Storm Warning 50, NWS Anchorage, AK

039 
FZAK52 PAFC 231232
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 AM AKST SAT FEB 23 2013

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.

PKZ199-240300-
400 AM AKST SAT FEB 23 2013
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 964 MB LOW 90 NM NORTHEAST OF ADAK WILL WEAKEN TO 983 MB AS IT
MOVES TO 57N 157W SAT MORNING AND THEN CONTINUE TO WEAKEN AS IT MOVES
INTO THE WESTERN GULF SATURDAY NIGHT. A NORTH PACIFIC LOW WILL MOVE
TO 480 NM SOUTH OF SHEMYA AT 993 MB SUN MORNING AND THEN STRENGTHEN
TO 987 MB AS IT MOVES TO 210 NM SOUTHEAST OF SAND POINT MON MORNING.
WEAK LOW PRESSURE WILL PERSIST OVER THE WESTERN BERING THROUGH MON
MORNING.

$$

PKZ150-240300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 AM AKST SAT FEB 23 2013

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW WIND 40 KT. SEAS 21 FT. RAIN AND SNOW. 
.TONIGHT...S WIND 40 KT BECOMING SW 30 KT AFTER MIDNIGHT. SEAS 26 FT.
RAIN AND SNOW. 
.SUN...W WIND 35 KT. SEAS 22 FT. FREEZING SPRAY. 
.SUN NIGHT...NW WIND 25 KT. SEAS 16 FT. 
.MON...N WIND 40 KT. SEAS 15 FT. 
.TUE...N WIND 20 KT. SEAS 11 FT. 
.WED...N WIND 15 KT. SEAS 13 FT.  

$$

PKZ155-240300-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 AM AKST SAT FEB 23 2013

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TODAY...SW WIND 40 KT INCREASING TO 50 KT IN THE LATE MORNING. SEAS
29 FT BUILDING TO 37 FT IN THE AFTERNOON. FROM THE SHUMAGIN ISLANDS
E...SEAS 26 FT. RAIN AND SNOW. 
.TONIGHT...SW WIND 45 KT BECOMING NW AFTER MIDNIGHT. SEAS 34 FT
SUBSIDING TO 27 FT AFTER MIDNIGHT. RAIN AND SNOW. FREEZING SPRAY NEAR
THE COAST AFTER MIDNIGHT. 
.SUN...W WIND 40 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
22 FT SUBSIDING TO 17 FT. HEAVY FREEZING SPRAY NEAR THE COAST. 
.SUN NIGHT...NE WIND 40 KT. SEAS 12 FT. 
.MON...N WIND 45 KT. SEAS 14 FT. 
.TUE...NE WIND 15 KT. SEAS 10 FT. 
.WED...N WIND 15 KT. SEAS 19 FT.  

$$

PKZ160-240300-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 AM AKST SAT FEB 23 2013

...GALE WARNING TODAY...

.TODAY...S WIND 35 KT BECOMING SE 20 KT IN THE AFTERNOON.  
.TONIGHT...E WIND 20 KT BECOMING NW 25 KT AFTER MIDNIGHT. SNOW.
.SUN...W WIND 30 KT. 
.SUN NIGHT...NW WIND 25 KT. 
.MON...N WIND 35 KT. 
.TUE...NE WIND 20 KT. 
.WED...N WIND 20 KT.  

$$

PKZ165-240300-
PORT HEIDEN TO CAPE SARICHEF
400 AM AKST SAT FEB 23 2013

...GALE WARNING THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND SUNDAY...

.TODAY...SE WIND 35 KT BECOMING S 25 KT IN THE AFTERNOON. SEAS 13 FT
SUBSIDING TO 9 FT. RAIN AND SNOW. 
.TONIGHT...NW WIND 35 KT. FROM PORT MOLLER E...S WIND 20 KT BECOMING
NW 30 KT AFTER MIDNIGHT. SEAS 8 FT BUILDING TO 12 FT AFTER MIDNIGHT.
SNOW AND RAIN. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 35 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
10 FT SUBSIDING TO 6 FT IN THE AFTERNOON. HEAVY FREEZING SPRAY. 
.SUN NIGHT...N WIND 30 KT. SEAS 8 FT. 
.MON...N WIND 35 KT. SEAS 10 FT. 
.TUE...NE WIND 25 KT. SEAS 7 FT. 
.WED...N WIND 20 KT. SEAS 7 FT.  

$$

PKZ180-240300-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 AM AKST SAT FEB 23 2013

...BRISK WIND ADVISORY THROUGH SUNDAY...

