Storm Warning 76, NWS Anchorage, AK

007 
FZAK62 PAFC 171218
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
418 AM AKDT Fri Apr 17 2026

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.

PKZ499-180245-
418 AM AKDT Fri Apr 17 2026
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1008 mb low at 59N 165W moves inland Fri afternoon. A 982 mb 
North Pacific low at 49N 172E moves to 54N 177E at 967 mb Sat 
morning then to 56N 180 at 970 mb by Sun morning. A front moves 
through the eastern Aleutians and Alaska Peninsula Sat into Sun.

$$

PKZ411-180245-
Bering Sea Offshore West of 180 and East of the International
Dateline-
418 AM AKDT Fri Apr 17 2026

...STORM WARNING TONIGHT AND SATURDAY...

.TODAY...E wind 15 to 30 kt increasing to 30 to 45 kt in the
afternoon. Seas 6 ft building to 8 to 13 ft in the afternoon. Snow
and rain.
.TONIGHT...NE wind 35 to 50 kt. Seas 13 to 21 ft. Widespread rain
and snow showers.
.SAT...N wind 35 to 50 kt. Seas 14 to 26 ft. Widespread snow and
rain showers.
.SAT NIGHT...N wind 30 to 45 kt. Seas 14 to 26 ft.
.SUN...N wind 30 to 45 kt. Seas 14 to 22 ft.
.MON THROUGH TUE...E wind 10 to 25 kt. Seas 8 to 13 ft.

$$

PKZ412-180245-
Bering Sea Offshore 171W to 180 and North of 56N-
418 AM AKDT Fri Apr 17 2026

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...E wind up to 15 kt increasing to 15 to 30 kt in the
afternoon. Seas 3 to 7 ft. Snow.
.TONIGHT...E wind 30 to 45 kt. Seas 8 to 16 ft. Snow and rain.
.SAT...SE wind 30 to 45 kt diminishing to 20 to 35 kt in the
afternoon. Seas 12 to 20 ft. Snow.
.SAT NIGHT...SE wind 20 to 35 kt. Seas 13 to 18 ft.
.SUN...N wind 25 to 40 kt. Seas 11 to 18 ft.
.MON...NE wind 15 to 25 kt. Seas 7 to 12 ft.
.TUE...E wind 15 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-180245-
Bering Sea Offshore 171W to 180 and South of 56N-
418 AM AKDT Fri Apr 17 2026

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 15 to 30 kt becoming SE 30 to 45 kt in the
afternoon. Seas 6 to 11 ft. Snow and rain.
.TONIGHT...S wind 30 to 45 kt. Seas 11 to 19 ft. Snow.
.SAT...S wind 25 to 40 kt. Seas 14 to 22 ft.
.SAT NIGHT...SW wind 30 to 45 kt. Seas 14 to 20 ft.
.SUN...W wind 35 to 50 kt. Seas 14 to 22 ft.
.MON THROUGH TUE...E wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ414-180245-
Bering Sea Offshore East of 171W-
418 AM AKDT Fri Apr 17 2026

.TODAY...W wind 10 to 20 kt. Seas in ice free waters 3 to 6 ft. 
Patchy fog and freezing fog.
.TONIGHT...SE wind 15 to 30 kt. Seas in ice free waters 3 to 8 ft.
Snow and rain.
.SAT...S wind 15 to 30 kt. Seas in ice free waters 5 to 10 ft.
Snow
with rain.
.SAT NIGHT...S wind 15 to 30 kt. Seas in ice free waters 6 to 11
ft.
.SUN...SW wind 30 to 45 kt. Seas in ice free waters 9 to 14 ft.
.MON...NW wind 25 to 40 kt. Seas in ice free waters 9 to 14 ft.
.TUE...E wind 10 to 25 kt. Seas in ice free waters 3 to 7 ft.

$$

942 
FZAK62 PAFC 180030
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
430 PM AKDT Fri Apr 17 2026

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.

