Small Craft Advisory 392, NWS Anchorage, AK

701 
FZAK52 PAFC 170406 CCA
CWFALU

COASTAL WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
806 PM AKDT TUE MAY 16 2017

UPDATE TO THE SYNOPSIS

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.

PKZ199-171230-
806 PM AKDT TUE MAY 16 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
CLEVELAND VOLCANO LOCATED 39 NM W OF NIKOLSKI IS CURRENTLY ACTIVE.

A 991 MB LOW CENTERED 110 NM N OF NIKOLSKI WILL MOVE TO 90 NM 
SOUTH OF CAPE SARICHEF AT 996 MB WED AFTERNOON BEFORE DISSIPATING 
THU AFTERNOON. HIGH PRESSURE WILL REMAIN OVER THE WESTERN BERING 
THROUGH THU AFTERNOON.

$$

PKZ150-171230-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...S WIND 20 KT. SEAS 10 FT.
.WED...S WIND 20 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 9 FT.
.THU AND THU NIGHT...SE WIND 15 KT. SEAS 7 FT.
.FRI...SE WIND 15 KT. SEAS 8 FT.
.SAT THROUGH SUN...E WIND 25 KT. SEAS 13 FT.

$$

PKZ155-171230-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...S WIND 25 KT. SEAS 12 FT. RAIN SHOWERS.
.WED...S WIND 25 KT. SEAS 12 FT.
.WED NIGHT...SE WIND 15 KT. SEAS 9 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS 8 FT.
.FRI THROUGH SUN...NE WIND 20 KT. SEAS 11 FT.

$$

PKZ160-171230-
BRISTOL BAY-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...E WIND 20 KT. SEAS 4 FT. PATCHY FOG.
.WED...E WIND 25 KT. SEAS 4 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 3 FT.
.THU...E WIND 20 KT. SEAS 3 FT.
.THU NIGHT...SE WIND 10 KT. SEAS 2 FT.
.FRI...E WIND 10 KT. SEAS 3 FT.
.SAT...E WIND 15 KT. SEAS 4 FT.
.SUN...E WIND 20 KT. SEAS 3 FT.

$$

PKZ165-171230-
PORT HEIDEN TO CAPE SARICHEF-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...E WIND 20 KT. SEAS 4 FT. PATCHY FOG.
.WED...E WIND 20 KT. SEAS 4 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 4 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 20 KT. SEAS 6 FT.

$$

PKZ170-171230-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...VARIABLE WIND 10 KT BECOMING N 15 KT AFTER MIDNIGHT.
SEAS 5 FT.
.WED...NE WIND 20 KT. SEAS 5 FT.
.WED NIGHT...NE WIND 20 KT. SEAS 5 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 5 FT.
.SUN...NE WIND 15 KT. SEAS 7 FT.

$$

PKZ171-171230-
UNALASKA BAY-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. RAIN SHOWERS.
.WED...N WIND 10 KT. SEAS 3 FT.
.WED NIGHT...NE WIND 10 KT. SEAS 3 FT.
.THU AND THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 2 FT.
.SUN...NE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-171230-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...W WIND 20 KT. SEAS 11 FT. RAIN SHOWERS.
.WED...NW WIND 20 KT. SEAS 10 FT.
.WED NIGHT...NE WIND 15 KT. SEAS 8 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS 7 FT.
.FRI...E WIND 25 KT. SEAS 7 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 12 FT.

$$

PKZ173-171230-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W WIND 25 KT BECOMING NW 15 KT AFTER MIDNIGHT. SEAS 8 FT.
PATCHY FOG.
.WED...N WIND 15 KT. SEAS 6 FT.
.WED NIGHT...N WIND 20 KT. SEAS 6 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...E WIND 15 KT. SEAS 7 FT.

$$

PKZ174-171230-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...W WIND 30 KT. SEAS 12 FT. RAIN SHOWERS.
.WED...NW WIND 20 KT. SEAS 9 FT.
.WED NIGHT...N WIND 20 KT. SEAS 7 FT.
.THU...NE WIND 15 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 25 KT. SEAS 6 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...N WIND 15 KT. SEAS 12 FT.

