Gale Warning 295, NWS Anchorage, AK

802 
FZAK52 PAFC 291134
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
334 AM AKDT SAT APR 29 2017

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.

PKZ199-300045-
334 AM AKDT SAT APR 29 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 985 MB LOW 170 NM WEST OF SHEMYA COMBINES WITH A LOW 170 NM NORTH 
OF ATKA AT 989 MB BEFORE DEVELOPING INTO ONE LOW 240 NM NORTHWEST OF 
ADAK AT 987 MB SAT MORNING. THIS SYSTEM MOVES 90 NM NORTHEAST OF COLD
BAY AT 996 MB MON MORNING BEFORE ELONGATING INTO A BROAD AREA OF LOW
PRESSURE OVER THE EASTERN ALEUTIANS BY LATE MONDAY EVENING. AN 
ASSOCIATED FRONT MOVES THROUGH THE EASTERN/CENTRAL ALEUTIANS TODAY 
BEFORE MOVING INLAND BY SUNDAY AFTERNOON.

$$

PKZ150-300045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SE WIND 15 KT BECOMING S 25 KT IN THE AFTERNOON. SEAS
5 FT.
.TONIGHT...SE WIND 30 KT. SEAS 9 FT. RAIN.
.SUN...S WIND 20 KT. SEAS 10 FT.
.SUN NIGHT...S WIND 15 KT. SEAS 9 FT.
.MON...SE WIND 15 KT. SEAS 10 FT.
.TUE...NE WIND 20 KT. SEAS 10 FT.
.WED...NW WIND 20 KT. SEAS 10 FT.

$$

PKZ155-300045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
334 AM AKDT SAT APR 29 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. FROM THE SHUMAGIN ISLANDS E, SE WIND 20 KT
INCREASING TO 30 KT IN THE AFTERNOON. SEAS 11 FT. WIDESPREAD RAIN
SHOWERS.
.TONIGHT...S WIND 30 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS
11 FT.
.SUN...S WIND 20 KT. SEAS 11 FT.
.SUN NIGHT...S WIND 15 KT. SEAS 11 FT.
.MON...SE WIND 15 KT. SEAS 11 FT.
.TUE...N WIND 20 KT. SEAS 7 FT.
.WED...NW WIND 20 KT. SEAS 7 FT.

$$

PKZ160-300045-
BRISTOL BAY-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY...

.TODAY...SE WIND 20 KT. SEAS 3 FT.
.TONIGHT...E WIND 30 KT. SEAS 6 FT.
.SUN...E WIND 30 KT BECOMING SE 20 KT IN THE AFTERNOON. SEAS 6 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 3 FT.
.MON...E WIND 15 KT. SEAS 3 FT.
.TUE...NE WIND 15 KT. SEAS 2 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.

$$

PKZ165-300045-
PORT HEIDEN TO CAPE SARICHEF-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SE WIND 30 KT. SEAS 7 FT.
.TONIGHT...S WIND 30 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. FROM
PORT MOLLER E, E WIND 30 KT. SEAS 7 FT.
.SUN...S WIND 15 KT. SEAS 6 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 5 FT.
.MON...E WIND 15 KT. SEAS 5 FT.
.TUE...N WIND 15 KT. SEAS 4 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.

$$

PKZ170-300045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
334 AM AKDT SAT APR 29 2017

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. SEAS 9 FT. RAIN.
.TONIGHT...SW WIND 20 KT. SEAS 8 FT.
.SUN...S WIND 15 KT. SEAS 7 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.MON THROUGH TUE...NW WIND 20 KT. SEAS 6 FT.
.WED...NW WIND 15 KT. SEAS 5 FT.

$$

PKZ171-300045-
UNALASKA BAY-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SE WIND 30 KT BECOMING SW 20 KT IN THE AFTERNOON. SEAS 5
FT SUBSIDING TO 3 FT IN THE AFTERNOON. RAIN.
.TONIGHT...SW WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 2 FT.
.SUN...S WIND 10 KT IN THE MORNING BECOMING VARIABLE LESS THAN
10 KT. SEAS 2 FT. RAIN SHOWERS.
.SUN NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 3 FT.
.MON...N WIND 10 KT. SEAS 3 FT.
.TUE...NW WIND 15 KT. SEAS 4 FT.
.WED...NW WIND 10 KT. SEAS 3 FT.

$$

PKZ172-300045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
334 AM AKDT SAT APR 29 2017

