Gale Warning 20, NWS Anchorage, AK

960 
FZAK62 PAFC 260034
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
334 PM AKST Thu Jan 25 2018

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.

PKZ499-261415-
334 PM AKST Thu Jan 25 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
High pressure remains in place over the central Bering through 
Fri night. A front over the western Aleutians remains nearly 
stationary through Fri night.

$$

PKZ411-261415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
334 PM AKST Thu Jan 25 2018

...GALE WARNING FRIDAY...

.TONIGHT...SE wind 15 to 30 kt. Seas 9 to 14 ft.
.FRI...SE wind 25 to 40 kt. Seas 11 to 19 ft.
.FRI NIGHT...SE wind 20 to 30 kt. Seas 11 to 19 ft.
.SAT...SE wind 20 to 30 kt. Seas 10 to 14 ft.
.SAT NIGHT...SE wind 25 to 35 kt. Seas 10 to 18 ft.
.SUN THROUGH TUE...E wind 25 to 40 kt. Seas 10 to 18 ft.

$$

PKZ412-261415-
Bering Sea Offshore 171W to 180 and North of 56N-
334 PM AKST Thu Jan 25 2018

.TONIGHT...NE wind 10 to 15 kt. Seas 7 ft. Freezing spray.
.FRI...E wind 10 to 20 kt. Seas 7 ft. Freezing spray.
.FRI NIGHT...E wind 10 to 20 kt. Seas 5 to 10 ft. Freezing spray.
.SAT...E wind 10 to 20 kt. Seas 5 to 9 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN THROUGH TUE...NE wind 15 to 30 kt. Seas 6 to 9 ft.

$$

PKZ413-261415-
Bering Sea Offshore 171W to 180 and South of 56N-
334 PM AKST Thu Jan 25 2018

.TONIGHT...W wind up to 15 kt becoming E up to 20 kt after
midnight. Seas 4 to 7 ft.
.FRI...E wind 10 to 20 kt. Seas 4 to 8 ft.
.FRI NIGHT...E wind 10 to 20 kt. Seas 5 to 8 ft.
.SAT...E wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN THROUGH TUE...NE wind 15 to 30 kt. Seas 7 to 12 ft.

$$

PKZ414-261415-
Bering Sea Offshore East of 171W-
334 PM AKST Thu Jan 25 2018

...GALE WARNING THROUGH FRIDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...N wind 20 to 35 kt. Seas 7 to 12 ft. 
Heavy freezing spray.
.FRI...N wind 25 to 40 kt. Seas 9 to 14 ft. 
Heavy freezing spray.
.FRI NIGHT...N wind 20 to 35 kt. Seas 8 to 13 ft. 
Heavy freezing spray.
.SAT...N wind 20 to 30 kt. Seas 6 to 11 ft.
.SAT NIGHT...N wind 25 kt. Seas 5 to 9 ft.
.SUN THROUGH TUE...N wind 20 to 30 kt. Seas 6 to 11 ft.

$$

498 
FZAK62 PAFC 261254
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
354 AM AKST Fri Jan 26 2018

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.

PKZ499-270200-
354 AM AKST Fri Jan 26 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

High pressure remains in place over the central Bering through 
Sat night. A front over Shemya remains nearly stationary through 
Sat night.

$$

PKZ411-270200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
354 AM AKST Fri Jan 26 2018

...GALE WARNING TODAY...

.TODAY...SE wind 25 to 40 kt. Seas 10 to 18 ft.
.TONIGHT...SE wind 20 to 30 kt. Seas 11 to 18 ft.
.SAT...SE wind 20 to 30 kt. Seas 10 to 14 ft.
.SAT NIGHT...SE wind 25 to 35 kt. Seas 11 to 17 ft.
.SUN THROUGH TUE...E wind 20 to 35 kt. Seas 9 to 17 ft.

$$

PKZ412-270200-
Bering Sea Offshore 171W to 180 and North of 56N-
354 AM AKST Fri Jan 26 2018

.TODAY...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 7 ft. Freezing spray.
.TONIGHT...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W.
Seas 5 to 9 ft. Freezing spray.
.SAT...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 5 to 9 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN THROUGH TUE...NE wind 15 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-270200-
Bering Sea Offshore 171W to 180 and South of 56N-
354 AM AKST Fri Jan 26 2018

