Gale Warning 374, NWS Anchorage, AK

963 
FZAK52 PAFC 202316
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
316 PM AKDT MON APR 20 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.

PKZ199-211230-
316 PM AKDT MON APR 20 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 993 MB LOW 35 NM SOUTH OF HOOPER BAY WILL WEAKEN TO 997 MB AS
IT MOVES TO 45 NM EAST OF GAMBELL TUE AFTERNOON AND THEN DISSIPATE
OVER THE FAR NORTHERN BERING SEA TUE NIGHT. A NORTH PACIFIC LOW 
WILL TRACK TO 180 NM SOUTHEAST OF SITKINAK TUE NIGHT AT 980 MB
THEN EXIT ACROSS THE GULF WED. A STRONG FRONT WILL MOVE TO THE
WESTERN ALEUTIANS LATE TUE THEN TRACK TO THE NORTHERN TO EASTERN
BERING ON WED. 

$$

PKZ150-211230-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
316 PM AKDT MON APR 20 2015

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SW WIND 30 KT. SEAS 9 FT. SNOW AND RAIN.
.TUE...S WIND 25 KT. SEAS 8 FT. PATCHY FOG. RAIN AND SNOW.
.TUE NIGHT...SE WIND 25 KT BECOMING N 35 KT AFTER MIDNIGHT. SEAS
10 FT BUILDING TO 14 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...NW WIND 35 KT. SEAS 14 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 10 FT.
.THU...S WIND 20 KT. SEAS 10 FT.
.FRI...SE WIND 15 KT. SEAS 8 FT.
.SAT...N WIND 25 KT. SEAS 8 FT.

$$

PKZ155-211230-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
316 PM AKDT MON APR 20 2015

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...SW WIND 25 KT. SEAS 9 FT. RAIN AND SNOW SHOWERS.
.TUE...VARIABLE WIND 10 KT BECOMING NW 20 KT IN THE AFTERNOON.
FROM THE SHUMAGIN ISLANDS E...S WIND 20 KT BECOMING N IN THE
AFTERNOON. SEAS 6 FT. SNOW AND RAIN SHOWERS.
.TUE NIGHT...NW WIND 30 KT. SEAS 9 FT.
.WED...W WIND 30 KT. SEAS 9 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 10 FT.
.THU...SW WIND 25 KT. SEAS 11 FT.
.FRI...W WIND 25 KT. SEAS 10 FT.
.SAT...NW WIND 30 KT. SEAS 10 FT.

$$

PKZ160-211230-
BRISTOL BAY-
316 PM AKDT MON APR 20 2015

.TONIGHT...S WIND 20 KT. SEAS 4 FT. SNOW AND RAIN SHOWERS.
.TUE...SE WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON.
SEAS 3 FT.
.TUE NIGHT...N WIND 10 KT BECOMING NW AFTER MIDNIGHT. SEAS 2 FT.
RAIN AND SNOW.
.WED...W WIND 15 KT. SEAS 2 FT.
.WED NIGHT...SE WIND 25 KT. SEAS 4 FT.
.THU...SE WIND 20 KT. SEAS 5 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT...N WIND 20 KT. SEAS 4 FT.

$$

PKZ165-211230-
PORT HEIDEN TO CAPE SARICHEF-
316 PM AKDT MON APR 20 2015

.TONIGHT...SW WIND 20 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE...SW WIND 15 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON.
SEAS 4 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 4 FT.
.WED AND WED NIGHT...S WIND 30 KT. SEAS 6 FT.
.THU...S WIND 25 KT. SEAS 8 FT.
.FRI...N WIND 25 KT. SEAS 7 FT.
.SAT...NW WIND 30 KT. SEAS 9 FT.

$$

PKZ170-211230-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
316 PM AKDT MON APR 20 2015

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

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

$$

PKZ171-211230-
UNALASKA BAY-
316 PM AKDT MON APR 20 2015

.TONIGHT...SW WIND 10 KT. SEAS 2 FT. SNOW SHOWERS.
.TUE...W WIND 10 KT INCREASING TO 15 KT IN THE AFTERNOON. SEAS 2
FT.
.TUE NIGHT...W WIND 15 KT. SEAS 2 FT.
.WED...SW WIND 25 KT. SEAS 4 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 3 FT.
.THU...SW WIND 20 KT. SEAS 3 FT.
.FRI...NW WIND 20 KT. SEAS 7 FT.
.SAT...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ172-211230-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
316 PM AKDT MON APR 20 2015

.TONIGHT...W WIND 20 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE...NW WIND 20 KT. SEAS 6 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 7 FT.
.WED...SW WIND 35 KT. SEAS 10 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 13 FT.
.THU...SW WIND 30 KT. SEAS 13 FT.
.FRI THROUGH SAT...NW WIND 30 KT. SEAS 12 FT.

$$

PKZ173-211230-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
316 PM AKDT MON APR 20 2015

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

.TONIGHT...W WIND 25 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE...W WIND 25 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE NIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS
8 FT.
.WED...SW WIND 35 KT. SEAS 11 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 11 FT.
.THU...W WIND 30 KT. SEAS 11 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ174-211230-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
316 PM AKDT MON APR 20 2015

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...W WIND 20 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE...W WIND 25 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE NIGHT...SW WIND 30 KT. SEAS 8 FT.
.WED...SW WIND 35 KT. SEAS 13 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 15 FT.
.THU...SW WIND 30 KT. SEAS 15 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ175-211230-
SEGUAM ISLAND TO ADAK BERING SIDE-
316 PM AKDT MON APR 20 2015

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...NW WIND 25 KT. SEAS 8 FT. SNOW SHOWERS.
.TUE...NW WIND 25 KT. SEAS 8 FT. SNOW SHOWERS.
.TUE NIGHT...SW WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
SEAS 8 FT BUILDING TO 13 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED AND WED NIGHT...SW WIND 30 KT. SEAS 11 FT.
.THU THROUGH SAT...W WIND 30 KT. SEAS 12 FT.

$$

PKZ176-211230-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
316 PM AKDT MON APR 20 2015

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...NW WIND 25 KT. SEAS 7 FT. SNOW SHOWERS.
.TUE...NW WIND 25 KT. SEAS 7 FT.
.TUE NIGHT...SW WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT.
SEAS 8 FT BUILDING TO 13 FT AFTER MIDNIGHT.
.WED...SW WIND 35 KT. SEAS 14 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 14 FT.
.THU...W WIND 30 KT. SEAS 16 FT.
.FRI THROUGH SAT...W WIND 30 KT. SEAS 13 FT.

$$

PKZ177-211230-
ADAK TO KISKA-
316 PM AKDT MON APR 20 2015

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...NW WIND 30 KT. SEAS 9 FT.
.TUE...W WIND 25 KT. SEAS 9 FT. PATCHY FOG.
.TUE NIGHT...SW WIND 35 KT. SEAS 13 FT. RAIN AND SNOW.
.WED AND WED NIGHT...SW WIND 35 KT. SEAS 16 FT.
.THU...W WIND 35 KT. SEAS 18 FT.
.FRI...NW WIND 30 KT. SEAS 15 FT.
.SAT...SW WIND 25 KT. SEAS 9 FT.