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT. SEAS 13 FT. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 12 FT. RAIN SHOWERS.
.SUN...SW WIND 20 KT. SEAS 12 FT.
.SUN NIGHT...SW WIND 15 KT. SEAS 12 FT.
.MON...NW WIND 20 KT. SEAS 12 FT.
.TUE...NW WIND 20 KT. SEAS 7 FT.
.WED...W WIND 20 KT. SEAS 7 FT.

$$

PKZ173-300045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W WIND 30 KT. SEAS 9 FT.
.TONIGHT...SW WIND 20 KT. SEAS 9 FT.
.SUN...W WIND 15 KT. SEAS 7 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.MON THROUGH TUE...NW WIND 20 KT. SEAS 7 FT.
.WED...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ174-300045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...W WIND 30 KT. SEAS 14 FT.
.TONIGHT...SW WIND 25 KT. SEAS 13 FT. RAIN SHOWERS.
.SUN...W WIND 20 KT. SEAS 15 FT.
.SUN NIGHT...W WIND 20 KT. SEAS 15 FT.
.MON THROUGH TUE...NW WIND 20 KT. SEAS 10 FT.
.WED...S WIND 20 KT. SEAS 9 FT.

$$

PKZ175-300045-
SEGUAM ISLAND TO ADAK BERING SIDE-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...W WIND 25 KT. SEAS 7 FT.
.TONIGHT...SW WIND 20 KT. SEAS 6 FT.
.SUN...W WIND 20 KT. SEAS 9 FT.
.SUN NIGHT THROUGH MON...NW WIND 25 KT. SEAS 8 FT.
.TUE...NW WIND 20 KT. SEAS 8 FT.
.WED...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ176-300045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...W WIND 25 KT. SEAS 14 FT. RAIN SHOWERS.
.TONIGHT...SW WIND 30 KT. SEAS 16 FT. RAIN SHOWERS.
.SUN...W WIND 25 KT. SEAS 16 FT.
.SUN NIGHT...NW WIND 30 KT. SEAS 15 FT.
.MON...NW WIND 25 KT. SEAS 11 FT.
.TUE...NW WIND 25 KT. SEAS 7 FT.
.WED...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ177-300045-
ADAK TO KISKA-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT BERING SIDE...17 FT PACIFIC
SIDE. RAIN SHOWERS.
.TONIGHT...W WIND 30 KT. SEAS 11 FT BERING SIDE...18 FT PACIFIC 
SIDE.
.SUN...W WIND 30 KT. SEAS 16 FT.
.SUN NIGHT...NW WIND 30 KT. SEAS 12 FT.
.MON...NW WIND 25 KT. SEAS 10 FT.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.WED...SE WIND 20 KT. SEAS 7 FT.

$$

PKZ178-300045-
KISKA TO ATTU-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...SW WIND 25 KT BECOMING NW IN THE AFTERNOON. SEAS 17 FT.
.TONIGHT...NW WIND 25 KT. SEAS 17 FT.
.SUN...NW WIND 30 KT. SEAS 13 FT.
.SUN NIGHT...NW WIND 25 KT. SEAS 10 FT.
.MON...NW WIND 25 KT. SEAS 9 FT.
.TUE...SE WIND 25 KT. SEAS 8 FT.
.WED...E WIND 20 KT. SEAS 8 FT.

$$

PKZ179-300045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 30 KT. SEAS 13 FT. WIDESPREAD RAIN SHOWERS.
.TONIGHT...SE WIND 30 KT BECOMING S 20 KT AFTER MIDNIGHT.
SEAS 12 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 9 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 8 FT.
.MON THROUGH TUE...N WIND 15 KT. SEAS 5 FT.
.WED...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ180-300045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 25 KT. SEAS 6 FT. PATCHY FOG.
.TONIGHT...E WIND 30 KT. SEAS 9 FT. PATCHY FOG. RAIN SHOWERS.
.SUN...E WIND 30 KT BECOMING SE 20 KT IN THE AFTERNOON. SEAS 8 FT.
.SUN NIGHT...E WIND 15 KT. SEAS 6 FT.
.MON...E WIND 15 KT. SEAS 4 FT.
.TUE...N WIND 15 KT. SEAS 3 FT.
.WED...NW WIND 15 KT. SEAS 3 FT.

$$

PKZ181-300045-
NORTH AND WEST OF NUNIVAK ISLAND-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. PATCHY FOG.
.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT. PATCHY FOG.
.SUN...E WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 7 FT.
.SUN NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.MON...NE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.TUE...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED...N WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ185-300045-
SAINT MATTHEW ISLAND WATERS-
334 AM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...E WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.TONIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.
.MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.TUE THROUGH WED...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

012 
FZAK52 PAFC 292327
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
327 PM AKDT SAT APR 29 2017

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.

