Gale Warning 337, NWS Anchorage, AK

435 
FZAK52 PAFC 222330
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
330 PM AKDT MON MAY 22 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.

PKZ199-231245-
330 PM AKDT MON MAY 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 990 MB LOW 320 NM NORTH OF SHEMYA WILL MOVE TO 115 NM SOUTH OF 
GAMBELL AT 1000 MB BY WED AFTERNOON. AN ASSOCIATED FRONT OVER THE
CENTRAL BERING WILL MOVE INLAND OVER THE SOUTHWEST COAST TONIGHT.
ANOTHER FRONT OVER THE CENTRAL ALEUTIANS WILL MOVE TO THE EASTERN
BERING TUE AFTERNOON AND MOVE INLAND OVER THE ALASKA PENINSULA 
TUE NIGHT.

$$

PKZ150-231245-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
330 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 30 KT. SEAS 10 FT.
.TUE NIGHT...SW WIND 35 KT. SEAS 12 FT. RAIN.
.WED...SW WIND 30 KT. SEAS 13 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU...W WIND 15 KT. SEAS 7 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 25 KT. SEAS 9 FT.

$$

PKZ155-231245-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
330 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 35 KT. SEAS 12 FT. RAIN.
.TUE NIGHT...SW WIND 35 KT. SEAS 14 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 12 FT.
.WED NIGHT...W WIND 20 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 20 KT. SEAS 9 FT.
.SAT...SE WIND 25 KT. SEAS 12 FT.

$$

PKZ160-231245-
BRISTOL BAY-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 6 FT. RAIN.
.TUE...S WIND 20 KT. SEAS 5 FT. RAIN.
.TUE NIGHT...S WIND 25 KT. SEAS 6 FT. RAIN.
.WED AND WED NIGHT...SW WIND 20 KT. SEAS 6 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 20 KT. SEAS 4 FT.

$$

PKZ165-231245-
PORT HEIDEN TO CAPE SARICHEF-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ170-231245-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 8 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 15 KT. SEAS 6 FT.

$$

PKZ171-231245-
UNALASKA BAY-
330 PM AKDT MON MAY 22 2017

.TONIGHT...SW WIND 20 KT. SEAS 3 FT. RAIN.
.TUE...S WIND 20 KT. SEAS 3 FT. RAIN.
.TUE NIGHT...W WIND 15 KT. SEAS 2 FT. RAIN.
.WED...W WIND 25 KT. SEAS 4 FT.
.WED NIGHT...W WIND 20 KT. SEAS 3 FT.
.THU...W WIND 20 KT. SEAS 3 FT.
.FRI...S WIND 15 KT. SEAS 2 FT.
.SAT...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-231245-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
330 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TONIGHT...SW WIND 30 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TUE NIGHT...SW WIND 30 KT. SEAS 14 FT. RAIN.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 25 KT. SEAS 11 FT.
.SAT...SE WIND 20 KT. SEAS 11 FT.

$$

PKZ173-231245-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...W WIND 20 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 25 KT. SEAS 7 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ174-231245-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
330 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TONIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...W WIND 20 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 25 KT. SEAS 13 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 11 FT.

$$

PKZ175-231245-
SEGUAM ISLAND TO ADAK BERING SIDE-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. SEAS
10 FT. RAIN.
.TUE...W WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 8
FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 8 FT.
.THU THROUGH FRI...SW WIND 25 KT. SEAS 6 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ176-231245-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN.
.TUE...W WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
11 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED AND WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 9 FT.
.FRI...SW WIND 30 KT. SEAS 14 FT.
.SAT...W WIND 15 KT. SEAS 10 FT.

$$

PKZ177-231245-
ADAK TO KISKA-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 9 FT.
.THU THROUGH FRI...W WIND 30 KT. SEAS 14 FT.
.SAT...W WIND 15 KT. SEAS 8 FT.

$$

PKZ178-231245-
KISKA TO ATTU-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 12 FT.
.TUE...W WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 20 KT. SEAS 8 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 12 FT.
.FRI...W WIND 25 KT. SEAS 12 FT.
.SAT...W WIND 15 KT. SEAS 8 FT.

$$

PKZ179-231245-
PRIBILOF ISLANDS NEAR SHORE WATERS-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 11 FT. RAIN.
.TUE...S WIND 15 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 8 FT. RAIN SHOWERS.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 15 KT. SEAS 7 FT.

$$

PKZ180-231245-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 8 FT. RAIN.
.TUE...SW WIND 20 KT. SEAS 8 FT.
.TUE NIGHT...S WIND 25 KT. SEAS 7 FT.
.WED AND WED NIGHT...SW WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.
.SAT...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ181-231245-
NORTH AND WEST OF NUNIVAK ISLAND-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S WIND 25 KT. SEAS 7 FT. RAIN SHOWERS.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.TUE NIGHT...S WIND 15 KT. SEAS 7 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ185-231245-
SAINT MATTHEW ISLAND WATERS-
330 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 9 FT. RAIN AND SNOW SHOWERS.
.TUE...S WIND 25 KT. SEAS 11 FT.
.TUE NIGHT...S WIND 20 KT. SEAS 10 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...SE WIND 15 KT. SEAS 6 FT.

$$

366 
FZAK52 PAFC 222332 CCA
CWFALU

COASTAL WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
332 PM AKDT MON MAY 22 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.

