Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 242326
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
230 PM AKST WEDNESDAY 24 DECEMBER 2014

FORECAST VALID...MONDAY 29 DECEMBER 2014

ANALYSIS CONFIDENCE...HIGH

SYNOPSIS...A SERIES OF LOW PRESSURE SYSTEMS WILL CONTINUE ACROSS THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY WITH A FRONT PUSHING
ACROSS THE BERING SEA LATE THURSDAY AND FRIDAY. HIGH PRESSURE WILL
REMAIN ACROSS THE BEAUFORT AND CHUKCHI SEAS THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-

THE MAIN ICE EDGE LIES FROM THE ALASKA COAST NEAR 58.6M 161.5W TO
60.1N 167.9W TO 62.9N 168.4W TO 63.0N 176.1W TO 64.5N 176.9W AND
CONTINUES ALONG THE RUSSIAN COAST. THE ICE EDGE IS MAINLY OPEN
WATER. NEW AND YOUNG SEA ICE ALSO LIES IN THE SHALLOW WATERS OF
NORTHER BRISTOL BAY.

FORECAST THROUGH MONDAY FOR THE BERING SEA...NORTHEASTERLY FLOW WILL
PERSIST THROUGH FRIDAY ALONG MUCH OF THE BERING SEA ICE EDGE WITH
SOUTHEASTERLY FLOW DEVELOPING LATE FRIDAY THROUGH THE WEEKEND. THE
ICE EDGE NORTH OF NUNIVAK ISLAND IS EXPECTED TO EXPAND TO THE WEST
SOUTHWEST 25 TO 35 NM THROUGH MONDAY. MINIMAL CHANGES ARE EXPECTED
TO THE ICE EDGE SOUTH OF NUNIVAK ISLAND THROUGH MONDAY.

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

COOK INLET ANALYSIS CONFIDENCE...LOW.

SYNOPSIS FOR COOK INLET..A BROAD TROUGH OF LOW PRESSURE WILL
CONTINUE ACROSS COOK INLET THROUGH FRIDAY. A RIDGE OF HIGH PRESSURE
THEN BUILDS ACROSS THE REGION THROUGH MONDAY.

5 TO 9 TENTHS NEW AND YOUNG ICE IS PRESENT IN UPPER COOK INLET FROM
NEAR THE SUSITNA RIVER DELTA ACROSS THE INLET TO POINT POSSESSION.

FORECAST FOR COOK INLET THROUGH MONDAY...NEW SEA ICE IS EXPECTED TO
CONTINUE FORMING IN UPPER COOK INLET THROUGH SATURDAY...THEN REMAIN
CONSISTENT SUNDAY THROUGH MONDAY OWING TO DAYTIME TEMPERATURES
INCREASING ABOVE FREEZING.

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



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