Gale Warning 786, NWS Anchorage, AK

574 
FZAK62 PAFC 250043
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
343 PM AKST SAT DEC 24 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.

PKZ499-251345-
343 PM AKST SAT DEC 24 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 966 MB LOW NEAR 55N 166W BECOMES A TROUGH OF LOW PRESSURE SUN
MORNING NEAR THE WEST COAST OF ALASKA. A 964 MB LOW NEAR 58N 176W
MOVES TO 55N 180 AT 966 MB SUN AFTERNOON THEN MOVES TO 56N 166W AT
978 MB MON AFTERNOON. A 974 MB LOW DEVELOPS NEAR 60N 172W LATE SUN
NIGHT AND REMAINS NEARLY STATIONARY THROUGH MON AFTERNOON.

$$

PKZ411-251345-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
343 PM AKST SAT DEC 24 2016

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...NW WIND 15 TO 30 KT. SEAS 11 TO 19 FT.
.SUN...N WIND 20 TO 35 KT. SEAS 14 TO 21 FT. SNOW SHOWERS AND RAIN
SHOWERS.
.SUN NIGHT...N WIND 25 TO 35 KT. SEAS 15 TO 21 FT. AND RAIN
SHOWERS.
.MON...NW WIND 20 TO 30 KT. SEAS 14 TO 19 FT.
.MON NIGHT...NW WIND 15 TO 30 KT. SEAS 11 TO 16 FT.
.TUE...SW WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.WED...S WIND 35 TO 50 KT. SEAS 23 TO 33 FT.
.THU...SW WIND 40 KT. SEAS 18 TO 24 FT.

$$

PKZ412-251345-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
343 PM AKST SAT DEC 24 2016

.TONIGHT...SW WIND 10 TO 25 KT. SEAS 9 TO 14 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.SUN...SW WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.SUN NIGHT...SW WIND 10 TO 25 KT. SEAS 9 TO 15 FT.
.MON...W WIND UP TO 20 KT. SEAS 10 TO 13 FT.
.MON NIGHT...NW WIND 10 TO 25 KT. SEAS 9 TO 13 FT.
.TUE...W WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.WED THROUGH THU...SW WIND 30 TO 45 KT. SEAS 14 TO 29 FT.

$$

PKZ413-251345-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
343 PM AKST SAT DEC 24 2016

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...W WIND 20 TO 35 KT. SEAS 9 TO 16 FT.
.SUN...SW WIND 20 TO 35 KT. SEAS 12 TO 18 FT.
.SUN NIGHT...SW WIND 15 TO 30 KT. SEAS 13 TO 18 FT.
.MON...W WIND 20 TO 35 KT. SEAS 12 TO 20 FT.
.MON NIGHT...W WIND 20 TO 35 KT. SEAS 14 TO 20 FT.
.TUE...W WIND 15 TO 30 KT. SEAS 9 TO 17 FT.
.WED THROUGH THU...SW WIND 30 TO 45 KT. SEAS 16 TO 31 FT.

$$

PKZ414-251345-
BERING SEA OFFSHORE EAST OF 171W-
343 PM AKST SAT DEC 24 2016

.TONIGHT...SW WIND 10 TO 25 KT. SEAS 6 TO 11 FT.
.SUN...SW WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN NIGHT...SW WIND 15 TO 30 KT. SEAS 8 TO 16 FT.
.MON...SW WIND UP TO 20 KT. SEAS 8 TO 13 FT.
.MON NIGHT...W WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.TUE...NW WIND 15 TO 30 KT. SEAS 9 TO 17 FT.
.WED...SW WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.THU...S WIND 25 TO 35 KT. SEAS 16 TO 24 FT.

$$

598 
FZAK62 PAFC 251258
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
358 AM AKST SUN DEC 25 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.

PKZ499-260200-
358 AM AKST SUN DEC 25 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 967 MB LOW NEAR 58N 175W DRIFTS TO 58N 174W AT 970 MB LATE
TONIGHT...THEN MOVES TO 57N 166W AT 984 MB LATE MON NIGHT. A 970 MB
LOW NEAR 58N 161W BECOMES A TROUGH OF LOW PRESSURE THIS MORNING.