PKZ199-301215-
327 PM AKDT SAT APR 29 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 985 MB LOW 150 NM SOUTHWEST OF SAINT PAUL ISLAND WILL BECOME A 
BROAD AREA OF LOW PRESSURE CENTERED 150 NM NORTHEAST OF ADAK SUN.
THE BROAD LOW PRESSURE WILL THEN MOVE TO 130 NM SOUTHEAST OF DUTCH
HARBOR MON AFTERNOON.

$$

PKZ150-301215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...SE WIND 30 KT. SEAS 10 FT. RAIN.
.SUN...S WIND 25 KT. SEAS 10 FT. RAIN.
.SUN NIGHT...S WIND 15 KT. SEAS 10 FT.
.MON AND MON NIGHT...SE WIND 15 KT. SEAS 9 FT.
.TUE...N WIND 25 KT. SEAS 10 FT.
.WED...NW WIND 20 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 8 FT.

$$

PKZ155-301215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...S WIND 30 KT. SEAS 12 FT. RAIN.
.SUN...SW WIND 20 KT. SEAS 11 FT.
.SUN NIGHT...S WIND 15 KT. SEAS 11 FT.
.MON...S WIND 15 KT. SEAS 11 FT.
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 9 FT.
.TUE...N WIND 20 KT. SEAS 8 FT.
.WED...NW WIND 20 KT. SEAS 7 FT.
.THU...SW WIND 15 KT. SEAS 6 FT.

$$

PKZ160-301215-
BRISTOL BAY-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...E WIND 20 KT IN THE EVENING INCREASING TO 30 KT. SEAS 6 
FT.
.SUN...E WIND 30 KT. SEAS 6 FT.
.SUN NIGHT...SE WIND 15 KT. SEAS 4 FT.
.MON AND MON NIGHT...E WIND 15 KT. SEAS 3 FT.
.TUE...N WIND 15 KT. SEAS 2 FT.
.WED...NW WIND 15 KT. SEAS 4 FT.
.THU...W WIND 15 KT. SEAS 3 FT.

$$

PKZ165-301215-
PORT HEIDEN TO CAPE SARICHEF-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S WIND 30 KT BECOMING SW 20 KT AFTER MIDNIGHT. FROM
PORT MOLLER E, E WIND 30 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. FROM PORT MOLLER E...S WIND 20 KT IN THE
MORNING BECOMING VARIABLE 10 KT. SEAS 6 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.MON AND MON NIGHT...VARIABLE WIND 10 KT. SEAS 5 FT.
.TUE...N WIND 15 KT. SEAS 3 FT.
.WED THROUGH THU...N WIND 15 KT. SEAS 4 FT.

$$

PKZ170-301215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 8 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 6 FT.
.MON...N WIND 15 KT. SEAS 5 FT.
.MON NIGHT...N WIND 20 KT. SEAS 4 FT.
.TUE...NW WIND 20 KT. SEAS 7 FT.
.WED...NW WIND 15 KT. SEAS 5 FT.
.THU...E WIND 15 KT. SEAS 5 FT.

$$

PKZ171-301215-
UNALASKA BAY-
327 PM AKDT SAT APR 29 2017

.TONIGHT...SW WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 2 FT.
.SUN...VARIABLE WIND LESS THAN 10 KT. SEAS 3 FT.
.SUN NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 3 FT. RAIN
SHOWERS.
.MON AND MON NIGHT...N WIND 10 KT. SEAS 3 FT.
.TUE...NW WIND 15 KT. SEAS 4 FT.
.WED...NW WIND 10 KT. SEAS 3 FT.
.THU...E WIND 10 KT. SEAS 2 FT.

$$

PKZ172-301215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...SW WIND 25 KT. SEAS 12 FT.
.SUN...SW WIND 20 KT. SEAS 11 FT.
.SUN NIGHT...SW WIND 15 KT. SEAS 12 FT.
.MON...W WIND 15 KT. SEAS 11 FT.
.MON NIGHT...N WIND 20 KT. SEAS 9 FT.
.TUE...NW WIND 20 KT. SEAS 7 FT.
.WED...W WIND 20 KT. SEAS 7 FT.
.THU...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ173-301215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 8 FT.
.SUN...W WIND 15 KT. SEAS 7 FT.
.SUN NIGHT...VARIABLE WIND 10 KT BECOMING NE 15 KT AFTER MIDNIGHT.
SEAS 7 FT.
.MON...N WIND 15 KT. SEAS 6 FT.
.MON NIGHT...NW WIND 25 KT. SEAS 8 FT.
.TUE...NW WIND 25 KT. SEAS 10 FT.
.WED THROUGH THU...E WIND 20 KT. SEAS 6 FT.