PKZ499-181230-
430 PM AKDT Fri Apr 17 2026
.SYNOPSIS FOR CENTRAL BERING SEA...

A 972 mb North Pacific low at 52N 174E moves to 56N 179E at 966 
mb Sat afternoon then to 58N 174W at 978 mb by Sun afternoon. A 
front moves through the eastern Aleutians and Alaska Peninsula Sat
into Sun.

$$

PKZ411-181230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
430 PM AKDT Fri Apr 17 2026

...STORM WARNING THROUGH SATURDAY...

.TONIGHT...NE wind 35 to 50 kt. Seas 13 to 21 ft. Widespread rain
and snow showers.
.SAT...N wind 35 to 50 kt. Seas 14 to 26 ft. Widespread rain and
snow showers.
.SAT NIGHT...N wind 30 to 45 kt. Seas 14 to 26 ft. Snow.
.SUN...N wind 30 to 45 kt. Seas 17 to 24 ft.
.SUN NIGHT...N wind 15 to 30 kt. Seas 12 to 17 ft.
.MON THROUGH WED...NE wind 10 to 25 kt. Seas 9 to 17 ft.

$$

PKZ412-181230-
Bering Sea Offshore 171W to 180 and North of 56N-
430 PM AKDT Fri Apr 17 2026

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 30 to 45 kt. Seas 8 to 16 ft. Snow and rain.
.SAT...SE wind 30 to 45 kt diminishing to 20 to 35 kt in the
afternoon. Seas 12 to 20 ft. Widespread snow showers.
.SAT NIGHT...SE wind 20 to 35 kt. Seas 13 to 18 ft. Snow.
.SUN...E wind 25 to 40 kt. Seas 13 to 18 ft.
.SUN NIGHT...NW wind 15 to 30 kt. Seas 11 to 17 ft.
.MON THROUGH TUE...E wind 10 to 25 kt. Seas 6 to 11 ft.
.WED...NE wind 25 kt. Seas 11 to 19 ft.

$$

PKZ413-181230-
Bering Sea Offshore 171W to 180 and South of 56N-
430 PM AKDT Fri Apr 17 2026

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 30 to 45 kt. Seas 11 to 19 ft. Snow.
.SAT...S wind 25 to 40 kt. Seas 14 to 22 ft.
.SAT NIGHT...SW wind 25 to 35 kt increasing to 30 to 45 kt after
midnight. Seas 14 to 20 ft. Rain showers and snow showers.
.SUN...W wind 30 to 45 kt. Seas 16 to 23 ft.
.SUN NIGHT...W wind 25 to 40 kt. Seas 13 to 21 ft.
.MON...SE wind 10 to 25 kt. Seas 9 to 14 ft.
.TUE...E wind 15 to 30 kt. Seas 6 to 11 ft.
.WED...NE wind 30 kt. Seas 17 to 22 ft.

$$

PKZ414-181230-
Bering Sea Offshore East of 171W-
430 PM AKDT Fri Apr 17 2026

...GALE WARNING SATURDAY...

.TONIGHT...SE wind 15 to 30 kt. Seas in ice free waters 3 to 8 ft.
Snow and rain.
.SAT...S wind 20 to 35 kt. Seas in ice free waters 5 to 10 ft.
Snow with rain.
.SAT NIGHT...S wind 15 to 30 kt. Seas in ice free waters 6 to 11
ft. Rain and snow.
.SUN...SW wind 25 to 40 kt. Seas in ice free waters 8 to 13 ft.
.SUN NIGHT...SW wind 30 to 45 kt. Seas in ice free waters 9 to
14 ft.
.MON...W wind 20 to 35 kt. Seas in ice free waters 9 to 14 ft.
.TUE THROUGH WED...E wind 15 to 30 kt. Seas in ice free waters 5
to 10 ft.

$$

979 
FZAK62 PAFC 181227
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
427 AM AKDT Sat Apr 18 2026

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.

