Small Craft Advisory 371, NWS Anchorage, AK

304 
FZAK52 PAFC 091139
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
339 AM AKDT TUE MAY 9 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.

PKZ199-100030-
339 AM AKDT TUE MAY 9 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 994 MB LOW 430 NM SOUTHWEST OF ATTU WILL WEAKEN TO 1000 MB AS 
IT MOVES TO 200 NM SOUTHWEST OF ATTU WED MORNING BEFORE DISSIPATING
BY WED AFTERNOON. A SECOND LOW WILL DEVELOP 210 NM WEST OF ADAK 
AT 996 MB WED MORNING AND STRENGTHEN TO 983 MB 220 NM WEST OF ADAK
WED NIGHT. THE ASSOCIATED FRONT WITH THE SECOND LOW WILL PUSH 
ACROSS THE EASTERN BERING SEA ON WED.

$$

PKZ150-100030-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
339 AM AKDT TUE MAY 9 2017

.TODAY...N WIND 15 KT. SEAS 6 FT.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED...VARIABLE WIND 10 KT. SEAS 3 FT.
.WED NIGHT...W WIND 15 KT. SEAS 3 FT.
.THU...S WIND 20 KT. SEAS 6 FT.
.FRI...SW WIND 15 KT. SEAS 9 FT.
.SAT...W WIND 15 KT. SEAS 10 FT.

$$

PKZ155-100030-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 5 FT.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED...SE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. FROM
THE SHUMAGIN ISLANDS E, VARIABLE WIND 10 KT. SEAS 4 FT.
.WED NIGHT...S WIND 25 KT. SEAS 8 FT.
.THU...S WIND 25 KT. SEAS 8 FT.
.FRI...SW WIND 25 KT. SEAS 12 FT.
.SAT...W WIND 20 KT. SEAS 12 FT.

$$

PKZ160-100030-
BRISTOL BAY-
339 AM AKDT TUE MAY 9 2017

.TODAY...VARIABLE WIND LESS THAN 10 KT BECOMING W 10 KT IN THE
AFTERNOON. SEAS 1 FOOT.
.TONIGHT...W WIND 10 KT. SEAS 1 FOOT.
.WED...NW WIND 10 KT. SEAS 2 FT.
.WED NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FOOT.
.THU...SE WIND 15 KT. SEAS 2 FT.
.FRI...SW WIND 10 KT. SEAS 3 FT.
.SAT...W WIND 15 KT. SEAS 4 FT.

$$

PKZ165-100030-
PORT HEIDEN TO CAPE SARICHEF-
339 AM AKDT TUE MAY 9 2017

.TODAY...VARIABLE WIND 10 KT. SEAS 3 FT. PATCHY MORNING FOG.
.TONIGHT...VARIABLE WIND 10 KT. SEAS 2 FT.
.WED...SE WIND 20 KT EXCEPT VARIABLE 10 KT FROM PORT MOLLER E.
SEAS 3 FT.
.WED NIGHT...SE WIND 25 KT. SEAS 5 FT.
.THU...SE WIND 25 KT. SEAS 5 FT.
.FRI THROUGH SAT...SW WIND 15 KT. SEAS 8 FT.

$$

PKZ170-100030-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 4 FT.
.TONIGHT...SE WIND 20 KT. SEAS 4 FT.
.WED...SE WIND 30 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 7 FT.
.THU...S WIND 30 KT. SEAS 7 FT.
.FRI...SW WIND 25 KT. SEAS 12 FT.
.SAT...S WIND 20 KT. SEAS 6 FT.

$$

PKZ171-100030-
UNALASKA BAY-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.
.TONIGHT...SE WIND 10 KT. SEAS 2 FT.
.WED...SE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 2
FT BUILDING TO 4 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...SE WIND 20 KT. SEAS 3 FT.
.THU...S WIND 25 KT. SEAS 3 FT.
.FRI...SW WIND 25 KT. SEAS 2 FT.
.SAT...S WIND 10 KT. SEAS 2 FT.

$$

PKZ172-100030-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...S WIND 10 KT. SEAS 4 FT.
.TONIGHT...SE WIND 20 KT. SEAS 5 FT.
.WED...SE WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...S WIND 25 KT. SEAS 9 FT.
.THU THROUGH FRI...SW WIND 35 KT. SEAS 16 FT.
.SAT...S WIND 20 KT. SEAS 10 FT.

