Gale Warning 789, NWS Anchorage, AK

877 
FZAK62 PAFC 272338
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
238 PM AKST TUE DEC 27 2016

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.

PKZ499-281400-
238 PM AKST TUE DEC 27 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 992 MB LOW NEAR 57N 159W MOVES EAST ACROSS THE ALASKA PENINSULA
THIS EVENING. A FRONT IN THE WESTERN ALEUTIANS MOVES INTO THE
CENTRAL BERING LATE TONIGHT BEFORE MOVING INTO THE EASTERN TO
NORTHERN BERING BY WED AFTERNOON. THIS FRONT MOVES INLAND ALONG
THE SOUTHWEST ALASKA COASTLINE BY WED EVENING. THE BERING/ALEUTIANS
WILL HAVE SOUTHWESTERLY FLOW THROUGH THU EVENING. THE BOGOSLOF
VOLCANO LOCATED NEAR 53.9N 168.0W REMAINS ACTIVE.

$$

PKZ411-281400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
238 PM AKST TUE DEC 27 2016

...STORM WARNING WEDNESDAY...

.TONIGHT...S WIND 30 TO 45 KT. SEAS 8 TO 16 FT BUILDING TO 16 TO
24 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...S WIND 40 TO 55 KT. SEAS 17 TO 32 FT BUILDING TO 29 TO 35
FT IN THE AFTERNOON. RAIN.
.WED NIGHT...SW WIND 30 TO 45 KT. SEAS 23 TO 33 FT. SNOW SHOWERS.
.THU...W WIND 40 KT. SEAS 24 TO 29 FT.
.THU NIGHT...SW WIND 40 TO 55 KT. SEAS 21 TO 31 FT.
.FRI...S WIND 40 TO 55 KT. SEAS 20 TO 32 FT.
.SAT...SW WIND UP TO 20 KT. SEAS 9 TO 17 FT.
.SUN...SW WIND 25 KT. SEAS 12 TO 19 FT.

$$

PKZ412-281400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
238 PM AKST TUE DEC 27 2016

...STORM WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT AFTER
MIDNIGHT. SEAS 7 TO 11 FT.
.WED...S WIND 25 TO 40 KT INCREASING TO 35 TO 50 KT IN THE
AFTERNOON. SEAS 10 TO 18 FT BUILDING TO 15 TO 30 FT IN THE
AFTERNOON. RAIN.
.WED NIGHT...SW WIND 35 TO 50 KT. SEAS 23 TO 34 FT. RAIN.
.THU...SW WIND 30 TO 40 KT. SEAS 23 TO 29 FT.
.THU NIGHT...SW WIND 30 TO 45 KT. SEAS 21 TO 29 FT.
.FRI...S WIND 35 TO 50 KT. SEAS 20 TO 30 FT.
.SAT THROUGH SUN...S WIND 20 TO 35 KT. SEAS 15 TO 23 FT.

$$

PKZ413-281400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
238 PM AKST TUE DEC 27 2016

...STORM WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW WIND 20 TO 35 KT INCREASING TO 30 TO 45 KT AFTER
MIDNIGHT. SEAS 11 TO 19 FT. RAIN WITH SNOW.
.WED...SW WIND 35 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 13 TO 28 FT BUILDING TO 19 TO 34 FT IN THE
AFTERNOON. RAIN.
.WED NIGHT...SW WIND 35 TO 50 KT. SEAS 22 TO 34 FT. RAIN.
.THU...W WIND 35 KT. SEAS 18 TO 26 FT.
.THU NIGHT...SW WIND 25 TO 40 KT. SEAS 16 TO 24 FT.
.FRI THROUGH SUN...S WIND 25 TO 40 KT. SEAS 13 TO 21 FT.

$$

PKZ414-281400-
BERING SEA OFFSHORE EAST OF 171W-
238 PM AKST TUE DEC 27 2016

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.WED...S WIND 15 TO 30 KT BECOMING SW 25 TO 40 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT. RAIN WITH SNOW.
.WED NIGHT...SW WIND 30 TO 45 KT. SEAS 13 TO 27 FT. PATCHY FOG.
.THU...SW WIND 30 TO 45 KT. SEAS 18 TO 28 FT.
.THU NIGHT...W WIND 20 TO 35 KT. SEAS 14 TO 20 FT.
.FRI...S WIND 15 TO 30 KT. SEAS 10 TO 18 FT.
.SAT THROUGH SUN...S WIND 30 TO 40 KT. SEAS 13 TO 21 FT.