PKZ499-190045-
427 AM AKDT Sat Apr 18 2026
.SYNOPSIS FOR CENTRAL BERING SEA...

A 962 mb low at 54N 177E moves to 57N 177E at 968 mb by Sun 
morning and continues to 58N 172W at 996 mb by Mon morning. Its
front moves east through the Aleutian Chain and pushes inland by 
Sun morning. A 992 mb low arrives at 51N 175E by Mon morning. 

$$

PKZ411-190045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
427 AM AKDT Sat Apr 18 2026

...GALE WARNING THROUGH SUNDAY...

.TODAY...N wind 30 to 45 kt. Seas 16 to 24 ft. Widespread rain and
snow showers.
.TONIGHT...NW wind 30 to 45 kt. Seas 16 to 24 ft. Widespread snow
and rain showers.
.SUN...NW wind 25 to 40 kt. Seas 15 to 23 ft. Widespread snow and 
rain showers.
.SUN NIGHT...N wind 10 to 25 kt. Seas 10 to 16 ft.
.MON THROUGH TUE...NE wind 25 to 40 kt. Seas 11 to 19 ft.
.WED...N wind 30 to 45 kt. Seas 18 to 24 ft.

$$

PKZ412-190045-
Bering Sea Offshore 171W to 180 and North of 56N-
427 AM AKDT Sat Apr 18 2026

...GALE WARNING TODAY AND SUNDAY...

.TODAY...SE wind 30 to 45 kt diminishing to 20 to 30 kt in the
afternoon. Seas 13 to 20 ft. Rain.
.TONIGHT...SE wind 15 to 30 kt. Seas 15 to 20 ft. Widespread rain
and snow showers.
.SUN...S wind 25 to 40 kt. Seas 15 to 23 ft. Widespread rain and
snow showers.
.SUN NIGHT...NW wind 20 to 35 kt. Seas 13 to 21 ft.
.MON...NE wind 15 to 30 kt. Seas 8 to 13 ft.
.TUE THROUGH WED...NE wind 30 to 45 kt. Seas 12 to 20 ft.

$$

PKZ413-190045-
Bering Sea Offshore 171W to 180 and South of 56N-
427 AM AKDT Sat Apr 18 2026

...GALE WARNING THROUGH SUNDAY...

.TODAY...S wind 25 to 40 kt. Seas 16 to 22 ft. Rain.
.TONIGHT...SW wind 30 to 45 kt. Seas 17 to 27 ft. Widespread rain
and snow showers.
.SUN...SW wind 35 to 45 kt. Seas 20 to 28 ft. Snow showers and
widespread rain showers.
.SUN NIGHT...SW wind 20 to 35 kt. Seas 13 to 21 ft.
.MON...SE wind 15 to 30 kt. Seas 9 to 14 ft.
.TUE...E wind 25 to 40 kt. Seas 11 to 19 ft.
.WED...NW wind 35 kt. Seas 13 to 21 ft.

$$

PKZ414-190045-
Bering Sea Offshore East of 171W-
427 AM AKDT Sat Apr 18 2026

...GALE WARNING THROUGH SUNDAY...

.TODAY...SE wind 25 to 35 kt. Seas in ice free waters 7 to 12 ft.
Rain.
.TONIGHT...S wind 20 to 35 kt. Seas in ice free waters 7 to 12 ft.
Rain.
.SUN...SW wind 25 to 40 kt. Seas in ice free waters 9 to 17 ft.
Snow
showers.
.SUN NIGHT...SW wind 25 to 35 kt. Seas in ice free waters 8 to
16 ft.
.MON...SW wind 15 to 30 kt. Seas in ice free waters 7 to 12 ft.
.TUE...SE wind 20 to 35 kt. Seas in ice free waters 4 to 9 ft.
.WED...S wind 20 to 30 kt. Seas in ice free waters 7 to 12 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
535 AM AKDT Thu Apr 16 2026

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Thursday through Saturday night)...