$$

PKZ173-100030-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...SE WIND 20 KT. SEAS 5 FT.
.TONIGHT...SE WIND 20 KT. SEAS 5 FT.
.WED...SE WIND 25 KT. SEAS 7 FT. RAIN.
.WED NIGHT...S WIND 25 KT. SEAS 7 FT.
.THU...S WIND 35 KT. SEAS 13 FT.
.FRI...SW WIND 30 KT. SEAS 12 FT.
.SAT...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ174-100030-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...S WIND 15 KT. SEAS 5 FT.
.TONIGHT...SE WIND 20 KT. SEAS 7 FT.
.WED...SE WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...S WIND 25 KT. SEAS 11 FT.
.THU THROUGH FRI...SW WIND 35 KT. SEAS 20 FT.
.SAT...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ175-100030-
SEGUAM ISLAND TO ADAK BERING SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...S WIND 15 KT. SEAS 5 FT.
.TONIGHT...SE WIND 15 KT. SEAS 4 FT.
.WED...SE WIND 25 KT. SEAS 6 FT.
.WED NIGHT...S WIND 25 KT. SEAS 8 FT.
.THU...SW WIND 35 KT. SEAS 10 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ176-100030-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...S WIND 10 KT. SEAS 7 FT.
.TONIGHT...SE WIND 15 KT. SEAS 8 FT.
.WED...SE WIND 20 KT BECOMING S 30 KT IN THE AFTERNOON. SEAS 8 FT.
.WED NIGHT...S WIND 35 KT. SEAS 14 FT.
.THU...SW WIND 40 KT. SEAS 22 FT.
.FRI...SW WIND 35 KT. SEAS 14 FT.
.SAT...SE WIND 20 KT. SEAS 8 FT.

$$

PKZ177-100030-
ADAK TO KISKA-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...S WIND 15 KT. SEAS 9 FT.
.TONIGHT...SE WIND 15 KT. SEAS 7 FT.
.WED...E WIND 20 KT BECOMING SE 30 KT IN THE AFTERNOON. SEAS 8 FT.
RAIN.
.WED NIGHT...SE WIND 30 KT. SEAS 13 FT.
.THU...W WIND 30 KT. SEAS 14 FT.
.FRI THROUGH SAT...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ178-100030-
KISKA TO ATTU-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...S WIND 15 KT. SEAS 9 FT.
.TONIGHT...S WIND 15 KT. SEAS 7 FT.
.WED...N WIND 25 KT. SEAS 9 FT. RAIN SHOWERS.
.WED NIGHT...N WIND 25 KT. SEAS 8 FT.
.THU...SW WIND 15 KT. SEAS 9 FT.
.FRI...SE WIND 25 KT. SEAS 8 FT.
.SAT...E WIND 25 KT. SEAS 12 FT.

$$

PKZ179-100030-
PRIBILOF ISLANDS NEAR SHORE WATERS-
339 AM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 3 FT. PATCHY MORNING FOG.
.TONIGHT...SE WIND 15 KT. SEAS 3 FT.
.WED...E WIND 25 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 30 KT. SEAS 9 FT.
.THU...SE WIND 25 KT. SEAS 8 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 8 FT.
.SAT...SE WIND 15 KT. SEAS 4 FT.

$$

PKZ180-100030-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
339 AM AKDT TUE MAY 9 2017

.TODAY...NW WIND 10 KT. SEAS 2 FT. PATCHY MORNING FOG.
.TONIGHT...NW WIND 10 KT. SEAS 2 FT.
.WED...NE WIND 10 KT BECOMING E IN THE AFTERNOON. SEAS 2 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 4 FT.
.THU...SE WIND 25 KT. SEAS 5 FT.
.FRI...S WIND 10 KT. SEAS 5 FT.
.SAT...W WIND 15 KT. SEAS 4 FT.

$$

PKZ181-100030-
NORTH AND WEST OF NUNIVAK ISLAND-
339 AM AKDT TUE MAY 9 2017

.TODAY...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. PATCHY
MORNING FOG.
.TONIGHT...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.WED...E WIND 10 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.THU...E WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 4 FT.
.SAT...VARIABLE WIND 10 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

PKZ185-100030-
SAINT MATTHEW ISLAND WATERS-
339 AM AKDT TUE MAY 9 2017

.TODAY...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.TONIGHT...SE WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED...E WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.WED NIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT.
.THU...E WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT.
.FRI...NE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 6 FT.

$$

281 
FZAK52 PAFC 092328
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
328 PM AKDT TUE MAY 9 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.