$$

605 
FZAK62 PAFC 281253
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
353 AM AKST WED DEC 28 2016

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-
353 AM AKST WED DEC 28 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A WEATHER FRONT OVER THE CENTRAL BERING MOVES INTO SOUTHWEST AK
TONIGHT. A SECOND FRONT ENTERING THE WESTERN BERING REACHES
SOUTHWEST AK THU. A 980 MB LOW NEAR 53N 163E THU AFTERNOON DEEPENS
TO 972 MB NEAR 60N 174E THU NIGHT.

$$

PKZ411-290145-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
353 AM AKST WED DEC 28 2016

...STORM WARNING TODAY...

.TODAY...S WIND 40 TO 55 KT. SEAS 15 TO 30 FT BUILDING TO 26 TO
34 FT IN THE AFTERNOON. RAIN.
.TONIGHT...SW WIND 35 TO 45 KT. SEAS 25 TO 33 FT. SNOW SHOWERS.
.THU...SW WIND 45 KT. SEAS 26 TO 31 FT. SNOW SHOWERS.
.THU NIGHT...SW WIND 35 TO 50 KT. SEAS 24 TO 35 FT.
.FRI...S WIND 30 TO 45 KT. SEAS 19 TO 34 FT.
.SAT...SE WIND 15 TO 30 KT. SEAS 16 TO 24 FT.
.SUN...SW WIND 25 TO 35 KT. SEAS 16 TO 24 FT.

$$

PKZ412-290145-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
353 AM AKST WED DEC 28 2016

...STORM WARNING THROUGH TONIGHT...

.TODAY...S WIND 25 TO 40 KT INCREASING TO 35 TO 50 KT IN THE
AFTERNOON. SEAS 9 TO 17 FT BUILDING TO 16 TO 24 FT IN THE
AFTERNOON. RAIN AND SNOW.
.TONIGHT...SW WIND 35 TO 50 KT. SEAS 20 TO 32 FT. RAIN.
.THU...SW WIND 35 TO 45 KT. SEAS 25 TO 31 FT. SNOW AND RAIN
SHOWERS.
.THU NIGHT...SW WIND 35 TO 50 KT. SEAS 22 TO 31 FT.
.FRI...S WIND 35 TO 50 KT. SEAS 19 TO 34 FT.
.SAT THROUGH SUN...S WIND 25 TO 40 KT. SEAS 17 TO 29 FT.

$$

PKZ413-290145-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
353 AM AKST WED DEC 28 2016

...STORM WARNING THROUGH TONIGHT...

.TODAY...SW WIND 30 TO 45 KT BECOMING S 40 TO 55 KT IN THE
AFTERNOON. SEAS 16 TO 31 FT. RAIN.
.TONIGHT...SW WIND 35 TO 50 KT. SEAS 23 TO 34 FT. RAIN AND SNOW.
.THU...SW WIND 30 TO 40 KT. SEAS 19 TO 26 FT.
.THU NIGHT...SW WIND 30 TO 45 KT. SEAS 17 TO 26 FT.
.FRI THROUGH SUN...S WIND 25 TO 40 KT. SEAS 14 TO 27 FT.

$$

PKZ414-290145-
BERING SEA OFFSHORE EAST OF 171W-
353 AM AKST WED DEC 28 2016

...GALE WARNING THROUGH THURSDAY...

.TODAY...S WIND 15 TO 30 KT INCREASING TO 25 TO 35 KT IN THE
AFTERNOON. SEAS 8 TO 13 FT. RAIN AND SNOW.
.TONIGHT...SW WIND 25 TO 40 KT INCREASING TO 35 TO 45 KT AFTER
MIDNIGHT. SEAS 14 TO 22 FT. PATCHY FOG.
.THU...SW WIND 25 TO 40 KT. SEAS 18 TO 27 FT. RAIN.
.THU NIGHT...W WIND 20 TO 35 KT. SEAS 15 TO 21 FT.
.FRI THROUGH SUN...S WIND 25 TO 40 KT. SEAS 13 TO 21 FT.

$$

212 
FZAK62 PAFC 290000
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
300 PM AKST WED DEC 28 2016

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.