$$

PKZ411-260200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
358 AM AKST SUN DEC 25 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...W TO NE WIND 20 TO 35 KT BECOMING N IN THE AFTERNOON.
SEAS 14 TO 20 FT. RAIN SHOWERS AND SNOW SHOWERS.
.TONIGHT...N WIND 25 TO 35 KT. SEAS 15 TO 20 FT.
.MON...NW WIND 20 TO 30 KT. SEAS 14 TO 18 FT.
.MON NIGHT...NW WIND 15 TO 30 KT. SEAS 11 TO 16 FT.
.TUE THROUGH THU...SW WIND 30 TO 45 KT. SEAS 16 TO 31 FT.

$$

PKZ412-260200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
358 AM AKST SUN DEC 25 2016

.TODAY...NE TO SW WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.TONIGHT...NE TO SW WIND 10 TO 25 KT. SEAS 10 TO 15 FT.
.MON...NW WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.MON NIGHT...NW WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.TUE...W WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.WED...S WIND 25 TO 40 KT. SEAS 14 TO 22 FT.
.THU...SW WIND 30 TO 40 KT. SEAS 22 TO 31 FT.

$$

PKZ413-260200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
358 AM AKST SUN DEC 25 2016

...GALE WARNING TODAY AND MONDAY...

.TODAY...SW WIND 25 TO 35 KT. SEAS 10 TO 18 FT.
.TONIGHT...SW WIND 15 TO 30 KT. SEAS 12 TO 18 FT.
.MON...W WIND 20 TO 35 KT. SEAS 12 TO 19 FT.
.MON NIGHT...W WIND 20 TO 35 KT. SEAS 14 TO 19 FT.
.TUE...W WIND 25 TO 40 KT. SEAS 14 TO 22 FT.
.WED THROUGH THU...SW WIND 30 TO 45 KT. SEAS 15 TO 30 FT.

$$

PKZ414-260200-
BERING SEA OFFSHORE EAST OF 171W-
358 AM AKST SUN DEC 25 2016

.TODAY...SW WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.TONIGHT...SW WIND 15 TO 30 KT. SEAS 9 TO 16 FT.
.MON...SW WIND 10 TO 20 KT. SEAS 8 TO 13 FT.
.MON NIGHT...SW WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.TUE...NW WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.WED...SW WIND 15 TO 30 KT. SEAS 10 TO 18 FT.
.THU...SW WIND 25 TO 40 KT. SEAS 17 TO 24 FT.

$$

637 
FZAK62 PAFC 260049
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
349 PM AKST SUN DEC 25 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.

PKZ499-261345-
349 PM AKST SUN DEC 25 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 969 MB LOW NEAR 58N 177W MOVES TO 56N 170W AT 980 MB MON
AFTERNOON...THEN MOVES TO 57N 158W AT 992 MB...THEN MOVES INTO 
THE ALASKA PENINSULA. ANOTHER STRONG FRONT MOVES INTO THE WESTERN
ALEUTIANS TUE.

$$

PKZ411-261345-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
349 PM AKST SUN DEC 25 2016

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 25 TO 35 KT. SEAS 14 TO 19 FT.
.MON...NW WIND 20 TO 30 KT. SEAS 14 TO 18 FT.
.MON NIGHT...NW WIND 15 TO 30 KT. SEAS 11 TO 16 FT.
.TUE...SW WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.TUE NIGHT...S WIND 30 TO 45 KT. SEAS 16 TO 24 FT.
.WED THROUGH THU...SW WIND 35 TO 50 KT. SEAS 17 TO 32 FT.
.FRI...S WIND 20 TO 30 KT. SEAS 14 TO 22 FT.

$$

PKZ412-261345-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
349 PM AKST SUN DEC 25 2016

.TONIGHT...NE TO SW WIND 10 TO 25 KT. SEAS 10 TO 15 FT.
.MON...NE TO SW WIND 10 TO 25 KT. SEAS 10 TO 15 FT.
.MON NIGHT...N WIND 10 TO 25 KT. SEAS 10 TO 15 FT.
.TUE...NW WIND 10 TO 25 KT. SEAS 9 TO 13 FT.
.TUE NIGHT...S WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.WED...S WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.THU THROUGH FRI...SW WIND 25 TO 40 KT. SEAS 17 TO 31 FT.

$$

PKZ413-261345-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
349 PM AKST SUN DEC 25 2016

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 20 TO 35 KT. SEAS 13 TO 18 FT.
.MON...NE TO SW WIND 20 TO 35 KT. SEAS 12 TO 20 FT. SNOW SHOWERS.
.MON NIGHT...NW WIND 20 TO 35 KT. SEAS 13 TO 21 FT. SNOW SHOWERS
AND RAIN SHOWERS.
.TUE...W WIND 20 TO 35 KT. SEAS 11 TO 19 FT.
.TUE NIGHT...SW WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.WED THROUGH THU...SW WIND 30 TO 45 KT. SEAS 15 TO 30 FT.
.FRI...S WIND 20 TO 30 KT. SEAS 13 TO 19 FT.

