
308 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E wind 40 to 50 kt. Seas 18 to 25 ft. Heavy freezing
spray N of 57N.
.SUN...NE wind 30 to 45 kt. Seas 17 to 25 ft. Heavy freezing spray N
of 57N.
.SUN NIGHT...NE wind 30 to 45 kt. Seas 16 to 22 ft. Heavy freezing
spray N of 57N.
.MON...NE wind 25 to 40 kt. Seas 14 to 20 ft.
.MON NIGHT...NE wind 30 to 40 kt. Seas 12 to 19 ft.
.TUE THROUGH WED...NE wind 25 to 40 kt. Seas 9 to 14 ft.
.THU...S wind 20 to 30 kt. Seas 2 ft.

$$

PKZ413-221400-
Bering Sea Offshore 171W to 180 and South of 56N-
308 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...

.TONIGHT...E wind 35 to 50 kt. Seas 18 to 25 ft. Snow and rain.
.SUN...NE wind 25 to 40 kt diminishing to 20 to 30 kt in the
afternoon. Seas 17 to 24 ft. Snow and rain.
.SUN NIGHT...NE wind 20 to 30 kt diminishing to 10 to 25 kt after
midnight. Seas 14 to 18 ft. Snow and rain.
.MON...NE wind 15 to 30 kt. Seas 10 to 15 ft.
.MON NIGHT...E wind 15 to 30 kt. Seas 9 to 15 ft.
.TUE...N wind 15 to 30 kt. Seas 7 to 12 ft.
.WED...E wind 25 to 40 kt. Seas 10 ft.
.THU...S wind 20 to 30 kt. Seas 2 ft.

$$

PKZ414-221400-
Bering Sea Offshore East of 171W-
308 PM AKST Sat Jan 21 2023

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 35 to 50 kt. Seas 14 to 22 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.SUN...NE wind 30 to 40 kt. Seas 13 to 20 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.SUN NIGHT...NE wind 25 to 40 kt. Seas 9 to 16 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.MON...NE wind 20 to 35 kt. Seas 7 to 12 ft.
.MON NIGHT...NE wind 15 to 30 kt. Seas 5 to 10 ft.
.TUE THROUGH WED...N wind 15 to 30 kt. Seas 3 to 8 ft.
.THU...SE wind 20 to 30 kt. Seas 2 ft.

$$

974 
FZAK62 PAFC 221316
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
416 AM AKST Sun Jan 22 2023

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.

PKZ499-230200-
416 AM AKST Sun Jan 22 2023
.SYNOPSIS FOR CENTRAL BERING SEA...

A 983mb low at 58N 166E moves into Siberia through Sun afternoon.
A 958mb low at 46N 167W moves to 53N 163W at 975mb Sun night 
before dissipating over the Alaska Peninsula Mon afternoon. A 
974mb forms at 50N 172W Sun afternoon and moves to 52N 171W at 
984mb by Tue morning.

$$

PKZ411-230200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
416 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...NE wind 25 to 40 kt. Seas 16 to 25 ft. Snow and rain.
.TONIGHT...NE wind 25 to 40 kt. Seas 16 to 24 ft. Freezing spray N of 57N.
Snow.
.MON...NE wind 25 to 40 kt. Seas 13 to 21 ft. Freezing spray N of 57N.
Snow.
.MON NIGHT...NE wind 20 to 35 kt. Seas 12 to 19 ft.
.TUE...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.WED...E wind 35 to 50 kt. Seas 12 to 18 ft.
.THU...SE wind 20 to 35 kt. Seas 2 ft.

$$

PKZ412-230200-
Bering Sea Offshore 171W to 180 and North of 56N-
416 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE wind 30 to 45 kt. Seas 18 to 25 ft. Heavy freezing 
spray N of 57N.
.TONIGHT AND MON...NE wind 30 to 40 kt. Seas 15 to 21 ft. Heavy 
freezing spray N of 57N.
.MON NIGHT...NE wind 30 to 40 kt. Seas 12 to 19 ft.
.TUE THROUGH WED...NE wind 25 to 40 kt. Seas 9 to 14 ft.
.THU...SE wind 20 to 30 kt. Seas 2 ft.

$$

PKZ413-230200-
Bering Sea Offshore 171W to 180 and South of 56N-
416 AM AKST Sun Jan 22 2023

...GALE WARNING TODAY...

