FZAK80 PAFC 312223
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
225 PM AKDT FRIDAY 31 OCTOBER 2014 

FORECAST VALID...WEDNESDAY 5 NOVEMBER 2014

ANALYSIS CONFIDENCE...MODERATE.
                      
SYNOPSIS...HIGH PRESSURE WILL PERSIST OVER MUCH OF THE CHUKCHI AND 
BEAUFORT SEAS THROUGH WEDNESDAY. A SERIES OF LARGE STRONG LOWS WILL 
PASS ACROSS THE BERING SEA... CROSSING OVER TO THE GULF OF ALASKA 
THROUGH WEDNESDAY.

-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 WAINWRIGHT TO 71.2N 163.7W TO 72.0N 
165.2W TO 71.4N 169.3W TO 71.9N 171.6W TO 72.9N 171.4W AND CONTINUES 
INTO THE RUSSIAN ARCTIC. THE ICE EDGE IS MAINLY OPEN WATER. NEW AND 
YOUNG SEA ICE HAS FORMED IN THE PROTECTED SHALLOW WATERS ALONG THE 
ALASKA COAST FROM WALES UP TO WAINWRIGHT. NEW AND YOUNG SEA ICE HAS 
ALSO FORMED IN THE SHALLOW WATERS OF KOTZEBUE SOUND AND NEAR 
KIVALINA.
 
FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...EASTERLY TO 
NORTHERLY FLOW IS EXPECTED TO PERSIST OVER MUCH OF THE CHUKCHI SEA 
ICE EDGE THROUGH WEDNESDAY.  THE OVERALL ICE EDGE IS EXPECTED TO 
EXPAND TO THE SOUTHWEST 20 TO 40 NM THROUGH WEDNESDAY.

-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. 

FORECAST THROUGH WEDNESDAY FOR THE BEAUFORT SEA...AREAS OF LOWER 
CONCENTRATION NEW SEA ICE WILL CONTINUE TO INCREASE IN SEA ICE 
CONCENTRATION AND THICKNESS THROUGH WEDNESDAY.

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

NEW SEA ICE IS CONTINUING TO SLOWLY FORM IN THE SHALLOW PROTECTED 
WATERS ALONG THE ALASKA COAST INCLUDING WITHIN NORTON SOUND FROM 
NEAR EMMONAK TO NEAR PORT SAFETY.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...NEW SEA ICE IS 
EXPECTED TO SLOWLY CONTINUE FORMING IN THE SHALLOW PROTECTED WATERS 
ALONG THE ALASKA WEST COAST THROUGH WEDNESDAY.

$$ 
HEIM



National Weather Service Anchorage Forecast Office: http://pafc.arh.noaa.gov