PKZ199-231245-
332 PM AKDT MON MAY 22 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

BOGOSLOF VOLCANO LOCATED APPROXIMATELY 55 NM WEST OF DUTCH
HARBOR IS CURRENTLY ACTIVE. A 990 MB LOW 320 NM NORTH OF SHEMYA
WILL MOVE TO 115 NM SOUTH OF GAMBELL AT 1000 MB BY WED AFTERNOON.
AN ASSOCIATED FRONT OVER THE CENTRAL BERING WILL MOVE INLAND OVER
THE SOUTHWEST COAST TONIGHT. ANOTHER FRONT OVER THE CENTRAL 
ALEUTIANS WILL MOVE TO THE EASTERN BERING TUE AFTERNOON AND MOVE 
INLAND OVER THE ALASKA PENINSULA TUE NIGHT.

$$

PKZ150-231245-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
332 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 30 KT. SEAS 10 FT.
.TUE NIGHT...SW WIND 35 KT. SEAS 12 FT. RAIN.
.WED...SW WIND 30 KT. SEAS 13 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU...W WIND 15 KT. SEAS 7 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 25 KT. SEAS 9 FT.

$$

PKZ155-231245-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
332 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 35 KT. SEAS 12 FT. RAIN.
.TUE NIGHT...SW WIND 35 KT. SEAS 14 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 12 FT.
.WED NIGHT...W WIND 20 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 20 KT. SEAS 9 FT.
.SAT...SE WIND 25 KT. SEAS 12 FT.

$$

PKZ160-231245-
BRISTOL BAY-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 6 FT. RAIN.
.TUE...S WIND 20 KT. SEAS 5 FT. RAIN.
.TUE NIGHT...S WIND 25 KT. SEAS 6 FT. RAIN.
.WED AND WED NIGHT...SW WIND 20 KT. SEAS 6 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 20 KT. SEAS 4 FT.

$$

PKZ165-231245-
PORT HEIDEN TO CAPE SARICHEF-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ170-231245-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 8 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 15 KT. SEAS 6 FT.

$$

PKZ171-231245-
UNALASKA BAY-
332 PM AKDT MON MAY 22 2017

.TONIGHT...SW WIND 20 KT. SEAS 3 FT. RAIN.
.TUE...S WIND 20 KT. SEAS 3 FT. RAIN.
.TUE NIGHT...W WIND 15 KT. SEAS 2 FT. RAIN.
.WED...W WIND 25 KT. SEAS 4 FT.
.WED NIGHT...W WIND 20 KT. SEAS 3 FT.
.THU...W WIND 20 KT. SEAS 3 FT.
.FRI...S WIND 15 KT. SEAS 2 FT.
.SAT...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-231245-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
332 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TONIGHT...SW WIND 30 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TUE NIGHT...SW WIND 30 KT. SEAS 14 FT. RAIN.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 25 KT. SEAS 11 FT.
.SAT...SE WIND 20 KT. SEAS 11 FT.

$$

PKZ173-231245-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...W WIND 20 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 25 KT. SEAS 7 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ174-231245-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
332 PM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TONIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...W WIND 20 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 25 KT. SEAS 13 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 11 FT.

$$

PKZ175-231245-
SEGUAM ISLAND TO ADAK BERING SIDE-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. SEAS
10 FT. RAIN.
.TUE...W WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 8
FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 8 FT.
.THU THROUGH FRI...SW WIND 25 KT. SEAS 6 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ176-231245-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN.
.TUE...W WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
11 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED AND WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 9 FT.
.FRI...SW WIND 30 KT. SEAS 14 FT.
.SAT...W WIND 15 KT. SEAS 10 FT.

$$

PKZ177-231245-
ADAK TO KISKA-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 9 FT.
.THU THROUGH FRI...W WIND 30 KT. SEAS 14 FT.
.SAT...W WIND 15 KT. SEAS 8 FT.

$$

PKZ178-231245-
KISKA TO ATTU-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 12 FT.
.TUE...W WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 20 KT. SEAS 8 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 12 FT.
.FRI...W WIND 25 KT. SEAS 12 FT.
.SAT...W WIND 15 KT. SEAS 8 FT.

