Brisk Wind Advisory 33, NWS Anchorage, AK

623 
FZAK52 PAFC 201546
CWFALU

COASTAL WATERS FORECAST...UPDATE
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
730 AM AKDT WED APR 20 2011

UPDATE TO ZONES 160 AND 180

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.

PKZ199-210300-
400 AM AKDT WED APR 20 2011
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

HIGH PRESSURE PERSISTS OVER THE NORTHERN BERING THROUGH WED NIGHT. A
985 MB LOW 460 NM SOUTH OF DUTCH HARBOR MOVES TO 220 NM SOUTH OF
DUTCH HARBOR AT 983 MB THURSDAY NIGHT. 

$$

PKZ150-210300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SW WIND 15 KT. SEAS 6 FT. 
.TONIGHT...S WIND 20 KT. SEAS 6 FT. 
.THU...SE WIND 25 KT. SEAS 7 FT. 
.THU NIGHT AND FRI...SE WIND 30 KT. SEAS 12 FT. 
.SAT...NE WIND 15 KT. SEAS 9 FT. 
.SUN...NW WIND 25 KT. SEAS 11 FT.  

$$

PKZ155-210300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 AM AKDT WED APR 20 2011

...GALE WARNING THURSDAY...

.TODAY...SE WIND 15 KT. SEAS 8 FT. 
.TONIGHT...E WIND 25 KT. SEAS 6 FT. 
.THU...E WIND 35 KT. SEAS 10 FT. RAIN.
.THU NIGHT...E WIND 30 KT. SEAS 11 FT. 
.FRI...E WIND 20 KT. SEAS 11 FT. 
.SAT AND SUN...N WIND 25 KT. SEAS 8 FT. 

$$

PKZ160-210300-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
730 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...W WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. AREAS OF DENSE
FOG.  
.TONIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.THU...NE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 4 FT. FREEZING SPRAY. 
.THU NIGHT AND FRI...NE WIND 35 KT. SEAS IN ICE FREE WATERS 6 FT. 
.SAT AND SUN...N WIND 20 KT. SEAS IN ICE FREE WATERS 3 FT. 

$$

PKZ165-210300-
PORT HEIDEN TO CAPE SARICHEF
400 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SE WIND 15 KT. SEAS 3 FT. 
.TONIGHT...E WIND 15 KT. SEAS 4 FT. 
.THU...NE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS 7 FT.
.THU NIGHT AND FRI...NE WIND 35 KT. SEAS 10 FT. 
.SAT AND SUN...N WIND 25 KT. SEAS 9 FT. 

$$

PKZ180-210300-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
730 AM AKDT WED APR 20 2011

.TODAY...N WIND 10 KT. AREAS OF DENSE FOG THIS MORNING.
.TONIGHT...N WIND 15 KT. 
.THU...NE WIND 20 KT. 
.THU NIGHT...NE WIND 25 KT. 
.FRI AND SAT...N WIND 30 KT. 
.SUN...NW WIND 15 KT.  

$$

PKZ170-210300-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 AM AKDT WED APR 20 2011

...GALE WARNING THROUGH THURSDAY...

.TODAY...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
8 FT. 
.TONIGHT...E WIND 35 KT. SEAS 10 FT. 
.THU...NE WIND 40 KT. SEAS 13 FT. 
.THU NIGHT AND FRI...NE WIND 35 KT. SEAS 12 FT. 
.SAT AND SUN...N WIND 30 KT. SEAS 13 FT. 

$$

PKZ171-210300-
UNALASKA BAY
400 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...E WIND 20 KT. SEAS 2 FT. 
.TONIGHT...E WIND 25 KT. SEAS 4 FT. 
.THU...NE WIND 20 KT. SEAS 6 FT. 
.THU NIGHT AND FRI...NE WIND 25 KT. SEAS 7 FT. 
.SAT AND SUN...N WIND 20 KT. SEAS 7 FT. 

$$

PKZ172-210300-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 AM AKDT WED APR 20 2011

...GALE WARNING THROUGH THURSDAY...