$$

PKZ178-211230-
KISKA TO ATTU-
316 PM AKDT MON APR 20 2015

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

.TONIGHT...NW WIND 30 KT. SEAS 9 FT.
.TUE...SW WIND 25 KT BECOMING S 35 KT IN THE AFTERNOON. SEAS 9 FT
BUILDING TO 14 FT IN THE AFTERNOON. PATCHY FOG.
.TUE NIGHT...S WIND 40 KT. SEAS 15 FT. RAIN AND SNOW.
.WED AND WED NIGHT...W WIND 40 KT. SEAS 20 FT.
.THU...NW WIND 35 KT. SEAS 20 FT.
.FRI...W WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 25 KT. SEAS 13 FT.

$$

PKZ179-211230-
PRIBILOF ISLANDS NEAR SHORE WATERS-
316 PM AKDT MON APR 20 2015

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...W WIND 25 KT. SEAS 8 FT. SNOW. FREEZING SPRAY.
.TUE...NW WIND 15 KT. SEAS 5 FT.
.TUE NIGHT...W WIND 20 KT. SEAS 5 FT.
.WED...S WIND 25 KT. SEAS 7 FT.
.WED NIGHT...SW WIND 25 KT. SEAS 11 FT.
.THU...SW WIND 20 KT. SEAS 9 FT.
.FRI THROUGH SAT...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ180-211230-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
316 PM AKDT MON APR 20 2015

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW WIND 25 KT. SEAS IN ICE FREE WATERS 6 FT. SNOW.
FREEZING SPRAY.
.TUE...S WIND 20 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS
IN ICE FREE WATERS 4 FT. FREEZING SPRAY IN THE MORNING ALONG THE
ICE EDGE.
.TUE NIGHT...SW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT.
.WED...S WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...S WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT.
.THU...SE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.SAT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-211230-
NORTH AND WEST OF NUNIVAK ISLAND-
316 PM AKDT MON APR 20 2015

.TONIGHT...SW WIND 15 KT. SNOW.
.TUE...SW WIND 15 KT.
.TUE NIGHT...S WIND 15 KT.
.WED...SE WIND 25 KT.
.WED NIGHT...SE WIND 30 KT.
.THU...SE WIND 20 KT.
.FRI...NE WIND 15 KT.
.SAT...NW WIND 20 KT.

$$

PKZ185-211230-
SAINT MATTHEW ISLAND WATERS-
316 PM AKDT MON APR 20 2015

.TONIGHT...N WIND 20 KT.
.TUE...SW WIND 15 KT E OF SAINT MATTHEW ISLAND...NW 20 KT W OF
SAINT MATTHEW ISLAND.
.TUE NIGHT...SE WIND 15 KT.
.WED...SE WIND 25 KT.
.WED NIGHT...SE WIND 30 KT.
.THU...NE WIND 25 KT.
.FRI...N WIND 25 KT.
.SAT...NW WIND 20 KT.

$$

281 
FZAK52 PAFC 211157
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
357 AM AKDT TUE APR 21 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.

PKZ199-220115-
357 AM AKDT TUE APR 21 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...A 998 MB NORTH PACIFIC
LOW WILL STRENGTHEN TO 979 MB 150 NM SOUTHEAST OF KODIAK TUE
NIGHT AND THEN TRACK TO THE EASTERN GULF. A 980 MB KAMCHATKA LOW
WILL MOVE TO 150 NM NORTHEAST OF SHEMYA AT 980 MB BY WED NIGHT.
THE ASSOCIATED WEATHER FRONT WILL CROSS THE WESTERN ALEUTIANS TUE
EVENING AND MOVE TO THE CENTRAL ALEUTIANS BY WED AFTERNOON.

$$

PKZ150-220115-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...SE WIND 30 KT. SEAS 8 FT. PATCHY FOG. RAIN AND SNOW.
.TONIGHT...E OF CHIRIKOF ISLAND...E WIND 35 KT. W OF CHIRIKOF
ISLAND...N WIND 30 KT INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
10 FT BUILDING TO 15 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...N WIND 45 KT BECOMING NW 25 KT IN THE AFTERNOON. SEAS 15
FT SUBSIDING TO 10 FT IN THE AFTERNOON.
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT.
.THU...S WIND 25 KT. SEAS 10 FT.
.FRI...SE WIND 15 KT. SEAS 8 FT.
.SAT...N WIND 25 KT. SEAS 8 FT.

$$

PKZ155-220115-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
357 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...VARIABLE WIND 15 KT BECOMING NW 25 KT IN THE AFTERNOON.
FROM THE SHUMAGIN ISLANDS E...S WIND 20 KT BECOMING NE IN THE
AFTERNOON. SEAS 7 FT. RAIN AND SNOW.
.TONIGHT...NW WIND 30 KT EXCEPT N 40 KT FROM THE SHUMAGIN ISLANDS
E. SEAS 10 FT.
.WED...SW WIND 30 KT. FROM THE SHUMAGIN ISLANDS E...NW WIND 35 KT
BECOMING W 20 KT IN THE AFTERNOON. SEAS 10 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT.
.THU...SW WIND 25 KT. SEAS 12 FT.
.FRI...W WIND 25 KT. SEAS 10 FT.
.SAT...NW WIND 30 KT. SEAS 10 FT.

$$

PKZ160-220115-
BRISTOL BAY-
357 AM AKDT TUE APR 21 2015

.TODAY...SE WIND 15 KT DIMINISHING TO 10 KT IN THE AFTERNOON. SEAS
4 FT.
.TONIGHT...NW WIND 20 KT. SEAS 3 FT.
.WED...NW WIND 20 KT. SEAS 4 FT.
.WED NIGHT...S WIND 25 KT. SEAS 4 FT.
.THU...SE WIND 20 KT. SEAS 5 FT.
.FRI...E WIND 15 KT. SEAS 4 FT.
.SAT...N WIND 20 KT. SEAS 4 FT.

$$

PKZ165-220115-
PORT HEIDEN TO CAPE SARICHEF-
357 AM AKDT TUE APR 21 2015

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...SW WIND 15 KT. SEAS 6 FT.
.TONIGHT...NW WIND 20 KT. SEAS 5 FT.
.WED...SW WIND 20 KT BECOMING S 30 KT IN THE AFTERNOON. FROM PORT
MOLLER E...S WIND 20 KT. SEAS 6 FT.
.WED NIGHT...S WIND 30 KT. SEAS 8 FT.
.THU...S WIND 25 KT. SEAS 9 FT.
.FRI...N WIND 25 KT. SEAS 7 FT.
.SAT...NW WIND 30 KT. SEAS 9 FT.