$$

PKZ175-171230-
SEGUAM ISLAND TO ADAK BERING SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 25 KT. SEAS 8 FT.
.WED...N WIND 20 KT. SEAS 7 FT.
.WED NIGHT...N WIND 15 KT. SEAS 7 FT.
.THU AND THU NIGHT...NE WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ176-171230-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...W WIND 35 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS 12 FT.
.WED...NW WIND 20 KT. SEAS 7 FT.
.WED NIGHT...N WIND 15 KT. SEAS 6 FT.
.THU...NE WIND 15 KT. SEAS 4 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 4 FT.
.FRI THROUGH SAT...N WIND 20 KT. SEAS 8 FT.
.SUN...W WIND 15 KT. SEAS 9 FT.

$$

PKZ177-171230-
ADAK TO KISKA-
806 PM AKDT TUE MAY 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 40 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
11 FT.
.WED...N WIND 20 KT. SEAS 8 FT.
.WED NIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 20 KT. SEAS 6 FT.
.SAT...NE WIND 15 KT. SEAS 6 FT.
.SUN...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ178-171230-
KISKA TO ATTU-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW WIND 30 KT. SEAS 10 FT. PATCHY FOG.
.WED...N WIND 20 KT. SEAS 8 FT. PATCHY FOG.
.WED NIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU AND THU NIGHT...NE WIND 15 KT. SEAS 5 FT.
.FRI...E WIND 15 KT. SEAS 6 FT.
.SAT...S WIND 25 KT. SEAS 6 FT.
.SUN...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ179-171230-
PRIBILOF ISLANDS NEAR SHORE WATERS-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.WED...NE WIND 20 KT. SEAS 5 FT.
.WED NIGHT...N WIND 20 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ180-171230-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...E WIND 20 KT. SEAS 6 FT. PATCHY FOG.
.WED...E WIND 20 KT. SEAS 4 FT.
.WED NIGHT...E WIND 15 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 10 KT. SEAS 3 FT.
.FRI...NE WIND 10 KT. SEAS 4 FT.
.SAT...E WIND 15 KT. SEAS 5 FT.
.SUN...E WIND 20 KT. SEAS 5 FT.

$$

PKZ181-171230-
NORTH AND WEST OF NUNIVAK ISLAND-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

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

$$

PKZ185-171230-
SAINT MATTHEW ISLAND WATERS-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE WIND 30 KT BECOMING N 20 KT AFTER MIDNIGHT. SEAS 8
FT.
.WED...N WIND 20 KT. SEAS 6 FT. PATCHY FOG.
.WED NIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 4 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 20 KT. SEAS 4 FT.

$$

690 
FZAK52 PAFC 170809 CCB
CWFALU

COASTAL WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
806 PM AKDT TUE MAY 16 2017

UPDATE TO THE SYNOPSIS

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.

PKZ199-171230-
806 PM AKDT TUE MAY 16 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
CLEVELAND VOLCANO LOCATED 39 NM W OF NIKOLSKI IS CURRENTLY ACTIVE.

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

A 991 MB LOW CENTERED 110 NM N OF NIKOLSKI WILL MOVE TO 90 NM 
SOUTH OF CAPE SARICHEF AT 996 MB WED AFTERNOON BEFORE DISSIPATING 
THU AFTERNOON. HIGH PRESSURE WILL REMAIN OVER THE WESTERN BERING 
THROUGH THU AFTERNOON.

$$

PKZ150-171230-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...S WIND 20 KT. SEAS 10 FT.
.WED...S WIND 20 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 9 FT.
.THU AND THU NIGHT...SE WIND 15 KT. SEAS 7 FT.
.FRI...SE WIND 15 KT. SEAS 8 FT.
.SAT THROUGH SUN...E WIND 25 KT. SEAS 13 FT.

$$

PKZ155-171230-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...S WIND 25 KT. SEAS 12 FT. RAIN SHOWERS.
.WED...S WIND 25 KT. SEAS 12 FT.
.WED NIGHT...SE WIND 15 KT. SEAS 9 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS 8 FT.
.FRI THROUGH SUN...NE WIND 20 KT. SEAS 11 FT.

$$

PKZ160-171230-
BRISTOL BAY-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY WEDNESDAY...