PKZ499-291330-
300 PM AKST WED DEC 28 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A STRONG FRONT OVER THE EASTERN BERING MOVES INTO SOUTHWEST ALASKA
TONIGHT. A SECOND STRONG FRONT OVER THE CENTRAL BERING MOVES INTO
SOUTHWEST ALASKA THU MORNING. A THIRD FRONT ENTERS THE WESTERN
BERING THU AFTERNOON...THEN MOVES TO THE NORTHERN BERING BY FRI
AFTERNOON. A FOURTH FRONT IMPACTS THE CENTRAL AND WESTERN
ALEUTIANS BY FRI AFTERNOON.

$$

PKZ411-291330-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
300 PM AKST WED DEC 28 2016

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW WIND 30 TO 45 KT. SEAS 25 TO 32 FT. SNOW SHOWERS.
.THU...SW WIND 35 TO 45 KT. SEAS 26 TO 30 FT. SNOW SHOWERS.
.THU NIGHT...SW WIND 40 TO 55 KT. SEAS 24 TO 35 FT. RAIN AND SNOW.
.FRI...S WIND 35 TO 50 KT. SEAS 23 TO 35 FT.
.FRI NIGHT...SE WIND 25 TO 40 KT. SEAS 20 TO 25 FT.
.SAT...S WIND 35 TO 50 KT. SEAS 18 TO 26 FT.
.SUN THROUGH MON...SW WIND 25 TO 35 KT. SEAS 15 TO 23 FT.

$$

PKZ412-291330-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
300 PM AKST WED DEC 28 2016

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

.TONIGHT...S WIND 35 TO 50 KT. SEAS 19 TO 32 FT BUILDING TO 27 TO
31 FT AFTER MIDNIGHT. PATCHY FOG. RAIN SHOWERS.
.THU...SW WIND 30 TO 45 KT. SEAS 25 TO 31 FT. SNOW SHOWERS.
.THU NIGHT...SW WIND 40 KT BECOMING 35 TO 50 KT AFTER MIDNIGHT.
SEAS 23 TO 32 FT. RAIN AND SNOW.
.FRI...SW WIND 35 TO 50 KT. SEAS 23 TO 34 FT.
.FRI NIGHT...SE WIND 30 TO 45 KT. SEAS 20 TO 26 FT.
.SAT THROUGH SUN...S WIND 30 TO 45 KT. SEAS 19 TO 29 FT.
.MON...SW WIND 30 KT. SEAS 15 TO 19 FT.

$$

PKZ413-291330-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
300 PM AKST WED DEC 28 2016

...STORM WARNING TONIGHT...

.TONIGHT...S WIND 40 TO 55 KT. SEAS 22 TO 34 FT. PATCHY FOG.
RAIN.
.THU...SW WIND 25 TO 40 KT. SEAS 19 TO 27 FT.
.THU NIGHT...SW WIND 25 TO 35 KT INCREASING TO 30 TO 45 KT AFTER
MIDNIGHT. SEAS 18 TO 25 FT.
.FRI...S WIND 25 TO 40 KT. SEAS 15 TO 26 FT.
.FRI NIGHT...SE WIND 25 TO 40 KT. SEAS 15 TO 21 FT.
.SAT THROUGH SUN...S WIND 30 TO 45 KT. SEAS 16 TO 26 FT.
.MON...SW WIND 20 TO 30 KT. SEAS 12 TO 18 FT.

$$

PKZ414-291330-
BERING SEA OFFSHORE EAST OF 171W-
300 PM AKST WED DEC 28 2016

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW WIND 30 TO 45 KT. SEAS 14 TO 22 FT. PATCHY FOG.
.THU...SW WIND 30 TO 45 KT. SEAS 18 TO 27 FT. PATCHY FOG. RAIN.
.THU NIGHT...W WIND 20 TO 35 KT. SEAS 15 TO 21 FT.
.FRI...SW WIND 20 TO 35 KT. SEAS 13 TO 20 FT.
.FRI NIGHT...SE WIND 30 TO 45 KT. SEAS 13 TO 20 FT.
.SAT...S WIND 35 TO 50 KT. SEAS 16 TO 25 FT.
.SUN THROUGH MON...S WIND 20 TO 30 KT. SEAS 12 TO 20 FT.

$$

070 
FZAK62 PAFC 291244
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
344 AM AKST THU DEC 29 2016

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.

PKZ499-300215-
344 AM AKST THU DEC 29 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 944 MB NORTH KAMCHATKA LOW MOVES TO 69N 176W AT 969 MB FRI
MORNING. THE ASSOCIATED FRONT PUSHES OVER WESTERN ALASKA FRI
MORNING. A 970 MB NORTH PACIFIC LOW MOVES TO 54N 170E AT 954
MB SAT MORNING. THE ASSOCIATED FRONT SWEEPS INTO THE CENTRAL
ALEUTIANS BY SAT MORNING.

$$

PKZ411-300215-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
344 AM AKST THU DEC 29 2016

...STORM WARNING TONIGHT AND FRIDAY...

