FZAK80 PAFC 022259
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
300 PM AKDT WEDNESDAY 02 SEPTEMBER 2015 

FORECAST VALID...MONDAY 7 SEPTEMBER 2015

ANALYSIS CONFIDENCE...MODERATE TO HIGH
                      
SYNOPSIS...A RIDGE OF HIGH PRESSURE OVER THE BEAUFORT SEA WILL MOVE 
EASTWARD INTO THE CANADIAN ARCTIC BY SATURDAY. ANOTHER RIDGE OF HIGH 
PRESSURE WILL MOVE FROM THE RUSSIAN ARCTIC INTO THE WESTERN CHUKCHI 
SEA THROUGH SUNDAY. WEAK LOW PRESSURE WILL MOVE SOUTHWARD OVER THE 
BEAUFORT SEA SUNDAY THROUGH MONDAY.
 
-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE- 
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-

ICE COVERED.

-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-

THE MAIN ICE EDGE LIES FROM A POINT ROUGHLY 65 NM NORTH OF POINT 
BARROW TO 74N 162.8W TO 73.4N 164.1W TO 73.4N 174.7W AND CONTINUES 
IN RUSSIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH MONDAY FOR THE CHUKCHI SEA...EASTERLY FLOW WILL 
BECOME NORTHERLY SATURDAY NIGHT THROUGH MONDAY. THE OVERALL ICE EDGE 
IS EXPECTED TO SHIFT 10 TO 20 NM TO THE WEST THROUGH MONDAY.

-BEAUFORT SEA-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

THE MAIN ICE EDGE LIES FROM NEAR THE SOUTHWEST CORNER OF BANKS 
ISLAND TO 71.1N 127.3W TO 70.4N 137.7W TO A POINT ROUGHLY 65 NM 
NORTH OF POINT BARROW. THE ICE EDGE IS MAINLY OPEN WATER. SEA ICE 
ALSO REMAINS JUST BEYOND THE BARRIER ISLANDS OF THE NORTH SLOPE IN 
AN ISOLATED REGION BETWEEN 144.4W AND 150.8W.

FORECAST THROUGH MONDAY FOR THE BEAUFORT SEA...LIGHT WINDS WILL 
BECOME EASTERLY FRIDAY THROUGH SATURDAY...THEN WILL BECOME LIGHT 
AGAIN SUNDAY THROUGH MONDAY. SEA ICE REMAINING NEAR THE BARRIER 
ISLANDS IS EXPECTED TO SLOWLY CONTINUE DECREASING IN 
CONCENTRATION...WHILE THE MAIN ICE EDGE IS EXPECTED TO SHIFT TO THE 
WEST 10 TO 20 NM THROUGH MONDAY.
 
$$


National Weather Service Anchorage Forecast Office: http://pafc.arh.noaa.gov