.TONIGHT...E WIND 20 KT. SEAS 4 FT. PATCHY FOG.
.WED...E WIND 25 KT. SEAS 4 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 3 FT.
.THU...E WIND 20 KT. SEAS 3 FT.
.THU NIGHT...SE WIND 10 KT. SEAS 2 FT.
.FRI...E WIND 10 KT. SEAS 3 FT.
.SAT...E WIND 15 KT. SEAS 4 FT.
.SUN...E WIND 20 KT. SEAS 3 FT.

$$

PKZ165-171230-
PORT HEIDEN TO CAPE SARICHEF-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...E WIND 20 KT. SEAS 4 FT. PATCHY FOG.
.WED...E WIND 20 KT. SEAS 4 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 4 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 20 KT. SEAS 6 FT.

$$

PKZ170-171230-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...VARIABLE WIND 10 KT BECOMING N 15 KT AFTER MIDNIGHT.
SEAS 5 FT.
.WED...NE WIND 20 KT. SEAS 5 FT.
.WED NIGHT...NE WIND 20 KT. SEAS 5 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 5 FT.
.SUN...NE WIND 15 KT. SEAS 7 FT.

$$

PKZ171-171230-
UNALASKA BAY-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. RAIN SHOWERS.
.WED...N WIND 10 KT. SEAS 3 FT.
.WED NIGHT...NE WIND 10 KT. SEAS 3 FT.
.THU AND THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 2 FT.
.SUN...NE WIND 10 KT. SEAS 2 FT.

$$

PKZ172-171230-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

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

.TONIGHT...W WIND 20 KT. SEAS 11 FT. RAIN SHOWERS.
.WED...NW WIND 20 KT. SEAS 10 FT.
.WED NIGHT...NE WIND 15 KT. SEAS 8 FT.
.THU AND THU NIGHT...E WIND 20 KT. SEAS 7 FT.
.FRI...E WIND 25 KT. SEAS 7 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 12 FT.

$$

PKZ173-171230-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W WIND 25 KT BECOMING NW 15 KT AFTER MIDNIGHT. SEAS 8 FT.
PATCHY FOG.
.WED...N WIND 15 KT. SEAS 6 FT.
.WED NIGHT...N WIND 20 KT. SEAS 6 FT.
.THU AND THU NIGHT...E WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...E WIND 15 KT. SEAS 7 FT.

$$

PKZ174-171230-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...W WIND 30 KT. SEAS 12 FT. RAIN SHOWERS.
.WED...NW WIND 20 KT. SEAS 9 FT.
.WED NIGHT...N WIND 20 KT. SEAS 7 FT.
.THU...NE WIND 15 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 25 KT. SEAS 6 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...N WIND 15 KT. SEAS 12 FT.

$$

PKZ175-171230-
SEGUAM ISLAND TO ADAK BERING SIDE-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 25 KT. SEAS 8 FT.
.WED...N WIND 20 KT. SEAS 7 FT.
.WED NIGHT...N WIND 15 KT. SEAS 7 FT.
.THU AND THU NIGHT...NE WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 6 FT.

$$

PKZ176-171230-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
806 PM AKDT TUE MAY 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...W WIND 35 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS 12 
FT.
.WED...NW WIND 20 KT. SEAS 7 FT.
.WED NIGHT...N WIND 15 KT. SEAS 6 FT.
.THU...NE WIND 15 KT. SEAS 4 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 4 FT.
.FRI THROUGH SAT...N WIND 20 KT. SEAS 8 FT.
.SUN...W WIND 15 KT. SEAS 9 FT.

$$

PKZ177-171230-
ADAK TO KISKA-
806 PM AKDT TUE MAY 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 40 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
11 FT.
.WED...N WIND 20 KT. SEAS 8 FT.
.WED NIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT.
.THU NIGHT...NE WIND 20 KT. SEAS 5 FT.
.FRI...NE WIND 20 KT. SEAS 6 FT.
.SAT...NE WIND 15 KT. SEAS 6 FT.
.SUN...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ178-171230-
KISKA TO ATTU-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...NW WIND 30 KT. SEAS 10 FT. PATCHY FOG.
.WED...N WIND 20 KT. SEAS 8 FT. PATCHY FOG.
.WED NIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU AND THU NIGHT...NE WIND 15 KT. SEAS 5 FT.
.FRI...E WIND 15 KT. SEAS 6 FT.
.SAT...S WIND 25 KT. SEAS 6 FT.
.SUN...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ179-171230-
PRIBILOF ISLANDS NEAR SHORE WATERS-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.WED...NE WIND 20 KT. SEAS 5 FT.
.WED NIGHT...N WIND 20 KT. SEAS 5 FT.
.THU...VARIABLE WIND 10 KT. SEAS 4 FT.
.THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ180-171230-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
806 PM AKDT TUE MAY 16 2017