$$

PKZ170-220115-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...W WIND 20 KT. SEAS 7 FT.
.TONIGHT...W WIND 20 KT. SEAS 7 FT.
.WED...S WIND 35 KT. SEAS 7 FT BUILDING TO 11 FT IN THE AFTERNOON.
SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT.
.THU...SW WIND 25 KT. SEAS 12 FT.
.FRI...NW WIND 30 KT. SEAS 12 FT.
.SAT...NW WIND 35 KT. SEAS 13 FT.

$$

PKZ171-220115-
UNALASKA BAY-
357 AM AKDT TUE APR 21 2015

.TODAY...W WIND 10 KT BECOMING NW IN THE AFTERNOON. SEAS 2 FT
BUILDING TO 5 FT IN THE AFTERNOON.
.TONIGHT...W WIND 15 KT BECOMING SW AFTER MIDNIGHT. SEAS 2 FT.
.WED...S WIND 20 KT. SEAS 3 FT. SNOW AND RAIN.
.WED NIGHT...SW WIND 20 KT. SEAS 3 FT.
.THU...SW WIND 20 KT. SEAS 3 FT.
.FRI...NW WIND 20 KT. SEAS 7 FT.
.SAT...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ172-220115-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 25 KT. SEAS 5 FT.
.TONIGHT...NW WIND 25 KT. SEAS 6 FT.
.WED...S WIND 35 KT. SEAS 8 FT BUILDING TO 13 FT IN THE AFTERNOON.
SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 14 FT.
.THU...SW WIND 30 KT. SEAS 13 FT.
.FRI THROUGH SAT...NW WIND 30 KT. SEAS 12 FT.

$$

PKZ173-220115-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...W WIND 20 KT. SEAS 8 FT. SNOW SHOWERS.
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS 8
FT. RAIN AND SNOW.
.WED...S WIND 35 KT. SEAS 12 FT. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT. SEAS 12 FT.
.THU...SW WIND 30 KT. SEAS 14 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ174-220115-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 20 KT. SEAS 7 FT. SNOW SHOWERS.
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS 8
FT. SNOW.
.WED...S WIND 40 KT. SEAS 10 FT BUILDING TO 16 FT IN THE AFTERNOON.
SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 15 FT.
.THU...SW WIND 30 KT. SEAS 16 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ175-220115-
SEGUAM ISLAND TO ADAK BERING SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...NW WIND 25 KT. SEAS 9 FT. SNOW SHOWERS.
.TONIGHT...SW WIND 25 KT BECOMING S 35 KT AFTER MIDNIGHT. SEAS
10 FT. RAIN AND SNOW.
.WED...SW WIND 40 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
12 FT. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT. SEAS 14 FT.
.THU...W WIND 30 KT. SEAS 15 FT.
.FRI THROUGH SAT...W WIND 30 KT. SEAS 13 FT.

$$

PKZ176-220115-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
357 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...NW WIND 25 KT. SEAS 7 FT.
.TONIGHT...SW WIND 25 KT BECOMING S 40 KT AFTER MIDNIGHT. SEAS 6
FT BUILDING TO 12 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...SW WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
16 FT. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT. SEAS 17 FT.
.THU...W WIND 35 KT. SEAS 19 FT.
.FRI THROUGH SAT...W WIND 30 KT. SEAS 13 FT.

$$

PKZ177-220115-
ADAK TO KISKA-
357 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT...

.TODAY...W WIND 25 KT. SEAS 9 FT. PATCHY FOG.
.TONIGHT...SW WIND 40 KT. SEAS 10 FT BUILDING TO 16 FT AFTER
MIDNIGHT. RAIN AND SNOW.
.WED...W WIND 30 KT. SEAS 16 FT. RAIN AND SNOW SHOWERS.
.WED NIGHT...SW WIND 35 KT. SEAS 21 FT.
.THU...W WIND 35 KT. SEAS 21 FT.
.FRI...NW WIND 30 KT. SEAS 15 FT.
.SAT...SW WIND 25 KT. SEAS 9 FT.

$$

PKZ178-220115-
KISKA TO ATTU-
357 AM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW WIND 25 KT BECOMING S 35 KT IN THE AFTERNOON. SEAS
10 FT. PATCHY FOG. SNOW AND RAIN.
.TONIGHT...S WIND 40 KT. SEAS 12 FT IN THE EVENING BUILDING TO 17
FT. RAIN AND SNOW.
.WED...SW WIND 35 KT. SEAS 18 FT IN THE MORNING BUILDING TO 25
FT. RAIN AND SNOW.
.WED NIGHT...W WIND 40 KT. SEAS 24 FT.
.THU...NW WIND 35 KT. SEAS 21 FT.
.FRI...W WIND 25 KT. SEAS 14 FT.
.SAT...S WIND 25 KT. SEAS 13 FT.

$$

PKZ179-220115-
PRIBILOF ISLANDS NEAR SHORE WATERS-
357 AM AKDT TUE APR 21 2015

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG.
.TONIGHT...W WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.WED...S WIND 30 KT. SEAS 10 FT. PATCHY FOG. SNOW SHOWERS AND
RAIN.
.WED NIGHT...SW WIND 25 KT. SEAS 11 FT.
.THU...S WIND 20 KT. SEAS 10 FT.
.FRI THROUGH SAT...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ180-220115-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
357 AM AKDT TUE APR 21 2015

.TODAY...S WIND 15 KT BECOMING SW IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 5 FT. FREEZING SPRAY IN THE MORNING ALONG THE
ICE EDGE.
.TONIGHT...W WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 3 FT.
.WED...S WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT.
.WED NIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT.
.THU...SE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.
.FRI...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT.
.SAT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-220115-
NORTH AND WEST OF NUNIVAK ISLAND-
357 AM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY...

.TODAY...W WIND 15 KT.
.TONIGHT...SW WIND 15 KT.
.WED...S WIND 15 KT BECOMING SE 25 KT IN THE AFTERNOON.
.WED NIGHT...SE WIND 30 KT.
.THU...SE WIND 20 KT.
.FRI...NE WIND 15 KT.
.SAT...NW WIND 20 KT.

$$

PKZ185-220115-
SAINT MATTHEW ISLAND WATERS-
357 AM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY...

.TODAY...NW WIND 15 KT.
.TONIGHT...VARIABLE WIND 10 KT BECOMING SE 20 KT AFTER MIDNIGHT.
SNOW.
.WED...E OF SAINT MATTHEW ISLAND...SE WIND 15 KT INCREASING TO 30
KT IN THE AFTERNOON. W OF SAINT MATTHEW ISLAND...E WIND 30 KT.
SNOW AND RAIN.
.WED NIGHT...SE WIND 25 KT.
.THU...NE WIND 30 KT.
.FRI...N WIND 25 KT.
.SAT...NW WIND 20 KT.

$$

027 
FZAK52 PAFC 211600 AAA
CWFALU

COASTAL WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
800 AM AKDT TUE APR 21 2015

UPDATED ZONES 150 155 160 165 171 172

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.