$$

PKZ179-231245-
PRIBILOF ISLANDS NEAR SHORE WATERS-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 11 FT. RAIN.
.TUE...S WIND 15 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 8 FT. RAIN SHOWERS.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...SE WIND 15 KT. SEAS 7 FT.

$$

PKZ180-231245-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 8 FT. RAIN.
.TUE...SW WIND 20 KT. SEAS 8 FT.
.TUE NIGHT...S WIND 25 KT. SEAS 7 FT.
.WED AND WED NIGHT...SW WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.
.SAT...SE WIND 20 KT. SEAS 6 FT.

$$

PKZ181-231245-
NORTH AND WEST OF NUNIVAK ISLAND-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S WIND 25 KT. SEAS 7 FT. RAIN SHOWERS.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.TUE NIGHT...S WIND 15 KT. SEAS 7 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ185-231245-
SAINT MATTHEW ISLAND WATERS-
332 PM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 20 KT. SEAS 9 FT. RAIN AND SNOW SHOWERS.
.TUE...S WIND 25 KT. SEAS 11 FT.
.TUE NIGHT...S WIND 20 KT. SEAS 10 FT.
.WED AND WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 6 FT.
.FRI THROUGH SAT...SE WIND 15 KT. SEAS 6 FT.

$$

964 
FZAK52 PAFC 231158
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
358 AM AKDT TUE MAY 23 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.

PKZ199-240030-
358 AM AKDT TUE MAY 23 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO LOCATED APPROXIMATELY 55 NM WEST OF DUTCH
HARBOR IS CURRENTLY ACTIVE. A 993 MB LOW 320 NM SOUTHWEST OF GAMBELL
WILL MOVE TO 165 NM SOUTHWEST OF GAMBELL AT 1001 MB BY WED AFTERNOON
BEFORE BEING ABSORBED BY A DEVELOPING LOW NORTH OF THE BERING STRAIT
THU MORNING. AN ASSOCIATED FRONT OVER THE EASTERN BERING WILL MOVE 
INLAND OVER THE SOUTHWEST COAST TODAY. THE NEXT FRONT WILL APPROACH 
THE WESTERN ALEUTIANS BY THU MORNING.

$$

PKZ150-240030-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW WIND 30 KT. SEAS 11 FT.
.TONIGHT...SW WIND 30 KT. SEAS 13 FT. RAIN.
.WED...SW WIND 30 KT. SEAS 13 FT. RAIN.
.WED NIGHT...SW WIND 20 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 15 KT. SEAS 6 FT.
.SAT...SE WIND 25 KT. SEAS 7 FT.

$$

PKZ155-240030-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
358 AM AKDT TUE MAY 23 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TONIGHT...SW WIND 35 KT. SEAS 14 FT. RAIN.
.WED...W WIND 30 KT. SEAS 12 FT.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 7 FT.
.SAT...SE WIND 20 KT. SEAS 7 FT.

$$

PKZ160-240030-
BRISTOL BAY-
358 AM AKDT TUE MAY 23 2017

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

.TODAY...S WIND 20 KT. SEAS 5 FT. RAIN.
.TONIGHT...S WIND 25 KT. SEAS 6 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 6 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 7 FT.
.THU...SW WIND 25 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ165-240030-
PORT HEIDEN TO CAPE SARICHEF-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S WIND 25 KT. SEAS 9 FT. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 8 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 9 FT.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...SW WIND 20 KT. SEAS 10 FT.
.FRI...S WIND 15 KT. SEAS 6 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ170-240030-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S WIND 25 KT. SEAS 9 FT. RAIN.
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. 
SEAS 9 FT.
.WED...W WIND 30 KT. SEAS 10 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...E WIND 15 KT. SEAS 5 FT.

$$

PKZ171-240030-
UNALASKA BAY-
358 AM AKDT TUE MAY 23 2017

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

.TODAY...SW WIND 25 KT. SEAS 4 FT. RAIN.
.TONIGHT...W WIND 20 KT. SEAS 3 FT.
.WED...W WIND 25 KT. SEAS 4 FT. RAIN SHOWERS.
.WED NIGHT...W WIND 25 KT. SEAS 4 FT.
.THU...W WIND 15 KT. SEAS 2 FT.
.FRI...S WIND 10 KT. SEAS 2 FT.
.SAT...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-240030-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
358 AM AKDT TUE MAY 23 2017

...GALE WARNING TODAY...

