Gale Warning 301, NWS Anchorage, AK

124 
FZAK62 PAFC 012343
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT FRI APR 1 2011

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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.

PKZ499-021500-
400 PM AKDT FRI APR 1 2011
.SYNOPSIS FOR CENTRAL BERING SEA...
A 976 MB LOW NEAR 45N 171W WILL STRENGTHEN TO 968 MB AS IT MOVES 
TO 53N 161W SAT AFTERNOON. THIS LOW WILL THEN TRACK TO 53N 152W 
SUN AFTERNOON AT 973 MB. A 980 MB LOW WILL MOVE TO 57N 173E SUN
AFTERNOON AT 980 MB.
$$

PKZ411-021500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT FRI APR 1 2011

.TONIGHT...SW WIND 25 KT. SEAS 8 FT. SNOW SHOWERS.
.SAT...W WIND 30 KT. SEAS 13 FT. 
.SAT NIGHT...NW WIND 30 KT BECOMING SW 20 KT AFTER MIDNIGHT. SEAS
13 FT. 
.SUN...SE WIND 40 KT. SEAS 14 FT. 
.SUN NIGHT...SW WIND 45 KT. SEAS 15 FT. 
.MON...W WIND 40 KT. SEAS 19 FT. 
.TUE...NE WIND 25 KT. SEAS 13 FT. 
.WED...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ412-021500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT FRI APR 1 2011

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...E WIND 25 KT. SEAS 7 FT. FREEZING SPRAY. 
.SAT...NE WIND 25 KT. SEAS 7 FT. FREEZING SPRAY. 
.SAT NIGHT...N WIND 35 KT. SEAS 10 FT. FREEZING SPRAY.
.SUN...N WIND 35 KT. SEAS 11 FT. 
.SUN NIGHT...SE WIND 40 KT. SEAS 12 FT. 
.MON...W WIND 25 KT. SEAS 18 FT. 
.TUE...SE WIND 30 KT. SEAS 16 FT. 
.WED...NE WIND 30 KT. SEAS 14 FT.  

$$

PKZ413-021500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT FRI APR 1 2011

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...NE WIND 20 TO 30 KT. SEAS 6 FT. 
.SAT...NW WIND 35 KT. SEAS 10 FT. 
.SAT NIGHT...NW WIND 40 KT. SEAS 14 FT. 
.SUN AND SUN NIGHT...W WIND 40 KT. SEAS 14 FT. 
.MON...SW WIND 40 KT. SEAS 18 FT. 
.TUE...SE WIND 30 KT. SEAS 14 FT. 
.WED...N WIND 30 KT. SEAS 13 FT.  

$$

PKZ414-021500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT FRI APR 1 2011

...STORM WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E WIND 20 KT INCREASING TO NE 35 KT AFTER MIDNIGHT. SEAS
IN ICE FREE WATERS 5 FT BUILDING TO 11 FT AFTER MIDNIGHT. HEAVY
FREEZING SPRAY. 
.SAT...NE WIND 40 KT. SEAS IN ICE FREE WATERS 13 FT. SNOW. HEAVY
FREEZING SPRAY. 
.SAT NIGHT...NW WIND 50 KT. SEAS IN ICE FREE WATERS 17 FT. SNOW.
HEAVY FREEZING SPRAY. 
.SUN...NW WIND 50 KT. SEAS IN ICE FREE WATERS 19 FT. 
.SUN NIGHT...W WIND 40 KT. SEAS IN ICE FREE WATERS 16 FT.
.MON...SW WIND 35 KT. SEAS IN ICE FREE WATERS 14 FT. 
.TUE...S WIND 30 KT. SEAS IN ICE FREE WATERS 13 FT. 
.WED...SE WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.  

$$

206 
FZAK62 PAFC 021156
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT APR 2 2011

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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.

PKZ499-030300-
400 AM AKDT SAT APR 2 2011
.SYNOPSIS FOR CENTRAL BERING SEA...

AN ELONGATED TROUGH OF LOW PRESSURE NEAR 57N 176E WILL DRIFT SOUTH
AND DISSIPATE SAT EVENING. A 971 MB LOW NEAR 52N 163W WILL MOVE TO
55N 160W AT 968 MB SAT EVENING...THEN MOVE TO 55N 155W AT 971 MB SUN
MORNING BEFORE TRACKING INTO THE GULF OF AK. A LOW OVER NORTHERN
JAPAN WILL MOVE TO 54N 168E AT 982 MB SUN MORNING...THEN TRACK TO
NEAR 58N 174W AT 985 MB MON MORNING. 

$$

PKZ411-030300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SAT APR 2 2011

...GALE WARNING SUNDAY...