.TODAY...SW WIND 45 KT. SEAS 26 TO 29 FT. SNOW SHOWERS.
.TONIGHT...SW WIND 40 TO 55 KT. SEAS 24 TO 32 FT. SNOW AND
WIDESPREAD RAIN SHOWERS.
.FRI...SW WIND 40 TO 55 KT BECOMING S 25 TO 40 KT IN THE
AFTERNOON. SEAS 24 TO 34 FT. WIDESPREAD RAIN SHOWERS.
.FRI NIGHT...SE WIND 30 TO 40 KT. SEAS 20 TO 25 FT.
.SAT...S WIND 40 TO 55 KT. SEAS 22 TO 37 FT.
.SUN...SW WIND 30 TO 45 KT. SEAS 16 TO 31 FT.
.MON...SW WIND 30 KT. SEAS 10 TO 14 FT.

$$

PKZ412-300215-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
344 AM AKST THU DEC 29 2016

...STORM WARNING TONIGHT AND FRIDAY...

.TODAY...SW WIND 45 KT. SEAS 25 TO 29 FT. SNOW SHOWERS AND RAIN.
.TONIGHT...SW WIND 40 KT BECOMING 35 TO 50 KT AFTER MIDNIGHT. 
SEAS 24 TO 30 FT.
.FRI...SW WIND 40 TO 55 KT BECOMING S 35 TO 45 KT IN THE
AFTERNOON. SEAS 23 TO 33 FT.
.FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 22 TO 27 FT.
.SAT THROUGH SUN...S WIND 35 TO 50 KT. SEAS 18 TO 33 FT.
.MON...SW WIND 30 KT. SEAS 12 TO 16 FT.

$$

PKZ413-300215-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
344 AM AKST THU DEC 29 2016

...GALE WARNING THROUGH FRIDAY...

.TODAY...SW WIND 30 TO 40 KT. SEAS 20 TO 27 FT.
.TONIGHT...SW WIND 25 TO 35 KT INCREASING TO 30 TO 45 KT AFTER
MIDNIGHT. SEAS 18 TO 25 FT.
.FRI...SW WIND 30 TO 45 KT BECOMING S 25 TO 35 KT IN THE
AFTERNOON. SEAS 16 TO 25 FT.
.FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 16 TO 24 FT.
.SAT THROUGH SUN...S WIND 35 TO 50 KT. SEAS 16 TO 28 FT.
.MON...SW WIND 20 TO 30 KT. SEAS 10 TO 14 FT.

$$

PKZ414-300215-
BERING SEA OFFSHORE EAST OF 171W-
344 AM AKST THU DEC 29 2016

...GALE WARNING THROUGH FRIDAY...

.TODAY...SW WIND 30 TO 45 KT. SEAS 19 TO 28 FT. PATCHY FOG. RAIN.
.TONIGHT...W WIND 25 TO 40 KT. SEAS 16 TO 22 FT.
.FRI...SW WIND 20 TO 35 KT. SEAS 14 TO 20 FT.
.FRI NIGHT...SE WIND 35 TO 50 KT. SEAS 14 TO 22 FT.
.SAT...S WIND 35 TO 50 KT. SEAS 13 TO 28 FT.
.SUN THROUGH MON...SW WIND 15 TO 30 KT. SEAS 9 TO 16 FT.

$$

098 
FZAK62 PAFC 300000
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
300 PM AKST THU DEC 29 2016

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.

PKZ499-301415-
300 PM AKST THU DEC 29 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 956 MB LOW AT 65N 177E MOVES INTO THE ARCTIC OVERNIGHT. A 982
MB LOW AT 52N 162E WILL WEAKEN TO A 987 MB LOW AT 67N 172W FRI
AFTERNOON AND CONTINUES TO MOVE NORTHEAST. A 995 MB LOW AT 45N
163E WILL INTENSIFY TO 982 MB AT 53N 169E FRI AFTERNOON BEFORE
INTENSIFYING TO 954 MB AT 60N 170E SAT AFTERNOON.

$$

PKZ411-301415-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
300 PM AKST THU DEC 29 2016

...STORM WARNING THROUGH FRIDAY...

