Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 262245
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
200 PM AKST FRIDAY 26 DECEMBER 2014

FORECAST VALID...WEDNESDAY 31 DECEMBER 2014

ANALYSIS CONFIDENCE...MODERATE TO HIGH

SYNOPSIS...A SERIES OF LOW PRESSURE SYSTEMS WILL CONTINUE ACROSS THE
WESTERN AND CENTRAL BERING SEA THROUGH WEDNESDAY. HIGH PRESSURE WILL
BUILD OVER THE GULF OF ALASKA SATURDAY AND SLOWLY TRACK EAST THROUGH
EARLY NEXT WEEK.

-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 58.6N 161.6W TO
60.1N 167.9W TO 61.3N 169.2W TO 62.5N 169.0W TO 63.0N 176.1W TO
64.1N 176.1W AND CONTINUES ALONG THE RUSSIAN COAST. THE ICE EDGE IS
MAINLY OPEN WATER TO 3 TENTHS NEW AND YOUNG SEA ICE. SEA ICE IS ALSO
PRESENT IN THE SHALLOW WATERS OF NORTHERN BRISTOL BAY.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...NORTHEASTERLY FLOW
WILL BECOME EASTERLY TO SOUTHEASTERLY FLOW FRIDAY NIGHT THROUGH
EARLY NEXT WEEK. THE WINDS ALONG WITH RELATIVELY WARMER AIR
TEMPERATURES ARE LIKELY TO SHIFT THE ICE EDGE TO THE NORTHWEST 10 TO
25 NM THROUGH WEDNESDAY... AND MUCH OF THE ICE WITHIN BRISTOL BAY IS
LIKELY TO MELT THROUGH WEDNESDAY.

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

COOK INLET ANALYSIS CONFIDENCE...HIGH TO MODERATE.

SYNOPSIS FOR COOK INLET..A RIDGE OF HIGH PRESSURE WILL MOVE OVER THE
GULF OF ALASKA SATURDAY AND SLOWLY TRACK TO THE EAST. A NORTH
PACIFIC LOW WILL SHIFT JUST WEST OF THE GULF ON MONDAY... TRACKING
NORTH THROUGH EARLY NEXT WEEK.

1 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 WEDNESDAY...SEA ICE WITHIN COOK
INLET IS EXPECTED TO SLOWLY THIN AND DECREASE IN CONCENTRATION
THROUGH WEDNESDAY OWING TO FORECASTED DAILY HIGH TEMPERATURES ABOVE
FREEZING AND POSSIBLE RAIN FALLING ON THE ICE.

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

$$



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