PKZ199-220330-
800 AM AKDT TUE APR 21 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...A 998 MB NORTH PACIFIC
LOW WILL STRENGTHEN TO 979 MB 150 NM SOUTHEAST OF KODIAK TUE
NIGHT AND THEN TRACK TO THE EASTERN GULF. A 980 MB KAMCHATKA LOW
WILL MOVE TO 150 NM NORTHEAST OF SHEMYA AT 980 MB BY WED NIGHT.
THE ASSOCIATED WEATHER FRONT WILL CROSS THE WESTERN ALEUTIANS TUE
EVENING AND MOVE TO THE CENTRAL ALEUTIANS BY WED AFTERNOON.

$$

PKZ150-220330-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SE WIND 30 KT BECOMING NE 35 KT IN THE LATE AFTERNOON.
SEAS 8 FT. PATCHY FOG. RAIN AND SNOW.
.TONIGHT...N WIND 35 KT INCREASING TO NW 45 KT AFTER MIDNIGHT.
SEAS 10 FT BUILDING TO 15 FT AFTER MIDNIGHT. RAIN AND SNOW.
.WED...N WIND 45 KT BECOMING NW 25 KT IN THE AFTERNOON. SEAS
15 FT SUBSIDING TO 10 FT IN THE AFTERNOON. 
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT. 
.THU...S WIND 25 KT. SEAS 10 FT. 
.FRI...SE WIND 15 KT. SEAS 8 FT. 
.SAT...N WIND 25 KT. SEAS 8 FT.

$$

PKZ155-220330-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
800 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...VARIABLE WIND 15 KT BECOMING NW 25 KT IN THE AFTERNOON.
SEAS 7 FT. RAIN AND SNOW.
.TONIGHT...NW WIND 35 KT. SEAS 10 FT.
.WED...W WIND 15 KT BECOMING SW 25 KT IN THE AFTERNOON. FROM 
THE SHUMAGIN ISLANDS E...NW WIND 35 KT BECOMING W 20 KT IN THE
AFTERNOON. SEAS 10 FT.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT. 
.THU...SW WIND 25 KT. SEAS 12 FT. 
.FRI...W WIND 25 KT. SEAS 10 FT. 
.SAT...NW WIND 30 KT. SEAS 10 FT.

$$

PKZ160-220330-
BRISTOL BAY-
800 AM AKDT TUE APR 21 2015

.TODAY...SE WIND 15 KT SHIFTING TO N IN THE AFTERNOON. SEAS 4 FT.
.TONIGHT...NW WIND 20 KT. SEAS 4 FT.
.WED...NW WIND 20 KT. SEAS 4 FT. 
.WED NIGHT...S WIND 25 KT. SEAS 4 FT. 
.THU...SE WIND 20 KT. SEAS 5 FT. 
.FRI...E WIND 15 KT. SEAS 4 FT. 
.SAT...N WIND 20 KT. SEAS 4 FT.

$$

PKZ165-220330-
PORT HEIDEN TO CAPE SARICHEF-
800 AM AKDT TUE APR 21 2015

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT BECOMING NW 15 KT IN THE AFTERNOON.
SEAS 5 FT.
.TONIGHT...NW WIND 20 KT. SEAS 5 FT. 
.WED...W WIND 15 KT BECOMING S 30 KT IN THE AFTERNOON. FROM 
PORT MOLLER E...NW WIND 15 KT BECOMING S 20 KT IN THE AFTERNOON.
SEAS 6 FT.
.WED NIGHT...S WIND 30 KT. SEAS 8 FT. 
.THU...S WIND 25 KT. SEAS 9 FT. 
.FRI...N WIND 25 KT. SEAS 7 FT. 
.SAT...NW WIND 30 KT. SEAS 9 FT.

$$

PKZ170-220330-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 20 KT. SEAS 7 FT. 
.TONIGHT...W WIND 20 KT. SEAS 7 FT. 
.WED...S WIND 35 KT. SEAS 7 FT BUILDING TO 11 FT IN THE
AFTERNOON. SNOW AND RAIN. 
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT. 
.THU...SW WIND 25 KT. SEAS 12 FT. 
.FRI...NW WIND 30 KT. SEAS 12 FT. 
.SAT...NW WIND 35 KT. SEAS 13 FT.

$$

PKZ171-220330-
UNALASKA BAY-
800 AM AKDT TUE APR 21 2015

.TODAY...W WIND 10 KT BECOMING NW 20 KT IN THE AFTERNOON. 
SEAS 2 FT BUILDING TO 5 FT IN THE AFTERNOON.
.TONIGHT...W WIND 15 KT BECOMING SW AFTER MIDNIGHT. SEAS 2 FT. 
.WED...S WIND 20 KT. SEAS 3 FT. SNOW AND RAIN. 
.WED NIGHT...SW WIND 20 KT. SEAS 3 FT. 
.THU...SW WIND 20 KT. SEAS 3 FT. 
.FRI...NW WIND 20 KT. SEAS 7 FT. 
.SAT...NW WIND 25 KT. SEAS 10 FT.

$$

PKZ172-220330-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 20 KT. SEAS 5 FT.
.TONIGHT...NW WIND 25 KT. SEAS 6 FT. 
.WED...S WIND 35 KT. SEAS 8 FT BUILDING TO 13 FT IN THE
AFTERNOON. SNOW AND RAIN. 
.WED NIGHT...SW WIND 30 KT. SEAS 14 FT. 
.THU...SW WIND 30 KT. SEAS 13 FT. 
.FRI THROUGH SAT...NW WIND 30 KT. SEAS 12 FT.

$$

PKZ173-220330-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...W WIND 20 KT. SEAS 8 FT. SNOW SHOWERS. 
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. 
SEAS 8 FT. RAIN AND SNOW.
.WED...S WIND 35 KT. SEAS 12 FT. RAIN AND SNOW. 
.WED NIGHT...SW WIND 30 KT. SEAS 12 FT. 
.THU...SW WIND 30 KT. SEAS 14 FT. 
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ174-220330-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TODAY...NW WIND 20 KT. SEAS 7 FT. SNOW SHOWERS. 
.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS
8 FT. SNOW. 
.WED...S WIND 40 KT. SEAS 10 FT BUILDING TO 16 FT IN THE
AFTERNOON. SNOW AND RAIN. 
.WED NIGHT...SW WIND 30 KT. SEAS 15 FT. 
.THU...SW WIND 30 KT. SEAS 16 FT. 
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 14 FT.

$$

PKZ175-220330-
SEGUAM ISLAND TO ADAK BERING SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...NW WIND 25 KT. SEAS 9 FT. SNOW SHOWERS. 
.TONIGHT...SW WIND 25 KT BECOMING S 35 KT AFTER MIDNIGHT. SEAS
10 FT. RAIN AND SNOW. 
.WED...SW WIND 40 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
12 FT. RAIN AND SNOW. 
.WED NIGHT...SW WIND 30 KT. SEAS 14 FT. 
.THU...W WIND 30 KT. SEAS 15 FT. 
.FRI THROUGH SAT...W WIND 30 KT. SEAS 13 FT.

$$

PKZ176-220330-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
800 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...NW WIND 25 KT. SEAS 7 FT. 
.TONIGHT...SW WIND 25 KT BECOMING S 40 KT AFTER MIDNIGHT. SEAS
6 FT BUILDING TO 12 FT AFTER MIDNIGHT. RAIN AND SNOW. 
.WED...SW WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
16 FT. RAIN AND SNOW. 
.WED NIGHT...SW WIND 30 KT. SEAS 17 FT. 
.THU...W WIND 35 KT. SEAS 19 FT. 
.FRI THROUGH SAT...W WIND 30 KT. SEAS 13 FT.

$$

PKZ177-220330-
ADAK TO KISKA-
800 AM AKDT TUE APR 21 2015

...GALE WARNING TONIGHT...

