Gale Warning 422, NWS Anchorage, AK

893 
FZAK52 PAFC 121131
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
331 AM AKDT TUE MAY 12 2015

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.

PKZ199-130045-
331 AM AKDT TUE MAY 12 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 MB LOW 200 NM SOUTH OF SHEMYA TUE MORNING MOVES TO 140 NM
NORTH OF KISKA AT 978 MB WED MORNING BEFORE MOVING 90 NM WEST OF
SAINT MATTHEW ISLAND THU MORNING. THIS LOW THEN BECOMES NEARLY
STATIONARY THROUGH THU AFTERNOON. A SECOND LOW FORMS 110 NM SOUTH
OF NIKOLSKI AT 989 MB THU MORNING BEFORE MOVING TO 180 NM
SOUTHEAST OF DUTCH HARBOR AT 990 MB THU AFTERNOON.

$$

PKZ150-130045-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
331 AM AKDT TUE MAY 12 2015

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

.TODAY...NW WIND 15 KT BECOMING S IN THE AFTERNOON W OF CHIRIKOF
ISLAND. SEAS 7 FT.
.TONIGHT...SE WIND 25 KT. SEAS 8 FT. RAIN.
.WED...S WIND 25 KT. SEAS 8 FT. RAIN.
.WED NIGHT...SE WIND 15 KT. SEAS 7 FT.
.THU THROUGH FRI...S WIND 20 KT. SEAS 11 FT.
.SAT...SE WIND 25 KT. SEAS 9 FT.

$$

PKZ155-130045-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 30 KT. FROM THE SHUMAGIN ISLANDS E...S WIND 15
KT BECOMING SE 25 KT IN THE AFTERNOON. SEAS 8 FT. RAIN.
.TONIGHT...SE WIND 30 KT. SEAS 9 FT. RAIN.
.WED...S WIND 25 KT. SEAS 10 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 11 FT.
.THU THROUGH FRI...S WIND 20 KT. SEAS 11 FT.
.SAT...S WIND 25 KT. SEAS 10 FT.

$$

PKZ160-130045-
BRISTOL BAY-
331 AM AKDT TUE MAY 12 2015

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

.TODAY...SW WIND 10 KT BECOMING SE 15 KT IN THE AFTERNOON. SEAS 3
FT.
.TONIGHT...SE WIND 20 KT INCREASING TO 30 KT AFTER MIDNIGHT. SEAS
5 FT. RAIN.
.WED...SE WIND 25 KT. SEAS 5 FT. RAIN.
.WED NIGHT...SE WIND 15 KT. SEAS 4 FT.
.THU THROUGH FRI...SE WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 25 KT. SEAS 5 FT.

$$

PKZ165-130045-
PORT HEIDEN TO CAPE SARICHEF-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. FROM
PORT MOLLER E...SE WIND 10 KT INCREASING TO 20 KT IN THE
AFTERNOON SEAS 6 FT. RAIN.
.TONIGHT...SE WIND 30 KT. SEAS 7 FT. RAIN.
.WED...S WIND 25 KT. SEAS 6 FT.
.WED NIGHT...SE WIND 15 KT. SEAS 6 FT.
.THU...SE WIND 15 KT. SEAS 5 FT.
.FRI...S WIND 20 KT. SEAS 5 FT.
.SAT...SE WIND 25 KT. SEAS 6 FT.

$$

PKZ170-130045-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. SEAS 8 FT. RAIN.
.TONIGHT...S WIND 30 KT. SEAS 10 FT. RAIN SHOWERS.
.WED...SW WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
10 FT.
.WED NIGHT...SE WIND 15 KT. SEAS 8 FT.
.THU...N WIND 15 KT. SEAS 6 FT.
.FRI THROUGH SAT...S WIND 20 KT. SEAS 5 FT.

$$

PKZ171-130045-
UNALASKA BAY-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

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

$$

PKZ172-130045-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 30 KT. SEAS 9 FT. RAIN.
.TONIGHT...S WIND 30 KT. SEAS 14 FT.
.WED...SW WIND 30 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 15
FT.
.WED NIGHT...SE WIND 20 KT. SEAS 13 FT.
.THU...SW WIND 15 KT. SEAS 12 FT.
.FRI...S WIND 20 KT. SEAS 9 FT.
.SAT...S WIND 25 KT. SEAS 8 FT.

$$

PKZ173-130045-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING TODAY...