.TONIGHT...E WIND 20 KT. SEAS 6 FT. PATCHY FOG.
.WED...E WIND 20 KT. SEAS 4 FT.
.WED NIGHT...E WIND 15 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 10 KT. SEAS 3 FT.
.FRI...NE WIND 10 KT. SEAS 4 FT.
.SAT...E WIND 15 KT. SEAS 5 FT.
.SUN...E WIND 20 KT. SEAS 5 FT.

$$

PKZ181-171230-
NORTH AND WEST OF NUNIVAK ISLAND-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

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

$$

PKZ185-171230-
SAINT MATTHEW ISLAND WATERS-
806 PM AKDT TUE MAY 16 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE WIND 30 KT BECOMING N 20 KT AFTER MIDNIGHT. SEAS 8
FT.
.WED...N WIND 20 KT. SEAS 6 FT. PATCHY FOG.
.WED NIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 4 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 4 FT.
.SAT THROUGH SUN...E WIND 20 KT. SEAS 4 FT.

$$

308 
FZAK52 PAFC 171151
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
351 AM AKDT WED MAY 17 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.

PKZ199-180115-
351 AM AKDT WED MAY 17 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
CLEVELAND VOLCANO LOCATED 39 NM W OF NIKOLSKI IS CURRENTLY ACTIVE.

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

A BROAD 995 MB LOW CENTERED 30 NM E OF DUTCH HARBOR MOVES 260 NM
SOUTH OF DUTCH HARBOR AT 999 MB THU MORNING BEFORE DISSIPATING BY
THU AFTERNOON. HIGH PRESSURE REMAINS OVER THE WESTERN BERING 
THROUGH FRI AFTERNOON.



$$

PKZ150-180115-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S WIND 20 KT. SEAS 9 FT.
.TONIGHT...SE WIND 20 KT. SEAS 9 FT.
.THU...SE WIND 15 KT. SEAS 7 FT.
.THU NIGHT...SE WIND 15 KT. SEAS 6 FT.
.FRI...SE WIND 15 KT. SEAS 6 FT.
.SAT THROUGH SUN...E WIND 25 KT. SEAS 13 FT.

$$

PKZ155-180115-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...VARIABLE WIND 10 KT BECOMING S 25 KT IN THE AFTERNOON. SEAS
11 FT.
.TONIGHT...SE WIND 15 KT. SEAS 9 FT.
.THU...E WIND 20 KT. SEAS 8 FT.
.THU NIGHT...E WIND 20 KT. SEAS 7 FT.
.FRI...E WIND 20 KT. SEAS 7 FT.
.SAT...E WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 12 FT.

$$

PKZ160-180115-
BRISTOL BAY-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E WIND 25 KT. SEAS 4 FT.
.TONIGHT...SE WIND 20 KT. SEAS 3 FT.
.THU...E WIND 20 KT. SEAS 3 FT.
.THU NIGHT...SE WIND 10 KT. SEAS 2 FT.
.FRI...E WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.

$$

PKZ165-180115-
PORT HEIDEN TO CAPE SARICHEF-
351 AM AKDT WED MAY 17 2017

.TODAY...E WIND 20 KT. SEAS 4 FT.
.TONIGHT...SE WIND 20 KT. SEAS 4 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI THROUGH SUN...NE WIND 15 KT. SEAS 5 FT.

$$

PKZ170-180115-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
351 AM AKDT WED MAY 17 2017

.TODAY...NE WIND 20 KT. SEAS 6 FT.
.TONIGHT...NE WIND 20 KT. SEAS 4 FT.
.THU...E WIND 15 KT. SEAS 5 FT.
.THU NIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 7 FT.

$$

PKZ171-180115-
UNALASKA BAY-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 10 KT. SEAS 3 FT. RAIN SHOWERS.
.TONIGHT...NE WIND 10 KT. SEAS 3 FT.
.THU...SE WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 3 FT.
.SUN...N WIND 10 KT. SEAS 3 FT.