.TONIGHT...SW WIND 30 TO 45 KT BECOMING S 40 TO 55 KT AFTER
MIDNIGHT. SEAS 24 TO 31 FT. SNOW AND RAIN SHOWERS.
.FRI...SW WIND 40 TO 55 KT BECOMING S 30 TO 45 KT IN THE
AFTERNOON. SEAS 24 TO 33 FT. RAIN AND SNOW SHOWERS.
.FRI NIGHT...SE WIND 40 KT. SEAS 20 TO 26 FT. RAIN.
.SAT...S WIND 40 TO 55 KT. SEAS 20 TO 32 FT.
.SAT NIGHT...SW WIND 35 TO 50 KT. SEAS 20 TO 35 FT.
.SUN...SW WIND 25 TO 40 KT. SEAS 16 TO 24 FT.
.MON...SW WIND 30 KT. SEAS 10 TO 14 FT.
.TUE...S WIND 25 KT. SEAS 9 FT.

$$

PKZ412-301415-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
300 PM AKST THU DEC 29 2016

...STORM WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...SW WIND 40 KT BECOMING 35 TO 50 KT AFTER MIDNIGHT. SEAS
24 TO 30 FT.
.FRI...SW WIND 40 TO 55 KT BECOMING S 35 TO 45 KT IN THE AFTERNOON.
SEAS 23 TO 33 FT.
.FRI NIGHT...S WIND 30 TO 40 KT BECOMING SE WIND 40 TO 50 KT AFTER
MIDNIGHT. SEAS 21 TO 27 FT.
.SAT...S WIND 35 TO 50 KT. SEAS 24 TO 29 FT.
.SAT NIGHT...SW WIND 30 TO 45 KT. SEAS 19 TO 30 FT.
.SUN...S WIND 30 TO 45 KT. SEAS 17 TO 27 FT.
.MON THROUGH TUE...S WIND 30 KT. SEAS 8 TO 16 FT.

$$

PKZ413-301415-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
300 PM AKST THU DEC 29 2016

...STORM WARNING FRIDAY NIGHT...

.TONIGHT...SW WIND 35 KT BECOMING 30 TO 45 KT AFTER MIDNIGHT. SEAS
18 TO 26 FT.
.FRI...S WIND 30 TO 45 KT DIMINISHING TO 25 TO 35 KT IN THE
AFTERNOON. SEAS 16 TO 25 FT.
.FRI NIGHT...SE WIND 35 TO 45 KT INCREASING TO 40 TO 50 KT
AFTER MIDNIGHT. SEAS 17 TO 24 FT. RAIN AND SNOW.
.SAT...S WIND 35 TO 50 KT. SEAS 19 TO 28 FT.
.SAT NIGHT...SW WIND 25 TO 40 KT. SEAS 16 TO 24 FT.
.SUN...S WIND 35 TO 50 KT. SEAS 15 TO 23 FT.
.MON...SW WIND 20 TO 30 KT. SEAS 10 TO 14 FT.
.TUE...SE WIND 15 TO 25 KT. SEAS 7 TO 10 FT.

$$

PKZ414-301415-
BERING SEA OFFSHORE EAST OF 171W-
300 PM AKST THU DEC 29 2016

...STORM WARNING FRIDAY NIGHT...

.TONIGHT...SW WIND 25 TO 35 KT. SEAS 16 TO 23 FT.
.FRI...SW WIND 20 TO 35 KT. SEAS 14 TO 20 FT.
.FRI NIGHT...SE WIND 25 TO 40 KT BECOMING S 35 TO 50 KT AFTER
MIDNIGHT. SEAS 14 TO 22 FT.
.SAT...S WIND 35 TO 50 KT. SEAS 17 TO 27 FT.
.SAT NIGHT...S WIND 30 TO 45 KT. SEAS 16 TO 24 FT.
.SUN THROUGH TUE...S WIND 15 TO 30 KT. SEAS 9 TO 14 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
411 PM AKST Mon Dec 26 2016

.ANALYSIS AND UPPER LEVELS...
A broad upper level trough centered in the eastern Bering continues
to dominate the weather pattern. An associated upper wave is
centered just east of Kodiak Island, and providing support for
a small surface low stacked beneath it. This low and a weak
baroclinic zone along the coast are generating widespread showers.
Meanwhile, the surface low centered near Bethel is supporting
light snow showers. Widespread fog is occurring across Bristol
Bay and the Kuskokwim Delta coast due to broad moist westerly flow
across the eastern Bering. Meanwhile, a shortwave and its
associated surface low are supporting gales across the central
and eastern Aleutian Islands.