.TODAY...SE WIND 35 KT. SEAS 9 FT. RAIN.
.TONIGHT...S WIND 30 KT. SEAS 12 FT. RAIN SHOWERS.
.WED...SW WIND 30 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 12
FT.
.WED NIGHT...E WIND 15 KT. SEAS 10 FT.
.THU...NW WIND 15 KT. SEAS 7 FT.
.FRI THROUGH SAT...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ174-130045-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING TONIGHT...

.TODAY...S WIND 30 KT. SEAS 11 FT. RAIN.
.TONIGHT...S WIND 35 KT. SEAS 17 FT. RAIN SHOWERS.
.WED...SW WIND 30 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 17
FT.
.WED NIGHT...E WIND 15 KT. SEAS 14 FT.
.THU...NW WIND 20 KT. SEAS 11 FT.
.FRI THROUGH SAT...SW WIND 20 KT. SEAS 10 FT.

$$

PKZ175-130045-
SEGUAM ISLAND TO ADAK BERING SIDE-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 30 KT. SEAS 8 FT. RAIN.
.TONIGHT...S WIND 30 KT. SEAS 8 FT. RAIN SHOWERS.
.WED...SW WIND 30 KT. SEAS 9 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 7 FT.
.THU...SW WIND 15 KT. SEAS 6 FT.
.FRI...S WIND 15 KT. SEAS 4 FT.
.SAT...W WIND 15 KT. SEAS 5 FT.

$$

PKZ176-130045-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING THROUGH TONIGHT...

.TODAY...S WIND 35 KT. SEAS 12 FT. RAIN.
.TONIGHT...SW WIND 35 KT. SEAS 18 FT. RAIN SHOWERS.
.WED...SW WIND 30 KT. SEAS 19 FT.
.WED NIGHT...SE WIND 20 KT. SEAS 16 FT.
.THU...SW WIND 20 KT. SEAS 10 FT.
.FRI...S WIND 20 KT. SEAS 8 FT.
.SAT...W WIND 20 KT. SEAS 9 FT.

$$

PKZ177-130045-
ADAK TO KISKA-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING TONIGHT...

.TODAY...SE WIND 25 KT. SEAS 11 FT. RAIN.
.TONIGHT...S WIND 35 KT EXCEPT 25 KT BERING SIDE. BERING
SIDE...SEAS 9 FT. PACIFIC SIDE...SEAS 13 FT BUILDING TO 18 FT
AFTER MIDNIGHT. RAIN SHOWERS.
.WED...SW WIND 30 KT EXCEPT NW 25 KT FROM AMCHITKA W. SEAS 12 FT
BERING SIDE...19 FT PACIFIC SIDE.
.WED NIGHT...W WIND 25 KT. SEAS 12 FT.
.THU...SW WIND 15 KT. SEAS 8 FT.
.FRI...N WIND 15 KT. SEAS 7 FT.
.SAT...W WIND 20 KT. SEAS 8 FT.

$$

PKZ178-130045-
KISKA TO ATTU-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NE WIND 40 KT. SEAS 16 FT. RAIN.
.TONIGHT...N WIND 40 KT EXCEPT N 30 KT E OF SHEMYA. SEAS 17 FT.
RAIN.
.WED...N WIND 35 KT. SEAS 16 FT.
.WED NIGHT...N WIND 30 KT. SEAS 13 FT.
.THU...N WIND 15 KT. SEAS 9 FT.
.FRI...N WIND 20 KT. SEAS 8 FT.
.SAT...NW WIND 20 KT. SEAS 8 FT.

$$

PKZ179-130045-
PRIBILOF ISLANDS NEAR SHORE WATERS-
331 AM AKDT TUE MAY 12 2015

...GALE WARNING TODAY...

