Gale Warning 870, NWS Anchorage, AK

781 
FZAK52 PAFC 311240
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
340 AM AKST SAT DEC 31 2016

COASTAL WATERS FORECAST FOR SOUTHWEST ALASKA+BRISTOL BAY+THE
ALASKA PENINSULA WATERS AND THE ALEUTIAN ISLANDS UP TO 100 NM OUT.

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.

PKZ199-010200-
340 AM AKST SAT DEC 31 2016
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A 970
MB NORTH KAMCHATKA LOW EXTENDS A FRONT INTO THE EASTERN ALEUTIANS
BY MON MORNING. A 992 MB NORTH PACIFIC LOW MOVES TO 325 NM WEST OF
ST PAUL ISLAND AT 1000 MB BY MON MORNING. A 1011 MB NORTH PACIFIC
LOW RIDES ALONG THE EASTERN ALEUTIAN FRONT TO 100 NM WEST OF
MEKORYUK BY MON MORNING.

$$

PKZ150-010200-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
340 AM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S WIND INCREASING TO 25 KT. SEAS 9 FT.
.TONIGHT...S WIND 30 KT. SEAS 11 FT.
.SUN...S WIND 30 KT. SEAS 14 FT.
.SUN NIGHT...S WIND 25 KT. SEAS 13 FT.
.MON...S WIND 25 KT. SEAS 12 FT.
.TUE...S WIND 20 KT. SEAS 11 FT.
.WED...S WIND 15 KT. SEAS 9 FT.

$$

PKZ155-010200-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE WIND INCREASING TO 35 KT. SEAS 15 FT.
.TONIGHT...S WIND 35 KT. SEAS 20 FT EXCEPT 15 FT FROM THE SHUMAGIN
ISLANDS E.
.SUN...S WIND 30 KT. SEAS 20 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS 17 FT.
.MON...SE WIND 30 KT. SEAS 15 FT.
.TUE...SE WIND 25 KT. SEAS 13 FT.
.WED...SE WIND 20 KT. SEAS 10 FT.

$$

PKZ160-010200-
BRISTOL BAY-
340 AM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SE WIND INCREASING TO 30 KT. SEAS IN ICE FREE WATERS 7
FT.
.TONIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT.
.SUN...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.TUE...SE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ165-010200-
PORT HEIDEN TO CAPE SARICHEF-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...SE WIND 40 KT. GUSTS TO 55 KT OUT OF BAYS AND PASSES.
SEAS 13 FT.
.TONIGHT...S WIND 40 KT. SEAS 13 FT.
.SUN...S WIND 35 KT. SEAS 10 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS 10 FT.
.MON...SE WIND 30 KT. SEAS 9 FT.
.TUE THROUGH WED...E WIND 20 KT. SEAS 6 FT.

$$

PKZ170-010200-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT. GUSTS TO 65 KT OUT OF BAYS AND PASSES. SEAS
19 FT.
.TONIGHT...S WIND 40 KT EXCEPT BECOMING NW 15 KT W OF UNALASKA
AFTER MIDNIGHT . SEAS 18 FT SUBSIDING TO 12 FT AFTER MIDNIGHT.
RAIN WITH SNOW.
.SUN...NW WIND 15 KT EXCEPT S 35 KT FROM UNALASKA E. SEAS 10 FT.
RAIN.
.SUN NIGHT...SW WIND 30 KT. SEAS 10 FT.
.MON...NW WIND 25 KT. SEAS 8 FT.
.TUE...NE WIND 20 KT. SEAS 9 FT.
.WED...E WIND 25 KT. SEAS 7 FT.

$$

PKZ171-010200-
UNALASKA BAY-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 40 KT. SEAS 6 FT.
.TONIGHT...S WIND 35 KT. SEAS 5 FT. RAIN.
.SUN...S WIND 20 KT. SEAS 3 FT. RAIN.
.SUN NIGHT...S WIND 20 KT. SEAS 2 FT.
.MON THROUGH TUE...N WIND 15 KT. SEAS 4 FT.
.WED...E WIND 15 KT. SEAS 2 FT.

$$

PKZ172-010200-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...S WIND 45 KT. SEAS 25 FT.
.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN.
.SUN...S WIND 35 KT. SEAS 21 FT. RAIN.
.SUN NIGHT...S WIND 30 KT. SEAS 18 FT.
.MON...N WIND 30 KT. SEAS 15 FT.
.TUE...NE WIND 25 KT. SEAS 11 FT.
.WED...E WIND 25 KT. SEAS 11 FT.

