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FZAK80 PAFC 262220
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS  
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
130 PM AKDT WEDNESDAY 26 NOVEMBER 2014 

FORECAST VALID...MONDAY 01 DECEMBER 2014

ANALYSIS CONFIDENCE...MODERATE.
                      
SYNOPSIS... A SERIES OF LOW PRESSURE SYSTEMS WILL PASS THROUGH THE 
BERING SEA THROUGH THURSDAY EVENING BEFORE HIGH PRESSURE BUILDS 
ACROSS THE BERING SEA BY SATURDAY AFTERNOON. THE AFOREMENTIONED LOWS 
WILL PUSH THROUGH THE BERING SEA INTO THE SOUTHERN CHUKCHI SEA LATE 
THIS EVENING AND AGAIN THURSDAY EVENING. HIGH PRESSURE WILL PERSIST 
OVER THE BEAUFORT SEA THROUGH SATURDAY AFTERNOON BEFORE A LOW 
PRESSURE SYSTEM OVER THE ARCTIC AND ASSOCIATED FRONT DROP SOUTH ON 
SUNDAY.

-ARCTIC OCEAN-

ICE COVERED.

-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ215-KOTZEBUE SOUND-

THE MAIN ICE EDGE LIES FROM NEAR WALES TO 67.6N 165.4W TO 68.4N 
167.4W TO 70.4N 166.6W TO 72.1N 170.0W TO 72.2N 175.4W TO 71.2N 
175.2W TO 70.2N 179.6W AND CONTINUES INTO THE RUSSIAN ARCTIC. THE 
ICE EDGE RANGES FROM OPEN WATER TO 9 TENTHS NEW AND YOUNG SEA ICE. 
 
FORECAST THROUGH MONDAY FOR THE CHUKCHI SEA...MODERATE SOUTH TO 
SOUTHEASTERLY FLOW WILL PERSIST THROUGH SATURDAY MORNING BEFORE 
WINDS BEGIN TO BECOME LIGHT AND SHIFT TO THE EAST BY SUNDAY MORNING. 
THE OVERALL ICE EDGE IS EXPECTED TO SHIFT 25 TO 40 NM TO THE WEST-
SOUTHWEST THROUGH SATURDAY. ICE ALONG THE WEST COAST OF ALASKA WILL 
LIKELY EXPAND UP TO 15 MILES FROM THE COAST THROUGH SATURDAY.

-BEAUFORT SEA-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

ICE COVERED. 

-BERING SEA-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-

THE MAIN ICE EDGE LIES UP TO 25 NM OFF THE ALASKA WEST COAST FROM 
THE KUSKOKWIM DELTA TO NORTON SOUND. 

FORECAST THROUGH MONDAY FOR THE BERING SEA...MODERATE TO STRONG 
SOUTH TO SOUTHEASTERLY WINDS WILL PERSIST THROUGH FRIDAY MORNING 
BEFORE WINDS BEGIN TO BECOME LIGHT AND SHIFT TO WEST BY FRIDAY 
EVENING. WINDS WILL THEN BECOME MODERATE TO STRONG ONCE AGAIN FROM 
THE SOUTHEAST SUNDAY MORNING AND CONTINUE THROUGH MONDAY. THE PERIOD 
OF STRONGER LASTING THROUGH FRIDAY MORNING WILL INHIBIT SIGNIFICANT 
ICE GROWTH...HOWEVER NEW ICE IS STILL EXPECTED TO DEVELOP FROM THE 
ALASKA COAST NEAR NUNIVAK ISLAND UP TO NORTON SOUND SUNDAY MORNING. 
A STRONG LOW IN THE BERING SEA WILL BRING WARMER TEMPERATURES TOWARD 
THE ALASKA COAST SUNDAY AFTERNOON AND CONTINUE THROUGH MONDAY. 
OVERALL...THE ICE EDGE IS EXPECTED TO REMAIN NEAR STATIONARY OR 
POSSIBLY MOVE NORTHWARD UP TO 10 NM.

$$



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