.TODAY...SW WIND 35 KT. SEAS 14 FT. RAIN.
.TONIGHT...SW WIND 30 KT. SEAS 14 FT.
.WED...W WIND 25 KT. SEAS 11 FT.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 7 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ173-240030-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. 
SEAS 10 FT.
.TONIGHT...W WIND 30 KT. SEAS 10 FT.
.WED...W WIND 30 KT. SEAS 12 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ174-240030-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
358 AM AKDT TUE MAY 23 2017

...GALE WARNING TODAY...

.TODAY...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TONIGHT...W WIND 25 KT. SEAS 11 FT.
.WED...W WIND 25 KT. SEAS 11 FT.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU THROUGH FRI...SW WIND 25 KT. SEAS 9 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ175-240030-
SEGUAM ISLAND TO ADAK BERING SIDE-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W WIND 25 KT. SEAS 8 FT.
.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.WED...W WIND 30 KT. SEAS 11 FT. PATCHY FOG.
.WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 15 KT. SEAS 6 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ176-240030-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 11 FT. PATCHY FOG.
.WED NIGHT...W WIND 25 KT. SEAS 9 FT.
.THU THROUGH FRI...SW WIND 25 KT. SEAS 10 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ177-240030-
ADAK TO KISKA-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W WIND 25 KT. SEAS 10 FT.
.TONIGHT...W WIND 30 KT. SEAS 10 FT. AREAS OF FOG.
.WED...W WIND 25 KT. SEAS 10 FT. AREAS OF FOG.
.WED NIGHT...SW WIND 30 KT. SEAS 9 FT.
.THU...W WIND 25 KT. SEAS 10 FT.
.FRI...W WIND 20 KT. SEAS 7 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 7 FT.

$$

PKZ178-240030-
KISKA TO ATTU-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W WIND 25 KT. SEAS 10 FT.
.TONIGHT...W WIND 30 KT. SEAS 10 FT. AREAS OF FOG.
.WED...W WIND 20 KT. SEAS 8 FT. AREAS OF FOG.
.WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.
.FRI THROUGH SAT...W WIND 15 KT. SEAS 7 FT.

$$

PKZ179-240030-
PRIBILOF ISLANDS NEAR SHORE WATERS-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW WIND 15 KT. SEAS 9 FT.
.TONIGHT...SW WIND 20 KT. SEAS 8 FT. RAIN SHOWERS.
.WED...W WIND 25 KT. SEAS 10 FT. RAIN SHOWERS.
.WED NIGHT...W WIND 30 KT. SEAS 12 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ180-240030-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
358 AM AKDT TUE MAY 23 2017

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

.TODAY...SW WIND 20 KT. SEAS 7 FT.
.TONIGHT...S WIND 25 KT. SEAS 7 FT.
.WED...SW WIND 25 KT. SEAS 7 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 9 FT.
.THU...W WIND 25 KT. SEAS 9 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ181-240030-
NORTH AND WEST OF NUNIVAK ISLAND-
358 AM AKDT TUE MAY 23 2017

.TODAY...S WIND 20 KT. SEAS 7 FT.
.TONIGHT...S WIND 15 KT. SEAS 6 FT.
.WED...SW WIND 20 KT. SEAS 6 FT.
.WED NIGHT...W WIND 20 KT. SEAS 7 FT.
.THU...W WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ185-240030-
SAINT MATTHEW ISLAND WATERS-
358 AM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S WIND 30 KT. SEAS 11 FT.
.TONIGHT...SW WIND 20 KT. SEAS 9 FT.
.WED...SW WIND 20 KT E OF SAINT MATTHEW ISLAND...NW 25 KT W OF SAINT
MATTHEW ISLAND. SEAS 9 FT.
.WED NIGHT...W WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.

$$

105 
FZAK52 PAFC 232330
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
330 PM AKDT TUE MAY 23 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.

PKZ199-241215-
330 PM AKDT TUE MAY 23 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

BOGOSLOF VOLCANO LOCATED APPROXIMATELY 55 NM WEST OF DUTCH
HARBOR IS CURRENTLY ACTIVE. 

A FRONT OVER THE EASTERN BERING WILL MOVE INLAND OVER THE 
SOUTHWEST COAST AND ALASKA PENINSULA THIS EVENING. THE NEXT FRONT 
WILL APPROACH THE WESTERN ALEUTIANS WED AFTERNOON AND MOVE TO THE
CENTRAL ALEUTIANS THU. 

$$

PKZ150-241215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
330 PM AKDT TUE MAY 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT. SEAS 14 FT. RAIN.
.WED...SW WIND 30 KT. SEAS 14 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 10 FT.
.THU...W WIND 25 KT. SEAS 9 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 20 KT. SEAS 7 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 7 FT.