.TODAY...E WIND 30 KT BECOMING NE 40 KT IN THE AFTERNOON. SEAS
12 FT. 
.TONIGHT...NE WIND 35 KT. SEAS 14 FT. RAIN.
.THU...NE WIND 35 KT. SEAS 14 FT. 
.THU NIGHT...NE WIND 30 KT. SEAS 12 FT. 
.FRI AND SAT...N WIND 30 KT. SEAS 14 FT. 
.SUN...W WIND 25 KT. SEAS 10 FT.  

$$

PKZ175-210300-
WESTERN ALEUTIANS ADAK TO KISKA
400 AM AKDT WED APR 20 2011

...GALE WARNING THURSDAY...

.TODAY...NE WIND 25 KT. SEAS 10 FT. 
.TONIGHT...NE WIND 30 KT. SEAS 11 FT. RAIN AND SNOW. 
.THU...NE WIND 35 KT. SEAS 12 FT. 
.THU NIGHT AND FRI...N WIND 25 KT. SEAS 11 FT. 
.SAT...NW WIND 20 KT. SEAS 10 FT. 
.SUN...W WIND 25 KT. SEAS 9 FT.  

$$

PKZ176-210300-
WESTERN ALEUTIANS KISKA TO ATTU
400 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NE WIND 25 KT. SEAS 11 FT. 
.TONIGHT AND THU...NE WIND 30 KT. SEAS 11 FT. 
.THU NIGHT...NE WIND 25 KT. SEAS 12 FT. 
.FRI...NE WIND 20 KT. SEAS 11 FT. 
.SAT AND SUN...NW WIND 20 KT. SEAS 8 FT. 

$$

PKZ185-210300-
ST MATTHEW ISLAND WATERS
400 AM AKDT WED APR 20 2011

...BRISK WIND ADVISORY THURSDAY...

.TODAY...NE WIND 15 KT. 
.TONIGHT...NE WIND 20 KT. 
.THU...NE WIND 25 KT.
.THU NIGHT...NE WIND 25 KT. 
.FRI THROUGH SUN...N WIND 25 KT. 

$$

PKZ179-210300-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 AM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...E WIND 20 KT. SEAS 4 FT. FREEZING SPRAY. 
.TONIGHT...NE WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.THU...NE WIND 30 KT. SEAS 8 FT. FREEZING SPRAY. 
.THU NIGHT...NE WIND 30 KT. SEAS 9 FT. 
.FRI AND SAT...N WIND 35 KT. SEAS 10 FT. 
.SUN...W WIND 15 KT. SEAS 8 FT.  

$$

359 
FZAK52 PAFC 202353
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKDT WED APR 20 2011

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.

PKZ199-211500-
400 PM AKDT WED APR 20 2011
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
HIGH PRESSURE PERSISTS OVER THE NORTHERN BERING THROUGH WED NIGHT. A
985 MB LOW 460 NM SOUTH OF DUTCH HARBOR MOVES TO 220 NM SOUTH OF
DUTCH HARBOR AT 983 MB THURSDAY NIGHT. 
$$

PKZ150-211500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 PM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S WIND 15 KT. SEAS 6 FT. 
.THU...SE WIND 25 KT. SEAS 7 FT. RAIN.
.THU NIGHT...E WIND 25 KT. SEAS 12 FT. RAIN.
.FRI...SE WIND 25 KT. SEAS 11 FT. 
.FRI NIGHT...E WIND 15 KT. SEAS 11 FT. 
.SAT...NE WIND 15 KT. SEAS 8 FT. 
.SUN...NW WIND 25 KT. SEAS 11 FT. 
.MON...W WIND 25 KT. SEAS 9 FT.  

$$

PKZ155-211500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 PM AKDT WED APR 20 2011

...GALE WARNING THURSDAY...

