Gale Warning 182, NWS Anchorage, AK

405 
FZAK61 PAFC 191244
OFFAER

Offshore Waters Forecast
National Weather Service Anchorage AK
344 AM AKST Wed Feb 19 2025

Offshore waters forecast for the Gulf of Alaska West of 144W

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.

PKZ399-200115-
344 AM AKST Wed Feb 19 2025
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 992 mb low at 57N 141W moves to 59N 143W at 993 mb Wed
afternoon. It then dissipates near Prince William Sound early Thu
morning. A 970 mb North Pacific low moves to 55N 156W at 980 mb 
by Fri morning. Its front enters the Gulf beginning Wed afternoon.

$$

PKZ351-200115-
Gulf of Alaska Offshore North of 57N and West of 144W-
344 AM AKST Wed Feb 19 2025

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...W wind up to 15 kt becoming S in the afternoon.
Seas 10 ft. Rain.
.TONIGHT...SE wind 15 to 30 kt becoming E 25 to 40 kt after
midnight. Seas 9 to 15 ft.
.THU...E wind 25 to 40 kt diminishing to 15 to 30 kt in the
afternoon. Seas 13 to 18 ft. Rain.
.THU NIGHT...S wind 15 to 30 kt. Seas 13 to 18 ft.
.FRI THROUGH SUN...E wind 10 to 25 kt. Seas 9 to 14 ft.

$$

PKZ352-200115-
Gulf of Alaska Offshore South of 57N North of 55N and West of
144W-
344 AM AKST Wed Feb 19 2025

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind up to 20 kt becoming SE 20 to 35 kt in the
afternoon. Seas 10 ft.
.TONIGHT...E wind 25 to 40 kt. Seas 9 to 16 ft. Rain.
.THU...S wind 15 to 30 kt. Seas 12 to 20 ft. Rain.
.THU NIGHT...S wind 15 to 30 kt. Seas 14 to 21 ft.
.FRI...E wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT THROUGH SUN...NW wind up to 15 kt. Seas 8 to 13 ft.

$$

121 
FZAK61 PAFC 200005
OFFAER

Offshore Waters Forecast
National Weather Service Anchorage AK
305 PM AKST Wed Feb 19 2025

Offshore waters forecast for the Gulf of Alaska West of 144W

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.

PKZ399-201345-
305 PM AKST Wed Feb 19 2025
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 994mb low at 59N 144W dissipates near Prince William Sound 
early Thu morning. A 970 mb North Pacific low moves to 56N 156W at
982mb by Fri morning. Its front lifts across the Gulf through Fri
afternoon.

$$

PKZ351-201345-
Gulf of Alaska Offshore North of 57N and West of 144W-
305 PM AKST Wed Feb 19 2025

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE wind 10 to 25 kt becoming E 25 to 40 kt after
midnight. Seas 9 to 16 ft. Rain.
.THU...E wind 25 to 40 kt diminishing to 15 to 30 kt in the
afternoon. Seas 13 to 18 ft. Rain.
.THU NIGHT...S wind 10 to 25 kt. Seas 14 to 19 ft. Rain showers.
.FRI...SE wind 15 to 25 kt. Seas 12 to 16 ft.
.FRI NIGHT...E wind 10 to 20 kt. Seas 8 to 12 ft.
.SAT THROUGH MON...S wind up to 20 kt. Seas 8 to 13 ft.

$$

PKZ352-201345-
Gulf of Alaska Offshore South of 57N North of 55N and West of
144W-
305 PM AKST Wed Feb 19 2025

...GALE WARNING TONIGHT...

.TONIGHT...E wind 25 to 40 kt. Seas 9 to 16 ft. Rain.
.THU...SE wind 10 to 20 kt becoming S 15 to 30 kt in the
afternoon. Seas 12 to 20 ft. Rain.
.THU NIGHT...S wind 15 to 30 kt becoming 25 kt after midnight.
Seas 15 to 22 ft.
.FRI...SE wind 10 to 25 kt. Seas 11 to 15 ft.
.FRI NIGHT...E wind up to 15 kt. Seas 8 to 11 ft.
.SAT THROUGH MON...SW wind up to 20 kt. Seas 7 to 12 ft.

$$

281 
FZAK61 PAFC 201216
OFFAER

Offshore Waters Forecast
National Weather Service Anchorage AK
316 AM AKST Thu Feb 20 2025

Offshore waters forecast for the Gulf of Alaska West of 144W

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.