.TODAY...W WIND 25 KT. SEAS 9 FT. PATCHY FOG. 
.TONIGHT...SW WIND 40 KT. SEAS 10 FT BUILDING TO 16 FT AFTER
MIDNIGHT. RAIN AND SNOW. 
.WED...W WIND 30 KT. SEAS 16 FT. RAIN AND SNOW SHOWERS. 
.WED NIGHT...SW WIND 35 KT. SEAS 21 FT. 
.THU...W WIND 35 KT. SEAS 21 FT. 
.FRI...NW WIND 30 KT. SEAS 15 FT. 
.SAT...SW WIND 25 KT. SEAS 9 FT.

$$

PKZ178-220330-
KISKA TO ATTU-
800 AM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW WIND 25 KT BECOMING S 35 KT IN THE AFTERNOON. SEAS
10 FT. PATCHY FOG. SNOW AND RAIN. 
.TONIGHT...S WIND 40 KT. SEAS 12 FT IN THE EVENING BUILDING TO
17 FT. RAIN AND SNOW. 
.WED...SW WIND 35 KT. SEAS 18 FT IN THE MORNING BUILDING TO
25 FT. RAIN AND SNOW. 
.WED NIGHT...W WIND 40 KT. SEAS 24 FT. 
.THU...NW WIND 35 KT. SEAS 21 FT. 
.FRI...W WIND 25 KT. SEAS 14 FT. 
.SAT...S WIND 25 KT. SEAS 13 FT.

$$

PKZ179-220330-
PRIBILOF ISLANDS NEAR SHORE WATERS-
800 AM AKDT TUE APR 21 2015

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...VARIABLE WIND 10 KT. SEAS 5 FT. PATCHY FOG. 
.TONIGHT...W WIND 20 KT. SEAS 5 FT. PATCHY FOG. 
.WED...S WIND 30 KT. SEAS 10 FT. PATCHY FOG. SNOW SHOWERS AND
RAIN. 
.WED NIGHT...SW WIND 25 KT. SEAS 11 FT. 
.THU...S WIND 20 KT. SEAS 10 FT. 
.FRI THROUGH SAT...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ180-220330-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
800 AM AKDT TUE APR 21 2015

.TODAY...S WIND 15 KT BECOMING SW IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 5 FT. FREEZING SPRAY IN THE MORNING ALONG THE ICE
EDGE. 
.TONIGHT...W WIND 10 KT INCREASING TO 15 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 3 FT. 
.WED...S WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. 
.WED NIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT. 
.THU...SE WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT. 
.FRI...NE WIND 15 KT. SEAS IN ICE FREE WATERS 4 FT. 
.SAT...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-220330-
NORTH AND WEST OF NUNIVAK ISLAND-
800 AM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY...

.TODAY...W WIND 15 KT. 
.TONIGHT...SW WIND 15 KT. 
.WED...S WIND 15 KT BECOMING SE 25 KT IN THE AFTERNOON. 
.WED NIGHT...SE WIND 30 KT. 
.THU...SE WIND 20 KT. 
.FRI...NE WIND 15 KT. 
.SAT...NW WIND 20 KT.

$$

PKZ185-220330-
SAINT MATTHEW ISLAND WATERS-
800 AM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY...

.TODAY...NW WIND 15 KT. 
.TONIGHT...VARIABLE WIND 10 KT BECOMING SE 20 KT AFTER MIDNIGHT.
SNOW. 
.WED...E OF SAINT MATTHEW ISLAND...SE WIND 15 KT INCREASING TO
30 KT IN THE AFTERNOON. W OF SAINT MATTHEW ISLAND...E WIND 30 KT.
SNOW AND RAIN. 
.WED NIGHT...SE WIND 25 KT. 
.THU...NE WIND 30 KT. 
.FRI...N WIND 25 KT. 
.SAT...NW WIND 20 KT.

$$

048 
FZAK52 PAFC 212258
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
258 PM AKDT TUE APR 21 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.

PKZ199-221200-
258 PM AKDT TUE APR 21 2015
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 988 MB LOW 225 NM SOUTH OF SITKINAK WILL STRENGTHEN TO 979 MB
140 NM SOUTHEAST OF SITKINAK TUE NIGHT AND THEN WEAKEN AS IT
EXITS TO THE NORTHEAST PACIFIC WED THROUGH WED NIGHT. A 975 MB
LOW 335 NM NORTHWEST OF SHEMYA WILL TRACK TO 140 NM NORTH OF ADAK
THU AFTERNOON AT 985 MB. AN ASSOCIATED FRONT OVER THE WESTERN
BERING WILL WEAKEN AS IT TRACKS TO THE NORTHERN TO EASTERN 
BERING WED NIGHT.

$$

PKZ150-221200-
SOUTH OF THE AK PENINSULA SITKINAK TO CASTLE CAPE-
258 PM AKDT TUE APR 21 2015

...STORM WARNING TONIGHT...

.TONIGHT...NE WIND 35 KT BECOMING N 50 KT AFTER MIDNIGHT. SEAS
15 FT. RAIN AND SNOW.
.WED...N WIND 45 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
15 FT.
.WED NIGHT...SW WIND 20 KT. SEAS 9 FT. RAIN AND SNOW.
.THU AND THU NIGHT...S WIND 25 KT. SEAS 10 FT.
.FRI...SE WIND 30 KT. SEAS 9 FT.
.SAT...NE WIND 35 KT. SEAS 14 FT.
.SUN...NW WIND 25 KT. SEAS 12 FT.

$$

PKZ155-221200-
SOUTH OF THE AK PENINSULA CASTLE CAPE TO CAPE SARICHEF-
258 PM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NE WIND 25 KT BECOMING N WIND 35 KT BY LATE EVENING...EXCEPT
N WIND 30 KT FROM THE SHUMAGIN ISLANDS W. SEAS 7 FT BUILDING TO 15
FT BY MIDNIGHT.
.WED...N WIND 35 KT BECOMING W 20 KT IN THE AFTERNOON. SEAS 15 FT
SUBSIDING TO 8 FT IN THE AFTERNOON.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN AND SNOW.
.THU AND THU NIGHT...S WIND 25 KT. SEAS 11 FT.
.FRI...W WIND 25 KT. SEAS 10 FT.
.SAT...N WIND 35 KT. SEAS 14 FT.
.SUN...NW WIND 30 KT. SEAS 12 FT.

$$

PKZ160-221200-
BRISTOL BAY-
258 PM AKDT TUE APR 21 2015

...SMALL CRAFT ADVISORY WEDNESDAY NIGHT...