$$

PKZ414-261345-
BERING SEA OFFSHORE EAST OF 171W-
349 PM AKST SUN DEC 25 2016

.TONIGHT...SW WIND 15 TO 30 KT. SEAS 9 TO 17 FT.
.MON...SW WIND 15 TO 25 KT. SEAS 9 TO 15 FT.
.MON NIGHT...W WIND 10 TO 20 KT. SEAS 8 TO 16 FT.
.TUE...NW WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.TUE NIGHT...W WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.WED...SW WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.THU THROUGH FRI...SW WIND 25 TO 40 KT. SEAS 15 TO 23 FT.

$$

236 
FZAK62 PAFC 261252
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
352 AM AKST MON DEC 26 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.

PKZ499-270230-
352 AM AKST MON DEC 26 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 973 MB LOW NEAR 56N 177W MOVES TO 57N 163W AT 984 MB MON
NIGHT...THEN OVER THE ALASKA PENINSULA TUE AFTERNOON. A STRONG
FRONT MOVES INTO THE WESTERN ALEUTIANS TUE MORNING AND INTO THE
CENTRAL BERING TUE NIGHT. THE ASSOCIATED 987 MB NORTH PACIFIC LOW
MOVES TO 55N 169E AT 970 MB TUE NIGHT.

$$

PKZ411-270230-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
352 AM AKST MON DEC 26 2016

...GALE WARNING TODAY AND TUESDAY...

.TODAY...NW WIND 25 TO 35 KT. SEAS 15 TO 19 FT. SNOW SHOWERS AND
RAIN SHOWERS.
.TONIGHT...NW WIND 15 TO 30 KT. SEAS 11 TO 16 FT.
.TUE...W WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT IN THE
AFTERNOON. SEAS 9 TO 13 FT.
.TUE NIGHT...S WIND 35 TO 50 KT. SEAS 14 TO 22 FT.
.WED THROUGH THU...SW WIND 35 TO 50 KT. SEAS 16 TO 31 FT.
.FRI...S WIND 30 TO 40 KT. SEAS 19 TO 28 FT.

$$

PKZ412-270230-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
352 AM AKST MON DEC 26 2016

.TODAY...N WIND 15 TO 30 KT. SEAS 10 TO 16 FT.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 10 TO 15 FT.
.TUE...NW WIND 15 TO 25 KT DIMINISHING TO UP TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 13 FT.
.TUE NIGHT...S WIND 20 TO 35 KT. SEAS 7 TO 11 FT.
.WED...S WIND 35 TO 50 KT. SEAS 13 TO 28 FT.
.THU THROUGH FRI...S WIND 30 TO 45 KT. SEAS 20 TO 31 FT.

$$

PKZ413-270230-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
352 AM AKST MON DEC 26 2016

...GALE WARNING THROUGH TUESDAY...

.TODAY...W WIND 25 TO 40 KT. SEAS 13 TO 19 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.TONIGHT...NW WIND 25 TO 40 KT. SEAS 13 TO 20 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.TUE...NW WIND 20 TO 35 KT BECOMING W 15 TO 25 KT IN THE
AFTERNOON. SEAS 10 TO 18 FT.
.TUE NIGHT...SW WIND 30 TO 45 KT. SEAS 11 TO 19 FT.
.WED THROUGH THU...SW WIND 35 TO 50 KT. SEAS 17 TO 32 FT.
.FRI...S WIND 20 TO 35 KT. SEAS 15 TO 22 FT.

$$

PKZ414-270230-
BERING SEA OFFSHORE EAST OF 171W-
352 AM AKST MON DEC 26 2016

.TODAY...SW WIND 15 TO 30 KT. SEAS 9 TO 17 FT.
.TONIGHT...W WIND 10 TO 20 KT. SEAS 8 TO 16 FT.
.TUE...NW WIND 15 TO 25 KT. SEAS 9 TO 15 FT.
.TUE NIGHT...W WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.WED THROUGH THU...SW WIND 30 TO 45 KT. SEAS 14 TO 28 FT.
.FRI...SW WIND 15 TO 30 KT. SEAS 13 TO 21 FT.

$$

714 
FZAK62 PAFC 262356
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
256 PM AKST MON DEC 26 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.