$$

PKZ172-180115-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW WIND 20 KT. SEAS 10 FT. RAIN SHOWERS.
.TONIGHT...NE WIND 15 KT. SEAS 8 FT.
.THU...E WIND 20 KT. SEAS 7 FT.
.THU NIGHT...E WIND 20 KT. SEAS 7 FT.
.FRI THROUGH SAT...NE WIND 25 KT. SEAS 11 FT.
.SUN...N WIND 20 KT. SEAS 12 FT.

$$

PKZ173-180115-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 15 KT. SEAS 6 FT.
.TONIGHT...N WIND 20 KT. SEAS 6 FT.
.THU...N WIND 15 KT. SEAS 6 FT.
.THU NIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 20 KT. SEAS 7 FT.
.SUN...S WIND 15 KT. SEAS 7 FT.

$$

PKZ174-180115-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW WIND 20 KT. SEAS 9 FT. RAIN SHOWERS.
.TONIGHT...N WIND 20 KT. SEAS 7 FT.
.THU...N WIND 15 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI THROUGH SAT...N WIND 25 KT. SEAS 12 FT.
.SUN...NW WIND 15 KT. SEAS 12 FT.

$$

PKZ175-180115-
SEGUAM ISLAND TO ADAK BERING SIDE-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 20 KT. SEAS 7 FT.
.TONIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 15 KT. SEAS 4 FT.
.FRI THROUGH SAT...NE WIND 15 KT. SEAS 5 FT.
.SUN...SW WIND 15 KT. SEAS 6 FT.

$$

PKZ176-180115-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
351 AM AKDT WED MAY 17 2017

.TODAY...NW WIND 20 KT. SEAS 7 FT.
.TONIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 20 KT. SEAS 4 FT.
.FRI...NE WIND 25 KT. SEAS 8 FT.
.SAT...NW WIND 20 KT. SEAS 9 FT.
.SUN...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ177-180115-
ADAK TO KISKA-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 20 KT. SEAS 7 FT. PATCHY FOG.
.TONIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 20 KT. SEAS 5 FT.
.FRI...N WIND 20 KT. SEAS 6 FT.
.SAT THROUGH SUN...SW WIND 20 KT. SEAS 7 FT.

$$

PKZ178-180115-
KISKA TO ATTU-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 20 KT. SEAS 7 FT. PATCHY FOG.
.TONIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 15 KT. SEAS 5 FT.
.FRI...SE WIND 25 KT. SEAS 6 FT.
.SAT...SW WIND 25 KT. SEAS 6 FT.
.SUN...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ179-180115-
PRIBILOF ISLANDS NEAR SHORE WATERS-
351 AM AKDT WED MAY 17 2017

.TODAY...NE WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.TONIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT. PATCHY FOG.
.THU NIGHT...E WIND 15 KT. SEAS 3 FT.
.FRI THROUGH SAT...E WIND 15 KT. SEAS 3 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ180-180115-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
351 AM AKDT WED MAY 17 2017

.TODAY...E WIND 20 KT. SEAS 4 FT.
.TONIGHT...E WIND 15 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 10 KT. SEAS 2 FT.
.FRI...NE WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.

$$

PKZ181-180115-
NORTH AND WEST OF NUNIVAK ISLAND-
351 AM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY TODAY...

.TODAY...VARIABLE WIND 10 KT BECOMING N 25 KT LATE MORNING. SEAS 5 FT.
.TONIGHT...NE WIND 20 KT. SEAS 4 FT.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ185-180115-
SAINT MATTHEW ISLAND WATERS-
351 AM AKDT WED MAY 17 2017

.TODAY...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.TONIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 3 FT. PATCHY FOG.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 2 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 3 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 4 FT.

$$

604 
FZAK52 PAFC 172313
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
313 PM AKDT WED MAY 17 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.

