Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 210024
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
324 PM AKST FRIDAY 20 JANUARY 2017

FORECAST VALID...WEDNESDAY 25 JANUARY 2017

ANALYSIS CONFIDENCE...HIGH TO MODERATE

SYNOPSIS...HIGH PRESSURE WILL PERSIST OVER EASTERN SIBERIA AS A
MODERATE STRENGTH LOW PRESSURE SYSTEM MOVES INLAND FROM BRISTOL BAY
BY SATURDAY. ANOTHER LOW WILL MOVE EASTWARD ALONG THE ALEUTIAN
ISLANDS THROUGH WEDNESDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ220-WALES TO CAPE THOMPSON-
PKZ215-KOTZEBUE SOUND-
PKZ200-NORTON SOUND-

ICE COVERED.

-BERING SEA-

PKZ160-BRISTOL BAY-
PKZ165-PORT HEIDEN TO CAPE SARICHEF-
PKZ180-KUSKOKWIM DELTA TO ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-
PKZ210-DALL POINT TO WALES-


THE MAIN ICE EDGE IN THE BERING SEA EXTENDS FROM 56.5N  159.9W TO
57.3N 158.9W TO 59.6N 170W TO 61.5N 170.6W TO 63.7N 175.5W AND
CONTINUES INTO RUSSIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...WINDS WILL GENERALLY
BE NORTHERLY TO EASTERLY THROUGH WEDNESDAY. THE ICE EDGE IS EXPECTED
TO MOVE SOUTHWESTWARD 40 TO 60 NM BY WEDNESDAY.

-COOK INLET-
PKZ130-WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
PKZ139-COOK INLET KALGIN ISLAND TO POINT BEDE-
PKZ140-COOK INLET NORTH OF KALGIN ISLAND-
PKZ141-KACHEMAK BAY-

COOK INLET ANALYSIS CONFIDENCE...HIGH TO MODERATE

SYNOPSIS FOR COOK INLET...A WEAK LOW WILL REMAIN OVER THE COOK INLET
REGION THROUGH MONDAY...THEN A STRONGER LOW WILL MOVE EASTWARD
TOWARD THE WESTERN GULF OF ALASKA TUESDAY AND WEDNESDAY.

THE MAIN ICE EDGE EXTENDS FROM NEAR 59.9N 151.8W TO 60.3N 151.6W TO
60.1N 152.1W TO 60.2N 152.2W TO 59.2N 153.5W TO 58.9N 153.2W. THE
ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR COOK INLET...AIR TEMPERATURES ARE
FORECAST TO REMAIN WELL BELOW FREEZING THROUGH MONDAY...HOWEVER
WARMER AIR WILL MOVE NORTHWARD TUESDAY AND WEDNESDAY. SEA ICE WILL
CONTINUE TO GROW...AND THE ICE EDGE IS EXPECTED TO EXPAND SOUTHWARD
UP TO 20 NM THROUGH WEDNESDAY.

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

$$



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