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934
FZAK80 PAFC 262225
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
130 PM AKST MONDAY 26 JANUARY 2015

FORECAST VALID...SATURDAY 31 JANUARY 2015

ANALYSIS CONFIDENCE...MODERATE TO HIGH

SYNOPSIS...A LOW JUST SOUTH OF THE ALEUTIAN ISLAND CHAIN WILL SHIFT
OVER THE WESTERN GULF OF ALASKA TUESDAY... WHERE IT WILL PERSIST
THROUGH SATURDAY. A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE
NORTHERN BERING SEA WEDNESDAY... WHERE IT WILL PERSIST THROUGH
SATURDAY.

-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-

THE MAIN ICE EDGE LIES FROM THE ALASKA COAST NEAR 57.3N 158.1W TO
58.0N 158.1W TO 59.1N 169.2W TO 61.9N 170.9W TO 62.6N 177.8W AND
CONTINUES ALONG THE RUSSIAN COAST. THE ICE EDGE RANGES FROM OPEN
WATER TO 5 TENTHS NEW AND YOUNG ICE IN STRIPS.

FORECAST THROUGH SATURDAY FOR THE BERING SEA EAST OF 175W...EASTERLY
TO NORTHERLY FLOW IS EXPECTED TO PERSIST OVER THE ICE EDGE THROUGH
SATURDAY. THE ICE EDGE IS EXPECTED TO SHIFT TO THE SOUTHWEST 20 TO
35 NM THROUGH SATURDAY.

FORECAST THROUGH SATURDAY FOR THE BERING SEA WEST OF
175W...NORTHERLY FLOW IS EXPECTED TO BECOME SOUTHERLY FLOW BY
MIDWEEK... WITH SOUTHERLY TO SOUTHWESTERLY FLOW PERSISTING OVER MUCH
OF THE ICE EDGE THROUGH SATURDAY. THE ICE EDGE IS EXPECTED TO SHIFT
TO THE NORTHEAST 10 TO 25 NM THROUGH SATURDAY.

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

COOK INLET ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS FOR COOK INLET...A LARGE LOW WILL MOVE OVER THE GULF OF
ALASKA AND PERSIST TUESDAY THROUGH SATURDAY... WITH TEMPERATURES
EXPECTED TO SLOWLY INCREASE THROUGHOUT THIS WEEK.

THE MAIN ICE EDGE LIES BETWEEN THE EAST FORELAND AND WEST FORELAND
AS OPEN WATER... WITH LOW CONCENTRATIONS OF ICE IN SHALLOW BAYS
ALONG THE WEST COAST OF LOWER COOK INLET.

FORECAST FOR COOK INLET THROUGH SATURDAY...RELATIVELY COLD
TEMPERATURES SLOWLY INCREASING TO JUST BELOW THE FREEZING POINT BY
THE END OF THE WEEK ARE EXPECTED TO ALLOW SEA ICE CONCENTRATIONS TO
INCREASE WITHIN UPPER COOK INLET THROUGH SATURDAY. IT IS EXPECTED
THAT SEA ICE CONCENTRATIONS WITHIN UPPER COOK INLET WILL EXCEED 3
TENTHS BY SATURDAY... AND SOME SEA ICE MAY PASS INTO LOWER COOK
INLET NEAR THE WESTERN FORELAND MOVING WITH THE TIDES THROUGH
SATURDAY.

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

$$



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