PKZ199-181215-
313 PM AKDT WED MAY 17 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 BROAD 996 MB LOW CENTERED 160 NM SOUTH OF DUTCH HARBOR WILL 
MOVE TO 280 NM SOUTH OF COLD BAY AT 999 MB THU MORNING BEFORE 
DISSIPATING THU AFTERNOON. HIGH PRESSURE WILL REMAIN OVER THE 
WESTERN BERING THROUGH FRI AFTERNOON.

$$

PKZ150-181215-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
313 PM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 9 FT.
.THU...SE WIND 15 KT. SEAS 7 FT.
.THU NIGHT...SE WIND 15 KT. SEAS 6 FT.
.FRI AND FRI NIGHT...SE WIND 15 KT. SEAS 7 FT.
.SAT THROUGH SUN...E WIND 25 KT. SEAS 13 FT.
.MON...VARIABLE WIND 10 KT. SEAS 9 FT.

$$

PKZ155-181215-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
313 PM AKDT WED MAY 17 2017

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 15 KT. SEAS 9 FT.
.THU...E WIND 15 KT. SEAS 7 FT.
.THU NIGHT...E WIND 15 KT. SEAS 6 FT.
.FRI...E WIND 15 KT. SEAS 6 FT.
.FRI NIGHT...E WIND 25 KT. SEAS 7 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...NE WIND 20 KT. SEAS 12 FT.
.MON...VARIABLE WIND 10 KT. SEAS 8 FT.

$$

PKZ160-181215-
BRISTOL BAY-
313 PM AKDT WED MAY 17 2017

.TONIGHT...SE WIND 20 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI AND FRI NIGHT...E WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 4 FT.
.MON...SE WIND 10 KT. SEAS 2 FT.

$$

PKZ165-181215-
PORT HEIDEN TO CAPE SARICHEF-
313 PM AKDT WED MAY 17 2017

.TONIGHT...SE WIND 15 KT. SEAS 4 FT.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 15 KT. SEAS 2 FT. PATCHY FOG.
.FRI AND FRI NIGHT...NE WIND 15 KT. SEAS 2 FT.
.SAT THROUGH SUN...NE WIND 15 KT. SEAS 6 FT.
.MON...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ170-181215-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...NE WIND 15 KT. SEAS 4 FT.
.THU...E WIND 10 KT. SEAS 4 FT.
.THU NIGHT...E WIND 15 KT. SEAS 4 FT. PATCHY FOG.
.FRI AND FRI NIGHT...NE WIND 20 KT. SEAS 4 FT.
.SAT...NE WIND 20 KT. SEAS 5 FT.
.SUN...VARIABLE WIND 10 KT. SEAS 7 FT.
.MON...SW WIND 15 KT. SEAS 5 FT.

$$

PKZ171-181215-
UNALASKA BAY-
313 PM AKDT WED MAY 17 2017

.TONIGHT...NE WIND 10 KT. SEAS 3 FT.
.THU...SE WIND 10 KT. SEAS 2 FT.
.THU NIGHT...E WIND 10 KT. SEAS 2 FT.
.FRI AND FRI NIGHT...NE WIND 15 KT. SEAS 3 FT.
.SAT THROUGH SUN...N WIND 10 KT. SEAS 3 FT.
.MON...SW WIND 10 KT. SEAS 2 FT.

$$

PKZ172-181215-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...E WIND 15 KT. SEAS 7 FT.
.THU...E WIND 15 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 6 FT.
.FRI AND FRI NIGHT...NE WIND 25 KT. SEAS 9 FT.
.SAT...NE WIND 25 KT. SEAS 12 FT.
.SUN...N WIND 20 KT. SEAS 12 FT.
.MON...W WIND 15 KT. SEAS 6 FT.

$$

PKZ173-181215-
NIKLOSKI TO SEGUAM ISLAND BERING SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 6 FT.
.THU...N WIND 15 KT. SEAS 5 FT.
.THU NIGHT...E WIND 15 KT. SEAS 4 FT.
.FRI...NE WIND 15 KT. SEAS 4 FT.
.FRI NIGHT...NE WIND 20 KT. SEAS 5 FT.
.SAT...NE WIND 20 KT. SEAS 7 FT.
.SUN...S WIND 15 KT. SEAS 7 FT.
.MON...S WIND 20 KT. SEAS 5 FT.

$$

PKZ174-181215-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 6 FT.
.THU...VARIABLE WIND 10 KT. SEAS 6 FT.
.THU NIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI AND FRI NIGHT...NE WIND 25 KT. SEAS 9 FT.
.SAT...N WIND 25 KT. SEAS 12 FT.
.SUN...NW WIND 15 KT. SEAS 12 FT.
.MON...SW WIND 20 KT. SEAS 7 FT.