.TONIGHT...E WIND 25 KT EXCEPT SE 15 KT FROM THE SHUMAGIN ISLANDS E.
SEAS 7 FT. 
.THU...E WIND 35 KT. SEAS 10 FT. RAIN.
.THU NIGHT...E WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS
11 FT. 
.FRI AND FRI NIGHT...NE WIND 15 KT. SEAS 11 FT. 
.SAT...N WIND 25 KT. SEAS 8 FT. 
.SUN...NW WIND 30 KT. SEAS 9 FT. 
.MON...W WIND 20 KT. SEAS 8 FT.  

$$

PKZ160-211500-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 PM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...NW WIND 10 KT. SEAS IN ICE FREE WATERS 2 FT. 
.THU...NE WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.
.THU NIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT. FREEZING
SPRAY. 
.FRI...NE WIND 30 KT. SEAS IN ICE FREE WATERS 7 FT. 
.FRI NIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. 
.SAT...N WIND 25 KT. SEAS IN ICE FREE WATERS 3 FT. 
.SUN...NW WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. 
.MON...W WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.  

$$

PKZ165-211500-
PORT HEIDEN TO CAPE SARICHEF
400 PM AKDT WED APR 20 2011

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E WIND 20 KT. SEAS 4 FT. 
.THU...NE WIND 30 KT. SEAS 7 FT. 
.THU NIGHT...NE WIND 35 KT. SEAS 10 FT. 
.FRI...NE WIND 35 KT. SEAS 10 FT. 
.FRI NIGHT...N WIND 25 KT. SEAS 6 FT. 
.SAT AND SUN...NW WIND 25 KT. SEAS 9 FT. 
.MON...SW WIND 15 KT. SEAS 5 FT.  

$$

PKZ180-211500-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 PM AKDT WED APR 20 2011

...BRISK WIND ADVISORY THURSDAY NIGHT...

.TONIGHT...N WIND 15 KT. 
.THU...NE WIND 20 KT. 
.THU NIGHT...N WIND 25 KT. 
.FRI AND FRI NIGHT...N WIND 30 KT. 
.SAT...NW WIND 25 KT. 
.SUN...W WIND 20 KT. 
.MON...NW WIND 10 KT.  

$$

PKZ170-211500-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 PM AKDT WED APR 20 2011

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...E WIND 35 KT. SEAS 11 FT. 
.THU AND THU NIGHT...NE WIND 35 KT. SEAS 13 FT. 
.FRI AND FRI NIGHT...N WIND 35 KT. SEAS 13 FT. 
.SAT...NW WIND 30 KT. SEAS 12 FT. 
.SUN...W WIND 25 KT. SEAS 11 FT. 
.MON...SW WIND 20 KT. SEAS 7 FT.  

$$

PKZ171-211500-
UNALASKA BAY
400 PM AKDT WED APR 20 2011

.TONIGHT...E WIND 20 KT. SEAS 3 FT. 
.THU AND THU NIGHT...NE WIND 20 KT. SEAS 6 FT. RAIN.
.FRI THROUGH SAT...N WIND 25 KT. SEAS 8 FT. 
.SUN...NW WIND 15 KT. SEAS 5 FT. 
.MON...SW WIND 15 KT. SEAS 2 FT.  

$$

PKZ172-211500-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 PM AKDT WED APR 20 2011

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...NE WIND 35 KT. SEAS 13 FT. 
.THU AND THU NIGHT...NE WIND 35 KT. SEAS 13 FT. 
.FRI AND FRI NIGHT...N WIND 30 KT. SEAS 13 FT. 
.SAT...NW WIND 25 KT. SEAS 13 FT. 
.SUN...W WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 30 KT. SEAS 12 FT.  

$$

PKZ175-211500-
WESTERN ALEUTIANS ADAK TO KISKA
400 PM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...NE WIND 30 KT. SEAS 11 FT. 
.THU AND THU NIGHT...NE WIND 30 KT. SEAS 11 FT. 
.FRI AND FRI NIGHT...NE WIND 20 KT. SEAS 10 FT. 
.SAT...NW WIND 20 KT. SEAS 10 FT. 
.SUN AND MON...NW WIND 25 KT. SEAS 10 FT. 

$$

PKZ176-211500-
WESTERN ALEUTIANS KISKA TO ATTU
400 PM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...NE WIND 30 KT. SEAS 11 FT. 
.THU AND THU NIGHT...NE WIND 30 KT. SEAS 11 FT. 
.FRI AND FRI NIGHT...NE WIND 20 KT. SEAS 9 FT. 
.SAT...NW WIND 20 KT. SEAS 8 FT. 
.SUN...NW WIND 25 KT. SEAS 8 FT. 
.MON...SW WIND 20 KT. SEAS 8 FT.  