.TODAY...NE WIND 30 KT. SNOW.
.TONIGHT...N WIND 25 KT. 
.SUN...NW WIND 25 KT. 
.SUN NIGHT...NW WIND 20 KT. 
.MON...N WIND 25 KT. 
.TUE...NE WIND 25 KT. 
.WED...N WIND 25 KT.  

$$

PKZ170-240300-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 AM AKST SAT FEB 23 2013

...STORM WARNING TODAY...

.TODAY...BERING SIDE...S WIND 40 KT BECOMING NW IN THE AFTERNOON.
SEAS 17 FT. PACIFIC SIDE...SW WIND 55 KT DIMINISHING TO 45 KT IN THE
LATE AFTERNOON. SEAS 41 FT. RAIN AND SNOW. 
.TONIGHT...NW WIND 45 KT DIMINISHING TO 35 KT AFTER MIDNIGHT. BERING
SIDE...SEAS 17 FT SUBSIDING TO 13 FT. PACIFIC SIDE...SEAS 33 FT
SUBSIDING TO 22 FT. SNOW SHOWERS. FREEZING SPRAY. 
.SUN...W WIND 25 KT BECOMING NE 20 KT IN THE AFTERNOON. BERING
SIDE...SEAS 9 FT. PACIFIC SIDE...SEAS 16 FT SUBSIDING TO 11 FT IN THE
AFTERNOON. SNOW. FREEZING SPRAY. 
.SUN NIGHT...NE WIND 40 KT. SEAS 12 FT. 
.MON...NE WIND 40 KT. SEAS 13 FT. 
.TUE...E WIND 30 KT. SEAS 15 FT. 
.WED...N WIND 25 KT. SEAS 20 FT.  

$$

PKZ171-240300-
UNALASKA BAY
400 AM AKST SAT FEB 23 2013

...GALE WARNING TONIGHT...

.TODAY...SW WIND 25 KT. GUSTS TO 40 KT. SEAS 5 FT. RAIN AND SNOW. 
.TONIGHT...NW WIND 40 KT DIMINISHING TO 30 KT NEAR MORNING. GUSTS TO
50 KT THROUGH MIDNIGHT. SEAS 7 FT. SNOW SHOWERS. FREEZING SPRAY. 
.SUN...W WIND 20 KT BECOMING VARIABLE LESS THAN 10 KT IN THE
AFTERNOON. SEAS 3 FT. FREEZING SPRAY. 
.SUN NIGHT...NE WIND 30 KT. SEAS 8 FT. 
.MON...N WIND 30 KT. SEAS 9 FT. 
.TUE...E WIND 20 KT. SEAS 3 FT. 
.WED...N WIND 20 KT. SEAS 6 FT.  

$$

PKZ172-240300-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 AM AKST SAT FEB 23 2013

...STORM WARNING TODAY...

.TODAY...NW WIND 40 KT. E OF SEGUAM ISLAND PACIFIC SIDE...W WIND 55
KT BECOMING NW 45 KT IN THE AFTERNOON. BERING SIDE...SEAS 19 FT.
PACIFIC SIDE...SEAS 39 FT SUBSIDING TO 29 FT IN THE AFTERNOON. RAIN
AND SNOW SHOWERS. FREEZING SPRAY. 
.TONIGHT...NW WIND 40 KT BECOMING W 25 KT AFTER MIDNIGHT. W OF SEGUAM
ISLAND...NW WIND 25 KT DIMINISHING TO 15 KT AFTER MIDNIGHT. BERING
SIDE...SEAS 15 FT SUBSIDING TO 10 FT. PACIFIC SIDE...SEAS 22 FT
SUBSIDING TO 16 FT. FREEZING SPRAY. 
.SUN...NE WIND 20 KT. SEAS 11 FT. SNOW. FREEZING SPRAY. 
.SUN NIGHT...NE WIND 30 KT. SEAS 9 FT. 
.MON...E WIND 45 KT. SEAS 20 FT. 
.TUE...E WIND 35 KT. SEAS 21 FT. 
.WED...N WIND 30 KT. SEAS 20 FT.  