$$

PKZ155-241215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
330 PM AKDT TUE MAY 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT. SEAS 15 FT. RAIN.
.WED...W WIND 30 KT. SEAS 13 FT.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 25 KT. SEAS 9 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI THROUGH SUN...SE WIND 20 KT. SEAS 7 FT.

$$

PKZ160-241215-
BRISTOL BAY-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...SE WIND 20 KT BECOMING SW 25 KT IN THE EVENING. SEAS
BUILDING TO 7 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 7 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 7 FT.
.THU...SW WIND 25 KT. SEAS 8 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI...SE WIND 15 KT. SEAS 3 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ165-241215-
PORT HEIDEN TO CAPE SARICHEF-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...SW WIND 25 KT. GUSTS TO 35 KT OUT OF BAYS AND PASSES IN 
THE EVENING. SEAS 9 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 10 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...W WIND 25 KT. SEAS 11 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 8 FT.
.FRI...E WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ170-241215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS
10 FT. RAIN.
.WED...SW WIND 30 KT. SEAS 11 FT.
.WED NIGHT...W WIND 25 KT. SEAS 12 FT.
.THU...SW WIND 20 KT. SEAS 11 FT.
.THU NIGHT...NW WIND 15 KT. SEAS 7 FT.
.FRI...W WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ171-241215-
UNALASKA BAY-
330 PM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...W WIND 15 KT. SEAS 2 FT. RAIN.
.WED...W WIND 25 KT. SEAS 4 FT.
.WED NIGHT...W WIND 20 KT. SEAS 3 FT.
.THU...SW WIND 15 KT. SEAS 2 FT.
.THU NIGHT...NE WIND 10 KT. SEAS 3 FT.
.FRI...W WIND 10 KT. SEAS 3 FT.
.SAT...SE WIND 10 KT. SEAS 2 FT.
.SUN...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ172-241215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
330 PM AKDT TUE MAY 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT BECOMING W 25 KT AFTER MIDNIGHT. SEAS
15 FT. RAIN.
.WED...W WIND 25 KT. SEAS 11 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 25 KT. SEAS 9 FT.
.THU NIGHT...W WIND 20 KT. SEAS 8 FT.
.FRI...NW WIND 20 KT. SEAS 8 FT.
.SAT THROUGH SUN...SE WIND 15 KT. SEAS 5 FT.

$$

PKZ173-241215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.WED...W WIND 30 KT. SEAS 12 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 20 KT. SEAS 8 FT.
.THU NIGHT...NW WIND 15 KT. SEAS 7 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 5 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ174-241215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND 25 KT. SEAS 11 FT.
.WED...W WIND 30 KT. SEAS 12 FT.
.WED NIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 25 KT. SEAS 11 FT.
.THU NIGHT...NW WIND 25 KT. SEAS 11 FT.
.FRI...NW WIND 15 KT. SEAS 7 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ175-241215-
SEGUAM ISLAND TO ADAK BERING SIDE-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND INCREASING TO 30 KT. SEAS 11 FT.
.WED...W WIND 30 KT. SEAS 11 FT. PATCHY FOG.
.WED NIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.THU NIGHT...NW WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...VARIABLE WIND 10 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ176-241215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND INCREASING TO 30 KT. SEAS 11 FT.
.WED...W WIND 30 KT. SEAS 12 FT. PATCHY FOG.
.WED NIGHT...SW WIND 30 KT. SEAS 9 FT.
.THU...W WIND 30 KT. SEAS 12 FT.
.THU NIGHT...NW WIND 25 KT. SEAS 11 FT.
.FRI...N WIND 15 KT. SEAS 7 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ177-241215-
ADAK TO KISKA-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND 30 KT. SEAS 11 FT. AREAS OF FOG.
.WED...W WIND 25 KT. SEAS 10 FT. AREAS OF FOG.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT.
.THU...W WIND 30 KT. SEAS 12 FT.
.THU NIGHT...N WIND 15 KT. SEAS 9 FT.
.FRI...N WIND 15 KT. SEAS 6 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 7 FT.

$$

PKZ178-241215-
KISKA TO ATTU-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...W WIND 30 KT. SEAS 11 FT. AREAS OF FOG.
.WED...W WIND 20 KT. SEAS 9 FT. AREAS OF FOG.
.WED NIGHT...SW WIND 25 KT. SEAS 10 FT.
.THU...NW WIND 25 KT. SEAS 10 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 8 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...W WIND 15 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ179-241215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...SW WIND 20 KT. SEAS 8 FT. RAIN AND SNOW SHOWERS.
.WED...W WIND 25 KT. SEAS 10 FT. RAIN AND SNOW SHOWERS.
.WED NIGHT...W WIND 30 KT. SEAS 13 FT.
.THU...W WIND 20 KT. SEAS 10 FT.
.THU NIGHT...W WIND 15 KT. SEAS 6 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ180-241215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...S WIND 20 KT. SEAS 7 FT. RAIN.
.WED...SW WIND 25 KT. SEAS 7 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 9 FT.
.THU...W WIND 25 KT. SEAS 10 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 5 FT.