.TODAY...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 4 to 8 ft.
.TONIGHT...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 4 to 8 ft.
.SAT...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 7 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN THROUGH TUE...NE wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ414-270200-
Bering Sea Offshore East of 171W-
354 AM AKST Fri Jan 26 2018

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TODAY...N wind 25 to 40 kt. Seas 9 to 14 ft. Heavy freezing spray.
.TONIGHT...N wind 20 to 35 kt. Seas 8 to 13 ft. Heavy freezing 
spray.
.SAT...N wind 20 to 30 kt. Seas 6 to 11 ft. Heavy freezing spray.
.SAT NIGHT...N wind 25 kt. Seas 6 to 10 ft.
.SUN THROUGH TUE...N wind 20 to 30 kt. Seas 6 to 11 ft.

$$

696 
FZAK62 PAFC 270014
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
314 PM AKST Fri Jan 26 2018

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.

PKZ499-271415-
314 PM AKST Fri Jan 26 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
High pressure slowly weakens over the Central Bering through Sun
afternoon. A series of weak North Pacific lows track into
Kamchatka while a nearly stationary front extends across the
Western Aleutians through Sun afternoon.

$$

PKZ411-271415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
314 PM AKST Fri Jan 26 2018

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...SE wind 20 to 30 kt. Seas 11 to 18 ft.
.SAT...SE wind 30 kt. Seas 10 to 14 ft.
.SAT NIGHT...SE wind 25 to 35 kt. Seas 11 to 17 ft.
.SUN...SE wind 25 to 35 kt. Seas 10 to 18 ft.
.SUN NIGHT...E wind 25 to 35 kt. Seas 10 to 17 ft.
.MON THROUGH WED...NE wind 20 to 30 kt. Seas 9 to 17 ft.

$$

PKZ412-271415-
Bering Sea Offshore 171W to 180 and North of 56N-
314 PM AKST Fri Jan 26 2018

.TONIGHT...E wind 10 to 20 kt. Seas 5 to 9 ft. Freezing spray.
.SAT...E wind 10 to 20 kt. Seas 5 to 9 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft. Freezing spray.
.SUN...E wind 20 kt. Seas 7 ft.
.SUN NIGHT...E wind 25 kt. Seas 8 ft.
.MON THROUGH WED...NE wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ413-271415-
Bering Sea Offshore 171W to 180 and South of 56N-
314 PM AKST Fri Jan 26 2018

.TONIGHT...E wind 10 to 20 kt. Seas 4 to 8 ft.
.SAT...E wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN...E wind 15 to 25 kt. Seas 6 to 9 ft.
.SUN NIGHT...E wind 15 to 25 kt. Seas 8 to 11 ft.
.MON THROUGH WED...NE wind 20 to 30 kt. Seas 8 to 11 ft.

$$

PKZ414-271415-
Bering Sea Offshore East of 171W-
314 PM AKST Fri Jan 26 2018

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY...

.TONIGHT...N wind 20 to 35 kt. Seas 8 to 13 ft. Freezing spray.
.SAT...N wind 20 to 30 kt. Seas 6 to 11 ft. Heavy freezing spray.
.SAT NIGHT...N wind 25 kt. Seas 6 to 10 ft. Freezing spray.
.SUN...NE wind 25 kt. Seas 5 to 9 ft.
.SUN NIGHT...NE wind 20 to 30 kt. Seas 6 to 10 ft.
.MON THROUGH WED...NE wind 20 to 30 kt. Seas 6 to 11 ft.

$$

108 
FZAK62 PAFC 271230
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
330 AM AKST Sat Jan 27 2018

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.

