Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 082303
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
203 PM AKST FRIDAY 8 DECEMBER 2017

FORECAST VALID THROUGH...WEDNESDAY 13 DECEMBER 2017

ANALYSIS CONFIDENCE...HIGH TO MODERATE

SYNOPSIS...LOW PRESSURE WILL GENERALLY REMAIN OVER THE SOUTHWEST
MAINLAND WHILE HIGH PRESSURE REMAINS OVER THE WESTERN HIGH ARCTIC
THROUGH WEDNESDAY. A LOW WILL FORM IN THE BERING STRAIT REGION LATE
TUESDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-

PKZ215-KOTZEBUE SOUND-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-

ICE COVERED.

-CHUKCHI SEA-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-

THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM NEAR WALES TO
67.1N 165.0W TO 68.2N 167.5W TO 69.0N 167.9W TO 69.4N 170.4W TO
71.2N 164.9W TO 72.6N 166.8W TO 73.0N 174.1W TO 72.2N 179.0W 68.8N
171.6W AND CONTINUES SOUTH TO THE RUSSIAN COAST NEAR 66.3N 170.3W.
THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...MODERATE NORTHEAST
TO NORTH WINDS WILL PERSIST THROUGH WEDNESDAY. THE MAIN ICE EDGE IS
EXPECTED TO ADVANCE 25 TO 40 NM SOUTHWESTWARD THROUGH WEDNESDAY.

-BERING SEA-
PKZ160-BRISTOL BAY-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-

THE MAIN ICE EDGE IN THE BERING SEA EXTENDS FROM NEAR QUINHAGAK TO
59.5N 164.3W TO 61.7N 167.1W TO 63.7N 165.8W TO NEAR WALES. THERE IS
ALSO NEW AND YOUNG SEA ICE IN BRISTOL BAY...ESPECIALLY KVICHAK BAY.
THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...LIGHT EASTERLY TO
NORTHERLY WINDS WILL PERSIST THROUGH SATURDAY BEFORE INCREASING IN
STRENGTH LATE SUNDAY NEAR BRISTOL BAY. THE ICE EDGE ALONG THE WEST
COAST OF ALASKA IS EXPECTED TO MOVE 15 TO 20 NM TO THE SOUTHWEST
THROUGH WEDNESDAY. STRONG NORTHERLY WINDS WILL LIKELY STRIP ICE AWAY
FROM THE COAST FROM KUSKOKWIM BAY EASTWARD THROUGH BRISTOL BAY.

-COOK INLET-
PKZ130-WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
PKZ139-COOK INLET KALGIN ISLAND TO PT. BEDE-
PKZ140-COOK INLET NORTH OF KALGIN ISLAND-

ANALYSIS CONFIDENCE...LOW

NEW AND YOUNG SEA ICE HAS BEEN OBSERVED NORTH OF A LINE FROM NEAR
TYONEK TO 61.2N 150.7W TO 61.1N 150.6W TO NEAR NIKISKI. THERE IS
ALSO SOME SEA ICE WITHIN PROTECTED AREAS ON THE WEST SIDE OF COOK
INLET TO KAMISHAK BAY. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR COOK INLET...TEMPERATURES ARE
EXPECTED TO REMAIN NEAR FREEZING THROUGH MONDAY. THE ICE EDGE IS
EXPECTED TO REMAIN IN THE SAME AREA THROUGH MONDAY.

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

$$



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