$$

PKZ173-010200-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT. GUSTS TO 65 KT. SEAS 28 FT. RAIN.
.TONIGHT...W WIND 20 KT. SEAS 19 FT. RAIN.
.SUN...NW WIND 15 KT BECOMING NE IN THE AFTERNOON. SEAS 12 FT.
.SUN NIGHT...SW WIND 20 KT. SEAS 10 FT.
.MON...W WIND 15 KT. SEAS 8 FT.
.TUE...NE WIND 20 KT. SEAS 8 FT.
.WED...E WIND 25 KT. SEAS 8 FT.

$$

PKZ174-010200-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT. GUSTS TO 65 KT. SEAS 31 FT. RAIN.
.TONIGHT...W WIND 30 KT BECOMING NW 15 KT AFTER MIDNIGHT. SEAS 24
FT SUBSIDING TO 17 FT AFTER MIDNIGHT.
.SUN...NW WIND 15 KT. SEAS 15 FT.
.SUN NIGHT...W WIND 15 KT. SEAS 13 FT.
.MON...NW WIND 20 KT. SEAS 13 FT.
.TUE...NE WIND 20 KT. SEAS 11 FT.
.WED...E WIND 25 KT. SEAS 11 FT.

$$

PKZ175-010200-
SEGUAM ISLAND TO ADAK BERING SIDE-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT BECOMING SW 35 KT IN THE AFTERNOON. SEAS
19 FT. RAIN.
.TONIGHT...SW WIND 30 KT. SEAS 14 FT.
.SUN...S WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
11 FT.
.SUN NIGHT...SW WIND 35 KT. SEAS 11 FT.
.MON...SW WIND 20 KT. SEAS 10 FT.
.TUE...SE WIND 25 KT. SEAS 7 FT.
.WED...SE WIND 30 KT. SEAS 9 FT.

$$

PKZ176-010200-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT BECOMING W 30 KT IN THE AFTERNOON. SEAS 28
FT. RAIN.
.TONIGHT...W WIND 25 KT. SEAS 19 FT.
.SUN...S WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
15 FT.
.SUN NIGHT...SW WIND 30 KT. SEAS 16 FT.
.MON...W WIND 15 KT. SEAS 14 FT.
.TUE THROUGH WED...E WIND 25 KT. SEAS 11 FT.

$$

PKZ177-010200-
ADAK TO KISKA-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW WIND 40 KT. SEAS 20 FT. SNOW AND RAIN.
.TONIGHT...S WIND 35 KT. SEAS 19 FT.
.SUN...S WIND 40 KT. SEAS 19 FT.
.SUN NIGHT...W WIND 40 KT. SEAS 19 FT.
.MON...SW WIND 25 KT. SEAS 11 FT.
.TUE THROUGH WED...SE WIND 35 KT. SEAS 11 FT.

$$

PKZ178-010200-
KISKA TO ATTU-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...W WIND 45 KT BECOMING SW 35 KT IN THE AFTERNOON. SEAS
21 FT.
.TONIGHT...SW WIND 35 KT. SEAS 17 FT. SNOW.
.SUN...SW WIND 35 KT. SEAS 16 FT.
.SUN NIGHT...W WIND 30 KT. SEAS 14 FT.
.MON...SW WIND 30 KT. SEAS 11 FT.
.TUE THROUGH WED...SE WIND 45 KT. SEAS 19 FT.

$$

PKZ179-010200-
PRIBILOF ISLANDS NEAR SHORE WATERS-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT. GUSTS TO 65 KT. SEAS 29 FT. RAIN.
.TONIGHT...S WIND 40 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS 27
FT SUBSIDING TO 19 FT AFTER MIDNIGHT. RAIN.
.SUN...VARIABLE WIND 10 KT. SEAS 14 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 11 FT.
.MON...SW WIND 20 KT. SEAS 10 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 6 FT.
.WED...E WIND 25 KT. SEAS 7 FT.

$$

PKZ180-010200-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
340 AM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...SE WIND 45 KT. SEAS 18 FT.
.TONIGHT...S WIND 45 KT. SEAS 18 FT.
.SUN...S WIND 40 KT. SEAS 15 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS 11 FT.
.MON...S WIND 30 KT. SEAS 11 FT.
.TUE...NE WIND 15 KT. SEAS 6 FT.
.WED...E WIND 20 KT. SEAS 5 FT.

$$

PKZ181-010200-
NORTH AND WEST OF NUNIVAK ISLAND-
340 AM AKST SAT DEC 31 2016

...STORM WARNING THROUGH TONIGHT...