$$

PKZ175-240300-
WESTERN ALEUTIANS ADAK TO KISKA
400 AM AKST SAT FEB 23 2013

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NW WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS 21
FT. SNOW SHOWERS. FREEZING SPRAY. 
.TONIGHT...BERING SIDE...E WIND 15 KT. PACIFIC SIDE...W WIND 30 KT
DIMINISHING TO 15 KT AFTER MIDNIGHT. SEAS 15 FT SUBSIDING TO 11 FT
AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY. 
.SUN...NW WIND 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.SUN NIGHT...S WIND 15 KT. SEAS 8 FT. 
.MON...SE WIND 40 KT. SEAS 16 FT. 
.TUE...NE WIND 35 KT. SEAS 23 FT. 
.WED...N WIND 25 KT. SEAS 14 FT.  

$$

PKZ176-240300-
WESTERN ALEUTIANS KISKA TO ATTU
400 AM AKST SAT FEB 23 2013

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...BERING SIDE...NE WIND 20 KT. PACIFIC SIDE...NE WIND 20 KT
BECOMING SW 25 KT IN THE AFTERNOON. SEAS 17 FT. SNOW SHOWERS.
FREEZING SPRAY BERING SIDE. 
.TONIGHT...BERING SIDE...E WIND 20 KT. PACIFIC SIDE...SW WIND 25 KT
BECOMING W 15 KT AFTER MIDNIGHT. SEAS 13 FT. SNOW SHOWERS. FREEZING
SPRAY BERING SIDE. 
.SUN...W WIND 20 KT. SEAS 10 FT. 
.SUN NIGHT...SW WIND 20 KT. SEAS 8 FT. 
.MON...SE WIND 30 KT. SEAS 16 FT. 
.TUE...N WIND 30 KT. SEAS 23 FT. 
.WED...NE WIND 20 KT. SEAS 12 FT.  

$$

PKZ185-240300-
ST MATTHEW ISLAND WATERS
400 AM AKST SAT FEB 23 2013

...BRISK WIND ADVISORY THROUGH TONIGHT...

.TODAY...N WIND 30 KT. 
.TONIGHT...N WIND 25 KT. 
.SUN...NW WIND 15 KT. 
.SUN NIGHT...W WIND 20 KT. 
.MON...S WIND 40 KT. 
.TUE...E WIND 20 KT. 
.WED...N WIND 25 KT.  

$$

PKZ179-240300-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 AM AKST SAT FEB 23 2013

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 35 KT. SEAS IN ICE FREE WATERS 12 FT. SNOW. HEAVY
FREEZING SPRAY. 
.TONIGHT...NW WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 11 FT SUBSIDING TO 7 FT AFTER MIDNIGHT. SNOW
SHOWERS. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 15 KT. SEAS IN ICE FREE WATERS 6 FT. HEAVY FREEZING
SPRAY. 
.SUN NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT.
.MON...SE WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT. 
.TUE...E WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT. 
.WED...N WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT.  

$$

223 
FZAK52 PAFC 240040
CWFALU

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
400 PM AKST SAT FEB 23 2013

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.

PKZ199-241500-
400 PM AKST SAT FEB 23 2013
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 972 MB LOW NEAR COLD BAY WILL MOVE TO 140 NM EAST OF KODIAK CITY 
BY SUN AFTERNOON AND THEN DISSIPATE. A 989 MB LOW 280 NM SOUTHEAST OF
ATKA SUN AFTERNOON WILL MOVE TO 280 NM SOUTHEAST OF SITKINAK MON
AFTERNOON AND STRENGTHEN TO 975 MB. A 979 MB LOW WILL BE 300 NM 
SOUTH OF SHEMYA MON AFTERNOON. 

$$

PKZ150-241500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA SITKINAK TO CASTLE
CAPE
400 PM AKST SAT FEB 23 2013

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S WIND 40 KT. SEAS 25 FT. RAIN AND SNOW. 
.SUN...W WIND 40 KT BECOMING NW 30 KT IN THE AFTERNOON. GUSTS TO 50
KT OUT OF BAYS AND PASSES. SEAS 23 FT. RAIN SHOWERS IN THE MORNING.
FREEZING SPRAY IN THE AFTERNOON. 
.SUN NIGHT...W WIND 25 KT BECOMING E 30 KT AFTER MIDNIGHT. SEAS 16 FT
SUBSIDING TO 10 FT AFTER MIDNIGHT. SNOW.
.MON...NE WIND 40 KT. SEAS 17 FT. 
.MON NIGHT...NW WIND 40 KT. SEAS 16 FT. 
.TUE...NW WIND 40 KT. SEAS 15 FT. 
.WED...N WIND 15 KT. SEAS 13 FT. 
.THU...NW WIND 20 KT. SEAS 16 FT.  
$$

PKZ155-241500-
COASTAL WATERS SOUTH OF THE ALASKA PENINSULA CASTLE CAPE TO CAPE
SARICHEF
400 PM AKST SAT FEB 23 2013

...GALE WARNING THROUGH SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY NIGHT...

