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FZAK80 PAFC 292303
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
303 PM AKDT MONDAY 29 SEPTEMBER 2014 

FORECAST VALID...SATURDAY 4 OCTOBER 2014

ANALYSIS CONFIDENCE...LOW TO MODERATE

SYNOPSIS...A LOW PRESSURE SYSTEM WILL RESIDE OVER THE CHUKCHI AND 
BEAUFORT SEAS THROUGH WEDNESDAY...THEN MOVE NORTH OVER THE ARCTIC 
OCEAN THROUGH SATURDAY. 
 
-ARCTIC OCEAN-

ICE COVERED.

-CHUKCHI SEA-

THE MAIN ICE EDGE LIES FROM A POINT ROUGHLY 145 NM NORTH OF BARROW 
TO 74.9N 159.1W TO 74.7N 161.2W TO 76.9N 166.6W TO 75.9N 168.6W TO 
75N 177.3W TO 74.5N 175.1E AND CONTINUES WESTWARD INTO THE RUSSIAN 
ARCTIC. THE ICE EDGE IS MAINLY OPEN WATER...WITH PATCHY AREAS OF NEW 
ICE.

FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...MODERATE TO STRONG 
WINDS WILL PERSIST THROUGH LATE MONDAY. WINDS WILL SWITCH BACK TO 
THE WEST AND GRADUALLY WEAKEN THROUGH WEDNESDAY. THE OVERALL ICE 
EDGE IS EXPECTED TO EXPAND 15 TO 30 NM TO THE SOUTH WITH NEW ICE 
DEVELOPING ALONG THE ICE EDGE.

-BEAUFORT SEA-

THE MAIN ICE EDGE LIES FROM THE SOUTHWEST COAST OF BANKS ISLAND TO 
71.1N 138.6W TO 72.1N 141.2W TO 71.7N 144.3W TO 74.2N 152.8W TO A 
POINT ROUGHLY 145 NM NORTH OF BARROW. THE ICE EDGE CONSISTS OF 
MAINLY OPEN WATER...WITH PATCHY AREAS OF NEW ICE.

FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...WINDS WILL BE LIGHT 
THROUGH WEDNESDAY AS LOW PRESSURE REMAINS OVERHEAD...THEN BECOME 
MODERATE FROM THE WEST TO NORTHWEST THROUGH THURSDAY. WINDS WILL 
AGAIN BECOME LIGHT ON FRIDAY AND SATURDAY. THE OVERALL ICE EDGE IS 
EXPECTED TO EXPAND UP TO 10 NM TO THE SOUTH WITH NEW ICE DEVELOPING 
ALONG THE ICE EDGE. NEW ICE IS EXPECTED TO DEVELOP IN THE PROTECTED 
BAYS ALONG THE BEAUFORT COAST WITH FRESH WATER INPUT FROM INTERIOR 
RIVERS.

$$


Alaska Region Headquarters
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Page Modified: 03 Feb 2008 18:00 UTC
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