.TONIGHT...E WIND 15 KT. SEAS 2 FT.
.WED...N WIND 15 KT BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
.WED NIGHT...SE WIND 25 KT. SEAS 3 FT. RAIN AND SNOW.
.THU...SE WIND 25 KT. SEAS 4 FT.
.THU NIGHT...SE WIND 20 KT. SEAS 5 FT.
.FRI...E WIND 20 KT. SEAS 5 FT.
.SAT...N WIND 25 KT. SEAS 4 FT.
.SUN...NW WIND 25 KT. SEAS 5 FT.

$$

PKZ165-221200-
PORT HEIDEN TO CAPE SARICHEF-
258 PM AKDT TUE APR 21 2015

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

.TONIGHT...NW WIND 20 KT. SEAS 4 FT.
.WED...SW WIND 20 KT BECOMING S 30 KT IN THE AFTERNOON. FROM PORT
MOLLER E...S WIND 20 KT. SEAS 6 FT.
.WED NIGHT...S WIND 30 KT. SEAS 7 FT. RAIN AND SNOW.
.THU...S WIND 25 KT. SEAS 7 FT.
.THU NIGHT...S WIND 20 KT. SEAS 8 FT.
.FRI...NE WIND 20 KT. SEAS 8 FT.
.SAT THROUGH SUN...NW WIND 30 KT. SEAS 9 FT.

$$

PKZ170-221200-
CAPE SARICHEF TO NIKOLSKI BERING SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TONIGHT...W WIND 20 KT. SEAS 6 FT.
.WED...S WIND 35 KT. SEAS 11 FT. SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 10 FT. RAIN AND SNOW.
.THU AND THU NIGHT...SW WIND 25 KT. SEAS 11 FT.
.FRI THROUGH SAT...NW WIND 30 KT. SEAS 12 FT.
.SUN...NW WIND 25 KT. SEAS 8 FT.

$$

PKZ171-221200-
UNALASKA BAY-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TONIGHT...W WIND 15 KT BECOMING SW AFTER MIDNIGHT. SEAS 4 FT.
.WED...SW WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS 8
FT. SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS
8 FT. RAIN AND SNOW.
.THU...S WIND 20 KT. SEAS 7 FT.
.THU NIGHT...SW WIND 15 KT. SEAS 5 FT.
.FRI...NW WIND 20 KT. SEAS 4 FT.
.SAT...NW WIND 25 KT. SEAS 7 FT.
.SUN...NW WIND 20 KT. SEAS 5 FT.

$$

PKZ172-221200-
CAPE SARICHEF TO NIKOLSKI PACIFIC SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...W WIND 20 KT. SEAS 6 FT.
.WED...SW WIND 40 KT. SEAS 11 FT. SNOW AND RAIN.
.WED NIGHT...SW WIND 35 KT. SEAS 13 FT. RAIN AND SNOW.
.THU...SW WIND 30 KT. SEAS 12 FT.
.THU NIGHT...SW WIND 25 KT. SEAS 12 FT.
.FRI THROUGH SUN...NW WIND 30 KT. SEAS 12 FT.

$$

PKZ173-221200-
NIKOLSKI TO SEGUAM ISLAND BERING SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS 8
FT. PATCHY FOG. RAIN AND SNOW.
.WED...SW WIND 35 KT. SEAS 12 FT. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT. SEAS 11 FT. RAIN AND SNOW.
.THU...SW WIND 30 KT. SEAS 12 FT.
.THU NIGHT...W WIND 25 KT. SEAS 12 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 15 FT.
.SUN...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ174-221200-
NIKOLSKI TO SEGUAM ISLAND PACIFIC SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TONIGHT...W WIND 20 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS 8
FT. PATCHY FOG. SNOW.
.WED...SW WIND 40 KT. SEAS 15 FT. SNOW AND RAIN.
.WED NIGHT...SW WIND 30 KT. SEAS 15 FT. RAIN AND SNOW.
.THU AND THU NIGHT...W WIND 30 KT. SEAS 15 FT.
.FRI THROUGH SAT...NW WIND 35 KT. SEAS 15 FT.
.SUN...W WIND 25 KT. SEAS 8 FT.

$$

PKZ175-221200-
SEGUAM ISLAND TO ADAK BERING SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...SW WIND 25 KT BECOMING SW 40 KT AFTER MIDNIGHT. SEAS
10 FT. PATCHY FOG. RAIN AND SNOW.
.WED...SW WIND 35 KT. SEAS 12 FT. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT. SEAS 13 FT. RAIN AND SNOW.
.THU...SW WIND 35 KT. SEAS 13 FT.
.THU NIGHT...NW WIND 30 KT. SEAS 12 FT.
.FRI...NW WIND 35 KT. SEAS 15 FT.
.SAT...NW WIND 30 KT. SEAS 12 FT.
.SUN...SW WIND 20 KT. SEAS 6 FT.

$$

PKZ176-221200-
SEGUAM ISLAND TO ADAK PACIFIC SIDE-
258 PM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW WIND 25 KT INCREASING TO 40 KT AFTER MIDNIGHT. SEAS
6 FT BUILDING TO 14 FT AFTER MIDNIGHT. PATCHY FOG. RAIN AND SNOW.
.WED...SW WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
16 FT. PATCHY FOG. RAIN AND SNOW.
.WED NIGHT...SW WIND 30 KT INCREASING TO 40 KT AFTER MIDNIGHT. SEAS
15 FT.
.THU...SW WIND 40 KT. SEAS 18 FT.
.THU NIGHT...W WIND 30 KT. SEAS 18 FT.
.FRI...NW WIND 35 KT. SEAS 15 FT.
.SAT...NW WIND 30 KT. SEAS 12 FT.
.SUN...SW WIND 20 KT. SEAS 8 FT.

$$

PKZ177-221200-
ADAK TO KISKA-
258 PM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW WIND 45 KT. SEAS 15 FT. PATCHY FOG. RAIN AND SNOW.
.WED...SW WIND 35 KT. SEAS 16 FT. PATCHY FOG. RAIN AND SNOW
SHOWERS.
.WED NIGHT...SW WIND 40 KT. SEAS 19 FT. RAIN AND SNOW.
.THU...W WIND 40 KT. SEAS 19 FT.
.THU NIGHT...NW WIND 35 KT. SEAS 17 FT.
.FRI...NW WIND 30 KT. SEAS 16 FT.
.SAT THROUGH SUN...SW WIND 25 KT. SEAS 10 FT.

$$

PKZ178-221200-
KISKA TO ATTU-
258 PM AKDT TUE APR 21 2015

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW WIND 40 KT. SEAS 16 FT. PATCHY FOG. RAIN AND SNOW.
.WED...SW WIND 45 KT. SEAS 22 FT. PATCHY FOG. RAIN AND SNOW.
.WED NIGHT...SW WIND 45 KT. SEAS 23 FT. RAIN AND SNOW.
.THU...NW WIND 40 KT. SEAS 21 FT.
.THU NIGHT...NW WIND 30 KT. SEAS 17 FT.
.FRI...W WIND 30 KT. SEAS 15 FT.
.SAT...S WIND 30 KT. SEAS 10 FT.
.SUN...SW WIND 25 KT. SEAS 10 FT.

$$

PKZ179-221200-
PRIBILOF ISLANDS NEAR SHORE WATERS-
258 PM AKDT TUE APR 21 2015

...GALE WARNING WEDNESDAY...