$$

PKZ174-301215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...SW WIND 25 KT. SEAS 13 FT. RAIN SHOWERS.
.SUN...W WIND 20 KT. SEAS 14 FT.
.SUN NIGHT...SW WIND 20 KT. SEAS 14 FT. RAIN SHOWERS.
.MON...N WIND 20 KT. SEAS 12 FT.
.MON NIGHT...NW WIND 25 KT. SEAS 8 FT.
.TUE...NW WIND 25 KT. SEAS 9 FT.
.WED...S WIND 20 KT. SEAS 9 FT.
.THU...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ175-301215-
SEGUAM ISLAND TO ADAK BERING SIDE-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY SUNDAY AND SUNDAY NIGHT...

.TONIGHT...W WIND 20 KT. SEAS 6 FT.
.SUN...W WIND 25 KT. SEAS 9 FT.
.SUN NIGHT...NW WIND 25 KT. SEAS 8 FT.
.MON AND MON NIGHT...NW WIND 25 KT. SEAS 9 FT.
.TUE...NW WIND 25 KT. SEAS 9 FT.
.WED...SE WIND 20 KT. SEAS 6 FT.
.THU...E WIND 25 KT. SEAS 6 FT.

$$

PKZ176-301215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...SW WIND 25 KT. SEAS 16 FT. RAIN SHOWERS.
.SUN...W WIND 30 KT. SEAS 16 FT.
.SUN NIGHT...W WIND 30 KT. SEAS 15 FT.
.MON AND MON NIGHT...NW WIND 25 KT. SEAS 10 FT.
.TUE...NW WIND 25 KT. SEAS 8 FT.
.WED THROUGH THU...E WIND 20 KT. SEAS 9 FT.

$$

PKZ177-301215-
ADAK TO KISKA-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...W WIND 25 KT. SEAS 11 FT BERING SIDE...18 FT PAC SIDE.
.SUN...W WIND 30 KT. SEAS 15 FT.
.SUN NIGHT...NW WIND 30 KT. SEAS 12 FT.
.MON AND MON NIGHT...NW WIND 25 KT. SEAS 10 FT.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.WED...SE WIND 20 KT. SEAS 7 FT.
.THU...NE WIND 20 KT. SEAS 7 FT.

$$

PKZ178-301215-
KISKA TO ATTU-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...NW WIND 25 KT. SEAS 17 FT.
.SUN...NW WIND 30 KT. SEAS 13 FT.
.SUN NIGHT...NW WIND 25 KT. SEAS 10 FT.
.MON...NW WIND 25 KT. SEAS 9 FT.
.MON NIGHT...NW WIND 20 KT. SEAS 8 FT.
.TUE...S WIND 25 KT. SEAS 8 FT.
.WED...E WIND 20 KT. SEAS 8 FT.
.THU...NE WIND 20 KT. SEAS 8 FT.

$$

PKZ179-301215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...SE WIND 30 KT BECOMING S 20 KT AFTER MIDNIGHT. SEAS
12 FT. RAIN.
.SUN...VARIABLE WIND 10 KT. SEAS 8 FT.
.SUN NIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.MON AND MON NIGHT...N WIND 15 KT. SEAS 6 FT.
.TUE...N WIND 20 KT. SEAS 5 FT.
.WED...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU...NE WIND 15 KT. SEAS 5 FT.

$$

PKZ180-301215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...E WIND 30 KT. SEAS 9 FT. PATCHY FOG.
.SUN...E WIND 30 KT. SEAS 9 FT. RAIN.
.SUN NIGHT...E WIND 20 KT. SEAS 7 FT.
.MON...E WIND 15 KT. SEAS 4 FT.
.MON NIGHT...NE WIND 10 KT. SEAS 3 FT.
.TUE THROUGH THU...NW WIND 15 KT. SEAS 3 FT.

$$

PKZ181-301215-
NORTH AND WEST OF NUNIVAK ISLAND-
327 PM AKDT SAT APR 29 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT. PATCHY FOG.
.SUN...E WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.SUN NIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.MON AND MON NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.TUE THROUGH WED...N WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.THU...N WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ185-301215-
SAINT MATTHEW ISLAND WATERS-
327 PM AKDT SAT APR 29 2017

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

.TONIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN...NE WIND 25 KT. SEAS IN ICE FREE WATERS 11 FT.
.SUN NIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.
.MON AND MON NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.TUE...N WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.WED THROUGH THU...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
400 AM AKDT Fri Apr 28 2017