.TODAY...W WIND 20 TO 30 KT EXCEPT E WIND 25 KT N OF 57N. SEAS 9 FT. 
.TONIGHT...W WIND 15 TO 25 KT EXCEPT VARIABLE WIND 10 KT N OF 56N.
SEAS 9 FT. SNOW.
.SUN...S WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS 9 TO
13 FT. SNOW AND RAIN. 
.SUN NIGHT...SW WIND 45 KT. SEAS 16 FT. 
.MON...N WIND 40 KT. SEAS 20 FT. 
.TUE...E WIND 30 KT. SEAS 11 FT. 
.WED...N WIND 40 KT. SEAS 19 FT.  

$$

PKZ412-030300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SAT APR 2 2011

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...NE WIND 15 TO 25 KT. SEAS 7 FT. FREEZING SPRAY. 
.TONIGHT...N WIND 35 KT EXCEPT NW WIND 20 KT W OF 176W. SEAS 9 FT.
FREEZING SPRAY. 
.SUN...W OF 176W...N WIND 15 KT BECOMING E 30 KT IN THE AFTERNOON. E
OF 176W...N WIND 25 TO 35 KT. SEAS 10 FT. SNOW. FREEZING SPRAY. 
.SUN NIGHT...SE WIND 40 KT. SEAS 12 FT. 
.MON...NW WIND 30 KT. SEAS 16 FT. 
.TUE...NE WIND 35 KT. SEAS 13 FT. 
.WED...NE WIND 45 KT. SEAS 22 FT.  

$$

PKZ413-030300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SAT APR 2 2011

...GALE WARNING THROUGH SUNDAY...

.TODAY...NW WIND 25 TO 35 KT. SEAS 5 TO 9 FT. 
.TONIGHT...NW WIND 30 TO 40 KT. SEAS 12 FT. 
.SUN...W OF 176W...VARIABLE WIND 15 KT BECOMING S 30 TO 40 KT IN THE
AFTERNOON. E OF 176W...W WIND 40 KT DIMINISHING TO 25 KT IN THE
AFTERNOON. SEAS 9 TO 13 FT. RAIN AND SNOW. 
.SUN NIGHT...SW WIND 35 KT. SEAS 15 FT. 
.MON...W WIND 45 KT. SEAS 25 FT. 
.TUE...E WIND 35 KT. SEAS 14 FT. 
.WED...N WIND 40 KT. SEAS 23 FT.  

$$

PKZ414-030300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SAT APR 2 2011

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

.TODAY...NE WIND 30 TO 40 KT. SEAS 7 TO 11 FT. SNOW. HEAVY FREEZING
SPRAY NEAR THE ICE EDGE. 
.TONIGHT...NW WIND 40 TO 50 KT. SEAS 13 TO 17 FT. SNOW. FREEZING
SPRAY NEAR THE ICE EDGE. 
.SUN...NW WIND 40 TO 50 KT. SEAS 16 TO 20 FT. FREEZING SPRAY NEAR THE
ICE EDGE. 
.SUN NIGHT...W WIND 35 KT. SEAS 15 FT. 
.MON...W WIND 40 KT. SEAS 20 FT. 
.TUE...E WIND 30 KT. SEAS 16 FT. 
.WED...SE WIND 35 KT. SEAS 14 FT.  

$$

443 
FZAK62 PAFC 022312
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT APR 2 2011

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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.

PKZ499-031500-
400 PM AKDT SAT APR 2 2011
.SYNOPSIS FOR CENTRAL BERING SEA...
A 966 MB NORTH PACIFIC LOW WILL MOVE TO NEAR 55N 158W SAT
NIGHT...THEN WEAKEN TO 988 MB AS IT MOVES EAST INTO THE GULF OF
ALASKA SUN NIGHT. A 988 MB NORTH PACIFIC LOW WILL DEVELOP NEAR 53N
166E SAT NIGHT...THEN STRENGTHEN TO 976 MB NEAR 54N 169E SUNDAY
EVENING. A FRONTAL BOUNDARY ASSOCIATED WITH THIS LOW WILL STRETCH
EAST ACROSS THE CENTRAL BERING THROUGH MON AFTERNOON. 
$$

PKZ411-031500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT APR 2 2011

...STORM WARNING SUNDAY...