.TODAY...S WIND 50 KT. SEAS IN ICE FREE WATERS 21 FT. RAIN.
.TONIGHT...S WIND 50 KT DIMINISHING TO 40 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 22 FT. RAIN AND SNOW.
.SUN...SW WIND 30 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
IN ICE FREE WATERS 12 FT. RAIN.
.SUN NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT.
.MON...S WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT.
.TUE...S WIND 15 KT. SEAS IN ICE FREE WATERS 8 FT.
.WED...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ185-010200-
SAINT MATTHEW ISLAND WATERS-
340 AM AKST SAT DEC 31 2016

...STORM WARNING TODAY...

.TODAY...S WIND 50 KT. SEAS 27 FT. RAIN.
.TONIGHT...E OF SAINT MATTHEW ISLAND...S WIND 45 KT DIMINISHING TO
30 KT AFTER MIDNIGHT. W OF SAINT MATTHEW ISLAND... S WIND 45 KT.
SEAS 26 FT.
.SUN...SW WIND 25 KT E OF SAINT MATTHEW ISLAND...S 40 KT W OF
SAINT MATTHEW ISLAND. SEAS 23 FT.
.SUN NIGHT...S WIND 35 KT. SEAS 19 FT.
.MON THROUGH TUE...S WIND 30 KT. SEAS 13 FT.
.WED...SE WIND 30 KT. SEAS 12 FT.

$$

335 
FZAK52 PAFC 312355
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
255 PM AKST SAT DEC 31 2016

COASTAL WATERS FORECAST FOR SOUTHWEST ALASKA+BRISTOL BAY+THE
ALASKA PENINSULA WATERS AND THE ALEUTIAN ISLANDS UP TO 100 NM OUT.

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.

PKZ199-011300-
255 PM AKST SAT DEC 31 2016
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A 956 MB 
LOW 450 NM NORTHWEST OF SHEMYA MOVES INLAND TONIGHT OVER EASTERN
RUSSIA AND WEAKENS. THE ASSOCIATED FRONT IN THE CENTRAL BERING
SLOWLY DRIFTS EAST AND WEAKENS THROUGH MON AFTERNOON. A 998 MB
NORTH PACIFIC LOW MOVES TO 140 NM NORTHEAST OF SHEMYA AT 991 MB
BY SUN AFTERNOON...THEN MOVES INLAND OVER EASTERN RUSSIA MON
MORNING.

$$

PKZ150-011300-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
255 PM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 30 KT. SEAS 11 FT.
.SUN...S WIND 30 KT. SEAS 14 FT.
.SUN NIGHT...S WIND 25 KT. SEAS 13 FT.
.MON AND MON NIGHT...S WIND 20 KT. SEAS 11 FT.
.TUE THROUGH WED...S WIND 15 KT. SEAS 10 FT.
.THU...NE WIND 15 KT. SEAS 8 FT.

$$

PKZ155-011300-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
255 PM AKST SAT DEC 31 2016

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT EXCEPT S 30 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 20 FT EXCEPT 15 FT FROM THE SHUMAGIN ISLANDS E.
.SUN...S WIND 30 KT. SEAS 19 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS 17 FT.
.MON AND MON NIGHT...SE WIND 25 KT. SEAS 14 FT.
.TUE THROUGH THU...E WIND 20 KT. SEAS 11 FT.

$$

PKZ160-011300-
BRISTOL BAY-
255 PM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...SE WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT.
.MON NIGHT...SE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.TUE...S WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED THROUGH THU...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ165-011300-
PORT HEIDEN TO CAPE SARICHEF-
255 PM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S WIND 40 KT. SEAS 13 FT.
.SUN...S WIND 35 KT. SEAS 11 FT.
.SUN NIGHT...SE WIND 30 KT. SEAS 9 FT.
.MON...S WIND 30 KT. SEAS 9 FT.
.MON NIGHT...SE WIND 20 KT. SEAS 6 FT.
.TUE...E WIND 25 KT. SEAS 6 FT.
.WED THROUGH THU...E WIND 20 KT. SEAS 6 FT.

$$

PKZ170-011300-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
255 PM AKST SAT DEC 31 2016