PKZ199-101245-
328 PM AKDT TUE MAY 9 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
HIGH PRESSURE OVER THE EASTERN BERING SEA AND ALASKA PENINSULA 
DISSIPATES THU MORNING. A 991 MB LOW 360 NM SOUTHWEST OF ATTU 
MOVES TO 30 NM SOUTHWEST OF AMCHITKA AT 990 MB WED AFTERNOON 
THEN SHIFTS TO 130 NM NORTHWEST OF ADAK BY THU AFTERNOON. THE 
ASSOCIATED FRONT STRETCHES OVER THE ALEUTIANS WHILE THE TRAILING 
FRONT EXTENDS TOWARD THE KAMCHATKA PENINSULA. 

$$

PKZ150-101245-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
328 PM AKDT TUE MAY 9 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED NIGHT...W WIND 15 KT. SEAS 3 FT.
.THU AND THU NIGHT...S WIND 20 KT. SEAS 5 FT.
.FRI...SW WIND 20 KT. SEAS 9 FT.
.SAT...W WIND 15 KT. SEAS 10 FT.
.SUN...SW WIND 15 KT. SEAS 6 FT.

$$

PKZ155-101245-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED...S WIND 15 KT BECOMING SE 25 KT IN THE AFTERNOON. FROM 
THE SHUMAGIN ISLANDS E...VARIABLE WIND 10 KT. SEAS 4 FT.
.WED NIGHT...SE WIND 30 KT. FROM THE SHUMAGIN ISLANDS E...VARIABLE 
WIND 10 KT BECOMING S 20 KT AFTER MIDNIGHT. SEAS 8 FT. RAIN.
.THU...S WIND 25 KT. SEAS 8 FT.
.THU NIGHT...S WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 30 KT. SEAS 12 FT.
.SAT...W WIND 20 KT. SEAS 12 FT.
.SUN...S WIND 15 KT. SEAS 6 FT.

$$

PKZ160-101245-
BRISTOL BAY-
328 PM AKDT TUE MAY 9 2017

.TONIGHT...W WIND 10 KT. SEAS 1 FT.
.WED...NW WIND 10 KT. SEAS 2 FT.
.WED NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 1 FT.
.THU AND THU NIGHT...SE WIND 15 KT. SEAS 3 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.
.SAT...W WIND 15 KT. SEAS 4 FT.
.SUN...SW WIND 10 KT. SEAS 4 FT.

$$

PKZ165-101245-
PORT HEIDEN TO CAPE SARICHEF-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 2 FT.
.WED...SE WIND 20 KT EXCEPT VARIABLE 10 KT FROM PORT MOLLER E.
SEAS 3 FT.
.WED NIGHT...SE WIND 30 KT. FROM PORT MOLLER E...SE WIND 15 KT 
INCREASING TO 25 KT AFTER MIDNIGHT. SEAS 5 FT.
.THU...SE WIND 25 KT. SEAS 5 FT.
.THU NIGHT...S WIND 20 KT. SEAS 4 FT.
.FRI...SW WIND 30 KT. SEAS 8 FT.
.SAT...SW WIND 15 KT. SEAS 7 FT.
.SUN...SE WIND 15 KT. SEAS 3 FT.

$$

PKZ170-101245-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
328 PM AKDT TUE MAY 9 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 4 FT.
.WED...SE WIND 30 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 35 KT. SEAS 9 FT. RAIN.
.THU AND THU NIGHT...S WIND 30 KT. SEAS 8 FT.
.FRI...SW WIND 35 KT. SEAS 13 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ171-101245-
UNALASKA BAY-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SE WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. 
SEAS 2 FT.
.WED...SE WIND 25 KT. SEAS 4 FT. RAIN.
.WED NIGHT...SE WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT.
SEAS 5 FT SUBSIDING TO 3 FT AFTER MIDNIGHT. RAIN.
.THU...S WIND 15 KT. SEAS 2 FT.
.THU NIGHT...S WIND 20 KT. SEAS 3 FT.
.FRI...SW WIND 35 KT. SEAS 5 FT.
.SAT THROUGH SUN...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-101245-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 5 FT.
.WED...SE WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...SE WIND 30 KT. SEAS 10 FT. RAIN.
.THU...S WIND 25 KT. SEAS 9 FT.
.THU NIGHT...S WIND 30 KT. SEAS 12 FT.
.FRI...SW WIND 30 KT. SEAS 14 FT.
.SAT...S WIND 20 KT. SEAS 10 FT.
.SUN...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ173-101245-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 5 FT.
.WED...SE WIND 30 KT. SEAS 8 FT. RAIN.
.WED NIGHT...S WIND 30 KT. SEAS 8 FT. RAIN.
.THU...S WIND 25 KT. SEAS 9 FT.
.THU NIGHT...S WIND 35 KT. SEAS 12 FT.
.FRI...SW WIND 35 KT. SEAS 14 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ174-101245-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 7 FT. RAIN.
.WED...SE WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...S WIND 30 KT. SEAS 11 FT. RAIN.
.THU...S WIND 25 KT. SEAS 13 FT.
.THU NIGHT...SW WIND 35 KT. SEAS 17 FT.
.FRI...SW WIND 30 KT. SEAS 17 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 9 FT.