.TODAY...E WIND 20 KT BECOMING SE 35 KT IN THE AFTERNOON. SEAS 5
FT BUILDING TO 9 FT. RAIN.
.TONIGHT...SE WIND 30 KT. SEAS 10 FT. RAIN.
.WED...S WIND 25 KT. SEAS 10 FT.
.WED NIGHT...S WIND 20 KT. SEAS 10 FT.
.THU...VARIABLE WIND 10 KT. SEAS 7 FT.
.FRI...VARIABLE WIND 10 KT. SEAS 4 FT.
.SAT...SE WIND 15 KT. SEAS 4 FT.

$$

PKZ180-130045-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS
BUILDING TO 4 FT.
.TONIGHT AND WED...SE WIND 30 KT. SEAS 7 FT. RAIN.
.WED NIGHT...SE WIND 20 KT. SEAS 6 FT.
.THU...E WIND 15 KT. SEAS 6 FT.
.FRI...SE WIND 15 KT. SEAS 5 FT.
.SAT...SE WIND 25 KT. SEAS 6 FT.

$$

PKZ181-130045-
NORTH AND WEST OF NUNIVAK ISLAND-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS
IN ICE FREE WATERS 3 FT.
.TONIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 4 FT. RAIN.
.WED...SE WIND 30 KT. SEAS IN ICE FREE WATERS 4 FT. RAIN.
.WED NIGHT...S WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.THU...E WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.FRI...SE WIND 15 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.SAT...SE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ185-130045-
SAINT MATTHEW ISLAND WATERS-
331 AM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE WIND 15 KT BECOMING E 25 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 4 FT.
.TONIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT. RAIN AND
SNOW SHOWERS.
.WED...E WIND 25 KT E OF SAINT MATTHEW ISLAND... NE 30 KT W OF
SAINT MATTHEW ISLAND. SEAS IN ICE FREE WATERS 6 FT. RAIN AND SNOW
SHOWERS.
.WED NIGHT...SE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.THU...SE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI THROUGH SAT...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

240 
FZAK52 PAFC 122303
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
303 PM AKDT TUE MAY 12 2015

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.

PKZ199-131200-
303 PM AKDT TUE MAY 12 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 976 MB LOW 50 NM SOUTHEAST OF SHEMYA WILL WEAKEN AS IT TRACKS
INTO THE NORTH PACIFIC WED. A 978 MB LOW WILL FORM 165 NM WEST OF
ADAK TUE EVENING THEN WEAKEN TO 990 MB AS IT TRACKS TO 120 NM WEST
OF SAINT MATTHEW ISLAND ON THU. A PACIFIC LOW WILL TRACK TO 175 NM
SOUTH OF DUTCH HARBOR WED NIGHT AT 990 MB THEN WEAKEN ON THU.

$$

PKZ150-131200-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
303 PM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 25 KT. SEAS 7 FT. RAIN.
.WED...SE WIND 25 KT IN THE MORNING BECOMING S 15 KT. SEAS 7 FT.
RAIN.
.WED NIGHT...SE WIND 20 KT. SEAS 7 FT. PATCHY FOG. RAIN.
.THU AND THU NIGHT...SE WIND 20 KT. SEAS 9 FT.
.FRI...SE WIND 20 KT. SEAS 10 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 10 FT.

$$

PKZ155-131200-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...SE WIND 30 KT BECOMING SW 20 AFTER MIDNIGHT. SEAS 
9 FT. RAIN.
.WED...S WIND 20 KT. SEAS 10 FT. RAIN.
.WED NIGHT...SE WIND 10 KT...INCREASING TO 20 KT AFTER MIDNIGHT W
OF THE SHUMAGIN ISLANDS. SEAS 10 FT. PATCHY FOG.
.THU...SE WIND 20 KT. SEAS 10 FT.
.THU NIGHT...VARIABLE WIND 15 KT. SEAS 10 FT.
.FRI...S WIND 20 KT. SEAS 9 FT.
.SAT THROUGH SUN...S WIND 25 KT. SEAS 12 FT.

$$

PKZ160-131200-
BRISTOL BAY-
303 PM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...E WIND 20 KT BECOMING SE 30 KT AFTER MIDNIGHT. SEAS 5
FT. RAIN.
.WED...SE WIND 30 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 5 FT.
RAIN.
.WED NIGHT...VARIABLE WIND 10 KT BECOMING E AFTER MIDNIGHT. SEAS
4 FT. PATCHY FOG. RAIN.
.THU AND THU NIGHT...E WIND 20 KT. SEAS 5 FT.
.FRI...SE WIND 20 KT. SEAS 4 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 5 FT.