$$

PKZ185-211500-
ST MATTHEW ISLAND WATERS
400 PM AKDT WED APR 20 2011

...BRISK WIND ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...NE WIND 20 KT. 
.THU AND THU NIGHT...NE WIND 25 KT. 
.FRI THROUGH SAT...N WIND 25 KT. 
.SUN...NW WIND 25 KT. 
.MON...NE WIND 15 KT.  

$$

PKZ179-211500-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 PM AKDT WED APR 20 2011

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...NE WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.THU AND THU NIGHT...NE WIND 30 KT. SEAS 8 FT. FREEZING SPRAY. 
.FRI AND FRI NIGHT...N WIND 35 KT. SEAS 9 FT. 
.SAT...NW WIND 30 KT. SEAS 9 FT. 
.SUN...W WIND 20 KT. SEAS 8 FT. 
.MON...SW WIND 10 KT. SEAS 6 FT.  

$$

285 
FZAK52 PAFC 211155
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 AM AKDT THU APR 21 2011

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.

PKZ199-220300-
400 AM AKDT THU APR 21 2011
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
HIGH PRESSURE PERSISTS OVER THE NORTHERN BERING THROUGH WED
NIGHT. A 979 MB LOW 300 NM SOUTH OF DUTCH HARBOR MOVES TO 
330 NM SOUTHEAST OF DUTCH HARBOR AT 977 MB FRIDAY AFTERNOON. 

$$

PKZ150-220300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON.
SEAS 9 FT. RAIN.
.TONIGHT...SE WIND 30 KT DIMINISHING TO S 20 KT AFTER 
MIDNIGHT. SEAS 12 FT. RAIN.
.FRI...SE WIND 20 KT. SEAS 11 FT. 
.FRI NIGHT...E WIND 20 KT. SEAS 10 FT. 
.SAT...NE WIND 20 KT. SEAS 10 FT. 
.SUN...NW WIND 25 KT. SEAS 11 FT. 
.MON...SW WIND 20 KT. SEAS 8 FT.  

$$

PKZ155-220300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 AM AKDT THU APR 21 2011

...GALE WARNING TODAY...

.TODAY...E WIND 25 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS 08
FT INCREASING TO 11 FT IN THE AFTERNOON. RAIN.
.TONIGHT...E WIND 30 KT DIMINISHING TO S 20 KT AFTER MIDNIGHT.
SEAS 12 FT. 
.FRI...E WIND 15 KT. SEAS 10 FT. 
.FRI NIGHT...NE WIND 20 KT. SEAS 10 FT. 
.SAT...NW WIND 30 KT. SEAS 9 FT. 
.SUN...NW WIND 25 KT. SEAS 10 FT. 
.MON...SW WIND 15 KT. SEAS 6 FT.  

$$

PKZ160-220300-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE WIND 15 KT INCREASING TO 25 KT IN THE AFTERNOON.
SEAS IN ICE FREE WATERS 3 FT. PATCHY FOG. 
.TONIGHT...NE WIND 30 KT. SEAS IN ICE FREE WATERS 5 FT. SNOW.
FREEZING SPRAY. 
.FRI...NE WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. 
SEAS IN ICE FREE WATERS 5 FT. FREEZING SPRAY. 
.FRI NIGHT...NE WIND 15 KT. SEAS IN ICE FREE WATERS 2 FT. 
.SAT...NW WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT.
.SUN...W WIND 30 KT. SEAS IN ICE FREE WATERS 6 FT. 
.MON...SW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.  

$$

PKZ165-220300-
PORT HEIDEN TO CAPE SARICHEF
400 AM AKDT THU APR 21 2011

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...NE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON.
SEAS 7 FT. PATCHY FOG. 
.TONIGHT...NE WIND 35 KT. SEAS 9 FT. RAIN AND SNOW. 
.FRI...NE WIND 35 KT. SEAS 8 FT. 
.FRI NIGHT...N WIND 25 KT. SEAS 7 FT. 
.SAT...NW WIND 25 KT. SEAS 9 FT. 
.SUN...W WIND 25 KT. SEAS 8 FT. 
.MON...S WIND 15 KT. SEAS 6 FT.  

$$

PKZ180-220300-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 AM AKDT THU APR 21 2011

...BRISK WIND ADVISORY TONIGHT AND FRIDAY...