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 45 KT BECOMING SW 35 KT AFTER MIDNIGHT. SEAS 18 FT
SUBSIDING TO 13 FT AFTER MIDNIGHT. RAIN.
.SUN...W WIND 30 KT BECOMING NE IN THE AFTERNOON. SEAS 10 FT. RAIN SHOWERS.
.SUN NIGHT...VARIABLE WIND 10 KT EXCEPT S 30 KT FROM UNALASKA E. SEAS
8 FT. RAIN.
.MON...W WIND 20 KT. SEAS 8 FT.
.MON NIGHT...N WIND 15 KT. SEAS 6 FT.
.TUE...NE WIND 20 KT. SEAS 6 FT.
.WED THROUGH THU...SE WIND 25 KT. SEAS 7 FT.

$$

PKZ171-011300-
UNALASKA BAY-
255 PM AKST SAT DEC 31 2016

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
5 FT. RAIN.
.SUN...S WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS 4 FT
SUBSIDING TO 2 FT IN THE AFTERNOON. RAIN SHOWERS.
.SUN NIGHT...S WIND 15 KT. SEAS 2 FT. RAIN SHOWERS.
.MON AND MON NIGHT...N WIND 10 KT. SEAS 3 FT.
.TUE...N WIND 10 KT. SEAS 3 FT.
.WED...E WIND 15 KT. SEAS 2 FT.
.THU...SE WIND 20 KT. SEAS 2 FT.

$$

PKZ172-011300-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
255 PM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN.
.SUN...SE WIND 35 KT. SEAS 20 FT. RAIN SHOWERS.
.SUN NIGHT...S WIND 30 KT. SEAS 17 FT. RAIN.
.MON...W WIND 25 KT. SEAS 16 FT.
.MON NIGHT...N WIND 15 KT. SEAS 12 FT.
.TUE...NE WIND 20 KT. SEAS 10 FT.
.WED THROUGH THU...SE WIND 25 KT. SEAS 11 FT.

$$

PKZ173-011300-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
255 PM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 19 FT SUBSIDING TO 14 FT AFTER MIDNIGHT.
RAIN SHOWERS.
.SUN...VARIABLE WIND 10 KT BECOMING E 15 KT IN THE AFTERNOON. SEAS
12 FT.
.SUN NIGHT...S WIND 20 KT. SEAS 11 FT.
.MON...W WIND 15 KT. SEAS 9 FT.
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.TUE...NE WIND 20 KT. SEAS 6 FT.
.WED...E WIND 25 KT. SEAS 8 FT.
.THU...SE WIND 30 KT. SEAS 8 FT.

$$

PKZ174-011300-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
255 PM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...W WIND 30 KT BECOMING NW 15 KT AFTER MIDNIGHT. SEAS 24 FT
SUBSIDING TO 17 FT AFTER MIDNIGHT. RAIN SHOWERS.
.SUN...NW WIND 20 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
15 FT.
.SUN NIGHT...SW WIND 15 KT. SEAS 13 FT.
.MON AND MON NIGHT...NW WIND 15 KT. SEAS 13 FT.
.TUE...NE WIND 20 KT. SEAS 10 FT.
.WED...E WIND 25 KT. SEAS 11 FT.
.THU...SE WIND 30 KT. SEAS 11 FT.

$$

PKZ175-011300-
SEGUAM ISLAND TO ADAK BERING SIDE-
255 PM AKST SAT DEC 31 2016

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

.TONIGHT...SW WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS
14 FT.
.SUN...S WIND 25 KT INCREASING TO 40 KT IN THE AFTERNOON. SEAS
11 FT.
.SUN NIGHT...S WIND 35 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS
12 FT.
.MON...SW WIND 20 KT. SEAS 9 FT.
.MON NIGHT...SW WIND 15 KT. SEAS 7 FT.
.TUE...SE WIND 25 KT. SEAS 6 FT.
.WED THROUGH THU...SE WIND 30 KT. SEAS 9 FT.

$$

PKZ176-011300-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
255 PM AKST SAT DEC 31 2016

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...W WIND 25 KT BECOMING SW 15 KT AFTER MIDNIGHT. SEAS
19 FT.
.SUN...S WIND 30 KT. SEAS 15 FT.
.SUN NIGHT...SW WIND 30 KT BECOMING W 20 KT AFTER MIDNIGHT. SEAS
15 FT.
.MON...W WIND 15 KT. SEAS 13 FT.
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 10 FT.
.TUE THROUGH WED...E WIND 25 KT. SEAS 10 FT.
.THU...SE WIND 30 KT. SEAS 12 FT.