.TONIGHT...SOUTH OF 56N...W WIND 20 KT BECOMING SE 25 KT TOWARDS
MORNING. SEAS 9 FT. NORTH OF 56N...E WIND 15 TO 25 KT. SEAS 7 FT. 
.SUN...SE WIND 35 TO 50 KT. SEAS 13 FT. SNOW AND RAIN. 
.SUN NIGHT...E TO S WIND 45 KT. SEAS 17 FT. RAIN AND SNOW. 
.MON...NE TO NW WIND 45 KT. SEAS 21 FT. 
.MON NIGHT...E WIND 25 KT. SEAS 18 FT. 
.TUE...E WIND 30 KT. SEAS 13 FT. 
.WED...N WIND 40 KT. SEAS 21 FT. 
.THU...NW WIND 25 KT. SEAS 20 FT.  
$$

PKZ412-031500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT APR 2 2011

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

.TONIGHT...N WIND 20 TO 35 KT...STRONGEST EAST OF 174W. SEAS 9 FT.
HEAVY FREEZING SPRAY. 
.SUN...NW WIND 20 TO 35 KT...EXCEPT BECOMING E WEST OF 175W IN THE
AFTERNOON. SEAS 10 FT. SNOW. HEAVY FREEZING SPRAY NORTH OF 57N. 
.SUN NIGHT...E WIND 30 TO 45 KT...BECOMING W 25 TO 40 KT S OF 57N
AFTER MIDNIGHT. SEAS 11 FT. SNOW. HEAVY FREEZING SPRAY NORTH OF 57N. 
.MON...NE WIND 35 KT. SEAS 14 FT. 
.MON NIGHT...N WIND 25 KT. SEAS 18 FT. 
.TUE...E WIND 35 KT. SEAS 13 FT. 
.WED...NE WIND 45 KT. SEAS 24 FT. 
.THU...NW WIND 35 KT. SEAS 20 FT.  
$$

PKZ413-031500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT APR 2 2011

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW WIND 25 TO 40 KT...STRONGEST EAST OF 174W. SEAS 11 FT. 
.SUN...NW WIND 25 TO 40 KT...BECOMING SE BY LATE AFTERNOON WEST OF
173W. SEAS 11 FT. SNOW AND RAIN. 
.SUN NIGHT...SW WIND 30 TO 40 KT. SEAS 13 FT. RAIN AND SNOW. 
.MON...W WIND 50 KT. SEAS 26 FT. 
.MON NIGHT...W WIND 45 KT. SEAS 25 FT. 
.TUE...E WIND 35 KT. SEAS 14 FT. 
.WED...N WIND 40 KT. SEAS 23 FT. 
.THU...NW WIND 35 KT. SEAS 18 FT.  
$$

PKZ414-031500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT APR 2 2011

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

.TONIGHT...NW WIND 35 TO 50 KT. SEAS 15 FT. SNOW. HEAVY FREEZING
SPRAY NORTH OF 56N. 
.SUN...NW WIND 35 TO 50 KT. SEAS 17 FT. HEAVY FREEZING SPRAY NORTH OF
56N. 
.SUN NIGHT...W WIND 30 TO 40 KT...EXCEPT E 25 KT NORTH OF 57N AND
WEST OF 168W. SEAS 14 FT. SNOW AND RAIN. HEAVY FREEZING SPRAY NORTH
OF 56N. 
.MON...W WIND 40 KT. SEAS 16 FT. 
.MON NIGHT...NW WIND 45 KT. SEAS 20 FT. 
.TUE...NE WIND 30 KT. SEAS 17 FT. 
.WED...SE WIND 35 KT. SEAS 14 FT. 
.THU...NW WIND 35 KT. SEAS 14 FT.  
$$

884 
FZAK62 PAFC 030227 CCA
OFFALU

OFFSHORE WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
527 PM AKDT SAT APR 2 2011

CORRECTED ZONE 412

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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.