Southwesterly flow aloft is the story over Southcentral today with
an upper level trough and surface low in the Bering Sea. There is
enough moisture to bring in areas of snow this morning which will
mix with or turn to rain depending on region and elevation. It is
just a generally sloppy pattern until the upper level trough moves
through the region on Saturday.

While Cook Inlet and the Susitna Valley will get some snow this
morning, accumulations are expected to be low. However, there are
some areas toward the Alaska Range that have potential for some
more meaningful snowfall amounts. The main area of concern is
along the Richardson highway from around Paxson northward through
Isabel Pass. This region is likely to see a long duration light
snowfall that produces 6 or more inches over a day or two. There
remains a bit of model uncertainty with the strength and timing of
the upper level trough and how much lift it will provide in that
area. There is also a chance for the snowfall to become heavier
Friday afternoon through Friday night with higher accumulations
occurring as well as the snowfall lingering into Saturday
afternoon if the upper level trough takes longer to move through.

&&

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

Currently, widespread light mixed precipitation is being observed
across Southwest Alaska. This is due to many weak shortwaves
passing through the region. Diurnal swings in temperature are
allowing for snow at night and a mix of rain/snow or rain during
the day. Wind speeds will remain lighter for inland areas and
mostly sub-small craft for the Bering except for the western
Aleutians. This pattern will persist through the rest of the day
and into Friday morning.

Changes arise on Friday when an unseasonably strong low moves
into the Bering. Storm force winds and moderate to heavy
precipitation are expected for the Adak region as the sting jet
moves over the area. Precipitation may start as mixed before
transitioning to all rain as warm air advection moves in. The low
will slowly move east over the weekend. The leading front
will allow for the potential for blowing snow in the Pribilof
Islands for a few hours early Saturday morning before temperatures
warm. A small period of blowing snow is allow possible for
coastal areas in the Kuskokwim Delta Saturday afternoon as the
front pushes inland. Despite the warm air advection in front of
the low, cold air will wrap around the back of the low, allowing
for higher instability and showery precipitation to form over the
Bering as the low moves east. Looking ahead into Monday reveals an
Arctic trough dipping into Southwest Alaska, potentially cooling
low temperatures into the teens and single digits in the Southwest
Mainland by Monday night. Lingering precipitation from the strong
low means widespread snowfall is possible on Monday.

-JAR

&&

.LONG TERM FORECAST (Days 4 through 7: Saturday through Tuesday)...

An active pattern persists Saturday through Tuesday. An
unseasonably strong North Pacific storm will have crossed into the
Bering Sea on Friday, bringing heavy rain and storm-force winds
to the Aleutian Chain as far east as Unalaska; meanwhile,
precipitation continues across Southcentral Alaska, maintaining
cloudy skies and precipitation through Saturday (some areas may
see a short respite late Saturday).

By Sunday and into Monday, the low in the Bering Sea will merge
into the broad low-pressure system anchored over Mainland Alaska,
pulling cooler air back into the region from the north and
spreading moderate precipitation across Southcentral;
precipitation will likely change into a rain-snow mix across
southern Alaska. While specific timing remains unclear at this
time, the overall pattern suggests continued unsettled weather
for both Southcentral and Southwest Alaska with temperatures
likely dropping below seasonal averages.

AB

&&

.AVIATION...

PANC...Light snow will linger in the area through mid morning as
ceilings are maintained at MVFR to VFR levels. Cloud cover
remains below 5000 ft throughout the day before a rain/snow mix
moves into the region this afternoon. Ceilings will gradually
decrease from VFR to MVFR this afternoon then to IFR this evening.
Once precip moves in, visibilities will slightly drop as well.
Mixed precip transitions to all snow this evening as well and is
maintained overnight tonight.

PA

&&