Small Craft Advisory 406, NWS Anchorage, AK

903 
FZAK52 PAFC 211527 AAA
CWFALU

COASTAL WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
727 AM AKDT SUN MAY 21 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.

PKZ199-220415-
727 AM AKDT SUN MAY 21 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A FRONT THAT EXTENDS THROUGH THE CENTRAL BERING/ALEUTIANS MOVES 
NORTH AND EAST BEFORE DISSIPATING BY MON AFTERNOON. A 990 MB LOW 
TRACKS 400 NM NORTHWEST OF SHEMYA MON MORNING THEN MOVES 360 NM 
N OF SHEMYA AT 997 MB TUE MORNING. AN ASSOCIATED FRONT ENTERS THE 
WESTERN ALEUTIANS MON MORNING THEN MOVES TO THE NORTHERN BERING 
AND THE CENTRAL ALEUTIANS BY TUE MORNING. BY TUESDAY AFTERNOON A 
SECONDARY LOW DEVELOPS OVER THE PRIBILOF ISLANDS AT 1003 MB.

$$

PKZ150-220415-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY TONIGHT AND MONDAY...

.TODAY...W WIND 20 KT. SEAS 6 FT.
.TONIGHT...SW WIND 25 KT. SEAS 6 FT. RAIN.
.MON...W WIND 25 KT. SEAS 8 FT.
.MON NIGHT...W WIND 25 KT. SEAS 9 FT.
.TUE THROUGH WED...SW WIND 30 KT. SEAS 12 FT.
.THU...W WIND 15 KT. SEAS 10 FT.

$$

PKZ155-220415-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...VARIABLE WIND 10 KT BECOMING SW 25 KT IN THE AFTERNOON.
FROM THE SHUMAGIN ISLANDS E, SW WIND 15 KT. SEAS 6 FT. RAIN.
.TONIGHT...SW WIND 30 KT. FROM THE SHUMAGIN ISLANDS E, SW WIND 20
KT
BECOMING W 30 KT AFTER MIDNIGHT. SEAS 9 FT. RAIN.
.MON...W WIND 30 KT. SEAS 9 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 35 KT. SEAS 15 FT.
.WED...SW WIND 30 KT. SEAS 15 FT.
.THU...W WIND 15 KT. SEAS 8 FT.

$$

PKZ160-220415-
BRISTOL BAY-
727 AM AKDT SUN MAY 21 2017

.TODAY...W WIND 15 KT. SEAS 2 FT.
.TONIGHT...SW WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 2 FT.
.MON...W WIND 20 KT. SEAS 6 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 6 FT.
.TUE THROUGH WED...SW WIND 25 KT. SEAS 7 FT.
.THU...W WIND 15 KT. SEAS 4 FT.

$$

PKZ165-220415-
PORT HEIDEN TO CAPE SARICHEF-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...S WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. FROM
PORT MOLLER E...S WIND 15 KT. SEAS 5 FT. PATCHY FOG. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 8 FT.
.MON...W WIND 25 KT. SEAS 9 FT.
.MON NIGHT...S WIND 25 KT. SEAS 9 FT.
.TUE...S WIND 30 KT. SEAS 10 FT.
.WED...SW WIND 25 KT. SEAS 9 FT.
.THU...W WIND 15 KT. SEAS 7 FT.

$$

PKZ170-220415-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...S WIND 30 KT. SEAS 8 FT. RAIN.
.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.MON...S WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 10 FT.
.TUE...SW WIND 35 KT. SEAS 11 FT.
.WED THROUGH THU...W WIND 20 KT. SEAS 9 FT.

$$

PKZ171-220415-
UNALASKA BAY-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...S WIND INCREASING TO 20 KT. SEAS BUILDING TO 3 FT. RAIN.
.TONIGHT...W WIND 25 KT. SEAS 5 FT.
.MON...SW WIND 20 KT. SEAS 4 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 2 FT.
.TUE...SW WIND 25 KT. SEAS 4 FT.
.WED THROUGH THU...W WIND 15 KT. SEAS 2 FT.