$$

PKZ175-101245-
SEGUAM ISLAND TO ADAK BERING SIDE-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 4 FT.
.WED...E WIND 20 KT BECOMING SE 30 KT IN THE AFTERNOON. 
SEAS 4 FT BUILDING TO 8 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...S WIND 30 KT. SEAS 8 FT. RAIN.
.THU...S WIND 40 KT. SEAS 12 FT.
.THU NIGHT...SW WIND 35 KT. SEAS 13 FT.
.FRI...SW WIND 30 KT. SEAS 12 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ176-101245-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 8 FT.
.WED...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. 
SEAS 8 FT. RAIN.
.WED NIGHT...S WIND 30 KT. SEAS 13 FT. RAIN SHOWERS.
.THU AND THU NIGHT...SW WIND 40 KT. SEAS 21 FT.
.FRI...SW WIND 30 KT. SEAS 16 FT.
.SAT...SE WIND 20 KT. SEAS 8 FT.
.SUN...S WIND 15 KT. SEAS 9 FT.

$$

PKZ177-101245-
ADAK TO KISKA-
328 PM AKDT TUE MAY 9 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 7 FT. RAIN.
.WED...E WIND 30 KT. SEAS 9 FT. RAIN.
.WED NIGHT...S WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. 
SEAS 11 FT BUILDING TO 16 FT AFTER MIDNIGHT. RAIN.
.THU...SW WIND 45 KT. SEAS 20 FT.
.THU NIGHT...W WIND 35 KT. SEAS 17 FT.
.FRI THROUGH SAT...SE WIND 20 KT. SEAS 10 FT.
.SUN...SE WIND 15 KT. SEAS 8 FT.

$$

PKZ178-101245-
KISKA TO ATTU-
328 PM AKDT TUE MAY 9 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...S WIND 15 KT. SEAS 7 FT.
.WED...N WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...N WIND 40 KT. SEAS 11 FT. RAIN SHOWERS.
.THU...N WIND 35 KT. SEAS 11 FT.
.THU NIGHT...S WIND 25 KT. SEAS 10 FT.
.FRI...E WIND 25 KT. SEAS 8 FT.
.SAT...E WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 9 FT.

$$

PKZ179-101245-
PRIBILOF ISLANDS NEAR SHORE WATERS-
328 PM AKDT TUE MAY 9 2017

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 3 FT.
.WED...E WIND 25 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 35 KT. SEAS 11 FT. RAIN.
.THU...SE WIND 30 KT. SEAS 10 FT.
.THU NIGHT...SE WIND 20 KT. SEAS 7 FT.
.FRI...N WIND 20 KT. SEAS 8 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ180-101245-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
328 PM AKDT TUE MAY 9 2017

.TONIGHT...NW WIND 10 KT. SEAS 2 FT.
.WED...NE WIND 10 KT BECOMING E IN THE AFTERNOON. SEAS 2 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 4 FT.
.THU...SE WIND 25 KT. SEAS 5 FT.
.THU NIGHT...SE WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.
.SAT...W WIND 15 KT. SEAS 4 FT.
.SUN...SW WIND 10 KT. SEAS 2 FT.

$$

PKZ181-101245-
NORTH AND WEST OF NUNIVAK ISLAND-
328 PM AKDT TUE MAY 9 2017

.TONIGHT...VARIABLE WIND 10 KT. SEAS 1 FT.
.WED...E WIND 15 KT. SEAS 2 FT.
.WED NIGHT...E WIND 20 KT. SEAS 4 FT.
.THU...E WIND 25 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 6 FT.
.FRI...NE WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ185-101245-
SAINT MATTHEW ISLAND WATERS-
328 PM AKDT TUE MAY 9 2017

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...SE WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.WED...SE WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.WED NIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT.
.THU...E WIND 35 KT. SEAS IN ICE FREE WATERS 12 FT.
.THU NIGHT...E WIND 25 KT. SEAS IN ICE FREE WATERS 11 FT.
.FRI...NE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
418 AM AKDT Mon May 8 2017

.ANALYSIS AND UPPER LEVELS...
Water Vapor satellite shows two strong waves rotating around a
broad trough centered just south of the Alaska Peninsula. One wave
is propagating north toward Kodiak Island while the other is
swinging southward on the backside of the system over the western
Peninsula. West of this system is a ridge with an axis along the
western Bering. Abundant subtropical moisture is streaming up
along the ridge from the North Pacific to the western and central
Aleutians. At the surface, a front is weakening across the
northern gulf with a few showers developing along the diffuse
boundary over the northern waters and Prince William Sound. The
surface low that moved the front into the gulf yesterday is now on
a southerly track crossing the Alaska Peninsula from the Bering.
Light rain continues around this surface feature with coverage this
morning from the central Bering to the eastern Aleutians and Alaska
Peninsula.