$$

PKZ181-241215-
NORTH AND WEST OF NUNIVAK ISLAND-
330 PM AKDT TUE MAY 23 2017

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...S WIND 15 KT. SEAS 6 FT.
.WED...SW WIND 20 KT. SEAS 6 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 5 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.

$$

PKZ185-241215-
SAINT MATTHEW ISLAND WATERS-
330 PM AKDT TUE MAY 23 2017

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

.TONIGHT...SW WIND 25 KT. SEAS 10 FT.
.WED...SW WIND 20 KT E OF SAINT MATTHEW ISLAND... NW 25 KT W OF
SAINT MATTHEW ISLAND. SEAS 9 FT.
.WED NIGHT...NW WIND 25 KT. SEAS 8 FT.
.THU AND THU NIGHT...W WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.

$$

326 
FZAK52 PAFC 241143
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
343 AM AKDT WED MAY 24 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.

PKZ199-250045-
343 AM AKDT WED MAY 24 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
BOGOSLOF VOLCANO LOCATED APPROXIMATELY 55 NM WEST OF DUTCH
HARBOR IS CURRENTLY ACTIVE. A 996 MB LOW 190 NM SOUTHWEST OF GAMBELL
WILL MOVE TO 160 NM SOUTH OF GAMBELL AT 1000 MB THIS AFTERNOON
THEN BE ABSORBED BY A DEVELOPING LOW NORTH OF THE BERING STRAIT THU 
MORNING. A 1016 MB LOW 250 NM WEST OF SHEMYA THIS EVENING WILL MOVE 
TO 130 NM NORTHEAST OF ADAK AT 1011 MB THU AFTERNOON AND THEN TO 65 
NM SOUTHEAST OF DUTCH HARBOR AT 1008 MB FRI MORNING.

$$

PKZ150-250045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW WIND 30 KT. SEAS 14 FT. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 25 KT. SEAS 7 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 7 FT.

$$

PKZ155-250045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 25 KT. SEAS 13 FT.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.THU NIGHT...S WIND 25 KT. SEAS 7 FT.
.FRI...N WIND 25 KT. SEAS 8 FT.
.SAT THROUGH SUN...SE WIND 15 KT. SEAS 7 FT.

$$

PKZ160-250045-
BRISTOL BAY-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW WIND 25 KT. SEAS 8 FT.
.TONIGHT...SW WIND 25 KT. SEAS 8 FT. RAIN AND SNOW SHOWERS.
.THU...W WIND 25 KT. SEAS 8 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...SE WIND 15 KT. SEAS 5 FT.
.SUN...E WIND 20 KT. SEAS 5 FT.

$$

PKZ165-250045-
PORT HEIDEN TO CAPE SARICHEF-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 25 KT. SEAS 10 FT.
.THU NIGHT...S WIND 15 KT. SEAS 7 FT.
.FRI...N WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.

$$

PKZ170-250045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 20 KT. SEAS 10 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 7 FT.
.FRI...NW WIND 20 KT. SEAS 5 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ171-250045-
UNALASKA BAY-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W WIND 25 KT. SEAS 4 FT.
.TONIGHT...W WIND 25 KT. SEAS 4 FT. RAIN.
.THU...W WIND 15 KT. SEAS 2 FT. RAIN.
.THU NIGHT...NE WIND 15 KT. SEAS 5 FT.
.FRI...NW WIND 20 KT. SEAS 5 FT.
.SAT...NE WIND 10 KT. SEAS 2 FT.
.SUN...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT.

$$

PKZ172-250045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 25 KT. SEAS 8 FT.
.THU NIGHT...W WIND 25 KT. SEAS 9 FT.
.FRI...NW WIND 25 KT. SEAS 9 FT.
.SAT...NE WIND 15 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ173-250045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 12 FT.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...SW WIND 25 KT. SEAS 8 FT. RAIN.
.THU NIGHT...NW WIND 20 KT. SEAS 8 FT.
.FRI...NW WIND 15 KT. SEAS 6 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ174-250045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.THU...SW WIND 30 KT. SEAS 11 FT. RAIN.
.THU NIGHT...NW WIND 25 KT. SEAS 11 FT.
.FRI...NW WIND 20 KT. SEAS 8 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ175-250045-
SEGUAM ISLAND TO ADAK BERING SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.THU...SW WIND 25 KT. SEAS 7 FT. RAIN.
.THU NIGHT...NW WIND 20 KT. SEAS 7 FT.
.FRI...NW WIND 15 KT. SEAS 5 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 4 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 2 FT.