$$

PKZ165-131200-
PORT HEIDEN TO CAPE SARICHEF-
303 PM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 30 KT DIMINISHING TO S 20 KT AFTER MIDNIGHT.
GUSTS TO 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT OUT OF BAYS AND
PASSES. SEAS 7 FT. RAIN.
.WED...SW WIND 20 KT DIMINISHING TO 10 KT IN THE AFTERNOON. GUSTS
TO 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON OUT OF BAYS AND
PASSES. SEAS 7 FT.
.WED NIGHT...S WIND 10 KT BECOMING SE AFTER MIDNIGHT. GUSTS TO 20
KT IN THE EVENING OUT OF BAYS AND PASSES. SEAS 6 FT.
.THU AND THU NIGHT...NE WIND 15 KT. SEAS 5 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 6 FT.

$$

PKZ170-131200-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
303 PM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 30 KT WITH GUSTS TO 40 KT BECOMING SW 30 KT
AFTER MIDNIGHT. SEAS 9 FT.
.WED...SW WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
10 FT.
.WED NIGHT...S WIND 15 KT IN THE EVENING BECOMING NE. SEAS 7 FT.
.THU...NE WIND 20 KT. SEAS 6 FT.
.THU NIGHT...NW WIND 15 KT. SEAS 5 FT.
.FRI THROUGH SUN...S WIND 20 KT. SEAS 6 FT.

$$

PKZ171-131200-
UNALASKA BAY-
303 PM AKDT TUE MAY 12 2015

.TONIGHT...SE WIND 20 KT WITH GUSTS TO 35 KT EARLY BECOMING SW 15
KT WITH GUSTS TO 30 KT AFTER MIDNIGHT. SEAS 3 FT.
.WED...SW WIND 15 KT WITH GUSTS TO 25 KT EARLY DIMINISHING TO 10
KT IN THE AFTERNOON. SEAS 2 FT.
.WED NIGHT...S WIND 10 KT IN THE EVENING BECOMING E. SEAS 2 FT.
RAIN.
.THU...NE WIND 15 KT. SEAS 3 FT.
.THU NIGHT...W WIND 10 KT. SEAS 2 FT.
.FRI THROUGH SUN...S WIND 15 KT. SEAS 2 FT.

$$

PKZ172-131200-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...SE WIND 30 KT IN THE EVENING BECOMING SW 25 KT AFTER
MIDNIGHT. SEAS 14 FT. RAIN.
.WED...SW WIND 25 KT EARLY DIMINISHING TO S 15 KT. SEAS 14 FT.
.WED NIGHT...S WIND 15 KT BECOMING SE 20 KT AFTER MIDNIGHT. SEAS
12 FT. RAIN.
.THU...SE WIND 20 KT. SEAS 12 FT.
.THU NIGHT...W WIND 15 KT. SEAS 10 FT.
.FRI...S WIND 20 KT. SEAS 9 FT.
.SAT...S WIND 25 KT. SEAS 11 FT.
.SUN...S WIND 20 KT. SEAS 11 FT.

$$

PKZ173-131200-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...S WIND 30 KT. SEAS 11 FT.
.WED...SW WIND 30 KT DIMINISHING TO 15 KT LATE AFTERNOON. SEAS 
12 FT.
.WED NIGHT...S WIND 15 KT EARLY BECOMING NE AFTER MIDNIGHT. SEAS
9 FT. PATCHY FOG.
.THU...N WIND 20 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON.
SEAS 6 FT.
.THU NIGHT...VARIABLE WIND 15 KT. SEAS 5 FT.
.FRI...S WIND 25 KT. SEAS 6 FT.
.SAT THROUGH SUN...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ174-131200-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...S WIND 30 KT. SEAS 16 FT.
.WED...SW WIND 30 KT BECOMING VARIABLE 15 KT LATE AFTERNOON. SEAS
17 FT.
.WED NIGHT...NE WIND 20 KT. SEAS 14 FT. PATCHY FOG.
.THU...N WIND 20 KT. SEAS 11 FT.
.THU NIGHT...NW WIND 15 KT BECOMING SW AFTER MIDNIGHT. SEAS 
10 FT.
.FRI...S WIND 25 KT. SEAS 9 FT.
.SAT THROUGH SUN...SW WIND 20 KT. SEAS 11 FT.