PKZ399-210130-
316 AM AKST Thu Feb 20 2025
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 973 mb low at 54N 153W exits towards Bristol Bay at 983 mb by 
Sat morning. Its front lifts across the Gulf through Fri 
afternoon. 

$$

PKZ351-210130-
Gulf of Alaska Offshore North of 57N and West of 144W-
316 AM AKST Thu Feb 20 2025

...GALE WARNING TODAY...

.TODAY...E wind 30 to 45 kt diminishing to 15 to 30 kt in
the afternoon. Seas 14 to 18 ft. Rain.
.TONIGHT...S wind 15 to 30 kt. Seas 15 to 19 ft. Rain showers.
.FRI...SE wind 25 kt. Seas 13 to 17 ft.
.FRI NIGHT...E wind 10 to 20 kt. Seas 8 to 11 ft.
.SAT THROUGH SUN...NE wind up to 20 kt. Seas 8 to 13 ft.
.MON...SE wind 15 kt. Seas 7 to 10 ft.

$$

PKZ352-210130-
Gulf of Alaska Offshore South of 57N North of 55N and West of
144W-
316 AM AKST Thu Feb 20 2025

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 10 to 25 kt becoming S 20 to 35 kt in
the afternoon. Seas 14 to 20 ft. Rain.
.TONIGHT...S wind 20 to 35 kt. Seas 15 to 22 ft.
.FRI...S wind 15 to 25 kt becoming SE up to 20 kt in the
afternoon. Seas 13 ft.
.FRI NIGHT...E wind 10 kt. Seas 7 to 11 ft.
.SAT THROUGH SUN...N wind up to 20 kt. Seas 8 to 13 ft.
.MON...W wind 20 kt. Seas 8 to 11 ft.

$$

631 
FZAK61 PAFC 210001
OFFAER

Offshore Waters Forecast
National Weather Service Anchorage AK
301 PM AKST Thu Feb 20 2025

Offshore waters forecast for the Gulf of Alaska West of 144W

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.

PKZ399-211345-
301 PM AKST Thu Feb 20 2025
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 987 mb low at 55N 154W moves over the Alaska Peninsula for Sat 
morning. Its front wraps over the AKPEN and across the North Gulf 
Coast by Sat afternoon. A 983 mb low near 56N 142W Sat morning moves 
to 57N 144W at 980 mb for Sat afternoon. Its front extends across the
Gulf through Sat afternoon.

$$

PKZ351-211345-
Gulf of Alaska Offshore North of 57N and West of 144W-
301 PM AKST Thu Feb 20 2025

.TONIGHT...S wind 15 to 30 kt. Seas 15 to 19 ft. Rain.
.FRI...SE wind 10 to 25 kt. Seas 12 to 16 ft.
.FRI NIGHT...E wind 15 kt becoming up to 20 kt after midnight.
Seas 10 ft.
.SAT...NE wind up to 20 kt. Seas 6 to 10 ft.
.SAT NIGHT...E wind up to 15 kt. Seas 6 to 10 ft.
.SUN THROUGH TUE...SE wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ352-211345-
Gulf of Alaska Offshore South of 57N North of 55N and West of
144W-
301 PM AKST Thu Feb 20 2025

...GALE WARNING TONIGHT...

.TONIGHT...S wind 20 to 35 kt. Seas 14 to 21 ft.
.FRI...S wind 15 to 25 kt becoming SE up to 20 kt in the
afternoon. Seas 11 to 14 ft.
.FRI NIGHT...E wind 10 to 15 kt. Seas 9 ft.
.SAT...N wind 10 kt. Seas 6 to 10 ft.
.SAT NIGHT...NW wind 10 kt. Seas 7 to 11 ft.
.SUN THROUGH TUE...E wind 10 to 25 kt. Seas 8 to 13 ft.

$$

350 
FZAK61 PAFC 211307
OFFAER

Offshore Waters Forecast
National Weather Service Anchorage AK
407 AM AKST Fri Feb 21 2025

Offshore waters forecast for the Gulf of Alaska West of 144W

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.