$$

PKZ177-011300-
ADAK TO KISKA-
255 PM AKST SAT DEC 31 2016

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

.TONIGHT...SW WIND 30 KT. SEAS 19 FT.
.SUN...S WIND 40 KT. SEAS 21 FT.
.SUN NIGHT...W WIND 40 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS
18 FT.
.MON AND MON NIGHT...SW WIND 20 KT. SEAS 11 FT.
.TUE THROUGH THU...SE WIND 35 KT. SEAS 12 FT.

$$

PKZ178-011300-
KISKA TO ATTU-
255 PM AKST SAT DEC 31 2016

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...SW WIND 35 KT. SEAS 17 FT. SNOW SHOWERS.
.SUN...SW WIND 35 KT. SEAS 17 FT.
.SUN NIGHT...W WIND 25 KT. SEAS 14 FT.
.MON...SW WIND 25 KT. SEAS 12 FT.
.MON NIGHT...S WIND 30 KT. SEAS 10 FT.
.TUE THROUGH WED...SE WIND 45 KT. SEAS 19 FT.
.THU...SE WIND 30 KT. SEAS 14 FT.

$$

PKZ179-011300-
PRIBILOF ISLANDS NEAR SHORE WATERS-
255 PM AKST SAT DEC 31 2016

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 45 KT BECOMING SW 20 KT AFTER MIDNIGHT. GUSTS TO
60 KT DURING THE EARLY EVENING. SEAS 26 FT SUBSIDING TO 18 FT
AFTER MIDNIGHT. RAIN.
.SUN...SW WIND 15 KT IN THE MORNING BECOMING VARIABLE 10 KT. SEAS
14 FT.
.SUN NIGHT...S WIND 20 KT. SEAS 11 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 9 FT.
.TUE...VARIABLE WIND 10 KT. SEAS 7 FT.
.WED THROUGH THU...SE WIND 25 KT. SEAS 7 FT.

$$

PKZ180-011300-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
255 PM AKST SAT DEC 31 2016

...STORM WARNING TONIGHT...

.TONIGHT...S WIND 50 KT DIMINISHING TO 40 KT AFTER MIDNIGHT. SEAS
19 FT. RAIN.
.SUN...S WIND 40 KT. SEAS 15 FT. RAIN AND SNOW.
.SUN NIGHT...SE WIND 30 KT. SEAS 11 FT.
.MON...S WIND 30 KT. SEAS 11 FT.
.MON NIGHT...S WIND 25 KT. SEAS 8 FT.
.TUE...NW WIND 20 KT. SEAS 6 FT.
.WED THROUGH THU...E WIND 20 KT. SEAS 5 FT.

$$

PKZ181-011300-
NORTH AND WEST OF NUNIVAK ISLAND-
255 PM AKST SAT DEC 31 2016

...STORM WARNING TONIGHT...

.TONIGHT...S WIND 50 KT DIMINISHING TO 40 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 22 FT. RAIN AND SNOW.
.SUN...S WIND 30 KT BECOMING SW 15 KT IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 12 FT. RAIN.
.SUN NIGHT...E WIND 15 KT. SEAS IN ICE FREE WATERS 8 FT.
.MON...S WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT.
.MON NIGHT...SW WIND 20 KT. SEAS IN ICE FREE WATERS 8 FT.
.TUE...S WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.WED...E WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.THU...SE WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

PKZ185-011300-
SAINT MATTHEW ISLAND WATERS-
255 PM AKST SAT DEC 31 2016

...STORM WARNING TONIGHT...

.TONIGHT...E OF SAINT MATTHEW ISLAND...S WIND 50 KT DIMINISHING TO
25 KT AFTER MIDNIGHT. W OF SAINT MATTHEW ISLAND...S WIND 50 KT.
SEAS 26 FT. RAIN.
.SUN...SW WIND 20 KT E OF SAINT MATTHEW ISLAND...S 40 KT W OF SAINT
MATTHEW ISLAND. SEAS 23 FT.
.SUN NIGHT...S WIND 20 KT E OF SAINT MATTHEW ISLAND...S 35 KT W OF
SAINT MATTHEW ISLAND. SEAS 18 FT.
.MON...S WIND 35 KT. SEAS 16 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 14 FT.
.TUE...S WIND 30 KT. SEAS 12 FT.
.WED THROUGH THU...SE WIND 30 KT. SEAS 12 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
519 AM AKST Fri Dec 30 2016

.ANALYSIS AND UPPER LEVELS...