PKZ499-031500-
400 PM AKDT SAT APR 2 2011
.SYNOPSIS FOR CENTRAL BERING SEA...
A 966 MB NORTH PACIFIC LOW WILL MOVE TO NEAR 55N 158W SAT
NIGHT...THEN WEAKEN TO 988 MB AS IT MOVES EAST INTO THE GULF OF
ALASKA SUN NIGHT. A 988 MB NORTH PACIFIC LOW WILL DEVELOP NEAR 53N
166E SAT NIGHT...THEN STRENGTHEN TO 976 MB NEAR 54N 169E SUNDAY
EVENING. A FRONTAL BOUNDARY ASSOCIATED WITH THIS LOW WILL STRETCH
EAST ACROSS THE CENTRAL BERING THROUGH MON AFTERNOON. 
$$

PKZ411-031500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT APR 2 2011

...STORM WARNING SUNDAY...

.TONIGHT...SOUTH OF 56N...W WIND 20 KT BECOMING SE 25 KT TOWARDS
MORNING. SEAS 9 FT. NORTH OF 56N...E WIND 15 TO 25 KT. SEAS 7 FT. 
.SUN...SE WIND 35 TO 50 KT. SEAS 13 FT. SNOW AND RAIN. 
.SUN NIGHT...E TO S WIND 45 KT. SEAS 17 FT. RAIN AND SNOW. 
.MON...NE TO NW WIND 45 KT. SEAS 21 FT. 
.MON NIGHT...E WIND 25 KT. SEAS 18 FT. 
.TUE...E WIND 30 KT. SEAS 13 FT. 
.WED...N WIND 40 KT. SEAS 21 FT. 
.THU...NW WIND 25 KT. SEAS 20 FT.  
$$

PKZ412-031500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT APR 2 2011

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

.TONIGHT...N WIND 20 TO 35 KT...STRONGEST EAST OF 174W. SEAS 9 FT.
HEAVY FREEZING SPRAY. 
.SUN...NW WIND 20 TO 35 KT...EXCEPT BECOMING E WEST OF 175W IN THE
AFTERNOON. SEAS 10 FT. SNOW. HEAVY FREEZING SPRAY NORTH OF 57N. 
.SUN NIGHT...E WIND 30 TO 45 KT...BECOMING W 25 TO 40 KT S OF 57N
AFTER MIDNIGHT. SEAS 11 FT. SNOW. HEAVY FREEZING SPRAY NORTH OF 57N. 
.MON...NE WIND 35 KT. SEAS 14 FT. 
.MON NIGHT...N WIND 25 KT. SEAS 18 FT. 
.TUE...E WIND 35 KT. SEAS 13 FT. 
.WED...NE WIND 45 KT. SEAS 24 FT. 
.THU...NW WIND 35 KT. SEAS 20 FT.  
$$

PKZ413-031500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT APR 2 2011

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW WIND 25 TO 40 KT...STRONGEST EAST OF 174W. SEAS 11 FT. 
.SUN...NW WIND 25 TO 40 KT...BECOMING SE BY LATE AFTERNOON WEST OF
173W. SEAS 11 FT. SNOW AND RAIN. 
.SUN NIGHT...SW WIND 30 TO 40 KT. SEAS 13 FT. RAIN AND SNOW. 
.MON...W WIND 50 KT. SEAS 26 FT. 
.MON NIGHT...W WIND 45 KT. SEAS 25 FT. 
.TUE...E WIND 35 KT. SEAS 14 FT. 
.WED...N WIND 40 KT. SEAS 23 FT. 
.THU...NW WIND 35 KT. SEAS 18 FT.  
$$

PKZ414-031500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT APR 2 2011

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

.TONIGHT...NW WIND 35 TO 50 KT. SEAS 15 FT. SNOW. HEAVY FREEZING
SPRAY NORTH OF 56N. 
.SUN...NW WIND 35 TO 50 KT. SEAS 17 FT. HEAVY FREEZING SPRAY NORTH OF
56N. 
.SUN NIGHT...W WIND 30 TO 40 KT...EXCEPT E 25 KT NORTH OF 57N AND
WEST OF 168W. SEAS 14 FT. SNOW AND RAIN. HEAVY FREEZING SPRAY NORTH
OF 56N. 
.MON...W WIND 40 KT. SEAS 16 FT. 
.MON NIGHT...NW WIND 45 KT. SEAS 20 FT. 
.TUE...NE WIND 30 KT. SEAS 17 FT. 
.WED...SE WIND 35 KT. SEAS 14 FT. 
.THU...NW WIND 35 KT. SEAS 14 FT.  
$$

591 
FZAK62 PAFC 031102
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SUN APR 3 2011

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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.