PKZ499-280145-
330 AM AKST Sat Jan 27 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

High pressure remains in place over the central Bering through Sun
night. A front over the western Aleutians remains nearly
stationary through Sun night. A front approaches the southeastern
Bering Sun night.

$$

PKZ411-280145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
330 AM AKST Sat Jan 27 2018

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...SE wind 20 to 30 kt. Seas 10 to 14 ft.
.TONIGHT...SE wind 25 to 35 kt. Seas 11 to 17 ft.
.SUN...SE wind 20 to 35 kt. Seas 10 to 18 ft.
.SUN NIGHT...E wind 20 to 30 kt. Seas 9 to 17 ft.
.MON THROUGH WED...NE wind 20 to 35 kt. Seas 8 to 13 ft.

$$

PKZ412-280145-
Bering Sea Offshore 171W to 180 and North of 56N-
330 AM AKST Sat Jan 27 2018

.TODAY...NE wind 10 to 20 kt, except SE 10 to 20 kt W of 174W. 
Seas 6 to 9 ft.
.TONIGHT...NE wind 20 kt, except SE 20 kt W of 174W. Seas 6 to 9 ft.
Freezing spray.
.SUN...E wind 20 kt. Seas 7 ft. Freezing spray.
.SUN NIGHT...NE wind 20 kt. Seas 7 ft.
.MON THROUGH TUE...NE wind 10 to 25 kt. Seas 5 to 8 ft.
.WED...NE wind 35 kt. Seas 9 to 15 ft.

$$

PKZ413-280145-
Bering Sea Offshore 171W to 180 and South of 56N-
330 AM AKST Sat Jan 27 2018

.TODAY...NE wind 10 to 20 kt, except SE 15 to 25 kt W of 174W. 
Seas 7 ft.
.TONIGHT...NE wind 10 to 20 kt, except SE 15 to 25 kt W of 174W. 
Seas 7 ft.
.SUN...E wind 15 to 25 kt. Seas 8 ft.
.SUN NIGHT...E wind 25 kt. Seas 7 ft.
.MON THROUGH TUE...NE wind 20 kt. Seas 6 to 9 ft.
.WED...NE wind 35 kt. Seas 9 to 15 ft.

$$

PKZ414-280145-
Bering Sea Offshore East of 171W-
330 AM AKST Sat Jan 27 2018

.TODAY...N wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray.
.TONIGHT...NE wind 15 to 25 kt. Seas 5 to 9 ft. Freezing spray.
.SUN...NE wind 15 to 25 kt. Seas 5 to 8 ft. Freezing spray.
.SUN NIGHT...NE wind 20 to 30 kt. Seas 5 to 9 ft.
.MON THROUGH WED...NE wind 20 to 35 kt. Seas 6 to 11 ft.

$$

123 
FZAK62 PAFC 280002
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
302 PM AKST Sat Jan 27 2018

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.

PKZ499-281415-
302 PM AKST Sat Jan 27 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
High pressure over the Central Bering slowly weakens through Mon 
afternoon. A series of weak North Pacific lows track across
Kamchatka with the associated front extending over the Western
Aleutians through Mon afternoon.

$$

PKZ411-281415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
302 PM AKST Sat Jan 27 2018

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...SE wind 25 to 35 kt. Seas 11 to 17 ft.
.SUN...SE wind 20 to 35 kt. Seas 10 to 17 ft.
.SUN NIGHT...E wind 20 to 30 kt. Seas 10 to 17 ft. Freezing spray.
.MON...E wind 15 to 30 kt. Seas 9 to 16 ft.
.MON NIGHT...E wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE...E wind 10 to 20 kt. Seas 6 to 10 ft.
.WED THROUGH THU...NE wind 25 to 35 kt. Seas 9 to 14 ft.

$$

PKZ412-281415-
Bering Sea Offshore 171W to 180 and North of 56N-
302 PM AKST Sat Jan 27 2018

.TONIGHT...E wind 15 to 25 kt. Seas 6 to 9 ft. Freezing spray.
.SUN...E wind 20 kt. Seas 7 ft. Freezing spray.
.SUN NIGHT...E wind 20 kt. Seas 7 ft. Freezing spray.
.MON...NE wind 10 to 20 kt. Seas 5 to 8 ft.
.MON NIGHT...N wind 10 to 20 kt. Seas 6 ft.
.TUE...NE wind 15 to 25 kt. Seas 6 ft.
.WED THROUGH THU...E wind 35 kt. Seas 9 to 16 ft.

$$

PKZ413-281415-
Bering Sea Offshore 171W to 180 and South of 56N-
302 PM AKST Sat Jan 27 2018

.TONIGHT...E wind 15 to 25 kt. Seas 8 ft.
.SUN...E wind 25 kt. Seas 8 ft.
.SUN NIGHT...E wind 25 kt. Seas 8 ft.
.MON...NE wind 20 kt. Seas 6 to 9 ft.
.MON NIGHT...NE wind 20 kt. Seas 7 ft.
.TUE...NE wind 20 kt. Seas 7 ft.
.WED THROUGH THU...E wind 35 kt. Seas 9 to 15 ft.