$$

PKZ175-131200-
SEGUAM ISLAND TO ADAK BERING SIDE-
303 PM AKDT TUE MAY 12 2015

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SW WIND 30 KT. SEAS 8 FT.
.WED...SW WIND 30 KT BECOMING S 20 KT LATE AFTERNOON. SEAS 
9 FT.
.WED NIGHT...S WIND 15 KT. SEAS 7 FT. PATCHY FOG.
.THU...S WIND 20 KT. SEAS 6 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 6 FT.
.FRI...SE WIND 25 KT. SEAS 6 FT.
.SAT THROUGH SUN...SW WIND 15 KT. SEAS 7 FT.

$$

PKZ176-131200-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
303 PM AKDT TUE MAY 12 2015

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 30 KT BECOMING SW 35 KT BY LATE EVENING. SEAS
17 FT.
.WED...SW WIND 30 KT BECOMING S 20 KT IN THE AFTERNOON. SEAS 
19 FT.
.WED NIGHT...SE WIND 15 KT IN THE EVENING BECOMING VARIABLE. SEAS
14 FT. PATCHY FOG.
.THU...SW WIND 15 KT. SEAS 10 FT.
.THU NIGHT...SW WIND 20 KT. SEAS 8 FT.
.FRI...S WIND 25 KT. SEAS 8 FT.
.SAT THROUGH SUN...SW WIND 20 KT. SEAS 9 FT.

$$

PKZ177-131200-
ADAK TO KISKA-
303 PM AKDT TUE MAY 12 2015

...GALE WARNING TONIGHT...

.TONIGHT...SW WIND 35 KT. BERING SIDE...SEAS 10 FT. PACIFIC
SIDE...SEAS 13 FT BUILDING TO 20 FT AFTER MIDNIGHT. PATCHY FOG.
.WED...S WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. W OF
180...S WIND 25 KT BECOMING N 20 KT LATE AFTERNOON. SEAS 13 FT
BERING SIDE...21 FT PACIFIC SIDE. PATCHY FOG. RAIN.
.WED NIGHT...S WIND 20 KT. W OF 180...NW WIND 20 KT. SEAS 11 FT.
PATCHY FOG.
.THU...W WIND 20 KT. SEAS 8 FT.
.THU NIGHT...S WIND 25 KT. SEAS 7 FT.
.FRI...NE WIND 20 KT. SEAS 7 FT.
.SAT THROUGH SUN...W WIND 20 KT. SEAS 8 FT.

$$

PKZ178-131200-
KISKA TO ATTU-
303 PM AKDT TUE MAY 12 2015

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NE WIND 40 KT. SEAS 17 FT. PATCHY FOG. RAIN.
.WED...N WIND 35 KT. SEAS 16 FT.
.WED NIGHT...N WIND 25 KT BECOMING NW 15 KT AFTER MIDNIGHT. SEAS
12 FT.
.THU...NW WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON.
SEAS 8 FT.
.THU NIGHT...E WIND 25 KT. SEAS 7 FT.
.FRI...N WIND 30 KT. SEAS 8 FT.
.SAT...NW WIND 20 KT. SEAS 8 FT.
.SUN...NW WIND 15 KT. SEAS 6 FT.

$$

PKZ179-131200-
PRIBILOF ISLANDS NEAR SHORE WATERS-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...SE WIND 25 KT DIMINISHING TO 20 KT BY MIDNIGHT. SEAS
10 FT. RAIN SHOWERS.
.WED...S WIND 20 KT INCREASING TO SW 30 KT BY AFTERNOON. SEAS 10
FT. RAIN SHOWERS.
.WED NIGHT...SW WIND 20 KT DIMINISHING TO S 15 KT AFTER MIDNIGHT.
SEAS 10 FT.
.THU...VARIABLE WIND 10 KT. SEAS 6 FT.
.THU NIGHT...VARIABLE WIND 10 KT. SEAS 4 FT.
.FRI THROUGH SUN...SE WIND 15 KT. SEAS 6 FT.

$$

PKZ180-131200-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...SE WIND 30 KT. SEAS 8 FT. RAIN.
.WED...SE WIND 30 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
8 FT. RAIN.
.WED NIGHT...S WIND 25 KT BECOMING SE 15 KT AFTER MIDNIGHT. SEAS
7 FT. PATCHY FOG.
.THU...E WIND 10 KT. SEAS 5 FT.
.THU NIGHT...VARIABLE WIND 15 KT. SEAS 3 FT.
.FRI...SE WIND 15 KT. SEAS 4 FT.
.SAT THROUGH SUN...SE WIND 25 KT. SEAS 7 FT.