.TONIGHT...SW WIND 45 KT BECOMING NW AFTER MIDNIGHT. GUSTS TO 55 KT
DEVELOPING DURING THE EVENING OUT OF BAYS AND PASSES. SEAS 32 FT.
RAIN CHANGING TO SNOW. FREEZING SPRAY AFTER MIDNIGHT ALONG THE COAST.
.SUN...W WIND 40 KT DIMINISHING TO 25 KT IN THE AFTERNOON. GUSTS TO
50 KT IN THE MORNING OUT OF BAYS AND PASSES. SEAS 22 FT SUBSIDING TO
16 FT IN THE AFTERNOON. FREEZING SPRAY. 
.SUN NIGHT...NE WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. FROM
THE SHUMAGIN ISLANDS E...NE WIND 15 KT BECOMING E 35 KT AFTER
MIDNIGHT. SEAS 12 FT. SNOW. HEAVY FREEZING SPRAY MAINLY AFTER
MIDNIGHT. 
.MON...N WIND 45 KT. SEAS 16 FT. 
.MON NIGHT...NW WIND 40 KT. SEAS 14 FT. 
.TUE...NW WIND 35 KT. SEAS 13 FT. 
.WED...N WIND 15 KT. SEAS 19 FT. 
.THU...NW WIND 20 KT. SEAS 16 FT.  
$$

PKZ160-241500-
BRISTOL BAY WATERS CAPE NEWENHAM TO PORT HEIDEN
400 PM AKST SAT FEB 23 2013

...BRISK WIND ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...NE WIND 25 KT BECOMING NW TOWARD MORNING. SNOW.
.SUN...NW WIND 25 KT. 
.SUN NIGHT...N WIND 25 KT. 
.MON...N WIND 35 KT. 
.MON NIGHT AND TUE...N WIND 35 KT. 
.WED AND THU...N WIND 20 KT. 
$$

PKZ165-241500-
PORT HEIDEN TO CAPE SARICHEF
400 PM AKST SAT FEB 23 2013

...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 30 KT BECOMING NW DURING THE EVENING. SEAS 10 FT.
RAIN CHANGING TO SNOW BY MID EVENING. HEAVY FREEZING SPRAY AFTER
MIDNIGHT. 
.SUN...NW WIND 30 KT DIMINISHING TO 15 KT TOWARD EVENING. SEAS 9 FT
SUBSIDING TO 5 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...N WIND 30 KT. SEAS 5 FT BUILDING TO 8 FT AFTER MIDNIGHT.
HEAVY FREEZING SPRAY. 
.MON THROUGH TUE...N WIND 35 KT. SEAS 10 FT. 
.WED...N WIND 20 KT. SEAS 7 FT. 
.THU...NW WIND 25 KT. SEAS 7 FT.  
$$

PKZ180-241500-
SOUTHWEST ALASKA WATERS CAPE NEWENHAM TO DALL POINT
400 PM AKST SAT FEB 23 2013

...BRISK WIND ADVISORY TONIGHT...

.TONIGHT...N WIND 25 KT. 
.SUN...NW WIND 20 KT. 
.SUN NIGHT...NW WIND 20 KT. 
.MON...N WIND 30 KT. 
.MON NIGHT...N WIND 25 KT. 
.TUE...NE WIND 30 KT. 
.WED...N WIND 25 KT. 
.THU...N WIND 20 KT.  
$$

PKZ170-241500-
EASTERN ALEUTIANS CAPE SARICHEF TO NIKOLSKI
400 PM AKST SAT FEB 23 2013

...GALE WARNING TONIGHT AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY NIGHT...