PKZ499-271400-
256 PM AKST MON DEC 26 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 979 MB LOW NEAR 56N 173W MOVES TO 57N 164W AT 984 MB LATE
TONIGHT...THEN MOVES OVER THE ALASKA PENINSULA TUE AFTERNOON. A
STRONG FRONT MOVES INTO THE WESTERN ALEUTIANS TUE MORNING AND
MOVES INTO THE CENTRAL BERING TUE NIGHT. THE ASSOCIATED 981 MB
NORTH PACIFIC LOW MOVES TO 54N 167E AT 970 MB TUE NIGHT.

$$

PKZ411-271400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
256 PM AKST MON DEC 26 2016

...STORM WARNING TUESDAY NIGHT...

.TONIGHT...NW DIMINISHING TO 15 TO 30 KT. SEAS 11 TO 16 FT.
.TUE...W WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT IN THE
AFTERNOON. SEAS 8 TO 13 FT.
.TUE NIGHT...SE WIND 25 TO 40 KT BECOMING S 35 TO 50 KT AFTER
MIDNIGHT. SEAS 8 TO 16 FT BUILDING TO 16 TO 24 FT AFTER MIDNIGHT.
RAIN AND SNOW.
.WED...S WIND 35 TO 50 KT. SEAS 17 TO 32 FT.
.WED NIGHT...SW WIND 25 TO 40 KT. SEAS 22 TO 30 FT.
.THU...SW WIND 30 TO 40 KT. SEAS 22 TO 27 FT.
.FRI...S WIND 30 TO 40 KT. SEAS 22 TO 29 FT.
.SAT...S WIND 20 TO 30 KT. SEAS 11 TO 19 FT.

$$

PKZ412-271400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
256 PM AKST MON DEC 26 2016

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...N WIND 15 TO 30 KT. SEAS 10 TO 15 FT.
.TUE...NW WIND 15 TO 25 KT. SEAS 10 TO 13 FT.
.TUE NIGHT...SW WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT AFTER
MIDNIGHT. SEAS 7 TO 11 FT. SNOW.
.WED...S WIND 30 TO 45 KT. SEAS 16 TO 24 FT.
.WED NIGHT...SW WIND 30 TO 45 KT. SEAS 25 TO 32 FT.
.THU THROUGH FRI...S WIND 25 TO 40 KT. SEAS 19 TO 28 FT.
.SAT...S WIND 25 TO 35 KT. SEAS 13 TO 21 FT.

$$

PKZ413-271400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
256 PM AKST MON DEC 26 2016

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...NW WIND 25 TO 40 KT. SEAS 13 TO 20 FT. SNOW SHOWERS AND
RAIN SHOWERS.
.TUE...NW WIND 20 TO 35 KT BECOMING W 15 TO 25 KT IN THE
AFTERNOON. SEAS 10 TO 18 FT.
.TUE NIGHT...SW WIND 20 TO 35 KT INCREASING TO 30 TO 45 KT AFTER
MIDNIGHT. SEAS 11 TO 19 FT. RAIN AND SNOW.
.WED...SW WIND 35 TO 50 KT. SEAS 16 TO 31 FT.
.WED NIGHT...SW WIND 35 TO 50 KT. SEAS 22 TO 34 FT.
.THU...SW WIND 30 TO 45 KT. SEAS 20 TO 27 FT.
.FRI THROUGH SAT...S WIND 20 TO 35 KT. SEAS 13 TO 21 FT.

$$

PKZ414-271400-
BERING SEA OFFSHORE EAST OF 171W-
256 PM AKST MON DEC 26 2016

.TONIGHT...W WIND 10 TO 20 KT. SEAS 8 TO 16 FT.
.TUE...NW WIND 15 TO 30 KT. SEAS 9 TO 15 FT.
.TUE NIGHT...W WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.WED...SW WIND 25 TO 40 KT. SEAS 9 TO 17 FT.
.WED NIGHT...SW WIND 30 TO 45 KT. SEAS 15 TO 23 FT.
.THU...SW WIND 30 TO 45 KT. SEAS 17 TO 27 FT.
.FRI...SW WIND 15 TO 30 KT. SEAS 12 TO 20 FT.
.SAT...SE WIND 30 KT. SEAS 14 TO 21 FT.

$$

976 
FZAK62 PAFC 271256
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
356 AM 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.