$$

PKZ414-281415-
Bering Sea Offshore East of 171W-
302 PM AKST Sat Jan 27 2018

.TONIGHT...NE wind 15 to 25 kt. Seas 5 to 10 ft. Freezing spray.
.SUN...NE wind 15 to 25 kt. Seas 5 to 8 ft. Freezing spray.
.SUN NIGHT...NE wind 25 kt. Seas 6 to 10 ft. Freezing spray.
.MON...N wind 25 kt. Seas 6 to 11 ft.
.MON NIGHT...N wind 25 kt. Seas 5 to 9 ft.
.TUE THROUGH THU...E wind 25 to 35 kt. Seas 6 to 11 ft.

$$

213 
FZAK62 PAFC 281230
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
330 AM AKST Sun Jan 28 2018

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.

PKZ499-290145-
330 AM AKST Sun Jan 28 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

High pressure persists over the Central Bering through Tue morning.
A weak front moves over the Western Aleutians by Tue morning.

$$

PKZ411-290145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
330 AM AKST Sun Jan 28 2018

...GALE WARNING TODAY...

.TODAY...SE wind 20 to 35 kt. Seas 10 to 17 ft.
.TONIGHT...E wind 20 to 30 kt. Seas 9 to 17 ft. Freezing spray.
.MON...E wind 10 to 25 kt. Seas 9 to 16 ft. Freezing spray.
.MON NIGHT...E wind 10 to 20 kt. Seas 7 to 12 ft.
.TUE THROUGH WED...E wind 15 to 30 kt. Seas 5 to 10 ft.
.THU...NE wind 25 to 35 kt. Seas 12 to 15 ft.

$$

PKZ412-290145-
Bering Sea Offshore 171W to 180 and North of 56N-
330 AM AKST Sun Jan 28 2018

.TODAY...E wind 20 kt. Seas 7 ft. Freezing spray.
.TONIGHT...E wind 20 kt. Seas 7 ft. Freezing spray.
.MON...NE wind 10 to 20 kt. Seas 5 to 8 ft. Freezing spray.
.MON NIGHT...N wind 10 to 20 kt. Seas 6 ft.
.TUE THROUGH WED...NE wind 15 to 30 kt. Seas 6 to 11 ft.
.THU...E wind 35 kt. Seas 11 to 16 ft.

$$

PKZ413-290145-
Bering Sea Offshore 171W to 180 and South of 56N-
330 AM AKST Sun Jan 28 2018

.TODAY...E wind 20 kt. Seas 8 ft.
.TONIGHT...E wind 20 kt. Seas 8 ft.
.MON...NE wind 20 kt. Seas 7 ft.
.MON NIGHT...NE wind 20 kt. Seas 7 ft.
.TUE THROUGH THU...E wind 20 to 30 kt. Seas 8 to 13 ft.

$$

PKZ414-290145-
Bering Sea Offshore East of 171W-
330 AM AKST Sun Jan 28 2018

.TODAY...NE wind 15 to 25 kt. Seas 6 ft. Freezing spray.
.TONIGHT...NE wind 15 to 25 kt. Seas 6 to 10 ft. Freezing spray.
.MON...N wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray.
.MON NIGHT...N wind 20 to 30 kt. Seas 6 to 11 ft.
.TUE THROUGH THU...E wind 20 to 30 kt. Seas 7 to 12 ft.

$$

592 
FZAK62 PAFC 290021
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
321 PM AKST Sun Jan 28 2018

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.