.TONIGHT...NW WIND 40 KT. GUSTS TO 55 KT OUT OF PASSES. BERING
SIDE...SEAS 14 FT. PACIFIC SIDE...SEAS 29 FT SUBSIDING TO 22 FT AFTER
MIDNIGHT. SNOW. FREEZING SPRAY. 
.SUN...NW WIND 25 KT BECOMING NE AFTER MIDNIGHT. BERING SIDE...SEAS 9
FT. PACIFIC SIDE...SEAS 16 FT SUBSIDING TO 11 FT IN THE AFTERNOON.
SNOW. FREEZING SPRAY IN THE MORNING. 
.SUN NIGHT...NE WIND 40 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.MON...N WIND 40 KT. SEAS 13 FT. 
.MON NIGHT...NE WIND 30 KT. SEAS 10 FT. 
.TUE...NE WIND 35 KT. SEAS 14 FT. 
.WED...N WIND 25 KT. SEAS 20 FT. 
.THU...NW WIND 25 KT. SEAS 15 FT.  
$$

PKZ171-241500-
UNALASKA BAY
400 PM AKST SAT FEB 23 2013

...HEAVY FREEZING SPRAY WARNING SUNDAY NIGHT...
...SMALL CRAFT ADVISORY TONIGHT AND SUNDAY NIGHT...

.TONIGHT...NW WIND 30 KT. GUSTS TO 50 KT MAINLY IN THE EVENING. SEAS
8 FT SUBSIDING TO 4 FT AFTER MIDNIGHT. SNOW. FREEZING SPRAY. 
.SUN...NW WIND 15 KT BECOMING NE 10 KT IN THE AFTERNOON. SEAS 3 FT.
SNOW SHOWERS. 
.SUN NIGHT...N WIND 30 KT. SEAS 5 FT BUILDING TO 9 FT AFTER MIDNIGHT.
HEAVY FREEZING SPRAY. 
.MON...N WIND 30 KT. SEAS 11 FT. 
.MON NIGHT...NE WIND 20 KT. SEAS 7 FT. 
.TUE...NE WIND 25 KT. SEAS 7 FT. 
.WED...N WIND 20 KT. SEAS 6 FT. 
.THU...NW WIND 20 KT. SEAS 7 FT.  
$$

PKZ172-241500-
EASTERN ALEUTIANS NIKOLSKI TO ADAK
400 PM AKST SAT FEB 23 2013

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 30 KT BECOMING VARIABLE 15 KT AFTER MIDNIGHT. E OF
SEGUAM ISLAND...NW WIND 40 KT BECOMING W 20 KT TOWARD MORNING.
BERING SIDE...SEAS 15 FT. PACIFIC SIDE...SEAS 22 FT SUBSIDING TO 16
FT AFTER MIDNIGHT. FREEZING SPRAY. 
.SUN...E WIND 15 KT BECOMING NE 30 KT IN THE AFTERNOON. SEAS 11 FT.
SNOW. FREEZING SPRAY. 
.SUN NIGHT...NE WIND 30 KT. SEAS 9 FT. FREEZING SPRAY. 
.MON...NE WIND 25 KT. SEAS 9 FT. 
.MON NIGHT...SE WIND 45 KT. SEAS 20 FT. 
.TUE...E WIND 45 KT. SEAS 24 FT. 
.WED...N WIND 30 KT. SEAS 20 FT. 
.THU...N WIND 25 KT. SEAS 13 FT.  
$$

PKZ175-241500-
WESTERN ALEUTIANS ADAK TO KISKA
400 PM AKST SAT FEB 23 2013

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...PACIFIC SIDE...W WIND 25 KT. BERING SIDE...NW WIND 15 KT
BECOMING E 20 KT BY MIDNIGHT. SEAS 13 FT. SNOW. FREEZING SPRAY. 
.SUN...E WIND 15 KT. BERING SIDE...NW WIND 15 KT. SEAS 9 FT. SNOW.
.SUN NIGHT...VARIABLE WIND 15 KT. SEAS 7 FT. SNOW.
.MON...S WIND 25 KT. SEAS 8 FT. 
.MON NIGHT...SE WIND 35 KT. SEAS 17 FT. 
.TUE...NE WIND 40 KT. SEAS 25 FT. 
.WED...N WIND 25 KT. SEAS 14 FT. 
.THU...SE WIND 25 KT. SEAS 11 FT.  
$$

PKZ176-241500-
WESTERN ALEUTIANS KISKA TO ATTU
400 PM AKST SAT FEB 23 2013

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...E WIND 25 KT BERING SIDE...W WIND 15 KT PACIFIC SIDE. SEAS
13 FT. SNOW. FREEZING SPRAY BERING SIDE. 
.SUN...VARIABLE WIND 15 KT. SEAS 10 FT. SNOW.
.SUN NIGHT...SW WIND 15 KT. SEAS 7 FT. SNOW.
.MON...SE WIND 20 KT. SEAS 7 FT. 
.MON NIGHT...E WIND 30 KT. SEAS 16 FT. 
.TUE...NE WIND 35 KT. SEAS 20 FT. 
.WED...NE WIND 20 KT. SEAS 12 FT. 
.THU...SE WIND 20 KT. SEAS 12 FT.  
$$

PKZ185-241500-
ST MATTHEW ISLAND WATERS
400 PM AKST SAT FEB 23 2013

...BRISK WIND ADVISORY SUNDAY NIGHT...