PKZ399-220115-
407 AM AKST Fri Feb 21 2025
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

An elongated 982 mb low at 56N 153W moves over the Alaska 
Peninsula and exits into the Bering Sea through Sat morning. A 
982 mb low at 55N 140W Sat morning moves to 57N 149W at 982 mb
for Sun morning.

$$

PKZ351-220115-
Gulf of Alaska Offshore North of 57N and West of 144W-
407 AM AKST Fri Feb 21 2025

.TODAY...SE wind 15 to 25 kt. Seas 12 to 15 ft.
.TONIGHT...E wind 10 to 20 kt. Seas 7 to 10 ft.
.SAT...NE wind 10 to 20 kt. Seas 7 to 10 ft.
.SAT NIGHT...E wind up to 15 kt. Seas 6 to 10 ft.
.SUN THROUGH TUE...E wind up to 15 kt. Seas 6 to 11 ft.

$$

PKZ352-220115-
Gulf of Alaska Offshore South of 57N North of 55N and West of
144W-
407 AM AKST Fri Feb 21 2025

.TODAY...S wind 10 to 25 kt. Seas 10 to 14 ft.
.TONIGHT...E wind 10 to 15 kt. Seas 7 to 11 ft.
.SAT...N wind 10 kt. Seas 6 to 11 ft.
.SAT NIGHT...NW wind 10 kt. Seas 7 to 10 ft.
.SUN...NE wind up to 15 kt. Seas 7 to 12 ft.
.MON THROUGH TUE...W wind up to 15 kt. Seas 5 to 10 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
509 AM AKST Tue Feb 18 2025

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

Most of the active weather this week will be focused along the
coast, where easterly flow will lead to persistent precipitation
through Thursday. An occluded front over the north Gulf coast
this morning will continue to weaken through today. This will
allow precipitation to lighten up tonight off before rejuvenating
again on Wednesday as another surface low moves towards the coast.
The low dissipates as it moves onshore Wednesday night and is
quickly followed by a third front extending off a North Pacific
low approaching the Alaska Peninsula on Thursday. This more
compact surface trough passes over Southcentral Wednesday night-
Thursday and has the potential to carry over more widespread but
light precipitation, especially for locations along the Copper
River Basin.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days
1 through 3: Today through Thursday night)...

The weather pattern across western Alaska will continue to be
active for the next few days, with a steady stream of shortwave
energy from the North Pacific ushering in warmer temperatures to
the Aleutians and Southwest. A low pressure system currently
sitting just south of the Alaska Peninsula (AKPEN) will continue
to move northwestward, traversing into the Bering Sea and bringing
moderate rain showers to the Eastern Aleutians and AKPEN through
tomorrow morning. Confidence has grown that its associated front
will bring a wave of snow showers and gusty winds to the Pribilof
Islands this afternoon. Blowing snow is expected through this
evening, with visibilities dropping below one mile during heavier
showers. Conditions are forecast to improve tonight as winds
diminish.

As the low tracks into the southern Bering Sea throughout the day
on Wednesday, the Pribilofs will likely see an additional round
of snow before transitioning to a rain/snow mix by Wednesday
evening. By Thursday morning, another low moving up from the North
Pacific will skirt south of the AKPen and enter the Western Gulf,
continuing a pattern of showery weather for the AKPen and warm,
southeasterly flow into southwest Alaska for the end of the
period.

&&

.LONG TERM FORECAST (Days 4 through 7) Friday through Monday...

The persistent broad upper level troughing over the Bering Sea
and Aleutians, combined with the strong upper level ridging over
much of the Alaskan Mainland and along the Panhandle, will
continue to dominate the weather pattern through the forecast
period. Equal weight was given between all of the global models
which have come into relative agreement with the larger features.
However, there is some uncertainty about timing and intensity of
the upper level shortwaves and associated weak surface lows.

This pattern will allow for small, fast moving shortwave troughs
and associated surface fronts to quickly move across the Aleutian
Islands and coastal South Central regions. This stubborn weather
pattern will bring a more southerly wind pattern and unseasonably
warmer temperatures across much of the region with higher
precipitation amounts falling mainly as rain along the northern
Gulf coastline and through the Central Aleutians. There is a
potential for heavy snow accumulations in the higher coastal
elevations.

-DD

&&

.AVIATION...

PANC...Light northerly winds and VFR conditions to persist.
Southeasterly winds aloft will produce weak to moderate wind shear
through this afternoon.

&&