.TODAY...N WIND 20 KT. PATCHY FOG. 
.TONIGHT AND FRI...N WIND 25 KT. 
.FRI NIGHT...N WIND 25 KT. 
.SAT...NW WIND 25 KT. 
.SUN...NW WIND 20 KT. 
.MON...NW WIND 10 KT.  

$$

PKZ170-220300-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 AM AKDT THU APR 21 2011

...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND 35 KT. SEAS 13 FT. RAIN.
.TONIGHT...NE WIND 35 KT. SEAS 13 FT. 
.FRI...N WIND 35 KT. SEAS 13 FT. 
.FRI NIGHT...N WIND 30 KT. SEAS 11 FT. 
.SAT...NW WIND 30 KT. SEAS 12 FT. 
.SUN AND MON...W WIND 25 KT. SEAS 8 FT. 

$$

PKZ171-220300-
UNALASKA BAY
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE WIND 25 KT. SEAS 8 FT. RAIN.
.TONIGHT...NE WIND 30 KT. SEAS 10 FT. 
.FRI...N WIND 25 KT. SEAS 8 FT. 
.FRI NIGHT...N WIND 25 KT. SEAS 8 FT. 
.SAT...NW WIND 25 KT. SEAS 9 FT. 
.SUN...SW WIND 15 KT. SEAS 5 FT. 
.MON...W WIND 10 KT. SEAS 2 FT.  

$$

PKZ172-220300-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 AM AKDT THU APR 21 2011

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 35 KT. SEAS 14 FT. 
.TONIGHT...NE WIND 35 KT. SEAS 13 FT. 
.FRI...N WIND 30 KT. SEAS 14 FT. 
.FRI NIGHT...N WIND 25 KT. SEAS 13 FT. 
.SAT...NW WIND 25 KT. SEAS 13 FT. 
.SUN AND MON...W WIND 30 KT. SEAS 13 FT. 

$$

PKZ175-220300-
WESTERN ALEUTIANS ADAK TO KISKA
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE WIND 30 KT. SEAS 12 FT. 
.TONIGHT AND FRI...NE WIND 25 KT. SEAS 12 FT. 
.FRI NIGHT...N WIND 25 KT. SEAS 11 FT. 
.SAT...NW WIND 20 KT. SEAS 10 FT. 
.SUN...NW WIND 30 KT. SEAS 13 FT. 
.MON...W WIND 25 KT. SEAS 11 FT.  

$$

PKZ176-220300-
WESTERN ALEUTIANS KISKA TO ATTU
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...NE WIND 30 KT. SEAS 12 FT. 
.TONIGHT...NE WIND 25 KT. SEAS 11 FT. 
.FRI...NE WIND 20 KT. SEAS 10 FT. 
.FRI NIGHT...NE WIND 20 KT. SEAS 10 FT. 
.SAT AND SUN...NW WIND 25 KT. SEAS 10 FT. 
.MON...SW WIND 20 KT. SEAS 9 FT.  

$$

PKZ185-220300-
ST MATTHEW ISLAND WATERS
400 AM AKDT THU APR 21 2011

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. FREEZING
SPRAY. 
.TONIGHT...NE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. FREEZING
SPRAY. 
.FRI...N WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.SAT AND SUN...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.MON...N WIND 15 KT. SEAS IN ICE FREE WATERS 3 FT.  

$$

PKZ179-220300-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 AM AKDT THU APR 21 2011

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...NE WIND 30 KT. SEAS 9 FT. FREEZING SPRAY. 
.TONIGHT...NE WIND 35 KT. SEAS 9 FT. HEAVY FREEZING SPRAY. 
.FRI...N WIND 30 KT. SEAS 9 FT. HEAVY FREEZING SPRAY. 
.FRI NIGHT...N WIND 30 KT. SEAS 9 FT. 
.SAT...NW WIND 30 KT. SEAS 9 FT. 
.SUN...S WIND 15 KT. SEAS 5 FT. 
.MON...VARIABLE WIND 10 KT. SEAS 8 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
200 PM AKDT TUE APR 19 2011