$$

PKZ172-220415-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW WIND 30 KT. SEAS 9 FT. RAIN.
.TONIGHT...W WIND 30 KT. SEAS 10 FT.
.MON...SW WIND 25 KT. SEAS 9 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 10 FT.
.TUE...SW WIND 35 KT. SEAS 15 FT.
.WED...W WIND 25 KT. SEAS 12 FT.
.THU...W WIND 25 KT. SEAS 8 FT.

$$

PKZ173-220415-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW WIND 30 KT. SEAS 9 FT.
.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 10 FT.
.TUE...SW WIND 35 KT. SEAS 12 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 10 FT.

$$

PKZ174-220415-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT. RAIN.
.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 35 KT. SEAS 11 FT.
.TUE...SW WIND 35 KT. SEAS 15 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 10 FT.

$$

PKZ175-220415-
SEGUAM ISLAND TO ADAK BERING SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W WIND 30 KT. SEAS 12 FT.
.TONIGHT...W WIND 30 KT. SEAS 12 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 9 FT.
.TUE THROUGH WED...W WIND 25 KT. SEAS 8 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ176-220415-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W WIND 30 KT. SEAS 11 FT.
.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 30 KT. SEAS 10 FT.
.MON NIGHT...S WIND 35 KT. SEAS 13 FT.
.TUE...W WIND 35 KT. SEAS 13 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 10 FT.

$$

PKZ177-220415-
ADAK TO KISKA-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...W WIND 30 KT. SEAS 13 FT.
.TONIGHT...SW WIND 30 KT. SEAS 12 FT.
.MON...SW WIND 30 KT. SEAS 11 FT.
.MON NIGHT...W WIND 20 KT. SEAS 9 FT.
.TUE...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 20 KT. SEAS 9 FT.
.THU...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ178-220415-
KISKA TO ATTU-
727 AM AKDT SUN MAY 21 2017

...GALE WARNING TODAY...

.TODAY...W WIND 35 KT. SEAS 16 FT.
.TONIGHT...SW WIND 30 KT. SEAS 13 FT.
.MON...SW WIND 30 KT. SEAS 12 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 11 FT.
.TUE THROUGH WED...W WIND 20 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 14 FT.

$$

PKZ179-220415-
PRIBILOF ISLANDS NEAR SHORE WATERS-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...S WIND 30 KT BECOMING W 20 KT IN THE AFTERNOON. 
SEAS 7 FT. RAIN.
.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 10 FT.
.TUE THROUGH THU...W WIND 15 KT. SEAS 8 FT.

$$

PKZ180-220415-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...SW WIND 20 KT. SEAS 3 FT. PATCHY FOG.
.TONIGHT...SW WIND 25 KT. SEAS 6 FT.
.MON...W WIND 20 KT. SEAS 7 FT.
.MON NIGHT...S WIND 20 KT. SEAS 7 FT.
.TUE THROUGH WED...SW WIND 25 KT. SEAS 9 FT.
.THU...W WIND 15 KT. SEAS 4 FT.

$$

PKZ181-220415-
NORTH AND WEST OF NUNIVAK ISLAND-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SE WIND 25 KT. SEAS 5 FT. PATCHY FOG.
.TONIGHT...SE WIND 20 KT. SEAS 6 FT.
.MON...SW WIND 20 KT. SEAS 6 FT.
.MON NIGHT...S WIND 20 KT. SEAS 7 FT.
.TUE...SE WIND 20 KT. SEAS 6 FT.
.WED...W WIND 20 KT. SEAS 5 FT.
.THU...SW WIND 15 KT. SEAS 4 FT.

$$

PKZ185-220415-
SAINT MATTHEW ISLAND WATERS-
727 AM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SE WIND 30 KT. SEAS 10 FT. RAIN.
.TONIGHT...S WIND 20 KT. SEAS 9 FT.
.MON...SW WIND 20 KT. SEAS 9 FT.
.MON NIGHT...S WIND 20 KT. SEAS 9 FT.
.TUE...S WIND 15 KT. SEAS 8 FT.
.WED...W WIND 15 KT. SEAS 7 FT.
.THU...SW WIND 20 KT. SEAS 5 FT.

$$

810 
FZAK52 PAFC 212330
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
330 PM AKDT SUN MAY 21 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.