$$

PKZ175-181215-
SEGUAM ISLAND TO ADAK BERING SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 7 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU NIGHT...NE WIND 15 KT. SEAS 4 FT.
.FRI AND FRI NIGHT...NE WIND 15 KT. SEAS 4 FT.
.SAT...NE WIND 15 KT. SEAS 6 FT.
.SUN...SW WIND 15 KT. SEAS 6 FT.
.MON...SW WIND 20 KT. SEAS 5 FT.

$$

PKZ176-181215-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 6 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 4 FT. PATCHY FOG.
.THU NIGHT...NE WIND 20 KT. SEAS 4 FT.
.FRI...NE WIND 20 KT. SEAS 7 FT.
.FRI NIGHT...N WIND 25 KT. SEAS 9 FT.
.SAT...NW WIND 20 KT. SEAS 9 FT.
.SUN THROUGH MON...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ177-181215-
ADAK TO KISKA-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 7 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.FRI...N WIND 20 KT. SEAS 6 FT.
.FRI NIGHT...N WIND 15 KT. SEAS 6 FT.
.SAT THROUGH MON...SW WIND 20 KT. SEAS 7 FT.

$$

PKZ178-181215-
KISKA TO ATTU-
313 PM AKDT WED MAY 17 2017

.TONIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.THU NIGHT...NE WIND 15 KT. SEAS 5 FT. PATCHY FOG.
.FRI...NE WIND 15 KT. SEAS 6 FT.
.FRI NIGHT...S WIND 25 KT. SEAS 6 FT.
.SAT...SW WIND 25 KT. SEAS 10 FT.
.SUN THROUGH MON...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ179-181215-
PRIBILOF ISLANDS NEAR SHORE WATERS-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 10 KT. SEAS 4 FT. PATCHY FOG.
.THU NIGHT...E WIND 10 KT. SEAS 4 FT. PATCHY FOG.
.FRI AND FRI NIGHT...VARIABLE WIND 10 KT. SEAS 3 FT.
.SAT THROUGH SUN...VARIABLE WIND 10 KT. SEAS 4 FT.
.MON...VARIABLE WIND 10 KT. SEAS 4 FT.

$$

PKZ180-181215-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
313 PM AKDT WED MAY 17 2017

.TONIGHT...E WIND 10 KT. SEAS 3 FT.
.THU...E WIND 15 KT. SEAS 3 FT.
.THU NIGHT...NE WIND 10 KT. SEAS 2 FT. PATCHY FOG.
.FRI AND FRI NIGHT...NE WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...E WIND 15 KT. SEAS 5 FT.
.MON...SE WIND 10 KT. SEAS 4 FT.

$$

PKZ181-181215-
NORTH AND WEST OF NUNIVAK ISLAND-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 15 KT. SEAS 4 FT.
.THU...VARIABLE WIND 10 KT. SEAS 3 FT.
.THU NIGHT...VARIABLE WIND LESS THAN 10 KT. SEAS 2 FT. PATCHY FOG.
.FRI AND FRI NIGHT...VARIABLE WIND 10 KT. SEAS 2 FT.
.SAT THROUGH MON...VARIABLE WIND 10 KT. SEAS 3 FT.

$$

PKZ185-181215-
SAINT MATTHEW ISLAND WATERS-
313 PM AKDT WED MAY 17 2017

.TONIGHT...N WIND 20 KT E OF SAINT MATTHEW ISLAND...N WIND 10 KT W OF
SAINT MATTHEW ISLAND. SEAS 5 FT. PATCHY FOG.
.THU...NE WIND 15 KT. SEAS 3 FT. PATCHY FOG.
.THU NIGHT...NE WIND 10 KT. SEAS 2 FT.
.FRI AND FRI NIGHT...VARIABLE WIND 10 KT. SEAS 2 FT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS 4 FT.
.MON...SE WIND 15 KT. SEAS 5 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion...CORRECTED
National Weather Service Anchorage AK
835 AM AKDT Tue May 16 2017

.ANALYSIS AND UPPER LEVELS...