$$

PKZ176-250045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. 
SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 12 FT.
.THU NIGHT...NW WIND 25 KT. SEAS 11 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 7 FT.
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ177-250045-
ADAK TO KISKA-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 25 KT. SEAS 10 FT.
.TONIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN.
.THU...W WIND 30 KT. SEAS 12 FT.
.THU NIGHT...N WIND 15 KT. SEAS 8 FT.
.FRI...SE WIND 15 KT. SEAS 6 FT.
.SAT...W WIND 15 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ178-250045-
KISKA TO ATTU-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 20 KT. SEAS 8 FT.
.TONIGHT...SW WIND 30 KT. SEAS 10 FT.
.THU...NW WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. 
SEAS 10 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT...W WIND 15 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ179-250045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT. RAIN SHOWERS AND SNOW SHOWERS.
.TONIGHT...W WIND 30 KT. SEAS 13 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.THU NIGHT...W WIND 15 KT. SEAS 6 FT.
.FRI...W WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ180-250045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW WIND 25 KT. SEAS 8 FT.
.TONIGHT...W WIND 30 KT. SEAS 9 FT.
.THU...W WIND 25 KT. SEAS 9 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.

$$

PKZ181-250045-
NORTH AND WEST OF NUNIVAK ISLAND-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...SW WIND 20 KT. SEAS 6 FT.
.TONIGHT...W WIND 20 KT. SEAS 8 FT. FREEZING SPRAY.
.THU...W WIND 20 KT. SEAS 7 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 5 FT.
.FRI...SW WIND 20 KT. SEAS 5 FT.
.SAT...SE WIND 15 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

PKZ185-250045-
SAINT MATTHEW ISLAND WATERS-
343 AM AKDT WED MAY 24 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SW WIND 20 KT E OF SAINT MATTHEW ISLAND... NW 30 KT W OF
SAINT MATTHEW ISLAND. SEAS 8 FT.
.TONIGHT...NW WIND 25 KT. SEAS 8 FT.
.THU...W WIND 20 KT. SEAS 6 FT.
.THU NIGHT...W WIND 20 KT. SEAS 6 FT.
.FRI...SW WIND 25 KT. SEAS 7 FT.
.SAT...SE WIND 25 KT. SEAS 7 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 5 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
434 PM AKDT Sun May 21 2017

.ANALYSIS AND UPPER LEVELS...
A high amplitude pattern is in place with a trough over the
northeast Pacific and downstream ridge along the west coast of
North America. Deep southerly flow has produced an atmospheric
river which is pointed right at southeast Alaska. Meanwhile, the
combination of an upper level low over the western Gulf, a short-
wave moving onshore along the northeast Gulf coast, and a surface
low approaching Prince William Sound is leading to widespread
rain across Southcentral. The available moisture and upward
vertical motion is not quite as impressive as over Southeast
Alaska, so the rain is generally light, but steady. Rain intensity
will increase along the north Gulf coast this evening as the low
reaches Prince William Sound and southerly upslope flow sets in.
There will also be a deformation band on the back side of the
surface low, so there should be a band of heavier rain across the
western Kenai and Cook Inlet.

Meanwhile, weather is much quieter over Southwest Alaska with a
mix of sun and clouds and a few showers. Similar to yesterday, the
combination of day-time warming and a short-wave on the western
side of the upper level low will lead to increased instability in
the afternoon/evening hours. Thus, expect scattered showers and
isolated thunderstorms, especially over inland areas.

Out west, a 140kt+ upper level jet continues to drive a trough and
surface cold front eastward across the Bering Sea and toward the
Southwest Alaska coast. Fairly cool air behind the cold front is
leading to instability off the surface. Thus, winds across the
region are quite gusty in nature. It's a fairly cold rain along
the front with temperatures in the upper 30s to lower 40s.

&&

.MODEL DISCUSSION...
Numerical forecast guidance is in very good agreement with the
significant features over the next few days and forecast
confidence is generally high. The primary forecast challenge
is capturing all of the local detail in a progressive pattern.
Specifically, there will be a lot of fairly strong and gusty
winds over Southcentral and coastal waters over the next few
days. A combination of pattern recognition and hi-res models
will really help hone in on where and how strong these winds
will be.