&&

.MODEL DISCUSSION...

Models are in excellent synoptic agreement in the short term. Out
west, models are in good agreement on the timing and intensity of
the gusty winds as they push across the eastern Aleutians.
However, there is some discrepancy among models on the location
and intensity of precipitation as the low over the Pribilof
Islands pushes inland towards Bristol Bay. Along the north Gulf
Coast, there is uncertainty as well in precipitation coverage
especially tonight and early tomorrow.

&&

.Aviation...
The sounding this morning indicates that there is enough dryness
in lower levels to prevent most showers from reaching the ground,
and VFR conditions are expected through this evening. By early
Tuesday morning there may be enough moisture for a quick shower
over Anchorage, but generally conditions should remain VFR.&&

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The northern Gulf has a 980 mb low pressure system parked just
south of Seward. This system gradually moves into the Prince
William Sound area heading into Tuesday. As the system tracks
northward look for snow showers to develop on the backside of this
system along the Western Kenai Peninsula from Anchor Point
southward through Homer tonight. Therefore, look for the
possibility of up to 2 inches of snow in the Homer Bluff area as
the inverted trough moves through tonight. Otherwise, the
Southcentral region remains in a showery weather regime, and the
precipitation will mainly affect the northern coastal communities.
Meanwhile, the Anchorage Bowl continues under drier conditions
with northerly flow heading into Tuesday. Look for the Barren
Islands region to have westerly flow as colder air filters into
the area, and will begin to produce gusty westerly winds by
Tuesday night.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
With weak flow aloft, and continued weak onshore flow at the
surface, fog will remain over southwest Alaska until a shortwave
pushes through the area Tuesday. It will come from the northwest
and bring dry air with it helping to clear out cloud cover. Weak
ridging will then move in ahead of the next front.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The weak low in the eastern Bering will push off to the east as it
dissipates bringing showers to the Eastern Aleutians and Alaska
Peninsula. Ridging will follow behind the low and also track east.
Then on Tuesday a strong front will push through the Western
Aleutians from the south bringing a strong push of warm air with
it. The front will move over the Central Aleutians later on
Tuesday and through the Eastern Aleutians and Pribilof Islands by
early Wednesday morning. There will be enough warm air for snow
to transition over to rain as the front passes. Storm force winds
will follow behind the front for areas around the Western and
Central Aleutians.

&&

.LONG TERM FORECAST (Days 3 through 7)...

The longwave pattern continues to amplify from Wednesday afternoon
onward, with strengthening jet streaks on both the upstream and
downstream sides of the upper level ridge that builds ahead of a
strong cyclone moving into the western Bering. This will mean
increasing north to westerly outflow winds with cold advection
from the mainland into the Gulf and adjacent inside waters that
will peak Wednesday evening before winding down as low pressure
moves away from the area.

To the west, as mentioned before a storm-force low and front will
move north and east across the Bering region, and will be
accompanied by a very warm and moist air mass as the strong
southerly jet streak moves in tandem with the surface front. This
will mean a pronounced warm front moving across the Southwest
mainland Wednesday afternoon into the evening, with the potential
for significant accumulations of snow especially for the Kuskokwim
Delta. This will be followed by an unseasonably warm air mass
pushing across the region and changing snow to rain. Additionally,
as the warm air moves across the ice- and snow-covered ground, fog
is likely to form and could pose significant visibility issues
ahead of the main surface cold front.

As this system continues to move into the mainland, most of the
energy will be diverted well north toward northern Alaska;
however, there will still likely be a residual triple-point low
that develops over the Northern Gulf Friday. The exact track and
placement of this low will determine the extent of any light snow
that may impact the Anchorage area at that time.

The remainder of the period through the weekend into next week is
likely to be dominated by a highly-amplified blocking high
pressure system over the Gulf and mainland, with low pressure
systems being shunted well north from the Pacific through the
Bering and into the Arctic. This may allow for rain and warm
temperatures to move unusually far north along the west coast of
Alaska during this time period, while tranquil conditions persist
over Southcentral with strong valley inversions.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Storms 177 178. Gales 150 155 160 170 171 172 173 174 175
176.

&&

SYNOPSIS AND MODEL DISCUSSION...EN
SOUTHCENTRAL ALASKA...PD
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...DK
LONG TERM...CC