.TONIGHT...SW WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.WED...S WIND 35 KT. SEAS 10 FT. PATCHY FOG. SNOW SHOWERS AND RAIN.
.WED NIGHT...SW WIND 30 KT BECOMING S 20 KT AFTER MIDNIGHT. SEAS
11 FT. PATCHY FOG. RAIN AND SNOW.
.THU...S WIND 20 KT. SEAS 10 FT.
.THU NIGHT...E WIND 15 KT. SEAS 9 FT.
.FRI...N WIND 20 KT. SEAS 9 FT.
.SAT...NW WIND 25 KT. SEAS 8 FT.
.SUN...N WIND 15 KT. SEAS 5 FT.

$$

PKZ180-221200-
KUSKOKWIM DELTA AND ETOLIN STRAIT-
258 PM AKDT TUE APR 21 2015

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

.TONIGHT...SW WIND 10 KT BECOMING W AFTER MIDNIGHT. SEAS IN ICE FREE
WATERS 2 FT.
.WED...SW WIND 15 KT BECOMING S 25 KT IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 3 FT.
.WED NIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT. SNOW AND
RAIN.
.THU...S WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.THU NIGHT...SE WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.FRI...E WIND 15 KT. SEAS IN ICE FREE WATERS 5 FT.
.SAT...N WIND 25 KT. SEAS IN ICE FREE WATERS 4 FT.
.SUN...NW WIND 30 KT. SEAS IN ICE FREE WATERS 5 FT.

$$

PKZ181-221200-
NORTH AND WEST OF NUNIVAK ISLAND-
258 PM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT.
.WED...S WIND 15 KT BECOMING SE 25 KT IN THE AFTERNOON.
.WED NIGHT...SE WIND 30 KT. SNOW.
.THU...S WIND 20 KT.
.THU NIGHT...E WIND 20 KT.
.FRI...VARIABLE WIND 10 KT.
.SAT THROUGH SUN...NW WIND 20 KT.

$$

PKZ185-221200-
SAINT MATTHEW ISLAND WATERS-
258 PM AKDT TUE APR 21 2015

...BRISK WIND ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...E OF SAINT MATTHEW ISLAND...VARIABLE WIND 10 KT. W OF
SAINT MATTHEW ISLAND...VARIABLE WIND 10 KT BECOMING SE 20 KT AFTER
MIDNIGHT. SNOW.
.WED...SE WIND 30 KT. SNOW AND RAIN.
.WED NIGHT...SE WIND 30 KT. SNOW AND RAIN.
.THU...SE WIND 20 KT.
.THU NIGHT...NE WIND 25 KT.
.FRI THROUGH SAT...NW WIND 25 KT.
.SUN...SE WIND 20 KT.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
507 AM AKDT MON APR 20 2015

.ANALYSIS AND UPPER LEVELS...
AN UPPER LEVEL CLOSED STACKED LOW IS POSITIONED NEAR NUNIVAK
ISLAND WITH THE SURFACE LOW BEING REFLECTED JUST WEST OF THE
AREA. THIS LOW HAS SEVERAL UPSTREAM SHORTWAVE TROUGHS AROUND THIS
SYNOPTIC FEATURE. AN ASSOCIATED NEGATIVE TILTED TROUGH EXTENDS
THROUGH THE SOUTHWEST ALASKA REGION INTO KODIAK ISLAND AND THE
SOUTHWESTERN GULF. THE EASTERN GULF HAS A 100 KNOT SOUTHERLY JET
STREAM POSITIONED THROUGH THE NORTHERN GULF EXTENDING THROUGH THE
EASTERN COPPER RIVER BASIN. THE RADAR IMAGERY IS REFLECTING
NUMEROUS RAIN SHOWERS IN THE NORTHERN GULF...PRINCE WILLIAM
SOUND...EASTERN KENAI PENINSULA AND THROUGH COOK INLET INTO THE
LOWER SUSITNA VALLEY. THE SURFACE TEMPERATURES FOR THE NORTHERN
COASTAL AREAS ARE ALL IN THE UPPER 30S TO LOWER 40S. ASCAT
SCATTEROMETER WIND IMAGERY IS SHOWING THE GULF WITH 20 KNOT
SOUTHERLY FLOW AND NORTHWESTERLY FLOW OVER THE CHIRIKOF ISLANDS.

OVER THE BERING SEA AND THE ALEUTIANS REGION...THERE IS A
NORTHERLY 90 KNOT JET STREAM POSITION OVER THE WESTERN BERING.
THIS JET STREAM TRANSITIONS TO A ZONAL FLOW WITH A 110 KNOT JET
STREAM SOUTH OF THE CENTRAL TO EASTERN ALEUTIANS. THE COLD AIR ON
THE BACKSIDE OF THE UPPER LEVEL LOW IS PRODUCING STRONG GUSTY WEST
TO NORTHWESTERLY WINDS. THIS FEATURE IS ACCOMPANIED BY NUMEROUS
SNOW SHOWERS IN THE BERING SEA AND ALONG THE ALEUTIAN CHAIN.