&&

.AVIATION...
PANC...The primary forecast challenge is determining how low
ceilings drop tonight. There is some weak low level cross-mountain
flow, but it slowly shifts around to south by 06z, so marginal
ceilings are likely. Ceilings will lift during the day Monday as
precip tapers off, but instability will lead to strengthening
southerly winds, both up Cook Inlet and out of Turnagain Arm.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
It's looking like a very cool and wet pattern over the next few
days, with a bit of a break in the steady rain Monday night
through Tuesday night. The upper low over the western Gulf will
open up into a trough and lift northward across Southcentral
tonight, driving the surface low onshore across Prince William
Sound. This will cause low level flow to shift around to southerly
which will enhance rainfall intensity along the north Gulf
coast/Prince William Sound as well as the northern Susitna
Valley/Copper Basin. Rain will begin to gradually taper off across
Southcentral on Monday, lingering longest in the upslope areas
mentioned. In addition to the widespread rain, also expect fairly
widespread gusty southerly winds to develop overnight tonight as
the surface low heads inland and higher pressure builds in behind
it. Low level instability will also lead to stronger winds mixing
down to the surface, so expect strengthening winds during the day
Monday as temperatures begin to warm up a bit.

The upper trough and surface front crossing the Bering Sea will
reach Kodiak Island Monday morning, but will be in the process
of elongating and weakening. Thus, after bringing some rain to
Kodiak Island don't expect more than some showers as the upper
trough crosses Southcentral Monday night through Tuesday, mainly
over inland areas.

More significant rainfall is on the way for mid week as a trough
digs over the north central Pacific and downstream ridge builds
over the Gulf. This will set up another atmospheric river, this
time pointed at the southern mainland of Alaska. Expect rainfall
to move into Southcentral Tuesday night into Wednesday. Strong
low level southerly flow will re-develop resulting in periods
of moderate to heavy rain for much of the region. The one big
exception will be the heart of the Copper River Basin which
will remain dry due to the southerly downslope flow. The surface
pressure gradient will also support gap winds in the usual places
(Turnagain Arm/Knik River Valley/Copper River).

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Showers will continue to develop through the early evening hours
across Southwest Alaska as an upper level trough situated along
the west coast provides just enough upper level support to support
widespread showers. In addition, clearing skies across the Lower
Kuskokwim Valley will allow for some destabilization east of Aniak
and west of Sparrevohn which will likely create isolated
thunderstorms during the later afternoon/evening hours. Today
should be the last day for thunderstorm potential as a rather
impressive pattern change is on the way. Cloud cover will engulf
Southwest Alaska on Monday ahead of an amplifying trough over the
Bering Sea which will help bring period of moderate and
potentially heavy rainfall to the region Tuesday night through
Wednesday. Rainfall amounts around half of an inch will be likely
for most locations across Southwest Alaska with upwards to an inch
likely along upslope and coastal locations.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A frontal boundary will continue to push across the eastern
Bering Sea this evening before dissipating along the west coast of
Alaska. Periods of light to moderate rain will be seen along the
Alaska Peninsula through early Monday morning. Gusty winds along
the back side of the front will be seen across the eastern
Aleutians and Alaska Peninsula with winds gusting upward to 30 to
35 mph at times. The next system to impact the Bering Sea has
already begun to take shape just to the east of Kamchatka. First
off, the upper level trough over the Bering Sea is expected to
amplify as a result of an upper level low pushing off of
Kamchatka. This will result in a surface low tracking across the
western Bering Sea on Monday which will help push a frontal
boundary into the central Bering Sea by Monday night. A second low
pressure system will form just south of Adak early Tuesday
morning which will tap into some very moisture rich air which will
bring periods of moderate to heavy rainfall to much of the
Aleutians on Tuesday before quickly tracking eastward.

&&

.LONG TERM FORECAST (Days 4 through 7)...
An amplifying trough digging through the Bering sea and Aleutian
chain will continue to shift eastward Wednesday morning, with a
blocking ridge building over the Gulf of Alaska slowing the
eastward progression of the trough. This will keep a steady supply
of wet and windy conditions over much of the southern mainland
through the end of the week. Models continue to come into better
agreement with bringing this unseasonably moist airmass (based on
forecasted precipitable water values) to mainland Alaska.

One of the biggest struggles in the extended forecast will be the
timing of when high pressure builds back into the gulf and if/when
showers over the southern Mainland tapper off. Latest model runs
suggest this wet pattern will begin to dissipate during the
Memorial Day weekend, as models remain firm on bringing the ridge
of high pressure over the Northern gulf. However, there still
remains some uncertainty as these models are showing a chance of
some showers making it over the ridge and into the cook inlet
region Sunday. If this ridge builds into the area stronger than
currently progged, there remains some potential to bring warmer
and drier conditions to Southcentral Alaska over the weekend and
into Monday. Given the current model discrepancies, forecast
confidence remains low in a completely warm and dry scenario.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning 174 176.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...SB
SOUTHCENTRAL ALASKA...SB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MC
LONG TERM...PEPE