PKZ199-221215-
330 PM AKDT SUN MAY 21 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A FRONT OVER THE EASTERN BERING WILL WEAKEN AS IT MOVES ONSHORE
MON. A FRONT WILL ENTER THE SOUTHWEST BERING TONIGHT AND MOVE TO
THE SOUTHEASTERN BERING BY TUE AFTERNOON. A 989 MB LOW OFF THE 
KAMCHATKA COAST WILL MOVE TO 400 NM NORTH OF SHEMYA AT 996 MB TUE 
AFTERNOON.

$$

PKZ150-221215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...SW WIND 20 KT. SEAS 7 FT. WIDESPREAD RAIN SHOWERS.
.MON...W WIND 25 KT. SEAS 9 FT.
.MON NIGHT...W WIND 25 KT. SEAS 9 FT.
.TUE AND TUE NIGHT...SW WIND 30 KT. SEAS 11 FT.
.WED...SW WIND 30 KT. SEAS 12 FT.
.THU...W WIND 15 KT. SEAS 10 FT.
.FRI...W WIND 15 KT. SEAS 6 FT.

$$

PKZ155-221215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 30 KT. FROM THE SHUMAGIN ISLANDS E, SW WIND 20
KT INCREASING TO 30 KT AFTER MIDNIGHT. SEAS 10 FT. RAIN.
.MON...W WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 10 FT.
.TUE AND TUE NIGHT...SW WIND 35 KT. SEAS 13 FT.
.WED...SW WIND 30 KT. SEAS 12 FT.
.THU...W WIND 15 KT. SEAS 8 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ160-221215-
BRISTOL BAY-
330 PM AKDT SUN MAY 21 2017

.TONIGHT...SW WIND 15 KT BECOMING S AFTER MIDNIGHT. SEAS 2 FT.
.MON...SW WIND 20 KT. SEAS 4 FT BUILDING TO 7 FT IN THE AFTERNOON.
.MON NIGHT...SW WIND 20 KT. SEAS 6 FT.
.TUE AND TUE NIGHT...S WIND 25 KT. SEAS 7 FT.
.WED...SW WIND 20 KT. SEAS 7 FT.
.THU...W WIND 15 KT. SEAS 4 FT.
.FRI...SW WIND 10 KT. SEAS 4 FT.

$$

PKZ165-221215-
PORT HEIDEN TO CAPE SARICHEF-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 8 FT. RAIN.
.MON...W WIND 25 KT. SEAS 9 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 9 FT.
.TUE...S WIND 35 KT. SEAS 10 FT.
.TUE NIGHT...SW WIND 30 KT. SEAS 9 FT.
.WED...SW WIND 20 KT. SEAS 7 FT.
.THU...W WIND 15 KT. SEAS 7 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.

$$

PKZ170-221215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 10 FT.
.MON...SW WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON.
SEAS 10 FT.
.MON NIGHT...S WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...S WIND 35 KT. SEAS 11 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 20 KT. SEAS 9 FT.

$$

PKZ171-221215-
UNALASKA BAY-
330 PM AKDT SUN MAY 21 2017

.TONIGHT...W WIND 20 KT. GUSTS TO 30 KT. SEAS 4 FT.
.MON...W WIND 20 KT. SEAS 3 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 3 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 4 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 3 FT.
.WED THROUGH THU...W WIND 15 KT. SEAS 2 FT.
.FRI...S WIND 15 KT. SEAS 2 FT.

$$

PKZ172-221215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 30 KT. SEAS 10 FT.
.MON...W WIND 25 KT. SEAS 9 FT.
.MON NIGHT...SW WIND 30 KT. SEAS 10 FT.
.TUE...S WIND 35 KT. SEAS 14 FT.
.TUE NIGHT...W WIND 35 KT. SEAS 14 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 9 FT.
.FRI...SW WIND 20 KT. SEAS 10 FT.

$$

PKZ173-221215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 30 KT. SEAS 10 FT. RAIN.
.MON NIGHT...S WIND 30 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 11 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 10 FT.
.FRI...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ174-221215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
330 PM AKDT SUN MAY 21 2017

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 30 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 25 KT BECOMING S 35 KT AFTER MIDNIGHT.
SEAS 12 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 14 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 12 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 9 FT.
.FRI...SW WIND 20 KT. SEAS 11 FT.

$$

PKZ175-221215-
SEGUAM ISLAND TO ADAK BERING SIDE-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 30 KT. SEAS 12 FT.
.MON...S WIND 30 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 9 FT. RAIN.
.TUE...W WIND 20 KT. SEAS 8 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.THU THROUGH FRI...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ176-221215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
330 PM AKDT SUN MAY 21 2017

...GALE WARNING MONDAY NIGHT...

