Sea Ice Advisory


FZAK80 PAFC 292238
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
240 PM AKDT MONDAY 29 JUNE 2015 

FORECAST VALID...SATURDAY 04 JULY 2015

ANALYSIS CONFIDENCE...MODERATE
                      
SYNOPSIS...HIGH PRESSURE WILL PERSIST OVER THE EASTERN BEAUFORT SEA 
THROUGH THURSDAY. WEAK LOW PRESSURE IS EXPECTED TO PERSIST OVER THE 
NORTHERN CHUKCHI SEA THROUGH THURSDAY... SHIFTING OVER THE NORTHERN 
BEAUFORT SEA FRIDAY THROUGH SATURDAY. A RIDGE OF HIGH PRESSURE WILL 
MOVE OVER THE CHUKCHI SEA AND NORTHERN ALASKA COAST FRIDAY THROUGH 
SATURDAY. 

-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE- 
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-

ICE COVERED.

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

THE MAIN ICE EDGE LIES FROM THE ALASKA COAST NEAR POINT FRANKLIN TO 
71.1N 157.6W TO 71.2N 166.1W TO 70.0N 170.2W TO 71.2N 174.0W TO 
68.8N 174.6W TO THE RUSSIAN COAST NEAR 67.0N 172.6W. THE ICE EDGE IS 
MAINLY OPEN WATER. 

FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...SOUTHWESTERLY TO 
WESTERLY FLOW IS EXPECTED TO PERSIST OVER MUCH OF THE CHUKCHI SEA 
ICE EDGE THROUGH THURSDAY... WITH WINDS BECOMING LIGHTER 
NORTHWESTERLY TO SOUTHWESTERLY FLOW FRIDAY THROUGH SATURDAY. THE ICE 
EDGE EAST OF 161W IS VERY COMPACT AT THIS TIME AND WE EXPECT MINIMAL 
ICE RETREAT THROUGH SATURDAY. WEST OF 161W THE OVERALL ICE PACK IS 
EXPECTED TO CONTINUE SLOWLY DECREASING IN CONCENTRATION WITH A 
RETREAT TO THE NORTHEAST 5 TO 15 NM THROUGH SATURDAY.