.TONIGHT...NW WIND 20 KT. 
.SUN...NW WIND 15 KT. 
.SUN NIGHT...NW WIND 15 KT. W OF SAINT MATTHEW ISLAND...WINDS
BECOMING SE 25 KT AFTER MIDNIGHT.  
.MON...S WIND 30 KT. 
.MON NIGHT...S WIND 40 KT. 
.TUE...S WIND 35 KT. 
.WED...N WIND 25 KT. 
.THU...N WIND 20 KT.  
$$

PKZ179-241500-
PRIBILOF ISLANDS NEAR-SHORE WATERS
400 PM AKST SAT FEB 23 2013

...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...
...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT. SNOW
SHOWERS. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 15 KT BECOMING NE IN THE AFTERNOON. SEAS IN ICE FREE
WATERS 6 FT. HEAVY FREEZING SPRAY IN THE MORNING. 
.SUN NIGHT...NE WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT. HEAVY
FREEZING SPRAY. 
.MON...NE WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. 
.MON NIGHT...SE WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. 
.TUE...E WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT. 
.WED AND THU...N WIND 25 KT. SEAS IN ICE FREE WATERS 9 FT. 
$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
1212 PM AKST FRI FEB 22 2013

.ANALYSIS AND UPPER LEVELS...A VERY LARGE AND DEEP LOW IS PASSING
JUST WEST OF ADAK THIS MORNING WITH FRONTAL SYSTEM TRACKING NORTH
AND EASTWARD ACROSS THE CENTRAL BERING AND CENTRAL TO EASTERN
ALEUTIANS. THE STRONGEST WINDS WITH THIS SYSTEM ARE ASSOCIATED
WITH ARCTIC AIR WRAPPING AROUND THE SOUTH SIDE OF THE LOW CENTER.
A SATELLITE SCATTEROMETER IMAGE FROM OVERNIGHT SHOWED AN AREA OF
50 TO 70 KTS SOUTH TO SOUTHWEST OF THE LOW CENTER. THESE HAVE
LIKELY STRENGTHENED A BIT SINCE THEN AS THE LOW HAS CONTINUED TO
DEEPEN.

MEANWHILE...DOWNSTREAM OF THIS SYSTEM A SERIES OF SHORT-WAVES ARE
PROGRESSING EAST-NORTHEAST ACROSS SOUTHCENTRAL ALASKA AND THE GULF
OF ALASKA. THIS IS PRODUCING AREAS OF LIGHT SNOW PRIMARILY FROM
ANCHORAGE NORTHWARD TO THE MATANUSKA AND SUSITNA VALLEYS. DOWNWARD
MOMENTUM TRANSFER WITH THE UPPER TROUGH IS COMBINING WITH LOW LEVEL
COLD ADVECTION AND A TIGHT PRESSURE GRADIENT IN THE WAKE OF A STRONG
LOW NEAR SOUTHEAST ALASKA TO PRODUCE WIDESPREAD STRONG WINDS ACROSS
THE GULF.

.MODEL DISCUSSION...MODELS HAVE REALLY BEEN STRUGGLING WITH THE
TRACK OF SYSTEM ALONG THE ALEUTIANS...DISPLAYING SIGNIFICANT
RUN-TO-RUN INCONSISTENCIES. FOR THE 12Z MODEL CYCLE THE
GFS/NAM/GEMGLB ARE ALL VERIFYING TOO FAR WEST WITH THE LOW CENTER.
THE ECMWF AND UKMET ARE RIGHT ON SPOT. INTERESTINGLY...MODELS ARE
IN GOOD AGREEMENT IN FRONTAL PROGRESSION TO MAINLAND ALASKA AND
DEVELOPMENT OF A WEAK TRIPLE POINT LOW JUST NORTH OF KODIAK ISLAND.
SOLUTIONS DO DIVERGE WITH TRACK OF THE LOW AS IT REACHES SOUTHWEST
ALASKA SATURDAY NIGHT. BASED ON THE BETTER INITIALIZATION OF THE
ECMWF PLAN TO TREND TOWARD IT THROUGH THE WEEKEND. UNCERTAINTY
GROWS MUCH LARGER WITH NEXT SYSTEM TRACKING SOUTH OF THE ALEUTIANS
AND ALASKA PENINSULA SUNDAY AND MONDAY. CURRENT FORECAST DOES NOT
REFLECT A STRONG LOW IN THIS AREA SO WILL MAKE SOME SIGNIFICANT
CHANGES IN THIS TIME PERIOD TO INDICATE STRONGER WINDS (EVEN WITH
UNCERTAINTY IN THE EXACT LOW TRACK).