$$

PKZ181-131200-
NORTH AND WEST OF NUNIVAK ISLAND-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 4 FT. RAIN AND
SNOW.
.WED...SE WIND 30 KT. SEAS IN ICE FREE WATERS 3 FT. PATCHY FOG.
RAIN.
.WED NIGHT...S WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.THU...SE WIND 20 KT. SEAS IN ICE FREE WATERS 2 FT.
.THU NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.FRI...E WIND 15 KT. SEAS IN ICE FREE WATERS 1 FOOT.
.SAT THROUGH SUN...SE WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.

$$

PKZ185-131200-
SAINT MATTHEW ISLAND WATERS-
303 PM AKDT TUE MAY 12 2015

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

.TONIGHT...E WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT. SNOW AND
RAIN.
.WED...NE WIND 30 KT...EXCEPT BECOMING SE 20 KT IN THE AFTERNOON
FROM SAINT MATTHEW ISLAND S AND E. SEAS IN ICE FREE WATERS 6 FT.
PATCHY FOG. RAIN AND SNOW.
.WED NIGHT...S WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT. PATCHY
FOG.
.THU AND THU NIGHT...SE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.FRI...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.SAT...E WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN...E WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
510 AM AKDT MON MAY 11 2015

.ANALYSIS AND UPPER LEVELS...
EARLY MORNING SATELLITE IMAGERY INDICATES THE SPRAWLING BERING SEA
LOW IS BEGINNING TO SPLIT INTO TWO DISTINCT LOWS. THE NORTHERN LOW
CAN BE SEEN HEADING THROUGH THE NORTHERN BERING AND IS EXPECTED TO
SLOWLY WEAKEN AS IT MOVES TOWARDS NORTON SOUND TODAY. TO THE
SOUTH...A NEW LOW DEVELOPING JUST SOUTH OF THE AKPEN IS BEGINNING
TO INTENSIFY AS IT WRAPS INTO THE UPPER TROUGH OVER THE GULF. THIS
LOW WILL CONTINUE TO DEVELOP AND BECOME THE FOCAL POINT FOR THE
WEATHER AROUND THE GULF FOR THE NEXT 48 HOURS. OVER THE NORTHERN
GULF THE REMNANTS OF THE SYSTEM THAT BROUGHT WIDESPREAD RAIN TO
THE GULF COAST THIS WEEKEND CONTINUES TO BRING CLOUD COVER INTO
SOUTHCENTRAL THROUGH THE OVERNIGHT HOURS...WITH SHOWERS CONFINED
TO THE GULF COAST. ANOTHER SYSTEM IS BEGINNING TO APPEAR IN THE
NORTHWEST PACIFIC AND IS HEADING TOWARDS THE WESTERN ALEUTIANS.
THIS SYSTEM WILL CONTINUE ON THIS TRACK AND DOMINATE THE WEATHER
OVER THE BERING SEA THROUGH THE MIDDLE OF THIS WEEK.

&&

.MODEL DISCUSSION...
MODEL AGREEMENT REMAINS VERY GOOD WITH THE DEVELOPING LOW SOUTH OF
THE AKPEN AS IT PROGRESSES TOWARDS THE GULF TODAY...SO CONFIDENCE
REMAINS GOOD WITH THIS SYSTEM AND ONLY MINOR CHANGES WERE REQUIRED
OVERNIGHT. OVER THE WESTERN ALEUTIANS THERE HAS BEEN A SIGNIFICANT
INCREASE IN MODEL AGREEMENT SINCE YESTERDAY WITH THE APPROACHING
NORTH PACIFIC LOW...ESPECIALLY WITH THE STRENGTH OF THIS SYSTEM.
THERE IS NOW GOOD CONFIDENCE THAT THIS WILL BECOME A MODERATE GALE
FORCE LOW AND REMAIN AT THAT INTENSITY INTO TUESDAY. THE MODELS
ARE NOW IN GREAT SYNOPTIC AGREEMENT...SO THE GEM REGIONAL WAS
PREFERRED EARLY ON FOR ITS HIGHER RESOLUTION. THE EC WAS THEN
FAVORED STARTING TUESDAY NIGHT AS MINOR DIFFERENCES IN LOW
POSITION DEVELOP.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...