.TONIGHT...W WIND 30 KT. SEAS 11 FT.
.MON...SW WIND 30 KT. SEAS 10 FT. RAIN.
.MON NIGHT...SW WIND 25 KT INCREASING TO 35 KT AFTER 
MIDNIGHT. SEAS 12 FT. RAIN.
.TUE...W WIND 35 KT. SEAS 12 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED THROUGH FRI...SW WIND 25 KT. SEAS 11 FT.

$$

PKZ177-221215-
ADAK TO KISKA-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 12 FT.
.MON...SW WIND 30 KT. SEAS 11 FT.
.MON NIGHT...SW WIND 20 KT. SEAS 9 FT.
.TUE AND TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.THU THROUGH FRI...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ178-221215-
KISKA TO ATTU-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 13 FT.
.MON...SW WIND 30 KT. SEAS 13 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 12 FT.
.TUE AND TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 20 KT. SEAS 8 FT.
.THU...SW WIND 30 KT. SEAS 14 FT.
.FRI...W WIND 20 KT. SEAS 13 FT.

$$

PKZ179-221215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.MON...SW WIND 25 KT. SEAS 10 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 10 FT.
.TUE...SW WIND 15 KT. SEAS 8 FT.
.TUE NIGHT...SW WIND 20 KT. SEAS 8 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 15 KT. SEAS 7 FT.
.FRI...S WIND 20 KT. SEAS 10 FT.

$$

PKZ180-221215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...S WIND 20 KT. SEAS 5 FT.
.MON...W WIND 25 KT. SEAS 7 FT.
.MON NIGHT...SW WIND 25 KT. SEAS 7 FT.
.TUE...S WIND 30 KT. SEAS 8 FT.
.TUE NIGHT...SW WIND 25 KT. SEAS 7 FT.
.WED...SW WIND 20 KT. SEAS 7 FT.
.THU...W WIND 15 KT. SEAS 4 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.

$$

PKZ181-221215-
NORTH AND WEST OF NUNIVAK ISLAND-
330 PM AKDT SUN MAY 21 2017

.TONIGHT...SE WIND 20 KT. SEAS 6 FT.
.MON...SW WIND 15 KT. SEAS 6 FT.
.MON NIGHT...S WIND 20 KT. SEAS 7 FT.
.TUE...S WIND 15 KT. SEAS 6 FT.
.TUE NIGHT...W WIND 15 KT. SEAS 6 FT.
.WED THROUGH THU...SW WIND 15 KT. SEAS 5 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.

$$

PKZ185-221215-
SAINT MATTHEW ISLAND WATERS-
330 PM AKDT SUN MAY 21 2017

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S WIND 20 KT. SEAS 9 FT.
.MON...S WIND 20 KT. SEAS 9 FT.
.MON NIGHT...S WIND 20 KT. SEAS 8 FT.
.TUE...S WIND 20 KT. SEAS 9 FT.
.TUE NIGHT...S WIND 15 KT. SEAS 8 FT.
.WED...W WIND 15 KT. SEAS 7 FT.
.THU...SW WIND 20 KT. SEAS 5 FT.
.FRI...SE WIND 15 KT. SEAS 8 FT.

$$

959 
FZAK52 PAFC 221142
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
342 AM 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.

PKZ199-230045-
342 AM 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 FRONT OVER THE EASTERN BERING WILL 
WEAKEN AS IT MOVES ONSHORE TODAY. A FRONT IN THE SOUTHWEST BERING 
WILL MOVE TO THE SOUTHEASTERN BERING BY TUE AFTERNOON. A 989 MB LOW 
OFF THE KAMCHATKA COAST WILL MOVE TO 350 NM NORTHWEST OF ST PAUL AT 
994 MB TUE AFTERNOON THEN TO 215 NM SOUTHWEST OF GAMBELL BY WED 
MORNING.