PKZ499-291415-
321 PM AKST Sun Jan 28 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
High pressure persists over the Central Bering through Tue
afternoon. A weak front moves over the eastern Aleutians Mon 
morning then dissipates Tue morning.

$$

PKZ411-291415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
321 PM AKST Sun Jan 28 2018

.TONIGHT...E wind 20 to 30 kt. Seas 9 to 16 ft.
.MON...E wind 10 to 25 kt. Seas 9 to 16 ft.
.MON NIGHT...E wind up to 20 kt becoming 15 kt after midnight.
Seas 7 to 12 ft.
.TUE...E wind 15 kt. Seas 6 to 10 ft.
.TUE NIGHT...NE wind 20 kt. Seas 6 ft.
.WED...E wind 20 to 30 kt. Seas 6 to 9 ft.
.THU THROUGH FRI...E wind 20 to 35 kt. Seas 10 to 16 ft.

$$

PKZ412-291415-
Bering Sea Offshore 171W to 180 and North of 56N-
321 PM AKST Sun Jan 28 2018

.TONIGHT...E wind 20 kt. Seas 7 ft. Freezing spray.
.MON...NE wind 10 to 20 kt. Seas 6 ft. Freezing spray.
.MON NIGHT...N wind 10 to 20 kt. Seas 6 ft. Freezing spray.
.TUE...N wind 20 kt. Seas 5 ft.
.TUE NIGHT...NE wind 15 to 25 kt. Seas 5 ft.
.WED THROUGH FRI...E wind 20 to 35 kt. Seas 9 to 14 ft.

$$

PKZ413-291415-
Bering Sea Offshore 171W to 180 and South of 56N-
321 PM AKST Sun Jan 28 2018

.TONIGHT...E wind 25 kt. Seas 7 ft.
.MON...NE wind 20 kt. Seas 8 ft.
.MON NIGHT...NE wind 15 to 25 kt. Seas 6 to 9 ft.
.TUE...NE wind 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...NE wind 15 to 25 kt. Seas 7 ft.
.WED THROUGH FRI...E wind 20 to 30 kt. Seas 9 to 14 ft.

$$

PKZ414-291415-
Bering Sea Offshore East of 171W-
321 PM AKST Sun Jan 28 2018

.TONIGHT...NE wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray.
.MON...N wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray.
.MON NIGHT...N wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray.
.TUE...N wind 20 to 30 kt. Seas 6 to 11 ft.
.TUE NIGHT...NE wind 20 to 30 kt. Seas 5 to 9 ft.
.WED THROUGH FRI...E wind 20 to 30 kt. Seas 7 to 12 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
448 PM AKST Wed Jan 24 2018

.ANALYSIS AND UPPER LEVELS...
The 250 mb upper level pattern remains very similar today compared
to the previous few days, with an upper level trough over the
mainland part of the state and a strong ridge over the Bering Sea.
The trough has shifted eastward some which is what has pushed the
light snowfall eastward and over the Talkeetna mountains. This
low will move southward over the next few days and bring colder
temperatures along with it. At the surface, the pressure gradient
along the north Gulf coast will continue to increase and bring
gusty outflow winds. A complex surface low is developing in the
eastern Gulf of Alaska and will rotate into the northern Gulf
late Thursday. The surface high remains centered over the Central
Aleutians and is producing a tight pressure gradient between this
high and the developing Gulf low.

&&

.MODEL DISCUSSION...
Models have all settled on the track of the 500 mb upper level
low in the Interior moving to around Kodiak Thursday evening and
then continuing to move southward. All models are indicating the
upper level ridge in the Bering Sea will persist well into next
week. The surface low moving into the eastern Gulf of Alaska
tonight and tomorrow will be complex in nature with more than one
center. The strongest center location is similar on the different
models, but with a cold system such as this, there can be small
but potent lows that develop in the Gulf off the northwest winds.
The NAM is trying hard to pinpoint each of these lows but is
changing the locations with each run.

&&

.AVIATION...
PANC...VFR conditions will continue but there may be periods
where ceiling heights drop below 5000 ft through the night.
Northerly winds are going to persist through tomorrow.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days Today and Thursday)...
Brutally cold air has moved into Southcentral and many locations
will see single digit highs or lower. The potential fly in the
ointment will be over the Anchorage Bowl and the Mat-Su Valleys
where cloud coverage will come into play. Where the clouds clear,
expect strong radiational cooling and bone chilling temperatures.
If the clouds linger, the temps might remain above the zero degree
threshold. A Wind Chill Advisory along the Parks Highway from
Cantwell and through Broad Pass has been issued for tonight, where
some of the strongest winds are combining with the cold air.

