Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 172342
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
241 PM AKST WEDNESDAY 17 DECEMBER 2014

FORECAST VALID...MONDAY 22 DECEMBER 2014

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...A SERIES OF LARGE LOWS WILL PASS THROUGH THE BERING SEA
AND GULF OF ALASKA 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 59.2N 162.1W TO
59.4N 163.5W TO 60.9N 168.1W TO 62.4N 168.8W TO 64.6N 168.4W TO
64.6N 169.6W TO 63.9N 170.1W TO 63.6N 172.7W TO 63.7N 173.6W TO
64.1N 173.6 TO 64.3N 173.2W AND CONTINUES ALONG THE RUSSIAN COAST.
THE ICE EDGE IS MAINLY OPEN WATER AND 5 TO 7 TENTHS NEW AND YOUNG
ICE.

ALONG THE COAST OF SAINT LAWRENCE ISLAND...NEW ICE OF 3 TO 7 TENTHS
COVERAGE EXTENDS UP TO 10 NM FROM THE COAST. THERE IS NEW AND YOUNG
ICE IN SHALLOW BAYS OF NORTHERN BRISTOL BAY AS WELL.

FORECAST THROUGH MONDAY FOR THE BERING SEA...SOUTHEASTERLY FLOW WILL
CONTINUE THROUGH THURSDAY...THEN FLOW WILL BECOME NORTHEASTERLY ON
FRIDAY AND NORTHERLY SATURDAY THROUGH MONDAY. THE ICE EDGE NORTH OF
SAINT LAWRENCE ISLAND IS EXPECTED TO EXPAND TO THE SOUTH 30 TO 45 NM
THROUGH MONDAY. THE ICE EDGE SOUTH OF SAINT LAWRENCE ISLAND IS
EXPECTED TO MOVE TO THE WEST-SOUTHWEST 15 TO 30 NM THROUGH MONDAY.

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

COOK INLET ANALYSIS CONFIDENCE...LOW TO MODERATE.

SYNOPSIS FOR COOK INLET...A SERIES OF LOWS WILL PASS OVER THE GULF
OF ALASKA THROUGH FRIDAY. A LOW WILL REMAIN NEARLY STATIONARY OVER
THE GULF OF ALASKA SATURDAY THROUGH MONDAY.

LOW CONCENTRATIONS OF NEW SEA ICE ARE CURRENTLY MOVING WITH THE
TIDES WITHIN KNIK ARM AND NEAR THE SUSITNA RIVER DELTA. 5 TO 7 TENTHS
NEW ICE IS REMAINING THROUGH THE DAYTIME HOURS NORTH OF FIRE ISLAND.

FORECAST FOR COOK INLET THROUGH MONDAY...NEW SEA ICE IS EXPECTED TO
REMAIN NEARLY STEADY IN CONCENTRATION NORTH OF FIRE ISLAND THROUGH
MONDAY.

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



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