PKZ499-040300-
400 AM AKDT SUN APR 3 2011
.SYNOPSIS FOR CENTRAL BERING SEA...

A 968 MB LOW NEAR 55N 157W WILL TRACK INTO THE SOUTHERN GULF OF AK
EARLY MON MORNING. A 987 MB LOW NEAR 53N 163E WILL MOVE TO 55N 169E
AT 977 MB SUN EVENING...THEN WEAKEN AS IT MOVES TO 56N 177W MON
AFTERNOON BEFORE DISSIPATING. AN ASSOCIATED FRONT NEAR THE WESTERN
BERING WILL STRETCH EAST ACROSS THE CENTRAL BERING THROUGH MON
AFTERNOON.

$$

PKZ411-040300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SUN APR 3 2011

...STORM WARNING THROUGH MONDAY...

.TODAY...SE WIND 40 TO 50 KT. SEAS 13 FT. SNOW AND RAIN. 
.TONIGHT...N OF 56N...E WIND 40 TO 50 KT. S OF 56N...S WIND 35 TO 45
KT. SEAS 16 FT. RAIN AND SNOW. 
.MON...N OF 56N...NE WIND 30 TO 40 KT. S OF 56N...W WIND 40 TO 50 KT.
SEAS 15 TO 19 FT. 
.MON NIGHT...SE WIND 25 KT. SEAS 17 FT. 
.TUE...E WIND 45 KT. SEAS 19 FT. 
.WED...NE WIND 50 KT. SEAS 27 FT. 
.THU...N WIND 40 KT. SEAS 25 FT.  

$$

PKZ412-040300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SUN APR 3 2011

...GALE WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...E OF 176W...NW WIND 25 TO 35 KT. W OF 176W...VARIABLE WIND
15 KT BECOMING E 25 TO 35 KT IN THE AFTERNOON. SEAS 9 FT. SNOW. HEAVY
FREEZING SPRAY NEAR THE ICE EDGE. 
.TONIGHT...E WIND 30 TO 40 KT. SEAS 8 TO 11 FT. SNOW AND RAIN. HEAVY
FREEZING SPRAY NEAR THE ICE EDGE. 
.MON...NE WIND 35 KT EXCEPT SW WIND 25 KT S OF 57N. SEAS 9 TO 13 FT.
HEAVY FREEZING SPRAY NEAR THE ICE EDGE. 
.MON NIGHT...N WIND 25 KT. SEAS 16 FT. 
.TUE...E WIND 45 KT. SEAS 15 FT. 
.WED...E WIND 55 KT. SEAS 25 FT. 
.THU...N WIND 45 KT. SEAS 23 FT.  

$$

PKZ413-040300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SUN APR 3 2011

...STORM WARNING MONDAY...

.TODAY...W OF 176W...S WIND 15 TO 25 KT INCREASING TO 35 TO 45 KT IN
THE AFTERNOON. E OF 176W...S WIND 40 KT DIMINISHING TO 20 KT IN THE
AFTERNOON. SEAS 10 FT. SNOW AND RAIN. 
.TONIGHT...SW WIND 30 TO 40 KT. SEAS 9 TO 13 FT. RAIN AND SNOW. 
.MON...SW WIND 50 KT. SEAS 18 FT BUILDING TO 25 FT IN THE AFTERNOON.
RAIN AND SNOW. 
.MON NIGHT...W WIND 45 KT. SEAS 24 FT. 
.TUE AND WED...E WIND 45 KT. SEAS 18 FT.  
.THU...NW WIND 40 KT. SEAS 23 FT.  

$$

PKZ414-040300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SUN APR 3 2011

...STORM WARNING TODAY...

.TODAY...NW WIND 50 KT EXCEPT 25 TO 35 KT N OF 57N. SEAS IN ICE FREE
WATERS 14 TO 18 FT. FREEZING SPRAY ALONG THE ICE EDGE. 
.TONIGHT...W WIND 25 TO 35 KT EXCEPT BECOMING VARIABLE 15 KT N OF 57N
AFTER MIDNIGHT. SEAS IN ICE FREE WATERS 9 TO 13 FT. SNOW AND RAIN. 
.MON...SW WIND 40 KT EXCEPT NW 10 TO 20 KT. SEAS IN ICE FREE WATERS
11 TO 16 FT. SNOW AND RAIN. 
.MON NIGHT...NW WIND 45 KT. SEAS IN ICE FREE WATERS 18 FT. 
.TUE...NE WIND 35 KT. SEAS IN ICE FREE WATERS 16 FT. 
.WED...SE WIND 45 KT. SEAS IN ICE FREE WATERS 19 FT. 
.THU...W WIND 40 KT. SEAS IN ICE FREE WATERS 21 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
140 PM AKDT THU MAR 31 2011