$$

PKZ150-230045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W WIND 25 KT. SEAS 8 FT.
.TONIGHT...W WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 30 KT. SEAS 10 FT.
.TUE NIGHT...SW WIND 30 KT. SEAS 13 FT.
.WED...SW WIND 30 KT. SEAS 13 FT.
.THU...W WIND 15 KT. SEAS 8 FT.
.FRI...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ155-230045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
342 AM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TODAY...W WIND 25 KT. SEAS 10 FT.
.TONIGHT...SW WIND 25 KT. SEAS 9 FT.
.TUE...SW WIND 35 KT. SEAS 12 FT. RAIN.
.TUE NIGHT...SW WIND 35 KT. SEAS 13 FT.
.WED...W WIND 30 KT. SEAS 12 FT.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ160-230045-
BRISTOL BAY-
342 AM AKDT MON MAY 22 2017

.TODAY...SW WIND INCREASING TO 20 KT. SEAS BUILDING TO 6 FT.
.TONIGHT...W WIND 20 KT. SEAS 6 FT.
.TUE...S WIND 20 KT. SEAS 6 FT. RAIN.
.TUE NIGHT...S WIND 25 KT. SEAS 7 FT.
.WED THROUGH THU...SW WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.

$$

PKZ165-230045-
PORT HEIDEN TO CAPE SARICHEF-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W WIND 25 KT. SEAS 8 FT.
.TONIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN.
.TUE...S WIND 30 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...SW WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 10 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.

$$

PKZ170-230045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT.
.TONIGHT...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TUE...S WIND 30 KT. SEAS 9 FT. RAIN.
.TUE NIGHT...W WIND 25 KT. SEAS 8 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 10 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.

$$

PKZ171-230045-
UNALASKA BAY-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...W WIND 20 KT. SEAS 3 FT.
.TONIGHT...SW WIND 20 KT. SEAS 3 FT. RAIN.
.TUE...S WIND 25 KT. SEAS 3 FT. RAIN.
.TUE NIGHT...W WIND 15 KT. SEAS 2 FT.
.WED THROUGH THU...W WIND 20 KT. SEAS 3 FT.
.FRI...S WIND 15 KT. SEAS 2 FT.

$$

PKZ172-230045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
342 AM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TODAY...W WIND 25 KT. SEAS 9 FT.
.TONIGHT...SW WIND 30 KT. SEAS 10 FT. RAIN.
.TUE...SW WIND 35 KT. SEAS 13 FT. RAIN.
.TUE NIGHT...W WIND 30 KT. SEAS 13 FT.
.WED THROUGH THU...W WIND 25 KT. SEAS 9 FT.
.FRI...S WIND 25 KT. SEAS 11 FT.

$$

PKZ173-230045-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT. RAIN.
.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 10 FT.
.WED...W WIND 25 KT. SEAS 10 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 25 KT. SEAS 7 FT.

$$

PKZ174-230045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
342 AM AKDT MON MAY 22 2017

...GALE WARNING TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT.
.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.
.THU...W WIND 20 KT. SEAS 8 FT.
.FRI...SW WIND 25 KT. SEAS 13 FT.

$$

PKZ175-230045-
SEGUAM ISLAND TO ADAK BERING SIDE-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT.
.TONIGHT...SW WIND 20 KT. SEAS 9 FT. RAIN.
.TUE...W WIND 25 KT. SEAS 8 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 9 FT.
.WED THROUGH FRI...SW WIND 25 KT. SEAS 9 FT.

$$

PKZ176-230045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 10 FT. RAIN.
.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...W WIND 25 KT. SEAS 10 FT.
.THU...SW WIND 30 KT. SEAS 8 FT.
.FRI...SW WIND 30 KT. SEAS 14 FT.

$$

PKZ177-230045-
ADAK TO KISKA-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 30 KT. SEAS 12 FT.
.TONIGHT...SW WIND 25 KT. SEAS 10 FT.
.TUE...W WIND 25 KT. SEAS 9 FT.
.TUE NIGHT...W WIND 25 KT. SEAS 10 FT.
.WED...W WIND 25 KT. SEAS 9 FT.
.THU THROUGH FRI...W WIND 30 KT. SEAS 14 FT.