PKZ499-280145-
356 AM AKST TUE DEC 27 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 985 MB LOW NEAR 57N 164W MOVES OVER THE ALASKA PENINSULA THIS
AFTERNOON. A FRONT IN THE WESTERN ALEUTIANS MOVES INTO THE
CENTRAL BERING LATE TONIGHT AND EASTERN BERING THROUGH WED NIGHT.
THE ASSOCIATED 991 MB NORTH PACIFIC LOW MOVES TO 54N 168E AT 970
MB TONIGHT...THEN MOVES INLAND OVER EASTERN RUSSIAN WED EVENING AT
945 MB. 

BOGOSLOF VOLCANO LOCATED NEAR 53.9N 168.0W REMAINS ACTIVE.

$$

PKZ411-280145-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
356 AM AKST TUE DEC 27 2016

...STORM WARNING WEDNESDAY...

.TODAY...NW WIND 10 TO 25 KT BECOMING S 20 TO 35 KT IN THE
AFTERNOON. SEAS 8 TO 15 FT.
.TONIGHT...S WIND 30 TO 45 KT. SEAS 9 TO 17 FT BUILDING TO 15 TO
23 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...S WIND 35 TO 50 KT. SEAS 17 TO 32 FT BUILDING TO 27 TO 35
FT IN THE AFTERNOON. RAIN.
.WED NIGHT...SW WIND 30 TO 40 KT. SEAS 22 TO 32 FT.
.THU...SW WIND 30 TO 45 KT. SEAS 20 TO 29 FT.
.FRI...S WIND 30 TO 45 KT. SEAS 20 TO 30 FT.
.SAT...SW WIND UP TO 20 KT. SEAS 10 TO 18 FT.

$$

PKZ412-280145-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
356 AM AKST TUE DEC 27 2016

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...N WIND 15 TO 25 KT BECOMING NW IN THE AFTERNOON. SEAS 8
TO 17 FT.
.TONIGHT...S WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT AFTER
MIDNIGHT. SEAS 7 TO 11 FT.
.WED...S WIND 30 TO 45 KT. SEAS 10 TO 18 FT BUILDING TO 15 TO 30
FT IN THE AFTERNOON. RAIN.
.WED NIGHT...SW WIND 30 TO 45 KT. SEAS 24 TO 33 FT.
.THU...W WIND 25 TO 40 KT. SEAS 22 TO 29 FT.
.FRI...S WIND 30 TO 40 KT. SEAS 19 TO 28 FT.
.SAT...SE WIND 20 TO 35 KT. SEAS 12 TO 20 FT.

$$

PKZ413-280145-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
356 AM AKST TUE DEC 27 2016

...STORM WARNING WEDNESDAY...

.TODAY...NW WIND 20 TO 35 KT BECOMING W 10 TO 25 KT IN THE
AFTERNOON. SEAS 11 TO 19 FT.
.TONIGHT...SW WIND 25 TO 40 KT. SEAS 11 TO 19 FT. RAIN WITH SNOW.
.WED...SW WIND 35 TO 50 KT. SEAS 13 TO 27 FT BUILDING TO 19 TO 33
FT IN THE AFTERNOON. RAIN.
.WED NIGHT...SW WIND 35 TO 50 KT. SEAS 22 TO 34 FT.
.THU...W WIND 25 TO 40 KT. SEAS 17 TO 27 FT.
.FRI THROUGH SAT...S WIND 20 TO 35 KT. SEAS 12 TO 20 FT.

$$

PKZ414-280145-
BERING SEA OFFSHORE EAST OF 171W-
356 AM AKST TUE DEC 27 2016

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 10 TO 25 KT INCREASING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 9 TO 15 FT.
.TONIGHT...W WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.WED...S WIND 15 TO 30 KT BECOMING SW 25 TO 35 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT. RAIN WITH SNOW.
.WED NIGHT...SW WIND 25 TO 40 KT. SEAS 15 TO 23 FT.
.THU...SW WIND 30 TO 45 KT. SEAS 15 TO 28 FT.
.FRI...SW WIND 20 TO 35 KT. SEAS 12 TO 20 FT.
.SAT...SE WIND 30 TO 40 KT. SEAS 15 TO 21 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
427 PM AKST Fri Dec 23 2016

.ANALYSIS AND UPPER LEVELS...
Major shift in the longwave pattern from yesterday as the upper
level trough has shifted eastward and the longwave ridge is
building ahead of the low moving into the Central Aleutians. Upper
level jet shows a strong southerly connection, which is resulting
in a lot of warm air flowing through the Aleutians into the Bering
Sea. In the lower levels, the upper level low in the Aleutians is
well reflected at the surface, and the strong gradient between the
surface low and the building ridge to the east is bringing 70mph
plus winds to the Eastern Aleutians. The mainland is still under
the influencing of ridging at the moment, which means that
freezing fog along Cook Inlet and Bristol Bay has been quite
pervasive this morning.