&&

.MODEL DISCUSSION...
ALL MODELS REMAIN IN GOOD AGREEMENT WITH THE SHORTWAVE TROUGH
MOVING INTO THE WESTERN GULF AND A WEAK RIDGE OVER THE ALASKA
PENINSULA EXTENDING INTO THE ALEUTIAN RANGE THIS MORNING. ON THE
BERING SIDE THE MODELS ARE IN DECENT AGREEMENT WITH THE SURFACE
LOW OVER SAINT MATTHEW ISLAND AND AN ASSOCIATED TROUGH EXTENDING
ALONG THE SOUTHWEST ALASKA COASTLINE THIS MORNING. BY TUESDAY
MORNING AN AMPLIFIED RIDGE BUILDS INTO THE GULF AND SOUTHCENTRAL.
THE FORECAST CONFIDENCE IS AVERAGE WITH SOME UNCERTAINTY WITH THE
TROUGH PUSHING THROUGH SOUTHCENTRAL AND THE AMOUNT OF SNOWFALL THE
ANCHORAGE BOWL WILL RECEIVE TODAY. THE NAM WAS THE PREFERRED
MODEL OF CHOICE FOR SOUTHCENTRAL. ACROSS SOUTHWEST ALASKA...THE
GEM-REGIONAL WAS PREFERRED DUE TO BETTER HANDLING OF THE COLD AIR
ON THE BACKSIDE OF THE LOW IN THE NORTHERN BERING SEA.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
THE ATMOSPHERE OVER SOUTHCENTRAL REMAINED VERY UNSTABLE OVERNIGHT
AS THERE WERE NUMEROUS RAIN AND SNOW SHOWERS OVER THE AREA AND
EVEN SOME LIGHTNING STRIKES DETECTED IN THE PRINCE WILLIAM SOUND
REGION AS WELL AS IN THE NORTHWEST SUSITNA VALLEY NEAR THE HIGHER
PEAKS OF THE ALASKA RANGE. A COLD FRONT PUSHING INTO THE REGION
FROM THE SOUTHWEST WILL TURN PRECIPITATION TO ALL SNOW IN THE COOK
INLET AND SUSITNA VALLEY REGIONS TODAY. TEMPERATURES WILL BE AT
THEIR HIGHEST DURING THE EARLY MORNING OVER MUCH OF THE AREA FROM
THE KENAI PENINSULA NORTHWARD DUE TO THIS FRONT. THE ATMOSPHERE
BEHIND THIS FRONT WILL BE COLD ENOUGH FOR SNOW SO EVEN IF IT WARMS
INTO THE 40S THE TEMPERATURE WILL DROP RAPIDLY WHEN A SNOW SHOWER
MOVES OVERHEAD. THOSE TWO REASONS ARE WHY MOST AREAS WILL SEE
HIGHS WELL ABOVE FREEZING YET STILL HAVE SNOW AS THE
PRECIPITATION TYPE.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 THROUGH 3)...
DISTURBANCES WRAPPING AROUND THE MAIN CLOSED LOW CENTER OFF OF
NUNIVAK ISLAND WILL SUPPORT ANOTHER ROUND OF SNOW SHOWERS OVER
MOST OF SOUTHWEST TODAY AND TONIGHT. THERE IS ENOUGH INSTABILITY
IN THE ATMOSPHERE TO SUPPORT ISOLATED THUNDERSTORMS ACROSS
PORTIONS OF THE BRISTOL BAY AND THE LOWER KUSKOKWIM VALLEY. SNOW
SHOWERS...REGION WIDE...MAY BECOME INTENSE AT TIMES WITH HEAVY
SNOW SQUALLS AND BLOWING SNOW...AND WILL PERSIST INTO MONDAY
NIGHT. FOR THIS REASON...A WINTER WEATHER ADVISORY WILL BE ISSUED
FOR THE WESTERN CAPES...THE AREA WHERE THE STRONGEST WINDS AND
POTENTIAL HEAVIEST SNOWFALL WILL BE. ON TUESDAY...THE ATMOSPHERE
WILL SLOWLY STABILIZE...WITH SNOW SHOWERS BECOMING LESS WIDESPREAD
AND INTENSE...ALTHOUGH ISOLATED INTENSE SHOWERS WILL STILL BE
POSSIBLE DURING THE AFTERNOON...ESPECIALLY ACROSS THE BRISTOL BAY
AND KUSKOKWIM DELTA REGIONS.

SHOWERS WILL BEGIN TO DIMINISH TUESDAY EVENING ALTHOUGH SNOW
THREATS WILL REMAIN ACROSS THE BRISTOL BAY AND LOWER KUSKOKWIM
DELTA AS AN ELONGATED FRONTAL ZONE DEVELOPS INTO WEDNESDAY. THERE
IS MUCH UNCERTAINTY WITH THE EXACT PLACEMENT OF THIS FRONT...BUT
IT IS EXPECTED TO BE A RATHER NARROW ZONE OF POTENTIAL
ACCUMULATING SNOW.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 THROUGH 3)...
DISTURBANCES WRAPPING AROUND A PARENT LOW NEAR NUNIVAK ISLAND
WILL KEEP THE CENTRAL AND EASTERN BERING SEA/ALEUTIANS/PRIBILOF
ISLANDS UNDER THE THREAT OF SNOW SHOWERS AND SQUALLS INTO MONDAY
NIGHT BEFORE SHOWERS SLOWLY DIMINISH. A FAST MOVING WARM FRONT
WILL TRACK FROM THE WESTERN ALEUTIANS TUESDAY AFTERNOON AND REACH
THE EASTERN ALEUTIANS BY WEDNESDAY AFTERNOON...BRINGING LOW END
GALE FORCE WINDS AND RAIN AND SNOW TO THE REGION.

&&

.LONG TERM FORECAST (WEDNESDAY THROUGH SUNDAY)...

THE LONG TERM FORECAST WILL BE HIGHLY DEPENDENT UPON SOME HIGH
AMPLITUDE FEATURES EXTENDING FROM KAMCHATKA INTO THE GULF OF
ALASKA. ON WEDNESDAY...TWO AREA OF LOW PRESSURES...ONE OVER THE
GULF OF ALASKA AND THE OTHER OVER THE WESTERN BERING SEA...WILL
BOTH BRING GALE FORCE WINDS TO THOSE LOCATIONS. THE LOW OVER THE
SOUTHERN GULF OF ALASKA WILL BE QUICK TO DISSIPATE AS THE LOW OVER
THE WESTERN BERING SEA BARRELS EASTWARD AND ABSORBS THE REMNANTS
OF THE GULF LOW ON THURSDAY. MODEL AGREEMENT CONTINUES TO INCREASE
WITH THESE TWO LOWS ALTHOUGH MODELS HAVE SPED THE SYSTEMS UP BY
ABOUT 12 HOURS DUE TO A SLIGHTLY LESS AMPLIFIED PATTERN. A JET
STREAK ON FRIDAY WILL HELP TO AMPLIFY THE LONGWAVE TROUGHING
DEVELOPING AS THE INITIAL LOW OVER KAMCHATKA ELONGATES AND GETS
TRAPPED ON THE EAST SIDE BY A BUILDING PACIFIC NORTH AMERICAN
RIDGE. PREVIOUS MODEL RUNS HINTED AT THIS RIDGE NOSING ACROSS
ALASKA BUT NOW IT LOOKS LIKE IT WILL STAY EAST OF ALASKA DUE TO
THE TRACK OF THE UPPER LEVEL LOW. A SECOND KAMCHATKA LOW WILL PUSH
OFF THE PENINSULA ON SATURDAY AND TAKE A SIMILAR PATH TO THE ONE
OBSERVED MIDWEEK. OVERALL...THE SYNOPTIC PATTERN DOES NOT LOOK TO
CHANGE MUCH IN THE COMING 7 TO 10 DAYS AS THE JET STREAM CONTINUES
TO STAY OVER THE NORTH PACIFIC.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...WINTER WEATHER ADVISORY 161.
MARINE...GALE 165 178.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...PD
SOUTHCENTRAL ALASKA...EZ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JRA
LONG TERM...MC