Ice Forecast
Issued by NWS Anchorage, AK

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000
FZAK80 PAFC 152136
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
136 PM AKDT FRIDAY 15 SEPTEMBER 2017

FORECAST VALID...WEDNESDAY 20 SEPTEMBER 2017

ANALYSIS CONFIDENCE...HIGH

SYNOPSIS...A LOW PRESSURE SYSTEM OVER WRANGELL ISLAND WILL WEAKEN AS
IT MOVES INTO THE BEAUFORT SEA ON SUNDAY. THIS LOW WILL MOVE INTO
THE ARCTIC MONDAY AFTERNOON WITH WEAK HIGH PRESSURE BUILDING ACROSS
THE REGION TUESDAY MORNING. A STRONG LOW PRESSURE SYSTEM WILL DROP
OUT OF THE ARCTIC TUESDAY AFTERNOON WITH AN ASSOCIATED FRONT MOVING
INTO THE BEAUFORT SEA BY WEDNESDAY MORNING.

-ARCTIC OCEAN-
ICE COVERED.

-BEAUFORT SEA-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-

THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM APPROXIMATELY 350
NM NORTH OF POINT BARROW TO 76.9N 147.1W TO 76.8N 142.9W TO 75.3N
135.7W TO 74.2N 138.1W TO 73.5N 136.4W TO 73.1N 143.5W TO 72.5N
143.6W TO 70.9N 135.0W AND CONTINUES EASTWARD INTO CANADIAN WATERS.
THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE BEAUFORT SEA...LIGHT SOUTHERLY
WINDS WILL SHIFT TO THE WEST THIS EVENING. WINDS WILL THEN SHIFT TO
THE EAST EARLY SATURDAY MORNING AND PERSIST THROUGH WEDNESDAY. THE
ICE EDGE WITHIN THE BEAUFORT SEA IS EXPECTED TO SHIFT 5 TO 15 NM TO
THE WEST THROUGH WEDNESDAY. MELTING WILL CONTINUE WITHIN THE ICE
PACK THROUGH WEDNESDAY.

$$



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