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FZAK80 PAFC 202254
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
255 PM AKDT MONDAY 20 OCTOBER 2014 

FORECAST VALID...SATURDAY 25 OCTOBER 2014

ANALYSIS CONFIDENCE...MODERATE.

SYNOPSIS...HIGH PRESSURE WILL PERSIST OVER THE CHUKCHI AND BEAUFORT 
SEAS THROUGH THE END OF THE WEEK. A FRONT WILL MOVE THROUGH THE 
CHUKCHI SEA TUESDAY THROUGH SATURDAY AS A LOW MOVES EASTWARD ACROSS 
FAR EAST RUSSIA.
 
-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 A POINT ROUGHLY 50 NM NORTH OF BARROW TO 
72.6N 161.5W TO 73.7N 166.9W TO 73.1N 169.4W TO 73.1N 174.7W TO 
73.7N 178.9E TO 72.6N 178.8E TO 72.4N 175E AND CONTINUES WEST IN THE 
RUSSIAN ARCTIC. THE ICE EDGE CONSISTS OF OPEN WATER. NEW TO YOUNG 
ICE HAS FORMED IN THE PROTECTED WATERS OF THE ALASKA COAST FROM 
PEARD BAY TO POINT HOPE. NEW SEA ICE HAS ALSO FORMED IN THE SHALLOW 
WATERS OF KOTZEBUE SOUND AND THE PROTECTED WATERS NEAR KIVALINA.
 
FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...MODERATE TO STRONG 
EASTERLY FLOW IS EXPECTED TO PERSIST OVER THE CHUKCHI SEA ICE EDGE 
THROUGH FRIDAY. THE OVERALL ICE EDGE IS EXPECTED TO EXPAND TO THE 
WEST SOUTHWEST 25 TO 35 NM THROUGH SATURDAY. IN ADDITION NEW ICE IS 
EXPECTED TO CONTINUE FORMING IN THE PROTECTED SHALLOW AREAS ALONG 
THE COAST FROM KOTZEBUE SOUND UP TO PEARD BAY.

-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-SATURDAY

THE MAIN ICE EDGE LIES FROM THE SOUTHWEST COAST OF BANKS ISLAND TO 
72.6N 127.1W TO 71.4N 132.2W TO 70.9N 141.6W TO 71.6N 153.2W TO A 
POINT ROUGHLY 50 NM NORTH OF POINT BARROW. THE ICE EDGE IS MAINLY 
OPEN WATER. NEW SEA ICE LIES UP TO 100 NM OFF THE NORTHERN COASTLINE 
OF ALASKA EAST OF HARRISON BAY AND UP TO 8NM OFF THE NORTHERN 
COASTLINE OF ALASKA BETWEEN BARROW AND HARRISON BAY. 

FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...MODERATE EASTERLY 
TO NORTHEASTERLY FLOW WILL PERSIST OVER MUCH OF THE BEAUFORT SEA 
THROUGH SATURDAY. THE OVERALL ICE EDGE IS EXPECTED TO EXPAND 25 TO 
30 NM TO THE WEST SOUTHWEST THROUGH SATURDAY AND NEW SEA ICE IS 
EXPECTED TO CONTINUE FORMING WITHIN THE BARRIER ISLANDS OF THE 
ALASKA NORTH COAST AND IN LOCATIONS OF LIGHT WINDS. 

-BERING SEA-
PKZ200-NORTON SOUND-

NEW SEA ICE IS BEGINNING TO FORM IN THE SHALLOW PROTECTED WATERS OF 
NORTHERN NORTON SOUND FROM PORT SAFETY TO GOLOVIN TO KOYUK.

FORECAST THROUGH SATURDAY FOR THE BERING SEA...NEW SEA ICE IS 
EXPECTED TO SLOWLY CONTINUE FORMING IN THE SHALLOW PROTECTED WATERS 
OF NORTHERN NORTON SOUND THROUGH SATURDAY. 

$$

SCHRECK



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