.ANALYSIS AND UPPER LEVELS...THERE ARE NUMEROUS LOW AMPLITUDE WAVES
EMBEDDED WITHIN THE LONG-WAVE TROUGH WHICH EXTENDS FROM EASTERN
ASIA TO WESTERN CANADA. THE SHORT-WAVE TROUGH WHICH BROUGHT SNOW
TO ANCHORAGE AND VICINITY THIS MORNING IS WEAKENING AS IT CONTINUES
EASTWARD ACROSS SOUTHCENTRAL ALASKA. MIDDLETON ISLAND RADAR ALSO
INDICATES THE PRESENCE OF A WEAK SURFACE LOW IN PRINCE WILLIAM SOUND
WHICH IS CONTINUING TO PRODUCE NUMEROUS SHOWERS. A SHORT-WAVE RIDGE
IS BUILDING IN BEHIND THE SOUTHCENTRAL TROUGH WHICH WILL CREATE
FAVORABLE CONDITIONS FOR FOG AS IT MOVES OVER SOUTHCENTRAL TONIGHT.

THE NEXT TROUGH OF INTEREST IS AN EAST-WEST ORIENTED TROUGH SOUTH
OF THE ALEUTIANS. AS A TROUGH BEGINS TO DIG FURTHER WEST THE EAST
SIDE OF THIS TROUGH IS BEGINNING TO LIFT NORTHWARD TOWARD ALASKA
AND COULD LEAD TO A LIGHT SNOW EVENT OVER SOUTHCENTRAL FRIDAY NIGHT.

LOOKING EVEN FURTHER SOUTH ALONG THE SUBTROPICAL JET IS A DEVELOPING
LOW WILL IS EXPECTED TO IMPACT THE ALASKA REGION THIS WEEKEND.

.MODEL DISCUSSION...MODELS ARE ALL IN DECENT AGREEMENT WITH HANDLING
OF SYNOPTIC SCALE FEATURES OVER THE NEXT FEW DAYS AND SHOW GOOD
RUN-TO-RUN CONSISTENCY. THIS HAS RESULTED IN INCREASING CONFIDENCE
IN LIGHT SNOW OVER PORTIONS OF SOUTHCENTRAL ALASKA FRIDAY NIGHT SO
WILL INCREASE POPS AND MENTION LIGHT ACCUMULATION. OTHERWISE...ONLY
MINOR ADJUSTMENTS WILL BE MADE TO EXISTING FORECASTS.

.SHORT TERM FORECAST...

SOUTHCENTRAL ALASKA...SHOWERS WILL LINGER OVER THE COPPER RIVER
BASIN UNTIL THE UPPER TROUGH EXITS LATE TONIGHT. SHOWERS WILL
ALSO PERSIST IN THE PRINCE WILLIAM SOUND AREA AS THE WEAK LOW
WEAKENS OVER THE NORTHERN GULF. MEANWHILE...A SURFACE HIGH WILL
BUILD INTO INTERIOR ALASKA WHICH SHOULD MAINTAIN A TIGHT ENOUGH
GRAIDENT TO PREVENT WIDESPREAD FOG TONIGHT. STILL...WITH MELTING
SNOW AT THE SURFACE THIS AFTERNOON AND REMNANT LOW LEVEL
MOISTURE...EXPECT LOCALIZED AREAS OF FOG WILL DEVELOP. THE UPPER
LEVEL RIDGE WILL MOVE OVERHEAD FRIDAY AND SOUTHERLY FLOW ON THE
BACK SIDE OF IT WILL ADVECT MOISTURE FROM THE NORTHERN GULF AND
PRINCE WILLIAM SOUND NORTHWARD ACROSS SOUTHCENTRAL. THE UPPER
TROUGH MENTIONED IN THE ANALYSIS SECTION ABOVE WILL THEN MOVE
THROUGH FRIDAY NIGHT INTO SATURDAY MORNING LIKELY RESULTING IN
LIGHT SNOW MAINLY ON THE SOUTH AND WEST SIDE OF MOUNTAINS INCLUDING
ANCHORAGE AND THE MATANUSKA VALLEY. A MAJOR PACIFIC STORM WILL
FOLLOW...BUT THE ACTUAL LOW CENTER WILL REMAIN SOUTH OF THE ALASKA
PENINSULA. THE GULF AND SOUTHCENTRAL WILL BE IMPACTED BY A STRONG
OCCLUDED FRONT OVER THE WEEKEND. THIS FRONT WILL WEAKEN AS IT MOVES
TOWARD SOUTHCENTRAL SO THE BULK OF PRECIPITATION IS EXPECTED ALONG
THE GULF COAST.