.MODEL DISCUSSION...
THE MODELS ARE GENERALLY IN GOOD AGREEMENT THROUGH THU MORNING.
MODELS THEN DIVERGE ON SOLUTIONS...MAINLY WITH THE LOW COMPLEX SOUTH
OF THE AK PEN AND GULF OF ALASKA. THE GFS AND ECMWF MODELS HAVE BOTH
BEEN INTERNALLY CONSISTENT ON THE LAST COUPLE OF RUNS THROUGH THE
SHORT TERM BUT VARY CONSIDERABLY FROM EACH OTHER. AFTERNOON PACKAGE
(THRU 84 HRS) WILL BE BASED ON MINOR BLENDS OF THE 12Z GFS AND 00Z
ECMWF WITH THE CHANGES MINOR OVERALL.

.ANALYSIS AND UPPER LEVELS...
THE UPPER LEVELS SHOW A STRING OF CLOSED LOWS THAT LIE JUST SOUTH OF
SHEMYA TO ABOUT 600 NM SOUTH OF KODIAK. THERE IS ALSO AN UPPER LOW
OVER FAR NORTHERN CANADA THAT WILL MOVE SOUTHWESTWARD OVER ALASKA
OVER THE NEXT FEW DAYS. OTHERWISE...A LARGE AREA OF HIGH PRESSURE
OVER BERING IS KEEPING WEATHER RELATIVELY BENIGN ACROSS THE AREA. THE
MAIN SURFACE LOW THAT IS AFFECTING THE FORECAST AREA IS JUST SOUTH OF
ATKA...AND REMAINS NEARLY STATIONARY.

.SHORT TERM...
SOUTHCENTRAL...CONDITIONS WILL GET PROGRESSIVELY MORE CLOUDY AND
UNSTABLE OVER THE NEXT COUPLE OF DAYS AS UPPER LEVEL TROUGH DIGS
SOUTHWEST OVER THE WESTERN MAINLAND. THE SURFACE TROUGH EXTENDING
ACROSS THE COPPER RIVER BASIN TO OVER COOK INLET WILL REMAIN
RELATIVELY STATIONARY THROUGH THU. PRESSURE GRADIENTS INCREASE THU AS
A RIDGE BUILDS ACROSS THE NORTH GULF COAST IN ADVANCE OF AN
APPROACHING FRONTAL TROUGH. THE RESULTANT CHANGE WILL PRODUCE BRISK
AND GUSTY GAP FLOWS OVER SOUTHCENTRAL...ESPECIALLY EAST WINDS ACROSS
TURNAGAIN ARM...SE WINDS THROUGH KNIK VALLEY...AND GUSTY SOUTH WINDS
ALONG THE COPPER RIVER.

SW ALASKA...GENERALLY DRY CONDITIONS WILL CONTINUE THROUGH WED. MAY
SEE INCREASING CHANCES OF SHOWERS THU/THU NIGHT OVER BRISTOL BAY AS
SOUTHERLY FLOW IN THE MID/LOW LEVEL BRINGS IN MOISTURE WHICH COMBINE
WITH INSTABILITY OF UPPER TROUGH.

ALEUTIANS/BRISTOL BAY/EASTERN BERING SEA...A SERIES OF LOWS WILL
CONTINUE SOUTH OF THE ALEUTIANS OVER THE NEXT COUPLE OF DAYS AND
BRING PERIODS OF SHOWERS/RAIN TO MUCH OF THE ALEUTIANS/AK PEN. BRISK
EAST TO NE WINDS...GENERALLY BELOW GALES...CAN ALSO BE EXPECTED
ACROSS THE ALEUTIANS...AK PEN...AND EASTERN BERING SEA INTO THU.

.LONG TERM FORECAST...
THE RAIN AND SNOW SHOWER CHANCES WILL CONTINUE FOR MUCH OF THE AREA
THROUGH THE END OF THE WEEK. WHILE CONFIDENCE IS MODERATE TO HIGH FOR
THE END OF THE WEEK...CONFIDENCE DECREASES SIGNIFICANTLY BY THE
WEEKEND...WHEN MODEL DIFFERENCES ARE GREATEST.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 172 175.
FIRE WEATHER...NONE.

RMC APR 11