.ANALYSIS AND UPPER LEVELS...
Another interesting day played out yesterday weatherwise across
Southcentral. The northward building of strong ridging across the
Gulf yesterday afternoon caused the light southeast or variable
winds earlier in the day to turn southwesterly in the afternoon.
Meanwhile, pressure gradients remained favorable for light
southeasterly flow to continue across the Kenai and Chugach
mountains at the same time. Thus, a convergence zone set up right
along the Kenai mountains by late in the afternoon. Coupled with
orographic uplift, strong shower activity quickly formed in the
afternoon along a line paralleling the Kenai Mountains.
Convergence was weaker initially further north for Anchorage and
the Matanuska Valley, but increased through the late afternoon,
resulting in a nearly stationary line of showers from south of the
Sterling Highway on the Kenai Peninsula all the way through
Palmer. The showers grew upscale with locally enhanced convergence
along the Turnagain Arm towards evening, which led to showers
able to generate impressive downpours for April across Anchorage
through the evening and into the overnight.

Showers and convective development also appeared once again over
Southwest Alaska yesterday, but their coverage was much sparser
than across Southcentral. This was largely due to the atmosphere
being somewhat drier across the area, and with no extra
convergence zones to aid in convective development across the
region. For the eastern Bering, the stacked low continued to
weaken and drift eastward through the day, keeping a similar
weather pattern over the region, though the weaker low was less
able to produce the coverage of shower activity and associated
clouds than in previous days. Over the western Bering, a strong
front continues to rapidly press eastward, leading to short
duration gale force winds and heavy rain as it passed through.

&&

.MODEL DISCUSSION...
The models start out in close agreement regarding the next low
and associated front moving across the Bering, but diverge a bit
Saturday on how quickly the parent low transfers its energy
towards the front and becomes stacked across the central Bering on
Saturday. Since this divergence is somewhat minimal and for most
populated areas does not represent a significant difference in the
overall forecast from model to model, the higher resolution NAM
was the choice for this morning's forecast. The primary forecast
challenge today remains much the same, determining the coverage
and intensity of shower activity. Other challenges are determining
the impacts from the front moving across the Bering and wind
funneling through the gaps in Southcentral, particularly Turnagain
Arm.

&&

.AVIATION...PANC remains on the edge of VFR condition, but
occasionally lower to MVFR as passing showers move through today.
Look for the winds to remain out of the south, but will increase
by late morning resulting in gusty conditions before weakening by
this evening.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The cloudy, showery pattern will continue today before drying
slightly over the weekend. Plentiful moisture, cold air aloft,
and seasonable temperatures will continue rain showers through the
day today. The coverage and intensity should be a bit weaker than
the last couple days as forcing is weaker. A weak low pressure
system forming in the Gulf on Saturday will reverse the pressure
gradient, bringing a bit more cross barrier flow to the Cook Inlet
region. Drying should occur from north of Kenai through the
Matanuska Valley with only mid-high level clouds remaining. The
approaching disturbance will affect the Kachemak Bay area late
tonight before the system moves northward and dissipates.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Low pressure remains dominant through the weekend bringing
continued chances for rain showers. Weak surface flow across
Southwest becomes southeasterly on Saturday and Sunday as a front
moves into the central Bering. Patchy fog is expected to re-
develop along the Kuskokwim Delta coast and potentially spreading
inland during the early morning hours. Fog conditions will
quickly improve by late morning with diurnal heating.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A Gale force front currently bringing gusty winds and moderate
rain to the Western Aleutians/Bering will move into the Central
Aleutians/Bering by this afternoon. The gusty winds and rain
associated with this system will push eastward into the Eastern
Aleutians/Bering Saturday, as the parent low weakens and moves
over the Western Aleutians. By Sunday, the low pressure system
weakens further with scattered showers lingering across the Bering
and Aleutians as weak short waves propagate around the associated
upper low.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The weekend will be characterized by a low moving through the
southern Bering that will keep cloud cover over much of the
southern mainland and Aleutians with continued shower activity.
As the low tracks across the Aleutians and into the Pacific on
Monday it will push a front into Southcentral Alaska bringing more
steady rain to the north Gulf coast. After this point the models
vary greatly on what to do with the low and another low
approaching the area from the south. Ensemble guidance was used
for mid week which brought a more middle ground and consolidated
low position into the Gulf Wednesday, which is also slightly
weaker than some of the operational models.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE WARNING...172 174 177 411.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...JW
SOUTHCENTRAL ALASKA...ML
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...TP
LONG TERM...DK