Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 202244
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
245 PM AKDT WEDNESDAY 20 SEPTEMBER 2017

FORECAST VALID...MONDAY 25 SEPTEMBER 2017

ANALYSIS CONFIDENCE...HIGH

SYNOPSIS...HIGH PRESSURE WILL SIT OVER THE SOUTHERN BEAUFORT THROUGH
SUNDAY. LOW PRESSURE NEAR THE ALASKA/CANADIAN BORDER WILL TIGHTEN
THE GRADIENT FRIDAY AND SATURDAY. LOW PRESSURE WILL SIT OVER THE
NORTHERN ARCTIC THROUGH MONDAY LEAVING MUCH OF THE AREA IN SOUTHWEST
FLOW.  A FRONT ASSOCIATED WITH THE SYSTEM WILL DROP INTO THE AREA
LATE SATURDAY INTO SUNDAY.

-ARCTIC OCEAN-
ICE COVERED.

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

THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM APPROXIMATELY 370
NM NORTH OF POINT BARROW TO 75.6N 135.5W TO 74.6N 138.5W TO 74.4N
135.2W TO 72.8N 144.5W TO 71.3N 136.8W TO 71.4N 135.2W AND CONTINUES
EASTWARD INTO CANADIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH MONDAY FOR THE BEAUFORT SEA...HIGH PRESSURE AND
LIGHT WINDS WILL SET UP OVER THE BEAUFORT THROUGH THURSDAY. LIGHT
WINDS WILL GIVE WAY TO NORTHERNLY WINDS ON FRIDAY. THE ICE EDGE
WITHIN THE BEAUFORT SEA IS EXPECTED TO SHIFT 10 TO 20 NM TO THE
SOUTHWEST THROUGH MONDAY. ICE WILL CONTINUE TO MELT WITHIN THE ICE
PACK THROUGH SATURDAY.

$$


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