.SHORT TERM FORECAST...

SOUTHCENTRAL ALASKA...CONDITIONS WILL BRIEFLY DRY OUT THIS AFTERNOON
AND EVENING ACROSS SOUTHCENTRAL AS THE LAST IN A LINE OF UPPER
SHORT-WAVES EXITS TO THE NORTHEAST. WITH DECREASING CLOUDS AND
A SHORT-WAVE RIDGE MOVING OVERHEAD THERE WILL BE A THREAT OF FOG
ACROSS THE REGION. HOWEVER...THIS WILL BE SHORT-LIVED AS THE
FRONTAL SYSTEM FROM THE ALEUTIAN SYSTEM MOVES TO THE WESTERN GULF
OVERNIGHT AND INTO SOUTHCENTRAL ON SATURDAY. THIS WILL BE A FAST
MOVING FRONT AND IT WILL RAPIDLY WEAKEN AS IT APPROACHES SOUTHCENTRAL
SO GENERALLY EXPECT A SHORT DURATION OF PRECIP AND WINDS. THERE IS
SOME UNCERTAINTY IN THE LOCATION AND STRENGTH OF THE TRIPLE POINT
LOW. BASED ON THE CURRENT EXPECTED TRACK FROM THE BARREN ISLANDS
NORTHWARD ACROSS THE KENAI PENINSULA EXPECT SOME GUSTY EASTERLIES
THROUGH PORTAGE VALLEY AND TURNAGAIN ARM WHICH WILL CAUSE SOME
TEMPORARY LOW VISIBILITIES IN SNOW AND BLOWING SNOW. THE EXACT
TRACK OF THE LOW WILL AFFECT THE STRENGTH OF THESE WINDS AND
DETERMINE HOW LOW VISIBILITIES DROP. RIGHT NOW IT DOES NOT LOOK
FAVORABLE TO REACH ADVISORY OR WARNING THRESHOLDS. AFTER THE FRONTAL
SYSTEM WEAKENS THE REMNANTS OF THE ALEUTIAN SYSTEM WILL MOVE INTO
THE GULF AND SOUTHCENTRAL ON SUNDAY PRODUCING AREAS OF GENERALLY
LIGHT SNOW WITH MINOR ACCUMULATION. A MUCH MORE SIGNIFICANT STORM
WILL HEAD INTO THE GULF EARLY NEXT....BUT THERE IS HIGH UNCERTAINTY
IN THE TRACK OF THIS SYSTEM SO ITS A BIT TOO EARLY TO IDENTIFY WHICH
AREAS WILL EXPERIENCE THE GREATEST IMPACTS.

SOUTHWEST ALASKA...FRONTAL SYSTEM CROSSING THE BERING TODAY WILL
MOVE ACROSS SOUTHWEST ALASKA TONIGHT AND SATURDAY. THERE WILL
INITIALLY BE SOME GUSTY WINDS AS SNOW FIRST ARRIVES WHICH WILL
CAUSE BLOWING SNOW AND VISIBILITIES AS LOW AS ONE HALF MILE.
HOWEVER...THE FRONT WILL BE MOVE THROUGH QUICKLY AND WEAKEN AS IT
HEADS INLAND. THEREFORE THE PERIOD OF REALLY LOW VISIBILITIES WILL
BE SHORT-LIVED. THE LOW CENTER WILL ARRIVE IN THE REGION SATURDAY
NIGHT MAINTAINING AREAS OF LIGHT SNOW. AS THIS SYSTEM EXITS THE
NORTH AND EAST SUNDAY AND SUNDAY NIGHT STRONG COLD ADVECTION WILL
KICK IN BEHIND IT. THIS WILL COMBINE WITH STRONG PRESSURE RISES
TO PRODUCE GUSTY WINDS...PRIMARILY ALONG AND NEAR THE COAST. WILL
LIKELY NEED A WIND CHILL ADVISORY FOR THE KUSKOKWIM DELTA BEGINNING
SUNDAY NIGHT. THE PATTERN WILL REMAIN ACTIVE EARLY NEXT WEEK AS
ANOTHER STRONG STORM SYSTEM TRACKS SOUTH OF THE ALASKA PENINSULA.
THERE IS QUITE A BIT OF UNCERTAINTY IN THE TRACK OF THIS SYSTEM...
BUT THERE IS A GOOD CHANCE SNOW WILL SPREAD NORTHWARD INTO BRISTOL
BAY AND NORTHERLY WINDS WILL STRENGTHEN ACROSS SOUTHWEST ALASKA.
BOTTOM LINE...ITS LOOKING COLD AND WINDY.