$$

PKZ178-230045-
KISKA TO ATTU-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W WIND 30 KT. SEAS 13 FT.
.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 25 KT. SEAS 9 FT.
.THU...SW WIND 30 KT. SEAS 12 FT.
.FRI...W WIND 25 KT. SEAS 12 FT.

$$

PKZ179-230045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 25 KT. SEAS 10 FT. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 11 FT.
.TUE...S WIND 15 KT. SEAS 9 FT.
.TUE NIGHT...SW WIND 25 KT. SEAS 9 FT.
.WED...W WIND 25 KT. SEAS 11 FT.
.THU...W WIND 20 KT. SEAS 9 FT.
.FRI...S WIND 20 KT. SEAS 6 FT.

$$

PKZ180-230045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...W WIND 20 KT. SEAS 6 FT.
.TONIGHT...S WIND 25 KT. SEAS 7 FT.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.TUE NIGHT...SW WIND 25 KT. SEAS 7 FT.
.WED THROUGH THU...W WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.

$$

PKZ181-230045-
NORTH AND WEST OF NUNIVAK ISLAND-
342 AM AKDT MON MAY 22 2017

.TODAY...SW WIND 15 KT. SEAS 6 FT.
.TONIGHT...S WIND 20 KT. SEAS 7 FT.
.TUE...SW WIND 20 KT. SEAS 7 FT.
.TUE NIGHT...SW WIND 15 KT. SEAS 6 FT.
.WED THROUGH THU...W WIND 20 KT. SEAS 7 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.

$$

PKZ185-230045-
SAINT MATTHEW ISLAND WATERS-
342 AM AKDT MON MAY 22 2017

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW WIND 15 KT. SEAS 8 FT.
.TONIGHT...S WIND 20 KT. SEAS 9 FT.
.TUE...S WIND 20 KT. SEAS 10 FT.
.TUE NIGHT...S WIND 20 KT. SEAS 9 FT.
.WED...NW WIND 20 KT. SEAS 7 FT.
.THU...SW WIND 20 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 5 FT.

$$

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.

$$

Southcentral and Southwest Alaska Forecast Discussion...UPDATED
National Weather Service Anchorage AK
527 PM AKDT Sat May 20 2017

.ANALYSIS AND UPPER LEVELS...
Water vapor imagery shows a very dynamic and amplified pattern.
A broad trough and closed upper level low are centered over the
north central Pacific (due south of the Alaska Peninsula) with an
amplifying ridge downstream over the far east Pacific. This has
led to development of an atmospheric river, with moisture
streaming northward to the eastern Gulf and Southeast Alaska. A
low has formed at the surface and is being led into the eastern
Gulf by a warm front. This will be the major weather maker for
Southcentral tonight through Monday.

Meanwhile, an elongated upper low is centered along Shelikof Strait
with a trough rotating northwestward across Southcentral leading
to fairly extensive cloud cover and showers. With abundant sunshine
over interior Southwest Alaska to start the day, it appears very
favorable for development of showers (and perhaps a few thunderstorms)
this afternoon and evening as the upper trough continues westward
across the Alaska Range.

Out west, benign weather dominates much of the Bering Sea and
Aleutians. This is about to change; a strong upper level jet
streak is driving a deep upper trough eastward across the western
Bering Sea, with a sweeping cold front at the surface. Expect
steady rain and strong winds as this continues eastward.

&&

.MODEL DISCUSSION...
Looking at the 12z model guidance, the NAM remains an outlier with
a faster and farther east track of the low crossing the Gulf.
Prefer a consensus of the other solutions which track the low to
near Cape Cleare Sunday night, then inland Monday. There has not
been great run-to-run consistency with the timing and track of
this low, but based on good agreement with all but the NAM and
the fact that we are so close in time, confidence is increasing
and forecast will be adjusted to reflect the latest solution.
Elsewhere, models are in good agreement with major features and
forecast confidence is high.