&&

.MODEL DISCUSSION...
Models are in relatively good agreement through the first 48 hours
as the pattern slowly changes. The general trend shifts the broad
low southeast into the middle of the week as the ridge across the
Bering moves east. Models are differing with their solutions on
the next North Pacific low progged to move into the western Chain
on Wednesday. The middle range solution of the GFS was used for
updates across the Southwest and Bering with the NAM utilized
across Southcentral and the Gulf.

&&

.AVIATION...
PANC...VFR conditions continue through the next TAF package. Light
winds this morning increase out of the southeast this afternoon
with gusts through late evening. Winds taper off after midnight as
the inverted trough along the northern gulf diminishes.

&&

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

Broad east-northeasterly flow aloft with weak waves will
continues across Southcentral through Tuesday. A fairly vigorous
upper wave and surface front head toward the southern Gulf tonight
but should weaken and stall over the Gulf Tuesday. The main
impact with this feature will be to keep rain/showers concentrated
over the Gulf coastal locations along with some small crafts over
Shelikof Strait.

Some spotty shower activity will also occur inland across
Southcentral and may become more tied to afternoon heating as we
progress into Tuesday. Stability indices on Tuesday afternoon and
evening show the potential for a few thunderstorms along the
Alaska Range boarding the Copper River Basin.

The thermal thermal trough over the interior combined with weak
ridging along the coast and lower pressure west of the Chugach
Mountains will give rise to brisk winds across: Turnagain
arm (easterly), Knik River Valley (southeasterly), and the Copper
River (south) this afternoon and evening. It looks like the
gradients will be weaker on Tuesday with mainly seabreezes as the
main wind event.

&&

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

Rainfall has largely tapered off across Southwest Alaska
overnight as a weakening area of low pressure has moved south into
the northern Pacific Ocean. Gusty winds have begun to subside and
should continue to as the pressure gradient continues to relax.
It appears as if the thermal trough will begin to build across
Southwest Alaska with ample heating across the interior of Alaska.
This should help for daily afternoon convection across portions
of the area with the vast majority of the showers likely confined
near higher elevation thanks to weak storm motion vectors.
Thunderstorm potential still looks rather minuscule at this time
as some pesky clouds should hover over the area preventing too
much destabilization.

&&

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

As one systems exits the Bering Sea, a second one almost always
seems to follow. This is the case today as an area of low pressure
moves from the southern Bering Sea into the North Pacific while a
gale force front pushes into the western Bering Sea. The front
should weaken as it pushes eastward with the front stalling out
and decaying over the central Bering Sea on Tuesday and Wednesday.
As this front fizzles out on Wednesday, a shortwave traversing the
longwave pattern will spin up a low pressure system south of Adak
which looks to phase with an area of low pressure near Shemya.
This will help spin up a rather strong low pressure system that
could deepen close to 24 mb over a 24 hour period depending on
your model of choice. This will easily bring gale force winds back
to the southern Bering Sea with storm force gusts possible near
the Central Aleutians late Wednesday.

&&

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

Much of southcentral Alaska will remain away from the focus for
the medium range as the primary focus points towards SE Alaska. A
stacked low pressure system in the western Aleutians will slowly
weaken just to the west of our marine forecast area. Meanwhile the
Pacific jet will buckle and drive a triple point low north and
across the western Aleutian chain. At this stage for the end of
the week low, model guidance is in good agreement with the
location of the low, but not on the intensity. The afternoon
medium range forecast ended up being a blend between the 12z GFS
and 00z GEFS mean/ECMWF/ECMWF ensemble mean, with slightly less
weight towards the ECMWF since it currently looks like a strong
outlier with tracking the closed low and an associated surface low
from the western Aleutians to the northeast Pacific
Friday/Saturday. For the Anchorage area, skies are expected to
clear come midweek with daytime temperatures beginning to broach
the 60 degree mark. The average first 60 degree day in Anchorage
is typically around May 13. The last 60 degree day Anchorage saw
was September 13, 2016.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALES 178.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...KH
SOUTHCENTRAL ALASKA...BC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MC
LONG TERM...SS