There is a 75-125 knot Pacific subtropical jet stream stretching
from 40N to 50N. The strongest PV anomaly is centered south of
the Alaska Peninsula this morning with a well defined dry
airstream trailing this feature as seen on Water Vapor satellite
imagery. The associated warm front is quickly approaching Kodiak
Island while the main surface low is centered north of Dutch
Harbor. Across Southern Alaska, shortwave ridging is building
ahead of the warm front, and this has allowed for mostly quiescent
weather inland. Weak coastal ridging along the North Gulf Coast
along with weak interior low pressure has allowed for increasing
southeast gap winds through Turnagain Arm. Some of these winds
have clipped the west side of Anchorage early this morning, as
well. Finally, overnight polar orbiting nighttime microphysics
satellite imagery also captured an area of low stratus and fog in
the North Gulf.

&&

.MODEL DISCUSSION...

The models have settled into excellent agreement with all the
major weather features for the next two days. The main area of
discrepancy over the past few days was the timing of when the
North Pacific front would reach the North Gulf Coast, but the
models have all come into a consensus that will occur by Tuesday
night before falling apart. In this pattern, the greatest
discrepancies among models tends to be the showery and convective
precipitation patterns inland, and all the models show various
biases. However, forecast confidence remains high through the week
before uncertainty increases for the weekend. The GFS was favored
for this forecast along with some hi-res NAM guidance for gap
winds.

&&

.AVIATION...
PANC...VFR conditions will dominate the forecast period. The
bigger challenge will continue to be the timing/onset of southeast
winds at Anchorage airport in the afternoon and evening periods.
There should be a lull in southeast wind by this morning before
they increase again in the mid afternoon. These gusty southeast
winds will likely continue through the overnight hours.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
An upper level high over the area will slowly slide north today.
Surface high pressure will build along the north Gulf coast ahead
of a front moving into Kodiak Island. The thermal trough will move
north of the Alaska Range. These two factors will allow gusty
winds to develop through the Copper River basin, the Knik River
Valley and Turnagain Arm. The front will reach the Gulf coast
early Wednesday morning, but weaken considerably by that time. The
remnants of the front will then work inland during the day
Wednesday, with some lingering showers through Wednesday night.
Another front will move into Kodiak Island Thursday morning.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2...Tue and Wed)...
The main focus in the the short range forecast is wind associated
with a front that moves inland across the Southwest today.
Southeast winds are expected to rapidly increase this morning as
the pressure gradient tightens between a surface low near the
Alaska Peninsula and a ridge across Southcentral. A low level jet
max in the southeasterly flow aloft, orients from the western
Gulf to Bristol Bay. Strong gusty winds will mix down to the
surface at day break and continue through the evening before
tapering off tonight. Southeasterly flow continues through the
end of the week, however gusts will mainly be confined along the
Aleutian Range. Rain associated with the front will bring the
highest accumulations along the eastern Alaska Peninsula and
Western Capes today. Rain tapers off with showers remaining in
the forecast through Thursday night as the surface low meanders
near the Peninsula.

&&

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

A broad occluded surface low meanders near the eastern Aleutians
through Thursday night as an upper low over the western Aleutians
merges with the low lifting over the western Alaska Peninsula. The
frontal boundary associated with the surface low focuses rain
across the central and eastern Bering today then diminishes on
Wednesday as the surface low drifts south, aligning with a strong
wave rounding the base of the upper trough. A ridge builds across
the the western waters on Wednesday bringing a stable air mass
and patchy fog for the western and central Aleutians through mid
week.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The forecast period commences with two closed lows influencing the
Aleutians...one south of Kiska Island and the other west of
Kodiak. Both the GFS ensemble mean and the ECMWF are tightly
clustered at 500 MB with both features...while the Canadian GEM
pings into the lead storm but continues to have run to run
continuity issues with the second storm. Due to the handling of
the overall pattern...have better confidence in the ECMWF and GFS.
The coastal ridge will set up over SE AK and block the first
system. Expect the surface low to fill but definitely ushering
moisture into the AK Peninsula and Kodiak Island. While the second
low pushes into the Gulf of Alaska, robust easterly winds and an
impulse will get ejected from the system bringing the next wave of
moisture to the region. This is looking to be a pretty wet period
for the AK Peninsula and Kodiak...with ridging over the Bering
and ridging over SE AK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale 138 160 174 175 176 177 178 180 411 412.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...JRA
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KH
LONG TERM...PS