SOUTHWEST ALASKA...CONDITIONS WILL REMAIN BENIGN OVER SOUTHWEST
ALASKA UNTIL EARLY SATURDAY WHEN A POWERFUL PACIFIC LOW APPROACHES
THE ALASKA PENINSULA. STRONG EASTERLY FLOW ALONG THE OCCLUDED FRONT
WILL RESULT IN SIGNIFICANT DOWNSLOPE DRYING SO WOULD EXPECT THE
BULK OF PRECIPITATION TO FALL IN UPSLOPE AREAS FROM DILLINGHAM
NORTH AND WEST. AS THE FRONT MOVES INTO BRISTOL BAY DURING THE
SATURDAY PRECIPITATION WILL MIX WITH OR CHANGE TO SNOW. ANY
PRECIPITATION THAT MAKES IT UP TO THE KUSKOKWIM DELTA AND KUSKOKWIM
VALLEY ZONES WILL STAY ALL SNOW. THERE COULD BE SOME BLOWING SNOW
ISSUES IN THE KUSKOKWIM DELTA BUT IT IS TOO EARLY TO NAIL DOWN
WHETHER ENOUGH SNOW WILL ACTUALLY FALL TO CAUSE PROBLEMS.

BERING SEA/ALEUTIANS...CURRENT FORECASTS LOOK ON TRACK FOR EXPECTED
WEATHER WITH THE MAJOR PACIFIC LOW THIS WEEKEND AS IT MOVES TO
SOUTH OF THE SOUTHERN ALASKA PENINSULA. THERE IS SOME POTENTIAL
FOR BLIZZARD CONDITIONS FROM THE PRIBILOF ISLANDS TO THE EASTERN
ALEUTIANS SATURDAY NIGHT INTO SUNDAY ON THE BACK SIDE OF THE LOW.
MODELS ARE INDICATING A SHORT-WAVE TROUGH MOVING IN FROM THE WEST
PROVIDING ADDITIONAL VERTICAL MOTION AND FEEDING ARCTIC AIR INTO
THE SYSTEM HELPING TO STRENGTHEN THE OCCLUDED FRONT. IT IS TOO SOON
TO ISSUE ANYTHING BUT WILL RE-EVALUATE THIS POTENTIAL OVER THE NEXT
COUPLE DAYS.

.LONG TERM FORECAST...THE STRONG LOW SOUTH OF THE ALASKA PENINSULA
SATURDAY WILL TRACK EASTWARD ACROSS THE GULF SUNDAY AND MONDAY
WHICH WILL DRY OUT THE EASTERN BERING TO SOUTHERN MAINLAND REGION.
THE NEXT MAJOR SYSTEM WILL TRACK INTO THE WESTERN BERING SUNDAY
INTO MONDAY AS A TROUGH OVER THE FAR NORTHWEST PACIFIC AMPLIFIES
AND BENDS THE SUBTROPICAL JET NORTHWARD. THE MEDIUM RANGE MODELS
HAVE QUITE A BIT OF SPREAD IN THE ULTIMATE DESTINATION OF THIS
LOW...HOWEVER AS PER THE HPC ALASKA EXTENDED FORECAST DISCUSSION
MOST OF THE LATEST GUIDANCE FAVORS THE ECMWF SOLUTION OF BRINGING
THIS LOW TO WESTERN ALASKA. LOOKS LIKE AN ACTIVE PATTERN SETS UP
FOR THE REST OF NEXT WEEK AS MEAN TROUGH SETS UP OVER BERING SEA
WITH A STORM TRACK FROM THE PACIFIC NORTHEASTWARD TOWARD THE
EASTERN BERING AND MAINLAND ALASKA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE WARNING...150 155 165 170 171 172.
FIRE WEATHER...NONE.

SEB MAR 11