Eastward moving upper ridges are over the Bering and Alcan this
morning, with upper troughs along the west coast of mainland AK
and over the Kamchatka peninsula. At the surface, a trough of low
pressure is over the Kenai peninsula and northwestern Gulf of AK.
Low pressure centers are over the extreme northwest Bering and
south of the western Aleutians. A decaying weather front with
significant snowfall is moving rapidly across southcentral AK.
Frontal systems are also associated with the northwestern Bering
low, as well as the low aimed at the western Aleutians. All of these
systems are bringing gale and storm force winds to the Aleutians
and Bering, as well as the northwestern Gulf of AK.

&&

.MODEL DISCUSSION...

Models remain in good synoptic agreement, with timing differences
due to the way mesoscale events are being handled. The forecasts
utilize the GFS, with some NAM for details in the east.

&&

.AVIATION...
PANC...IFR conditions will persist early this morning. As the
front continues east conditions will become marginal by mid
morning. Lingering clouds will finally scatter out late in the
afternoon and remain VFR with light winds into Sat morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

Widespread snowfall continues this morning across much of
Southcentral, but will begin to slowly taper from west to east as
a cold front continues to push to the southeast. An upper level
jet of 140 kts is supporting a strong potential vorticity anomaly
and impressive downward vertical motion behind this system. Gusty
winds are expected to form as this potential vorticity anomaly
pushes southward across the North Gulf coast, with the strongest
gusts expected across Prince William sound. A combination of
cooler behind this front and clearing skies will help
temperatures to drop tonight. Surface high pressure will build in
through Saturday and support clear skies and gusty offshore winds.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...

A cold upper level trough swinging into Southwest Alaska this
morning will bring increasing west to southwesterly winds and
falling temperatures. Isolated to scattered snow showers will
track onshore through the morning then taper off this afternoon.
Snow showers in the mountains will be more numerous and
persistent especially along west facing slopes. An upper level
ridge will build in over Bristol Bay and the Southwest Alaska
coast tonight and then shift inland Saturday. Ridging will
continue to amplify over mainland Alaska through the weekend,
stalling incoming Bering frontal systems along the Alaska Peninsula
and Kuskokwim Delta coast.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

A rapidly strengthening low to the southwest of the western
Aleutians will track north along 170E deepening to around 950 mb
off of the Kamchatka Peninsula Saturday. The associated front will
merge with another frontal wave well to the south of the central
Aleutians combining into a rather strong front over the central
Aleutians tonight and then surging north across the Bering
Saturday. This front will bring a large area of storm force
southerlies to the central Aleutians and Bering as well as high
winds to the Pribilof Islands. The front will stall and weaken
over the eastern Bering Saturday Night and Sunday as it runs into
the large upper level ridge amplifying over mainland Alaska. The
next low will cross the Aleutians near Kiska on Sunday and
continue north through Bering along 180.

&&

.LONG TERM FORECAST (Days 3 through 7/Friday Night through Wednesday)...

Forecast guidance managed to take a shift from previous days.
Over the weekend a ridge of high pressure will build in across
most of south central Alaska. Guidance settled on a slower
progression of the ridge and the weekend across the area is
expected to be met with bouts of clouds and sunshine. A weak
wiggle in the flow is showing some signs of bringing light snow to
the Western Alaska Range Sunday evening and into Monday, but the
current trend keeps backing off on those chances.

The blocking ridge across southcentral will lead to a continued
storm trajectory across the Western Aleutian chain. The first in a
series of storms will slide north along the date line and occlude a
front that will stall out across the Central Aleutians. The ridge
of high pressure will slowly build to the west and eventually span
much of the state leading to a quiet mid week across most of the
state.

It looks like there will be a break between systems early next
week which will allow winds and seas to abate, but the pattern
will remain favorable across the Western Bering for strong systems
moving up from the Pacific as we head through next week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisories/Warning 101 111 141 145
High Wind Watch zone 195.

MARINE...Storm Warning...170 172 173 174 175 176 179 180 181 185 Gale
warning...119 120 121 125 130 131 155 165 171 177 178.

&&

SYNOPSIS AND MODEL DISCUSSION...DS
SOUTHCENTRAL ALASKA...ELN
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JR
LONG TERM...SS