THE COLD UPPER LEVEL LOW MOVING OVER SOUTHCENTRAL ALASKA IS
KEEPING THE ATMOSPHERE UNSTABLE ENOUGH FOR A FEW SHOWERS. THE MAIN
AREA OF SHOWERS WILL REMAIN ALONG THE NORTH GULF COAST WITH ONLY A
FEW MAKING IT INLAND. A RIDGE WILL BEGIN TO BUILD OVER THE AREA
TUESDAY AND TUESDAY NIGHT WHICH WILL DECREASE THE CLOUD COVER
BEFORE THE NEXT FRONT BEGINS TO MOVE INTO THE WESTERN PART OF THE
AREA ON WEDNESDAY.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
A WEAKENING FRONT LYING JUST OFF THE SOUTHWEST ALASKA
COAST WILL MOVE INLAND TODAY BRINGING WITH IT A CHANCE OF
SHOWERS OVER THE REGION BEFORE DISSIPATING ON TUESDAY. MOST OF THE
RAINFALL TODAY WILL BEGIN ALONG THE ALASKA/ALEUTIAN RANGE AND THE
NORTHWEST COAST BEFORE SPREADING INLAND AS THE FRONT MOVES
EASTWARD. IN THE LOWER LEVEL OF THE ATMOSPHERE THERE WILL BE SOME
WEAK UPSLOPE FLOW ON THE SOUTH AND WEST SIDE OF THE KILBUCK
MOUNTAINS AS WELL AS THE LOWER ALEUTIAN RANGE...SO THOSE AREAS ARE
LIKELY TO SEE THE BEST CHANCE FOR PRECIPITATION TODAY AND
TONIGHT.

THINGS WILL DRY OUT TOMORROW AS A WEAK RIDGE QUICKLY MOVES THROUGH
THE AREA. THE FRONT ASSOCIATED WITH THE DEEP LOW OVER THE FAR
WESTERN ALEUTIANS WILL BEGIN TO IMPACT THE COAST LATE TUESDAY
NIGHT. THIS SYSTEM HAS DEEP FETCH OF MOISTURE FROM ABOUT 25N...SO
WIDESPREAD RAIN IS EXPECTED AS THE FRONT MOVES ASHORE.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
THE HEAVY RAINFALL OVER THE WESTERN PORTIONS OF THE ALASKA
PENINSULA HAS ENDED AND RAINFALL WILL TAPER OFF TODAY AS THE
FRONT MOVES INLAND OVER SOUTHWEST ALASKA. WINDS SHOULD GENERALLY
DECREASE OVER THE REGION TODAY AS THE LOW SOUTH OF THE ALASKA
PENINSULA MOVES EASTWARD AND A RIDGE QUICKLY MOVES THROUGH THE
AREA. SOME AREAS OF SHOWERS WILL REMAIN OVER THE EASTERN ALEUTIANS
AND THE ALASKA PENINSULA WITH ENOUGH INSTABILITY AND MOISTURE LEFT
FROM THE FRONT TO GENERATE ISOLATED SHOWERS.

BY LATE TONIGHT ATTENTION SHIFTS WESTWARD AS THE STILL DEEPENING
LOW APPROACHES THE WESTERN ALEUTIANS. THE FRONT ASSOCIATED WITH
THE LOW WILL BEGIN TO MAKE ITS PRESENCE KNOWN TONIGHT ALONG THE
WESTERN AND CENTRAL ALEUTIANS AS WINDS INCREASE TO GALE FORCE
ALONG THE SOUTHERN SIDE OF CENTRAL AND WESTERN ALEUTIANS TONIGHT.
THIS SYSTEM HAS A MOISTURE FETCH FROM DEEP IN THE TROPICAL
PACIFIC /ABOUT 25N/ WITH THE 00Z NAFES MODEL RUN INDICATING
PRECIPITABLE WATER ANOMALIES OF UP TO 4 STANDARD DEVIATIONS FROM
NORMAL ALONG THIS PLUME. THUS...RAINFALL AMOUNTS MAY BE HEAVY AT
TIMES WITH LOCAL TOTALS OF ONE HALF TO ONE INCH POSSIBLE TONIGHT
INTO TOMORROW.