&&

.AVIATION...
PANC...Expect Turnagain winds this afternoon, but they should cut
off pretty quickly early this evening as pressure gradients
slacken ahead of the surface low crossing the Gulf. Ceilings will
also improve this evening as the mean flow shifts around to
northerly. Ceilings will then quickly lower as steady rain moves
in Sunday, with a possibility of dropping to MVFR Sunday
afternoon or evening as the low levels continue to moisten under
weak flow and falling rain.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
After a partial break in the clouds this evening, widespread
rains will return to the region for Sunday and Monday. Before this
rain begins, showers and gusty winds through Turnagain Arm/west
Anchorage, as well as the Knik and Copper River valleys will
continue through the early evening hours as the remnants of the
shortwave moves overhead. Afterwards, widespread rain will begin
along the north Gulf coast late tonight and then spread westward
into most of Southcentral by Sunday afternoon. This rain will
cause afternoon/evening gap winds to be much weaker than recent
days, and instead winds are expected to increase through these
areas late Sunday night where they will persist into Monday as the
surface low makes landfall. Confidence in the timing of these
winds improved significantly today, especially as the 18z GFS and
NAM came into much better agreement in the timing of the gulf low.
Conditions throughout the area will then begin to improve from
south to north on Monday afternoon, providing a brief break in the
rain to most areas that should persist into Tuesday.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
An upper level wave extending northward from an upper level low
along the Alaska Range is moving westward across the mountains
towards the Lower Kuskokwim Valley and interior Bristol Bay this
afternoon. As the wave becomes and additional source of lift for
an already moist, unstable atmosphere above that region, isolated
thunderstorms will be possible this afternoon. As the sun sets,
the activity will wane and partly cloudy to mainly clear skies
will return to Southwest Alaska tonight.

A similar scenario plays out on Sunday though this time the wave
will have moved to near the Kilbucks, where upon meeting the
approaching upper level signature of a front pushing eastward from
off the Bering, the two features colliding will be the source of
lift for the isolated thunderstorms on Sunday afternoon and
evening. Thus it is expected that any isolated thunderstorms will
be a bit further west on Sunday across the lower Kuskokwim Valley,
but in many of the same areas of Bristol Bay due to the front
hanging up the upper level wave further east across that region.
Slightly warmer air over the area, especially interior sections of
Southwest Alaska, will allow high temperatures to return to the
60s Sunday afternoon.

Then on Sunday night into Monday, the aforementioned Bering front
moves into Southwest Alaska from coast to interior, bringing some
rainfall to nearly all areas of Southwest Alaska as it passes
through. The front will also reinforce the cool air already in
place, with no sign of summer-like weather anywhere in sight.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A front moving across the central Bering this afternoon will
continue to press eastward until making landfall in Southwest
Alaska Sunday night. Any areas dealing with the usual fog and
stratus across the eastern Bering will see that kind of weather
end with the frontal passage. Another strong wave of energy will
bring gale force winds to the western Bering Sunday afternoon, but
will be unable to keep favorable upper level atmospheric
conditions with it long enough to maintain itself as it tries to
move eastward and will subsequently die out over the central
Bering on Monday. The aftermath of this second wave will be a
period of solid south to southwest winds over nearly all of the
Bering by Monday afternoon. Warmer air may sneak into the
Aleutians Monday afternoon, but it will be very short-lived as
most of that air mass gets shunted to the east and a much colder
air mass dives into the Bering next week.

&&

.LONG TERM FORECAST (Days 3 through 7)...
An amplifying trough over the Bering Sea will bring a wet and
windy period of weather to Southwest Alaska starting late Tuesday
morning. Models have been slowly coming into better agreement
bringing an unseasonably moist airmass (based on progged PWAT
values) to mainland Alaska. Very impressive jet dynamics along the
west side of the trough will act as a lifting mechanism which
will create some very favorable rain processes. While rainfall
amounts vary from model to model, it looks quite likely that
coastal locations of Southwest Alaska could see over an inch of
rain while inland locations could see a quarter of an inch to
three quarters of an inch.

One of the biggest struggles in the extended forecast is just how
far east the rainfall makes it. Latest model runs suggest a
further eastward track which would allow Southcentral Alaska to be
impacted by the southwesterly flow aloft. This would allow
rainfall to begin possibly as early as Wednesday morning and
persist through Friday. However, it appears that this wet pattern
will begin to dissipate during the Memorial Day weekend, as models
are now in quite good agreement with bringing a ridge of high
pressure over the Northern gulf from Pacific Northwest coast.
This would potentially bring warmer and drier conditions to
Southcentral Alaska over the weekend and into Monday. The big
question is: will the rain end on Saturday or on Sunday? Stay
tuned.

&&

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

&&

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