Sea Ice Advisory


FZAK80 PAFC 242333
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS  
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
232 PM AKDT MONDAY 24 NOVEMBER 2014 

FORECAST VALID...SATURDAY 29 NOVEMBER 2014

ANALYSIS CONFIDENCE...MODERATE.
                      
SYNOPSIS...A SERIES OF LARGE LOW PRESSURE SYSTEMS WILL PASS FROM THE 
BERING SEA OVER TO THE GULF OF ALASKA THROUGH SATURDAY. HIGH 
PRESSURE WILL REMAIN OVER MUCH OF THE CHUKCHI SEA AND BEAUFORT SEA 
THROUGH SATURDAY. 

-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 67.0N 164.8W TO 68.4N 
167.3W TO 70.9N 165.4W TO 72.1N 168.4W TO 72.3N 175.4W TO 71.2N 
175.1W AND CONTINUES INTO THE RUSSIAN ARCTIC. THE ICE EDGE RANGES 
FROM OPEN WATER TO 9 TENTHS NEW AND YOUNG SEA ICE. 
 
FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...EASTERLY TO 
NORTHEASTERLY FLOW WILL PERSIST THROUGH WEDNESDAY. AFTER A BRIEF 
PERIOD OF SOUTHEASTERLY WINDS ON THURSDAY...FLOW WILL RETURN TO 
BEING EASTERLY THROUGH SATURDAY. 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 SATURDAY FOR THE BERING SEA...NORTHEASTERLY FLOW 
WILL BECOME SOUTHEAST TUESDAY NIGHT AND PERSIST OVER MUCH OF THE 
ALASKA WEST COAST OF THE BERING SEA THROUGH SATURDAY. THE OFFSHORE 
FLOW AND COOLER TEMPERATURES ARE EXPECTED TO AID IN NEW SEA ICE 
FORMATION FROM THE ALASKA COAST NEAR NUNIVAK ISLAND UP TO NORTON 
SOUND THROUGH TUESDAY...THEN AS WARMER AIR MOVES NORTHWARD SEA ICE 
ALONG THE ALASKA COAST WILL LIKELY CEASE GROWING BUT WILL MOVE 
NORTHWARD UP TO 20 NM THROUGH SATURDAY.

$$