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FZAK80 PAFC 022345
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
243 PM AKST MONDAY 2 MARCH 2015 

FORECAST VALID...SATURDAY 7 MARCH 2015

ANALYSIS CONFIDENCE...MODERATE TO HIGH
                      
SYNOPSIS...A SERIES OF LOWS WILL MOVE EASTWARD ACROSS THE BERING 
SEA...AS WELL AS THE CHUKCHI AND BEAUFORT SEAS THROUGH SATURDAY. 
EACH LOW AND ASSOCIATED FRONT WILL BRING COLDER AIR TO THE REGION 
DURING THIS TIME. 
 
-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN- 
PKZ235-POINT FRANKLIN TO CAPE HALKETT- 
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

ICE COVERED.

-BERING SEA-

PKZ215-KOTZEBUE SOUND-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-
PKZ160-BRISTOL BAY-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM THE ALASKA COAST NEAR CAPE NEWENHAM TO  
59.5N 162.3W TO 59N 169.7W TO 61.4N 174.9W TO 62.2N 177.5W AND 
CONTINUES ALONG THE RUSSIAN COAST. THE ICE EDGE IS MAINLY OPEN WATER 
TO 3 TENTHS NEW AND YOUNG SEA ICE.

FORECAST THROUGH SATURDAY FOR THE BERING SEA...WINDS WILL ALTERNATE 
BETWEEN SOUTHERLY AND WESTERLY/NORTHWESTERLY THROUGH SATURDAY AS 
EACH LOW MOVES EASTWARD. THE OVERALL ICE EDGE IS EXPECTED TO MOVE TO 
THE EAST-SOUTHEAST 20 TO 35 NM BY SATURDAY.

-COOK INLET-
PKZ140-COOK INLET NORTH OF KAMISHAK BAY AND ENGLISH BAY-

COOK INLET ANALYSIS CONFIDENCE...HIGH

SYNOPSIS FOR COOK INLET...A SERIES OF LOWS WILL MOVE EASTWARD ACROSS 
THE GULF OF ALASKA THROUGH SATURDAY. EACH LOW AND ASSOCIATED FRONT 
WILL BRING COLDER AIR TO THE REGION DURING THIS TIME.

THE MAIN ICE EDGE LIES FROM THE COAST NEAR 60.5N 151.3W TO 60.7N 
151.4W TO 60.3N 151.7W TO 60.2N 152.1W TO 60.3N 152.4W. THE ICE EDGE 
IS OPEN WATER. LOW CONCENTRATIONS OF ICE ARE ALSO PRESENT IN SHALLOW 
BAYS ALONG THE WEST COAST OF LOWER COOK INLET. 

FORECAST FOR COOK INLET THROUGH SATURDAY...DAYTIME TEMPERATURES ARE 
EXPECTED TO REMAIN ABOVE FREEZING THROUGH WEDNESDAY WITH OVERNIGHT 
LOWS IN THE 20S. TEMPERATURES WILL THEN BEGIN TO FALL THROUGH THE 
REST OF THE WEEK AND INTO THE WEEKEND. THE OVERALL ICE PACK WILL 
CONTINUE TO DECREASE IN THICKNESS AND CONCENTRATION THROUGH 
WEDNESDAY...BUT WILL LIKELY BEGIN TO INCREASE LATE THIS WEEK. 
ADDITIONAL STRIPS OF ICE MAY BE CAUGHT IN THE RIP NEAR THE WEST 
FORELAND DAILY WITH THE TIDE CHANGE. 

PLEASE NOTE...COOK INLET SEA ICE CHANGES SIGNIFICANTLY WITH THE 
TIDES.



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