The longwave pattern features a ridge over the Bering and a
trough extending from the North Slope and into the Gulf Of Alaska.
As time elapses, expect the upper low that has been over the
interior to drop southward and across the AKPEN. The strong
temperature gradient along the Aleutian Range will persist through
this forecast package resulting in strong gap winds. Gale to
storm force winds along with rough seas will continue over the
western Gulf through Friday. However, as the aforementioned upper
low nears Kodiak the winds over the Gulf of Alaska and Prince
William Sound will turn easterly. The focus will be the potential
formation of a barrier jet south of Cordova and in the vicinity of
Hinchinbrook Island. As the flow aloft becomes more easterly
across the Gulf and the surface low track recurves, moisture will
spread into Eastern Prince William Sound, with potential for a
prolonged period of snow accumulation. The best bet for new snow
will be Cordova and the adjacent areas to the north and east.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2: Thursday and
Friday)...
An upper level low currently on the south side of the Brooks
Range is the primary driver of the weather across Southwest
Alaska. The upper level low represents the core of the coldest air
over the state. It is forecast to track south over the next 36
hours to the west side of the Alaska Range. Thus, temperatures
will continue falling into Thursday night. As the low moves
southward over interior Southwest Alaska, surface ridging and high
pressure will also build southward through the northern Bering.
This large difference in pressure is expected to kick up the winds
Thursday night just as the coldest air is moving through
Southwest Alaska, especially through the Kuskokwim Delta. For that
reason, inland colder locations are under a Wind Chill Advisory
Thursday night into Friday. For the Lower Kuskokwim Valley and
Bristol Bay, winds will be just low enough that any wind chills
meeting criteria should be brief and isolated, though widespread
wind chills between 30 and 40 below are expected.

Behind the low during the day Friday, temperatures should begin a
healthy rebound back closer to average over the Lower Kuskokwim
Valley and Bristol Bay. This will be in part due to the
expectation of additional cloud cover holding in what little
surface heating there is. However for the Kuskokwim Delta,
continued cold advection will make temperatures have a very
difficult time moving much during the day Friday, and conditions
meeting wind chill advisory criteria may well continue past noon.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2: Thursday
and Friday)...
As a strong low near Kamchatka lifts northward, it will help
build a broad ridge that has been over the southern Bering
northward across the central Bering. This highly amplified pattern
will help accelerate the polar low over Alaska to the south.
Meanwhile, though the upper level ridge builds northward, it will
be squeezed between the two lows on either side of it, making for
a "skinny ridge". The net effect will be more active weather
developing across the western Bering and western Aleutians as a
front makes a little eastward progress in that area. However, the
ridge is expected to persist in place enough to block any further
eastward progress. It also means that cold advection will continue
for the foreseeable future across the eastern Bering. The non-stop
snow shower activity moving south into the Alaska Peninsula and
eastern Aleutians will also continue. Meanwhile strengthening
winds will lead to continued blowing snow concerns for the
southern Alaska Peninsula through Cold Bay. Due to the showery
nature of the precipitation, it remains unlikely that visibilities
will remain low enough for a long enough period of time to meet
advisory criteria.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The Arctic trough that will dive southward through the Mainland
and into the Gulf late this week will begin tracking into the
North Pacific for the weekend. This will allow for the blocking
ridge that has setup over the Bering to move eastward, bringing
generally clear skies, below normal temperatures and strong gap
winds along the Gulf Coast into early next week. This small change
in the pattern will limit chances of precipitation to just the
Gulf Coast late Friday-Saturday, as the remnants of a weak low
moving through the North Gulf diminishes. After this occurs,
little in the way of precipitation is expected throughout the
Southern Mainland looking into early next week.

For the Eastern Aleutians/Bering, the persistent and gusty
northwest flow and widespread snow showers currently over the area
will come to an end on Saturday as the flow weakens and becomes
easterly. The Western Bering/Aleutians will however see little
overall change to the current pattern as southerly flow will
continue to bring a series of gale force fronts and rain to the
area until this weekend. Model agreement is very good into early
next week depicting a break in the rain/wind as ridging expands
westward.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Wind Chill Advisory 145 155.
MARINE...Heavy Freezing Spray Warning 120 121 126 127 129 130 131
132 136 137 138 139 141 150 160 165 180 181 185.
Storm Warning 130.
Gale Warning 121 127 129 131 132 136 138 150 155 160 165 172 178
180.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...PS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JW
LONG TERM...DEK