BERING SEA/ALEUTIANS...BASED ON THE LATEST TRACK OF THE LOW JUST
WEST OF ADAK AND EXPECTED FUTURE TRACK EASTWARD...THE STRONGEST
CORE OF WINDS ON THE SOUTH SIDE OF THE LOW WILL STAY JUST SOUTH OF
THE ALEUTIAN CHAIN. THERE MAY BE JUST A FEW SOUTHWESTERLY GUSTS
APPROACHING WARNING LEVEL IN ATKA THIS AFTERNOON BEFORE THESE WINDS
SHIFT EASTWARD. MEANWHILE...EXPECT BLIZZARD CONDITIONS TO DEVELOP
ON THE PRIBILOF ISLANDS THIS AFTERNOON AS SNOW ARRIVES WITH THE
OCCLUDED FRONT. WINDS WILL DIMINISH SIGNIFICANTLY ON ST GEORGE
ISLAND AS THE FRONT NEARS...BUT WILL REMAIN STRONG ON ST PAUL ISLAND.
THE FRONT NEVER ACTUALLY REACHES THE ISLAND - IT COMES CLOSE AND
THEN HEADS EASTWARD. THERE WILL LIKELY BE A PERIOD OF IMPROVED
VISIBILITIES TONIGHT...BUT BLIZZARD CONDITIONS WILL RE-DEVELOP AS
STRONG COLD ADVECTION KICKS IN ON THE BACK SIDE OF THE SYSTEM. AS
THE LOW BEGINS TO PROGRESS EASTWARD TONIGHT AND SATURDAY THE FOCUS
WILL SHIFT TO THE BACK SIDE WHERE COLD ADVECTION AND STRONG PRESSURE
RISES WILL PRODUCE VERY STRONG AND GUSTY WINDS. LOW LEVEL WINDS DO
NOT APPEAR QUITE STRONG ENOUGH TO REACH WARNING LEVELS...BUT AS
WINDS ACCELERATE THROUGH GAPS IN THE EASTERN ALEUTIANS AND ALASKA
PENINSULA THEY MAY COME VERY CLOSE. THE OTHER THREAT WILL BE BLOWING
SNOW AS SNOW SHOWER GENERATION KICKS INTO GEAR OVER THE BERING SEA.
ALTHOUGH STRONG ADVECTION IS MODERATE TO STRONG AND SNOW SHOWERS
WILL BE HEAVY AT TIMES...DON'T SEE ANY UPPER LEVEL FEATURE TO HELP
PRODUCE A STEADY SNOW. THEREFORE...DO NOT THINK SUSTAINED BLIZZARD
CONDITIONS WILL DEVELOP ALONG THE EASTERN ALEUTIANS OR ALASKA
PENINSULA. THERE WILL BE SHORT DURATIONS OF WHITE-OUT CONDITIONS
IN HEAVIER SNOW SHOWERS.

.LONG TERM FORECAST...THE UPPER LEVEL JET WILL PERSIST SOUTH OF THE
ALEUTIAN CHAIN AND CONTINUE TO SUPPORT FAST MOVING AND STRONG STORM
SYSTEMS THROUGH THE MIDDLE OF NEXT WEEK. IT LOOKS LIKE THERE WILL
THEN BE A LITTLE BIT OF CHANGE IN THE PATTERN AS A LARGE UPPER LEVEL
LOW SETS UP OVER THE FORECAST AREA AND THE UPPER JET SINKS SOUTHWARD.
THIS WILL SLOW DOWN THE PROGRESSION OF STORMS...AT LEAST FOR TWO OR
THREE DAYS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 195.
MARINE...HURRICANE FORCE WIND WARNING...172.
         STROM WARNING...170 175.
         GALE WARNING 150 155 160 165 171 176 179 185.
FIRE WEATHER...NONE.

SEB FEB 13