AS THE LOW MOVES ACROSS THE CHAIN JUST EAST OF SHEMYA AND INTO
THE SOUTHWESTERN BERING SEA...THE WIND FIELD WILL BE QUITE LARGE
WITH NEAR GALE FORCE WINDS EXPECTED OVER MOST OF THE BERING AND
ALEUTIAN CHAIN. THE STRONGEST WINDS TOMORROW AND TOMORROW NIGHT
WILL INITIALLY BE LOCATED ALONG THE FRONT AS IT MOVES NORTHWARD
THROUGH THE BERING BUT WILL SHIFT TOMORROW NIGHT TO THE BACKSIDE
OF THE LOW AND THE SOUTH SIDE OF THE ALEUTIAN CHAIN. WINDS SHOULD
BEGIN TO DECREASE LATE TOMORROW NIGHT AS THE LOW BEGINS TO
ELONGATE NORTHEASTWARD AND WEAKEN.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE SOUTHWEST MAINLAND
AND GULF FROM THE WEST TUESDAY AFTERNOON...AND CONTINUE TO AMPLIFY
AS IT SETS UP OVER SOUTHCENTRAL WEDNESDAY. SOME GUSTY GAP WINDS
ARE EXPECTED TO DEVELOP AS THE GRADIENT TIGHTENS UP OVER WESTERN
PRINCE WILLIAM SOUND AND TURNAGAIN ARM...AS WELL AS SOME WARMER
TEMPERATURES ADVECTING UP FROM THE NORTHERN PACIFIC WHICH WILL
PERSIST THROUGH THE BEGINNING OF THE WEEKEND. RAINY AND WINDY
CONDITIONS ARE EXPECTED TO TRACK INTO THE SOUTHWEST MAINLAND AND
GULF WEDNESDAY AS A FRONTAL SYSTEM ASSOCIATED WITH A NORTH
PACIFIC LOW NEAR THE WESTERN ALEUTIANS TRACKS THROUGH THE AREA.
THE FRONT WILL THEN WEAKEN AND PUSH INTO SOUTHCENTRAL WEDNESDAY
EVENING...WHERE THE RAINY AND GUSTY CONDITIONS WILL PERSIST
THROUGH EARLY THURSDAY MORNING BEFORE BRIEFLY TAPERING OFF. MODELS
ARE NOW INDICATING THAT THE ABOVE MENTIONED NORTH PACIFIC LOW OVER
THE WESTERN ALEUTIANS WILL BEGIN TO WEAKEN AND TRANSFER ENERGY TO
A TRIPLE POINT LOW FORMING SOUTH OF THE CENTRAL ALEUTIANS
WEDNESDAY AFTERNOON. THE FRONTAL SYSTEM ASSOCIATED WITH THIS
TRIPLE POINT LOW WILL INITIALLY BRING SOME GUSTY AND SHOWERY
CONDITIONS TO THE FAR EASTERN ALEUTIANS AND ALASKA PENINSULA
THURSDAY...WHERE OTHERWISE BROAD CYCLONIC FLOW OVER THE REMAINDER
OF THE ALEUTIANS/BERING WILL KEEP SOME SHOWERY CONDITIONS OVER THE
AREA THROUGH THE END OF THE WEEK. THE FRONTAL SYSTEM WILL THEN
QUICKLY CATCH UP TO THE WEAKENING FRONTAL SYSTEM OVER THE GULF
THURSDAY EVENING...REINFORCING THE GUSTY WINDS AND RAINY
CONDITIONS OVER SOUTHCENTRAL THROUGH THE BEGINNING OF THE WEEKEND.
MODELS THEN SHOW THE TRIPLE POINT LOW TRACKING NORTHWARD INTO THE
BRISTOL BAY/EASTERN BERING REGION BY FRIDAY AFTERNOON...WHICH
COULD KEEP SOME OF THE WET AND WINDY CONDITIONS OVER THE ALASKA
PENINSULA AND SOUTHWEST MAINLAND INTO THE WEEKEND. HOWEVER THERE
ARE STILL SOME TIMING AND STRENGTH DISCREPANCIES IN THE MODELS
REGARDING THIS SYSTEM...KEEPING FORECAST CONFIDENCE SLIGHTLY BELOW
AVERAGE.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE
MARINE...GALE WARNING 170 173 175 176 177 178
FIRE WEATHER...NONE

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...EZ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...RF
LONG TERM...TP