.TODAY...NE wind 25 to 40 kt diminishing to 20 to 30 kt in the
afternoon. Seas 19 to 25 ft. Snow and rain.
.TONIGHT AND MON...NE wind 15 to 30 kt. Seas 12 to 18 ft. 
.MON NIGHT...NE wind 15 to 30 kt. Seas 9 to 16 ft.
.TUE...N wind 15 to 30 kt. Seas 7 to 12 ft.
.WED...E wind 25 to 40 kt. Seas 9 to 13 ft.
.THU...S wind 15 to 30 kt. Seas 2 ft.

$$

PKZ414-230200-
Bering Sea Offshore East of 171W-
416 AM AKST Sun Jan 22 2023

...GALE WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE wind 30 to 40 kt. Seas 13 to 21 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.TONIGHT...NE wind 25 to 40 kt. Seas 10 to 17 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.MON...NE wind 20 to 35 kt. Seas 8 to 13 ft. Extreme 
freezing spray N of 58N at a rate of 4 cm per hour or greater may 
rapidly accumulate on vessels. 
.MON NIGHT...NE wind 15 to 30 kt. Seas 6 to 11 ft.
.TUE THROUGH WED...N wind 15 to 30 kt. Seas 4 to 9 ft.
.THU...SE wind 15 to 30 kt. Seas 2 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
553 PM AKST Thu Jan 19 2023

.ANALYSIS AND UPPER LEVELS...
The state is under a large upper level trough with the axis
extending from over the Bering Sea, across the Alaska Peninsula,
and then south of the Gulf of Alaska. This is bringing overall
warm, southerly flow aloft over Southcentral and cold air
advection across the Bering Sea. The main surface low in the east
is close to Kodiak Island this afternoon and bringing rain and
snow to Gulf coastal areas. Satellite imagery also shows another
surface low is spinning near Attu with convective snow showers
wrapped around it. Worth noting is the jet stream running in a
south-to-north orientation up the 150 meridian well to the south
of the Gulf of Alaska. This is the next system to watch and,
though the main energy from this system will head into Southeast
Alaska, it will usher in a more active weather pattern.

&&

.MODEL DISCUSSION...
Models are in reasonable synoptic agreement through the weekend.
However, as has been the case recently, the complex lows are
causing them difficulties. This is mainly impacting the areas
closer to the center of the low complex which mostly means the
Alaska Peninsula through Central Aleutians early next week.
In the shorter term, there is also some smaller embedded lows in
the North Gulf region. Hi-resolution models are indicating some
light snow overnight for Anchorage while larger scale ones such
as the GFS continue to keep the area dry. Anchorage is not the
only place affected, but this discrepancy between model types
has caused the HRRR, NamNest and others to be favored for the
next 24 to 36 hours in Southcentral.

&&

.AVIATION...
PANC...A marginally stronger short-wave trough will approach
Anchorage from the Gulf this evening. While there is some
southeasterly flow coming across the mountains, it doesn't look
strong enough to inhibit precipitation. It's hard to nail down
the exact timing of precipitation, but generally expect periods of
light snow late this afternoon through evening, with MVFR
conditions. There is a chance of IFR conditions if snow comes in
heavier than expected, but it would be very brief. Ceilings will
quickly lift behind the short-wave overnight, with VFR conditions
then persisting through Friday.

&&

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

An elongated trough continues to swing over the Gulf this evening
with multiple shortwaves embedded within. These shortwaves have
been traversing through the area and have caused precipitation
along coastal areas this evening. A band of snow is likely to
develop and track northward towards Anchorage this evening into
tonight. Accumulations with this band will be relatively light
with only a coating to around an inch or so of snow expected.
Tonight through Friday morning, winds will be more southeasterly
and areas along the Gulf coast and through Turnagain Arm could see
a mix of rain and snow and then turn to all snow for Friday night.
Uncertainty rises in relation to what type of precipitation will
fall due to the variability on when the warmer air will move into
those areas and stay. A North Pacific low will track into the Gulf
Friday into Saturday accompanied by gale force winds wrapping
around the aforementioned low's center. Precipitation will remain
mainly along the coast. The exception will be the Copper River
Basin as snow will work its way into the basin late Friday evening
through Friday night. Accumulations are expected to stay relatively
light and any higher accumulations should remain confined to
mountain areas. By the end of the weekend, winds will become more
northerly across the forecast area and will trend temperatures
cooler.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Tonight
through Sunday)...