&&

.MODEL DISCUSSION...
Models have been in fairly good agreement on the position and
strength of the low pressure system moving into the Central
Aleutians. Winds with the warm front through the Aleutians were a
bit weak with the GFS, although the NAM seems to have a better
handle on these. In the east, timing on the front moving into the
area over the weekend has been very consistent, however there is
variability between the models on how quickly the air warms with
the front. This could mean the difference between snow, rain, or a
mix for the eastern Kenai peninsula and Portage Valley. Current
thinking is that the models are underdoing the amount of warm air
moving in and that snowfall will be heavy and wet before switching
to rain at lower elevations.

&&

.AVIATION...
PANC...Fog continues to persist this afternoon with high pressure
overhead and little wind. A brief break is expected this evening
but fog will most likely return after the sun goes down. The next
front moving in should mix the air enough to dissipate the fog but
this is not expected until early tomorrow morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Ridging over Southcentral Alaska will push off to the east
overnight and behind it a strong front will move into the area
from the southwest. It will first make it to Kodiak Island
Saturday morning bringing a rain and snow mix that will quickly
transition over to all rain. The front will then make it to the
Kenai Peninsula by Saturday afternoon initially bringing snow.

The majority of the snow will be for the eastern Kenai Peninsula
and will then spread to other locations around Prince William
Sound. The front will also bring strong winds with it, especially
for channeled areas of the eastern Kenai Peninsula like Portage
Valley and Turnagain Pass. These areas will see blowing snow
conditions late Saturday with the combination of heavy snow and
increasing winds. The challenge comes in determining how much warm
air will move in, how fast it will move in, and how quickly that
will mix in rain with the snow.

In this type of pattern temperatures will likely rise throughout
Saturday night with the coldest temperatures in the evening. It is
also likely that lower areas like Portage Valley will see rain
mixing in earlier, while snow continues at higher elevations such
as Turnagain Pass along with wind-sheltered valleys. However, even
when areas around Portage Valley transition to rain, the rain
falling on snow covered roads can still make for difficult driving
conditions. The winds will then taper down on Sunday, but the
precipitation will continue.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
An impressive Bering Sea front is currently bringing strong gusts
across both the eastern Aleutians and the Alaska Peninsula. Low
level southwesterly flow at low to mid levels is acting as a
trapping layer and contributing to particularly strong gusts.
Strong winds are next expected to develop along the Kuskokwim
Delta coast and western portions of Bristol Bay as the front
pushes eastward overnight and tomorrow. While some blowing snow
is possible along the Kuskokwim Delta, enough warm air advection
is associated with the front to generally keep visibilities above
blizzard criteria. However, at higher elevations, enough cold air
is in place for several new inches of new snow especially along
the Ahklun Mountains.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
As the potent east Bering front continues to push eastward, a
more mellow pattern will develop across the Bering over the next
few days. Enough instability will be in place to support scattered
showers across much the region, as broad low pressure dominates.
Meanwhile, a fairly weak front will skirt across the Central
Aleutians this evening and support more widespread showers for
the Aleutians.

&&

.LONG TERM FORECAST (Monday evening through Friday)...
Clear and cold conditions will dominate the extended period. On
Monday evening, the previous front will be all but dissipated over
the northern Gulf of Alaska. The responsible low pressure system
will still be spinning overhead with mostly cloudy conditions and
snow showers, mainly along the north Gulf coast. On Tuesday, the
system pulls away to the east as another weakening upper system
slides into the southern Gulf. The pattern will change, brought
about by a rapidly deepening Kamchatka low that will amplify the
upper pattern. The system will bring another frontal boundary with
strong winds across the Bering Sea. On the larger scale, the
system will build a large ridge over the eastern Bering and
western mainland. The result for Southcentral Alaska will be a
return to outflow conditions for much of the area. Expect clear
skies and gusty winds along the coast for favored gap locations,
with light winds elsewhere, as well as frigid arctic air.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Warning 185.
         Winter Weather Advisory 125.
MARINE...Heavy Freezing Spray Warning...140.
 		 Storm Warning 119 130 131 155 165 170 172 180.
		 Gale Warning 120 125 132 136 137 138 139 140 141 150
					  160 171 173 174 175 176 177 179 181 185.
&&

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