An upper-level trough with embedded shortwaves will maintain
light snow showers across portions of Southwest Alaska through
Saturday morning. An upper ridge from the Bering Sea will follow
in the wake of the trough and build across the domain, resulting
in dry and clear conditions for the Southwest on Saturday. Clouds
and precipitation return to the Alaska Peninsula starting Saturday
night as a North Pacific low extends its front to the north Gulf
coast. By Sunday afternoon, clouds and increased chances for snow
will spread north into the Southwest mainland, where precipitation
should be lighter and showery in nature. The Alaska Peninsula,
however, can expect to see the heaviest (and steady) snowfall with
this system, especially on the Pacific side due to northeasterly
flow.

Strong northerly cold air advection preceding the ridge will
maintain elevated winds across the Kuskokwim Delta, Bristol Bay,
and Alaska Peninsula tonight into Saturday. Later Saturday
morning, winds will shift northeasterly as the ridge exits to the
northeast and a large North Pacific low lifts into the Bering.
This resulting offshore flow will be quite strong across the
Kuskokwim Delta and Bristol Bay area through Sunday, so the
possibility for winds transporting already existing snow is not
out of the question. In general, cold air combined with stronger
winds will continue to promote very cold apparent temperature
values for the Kuskokwim Delta through Sunday.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 3: Tonight
through Sunday)...

The Bering Sea and Aleutians can expect to see continued active
weather through the short-term forecast. A front currently over
the Western and Southern Bering will weaken through Friday morning
as a compact North Pacific low tracks across the Central Aleutians.
The low will will exit the Western Bering towards Russia on
Saturday morning, with its occluded front lingering over the
Western Bering. With this system, expect rain and/or mixed
precipitation and sustained winds up to storm-force across much of
the western and central domain. A second North Pacific low (this
one still looking stronger than the first) is advertised to lift
north to the Aleutian Chain on Saturday afternoon. Expect rain to
blanket the Chain and Southern Bering on Sunday, as well as strong
winds with gusts up to hurricane-force for the Eastern Aleutians
(likely between Adak and Dutch Harbor on Saturday).

&&.

LONG TERM FORECAST (Days 4 through 7: Monday through Thursday)...

The overall pattern in the extended range continues to be
difficult to resolve, with even some of the larger scale players
in the pattern evolution shifting around considerably in terms of
the run-to-run continuity. One of the biggest changes is that
newer model runs from today are no longer showing the Arctic low
near Siberia moving as far south as it heads towards northern
Alaska over the weekend, resulting in a very different looking
setup across the Bering and Southwest at the start of the extended
period on Monday. Most solutions now keep the low and most of the
bitterly cold Arctic air well removed from the outlook area over
the Interior and North Slope, with the projections showing the low
stretching out to the south and allowing very cold air to spread
into the eastern Bering and Southwest losing support. The lack of
cold, dense air and higher pressure developing across the same
region has resulted in a big shift for the track of a large area
of low pressure expected to move past the Aleutians into the
southern Bering early next week. The consensus from 12z guidance
has shifted the low track significantly north, now showing the low
and a deep upper trough lifting well into the Bering on Monday
and Tuesday rather than staying along or south of the Aleutian
Chain.

The potential for precipitation east of the low extending across
Southwest and Southcentral has shifted notably north as well, with
much higher potential for interior parts of the southern Mainland
to see periods of snow or even rain as deep, southerly flow
pushes warm air and multiple shortwaves inland from the Gulf
through midweek. All of the large, wild shifts in even the broader
scale pattern make it nearly impossible to hash out details for
individual systems, but it does look like a clear tilt towards a
warmer/wetter period for much of next week. There is also an
emerging signal for a very potent low to enter the far western
Bering by Thursday, possibly impacting the western fringes of the
Aleutians/Bering with storm force winds, and perhaps even stronger.
The GFS is by far the most bullish with this scenario, currently
depicting a 930-940 mb Hurricane force low move west of Attu by
Thursday afternoon. The ECMWF/Canadian are much weaker with this
system and are showing the low move much farther west.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Heavy Freezing Spray Warning 160 179 180 185.
         Storm Warning 178.
         Gale Warning 119 130 131 132 150 170 172
                      173 174 175 176 177 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...NS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...AF
LONG TERM...AS