220  
FZAK80 PAFC 212342  
ICEAFC  
 
SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS  
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA  
330 PM AKDT FRIDAY 21 JULY 2017  
 
FORECAST VALID...WEDNESDAY 26 JULY 2017  
 
ANALYSIS CONFIDENCE...HIGH TO MODERATE  
 
SYNOPSIS...A SERIES OF LOWS WILL MOVE EASTWARD ACROSS THE NORTHERN  
CHUKCHI SEA AND SOUTHERN BEAUFORT SEA THROUGH WEDNESDAY.  
 
-ARCTIC OCEAN-  
-BEAUFORT SEA-  
 
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-  
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-  
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-  
PKZ235-POINT FRANKLIN TO CAPE HALKETT-  
 
ICE COVERED.  
 
-BEAUFORT SEA-  
 
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-  
 
THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM NEAR 70.2N 146.7W  
TO 72.4N 149.8W TO 72.7N 145.1W TO 71.2N 138.7W AND CONTINUES IN  
CANADIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.  
 
FORECAST THROUGH WEDNESDAY FOR THE BEAUFORT SEA...WINDS WILL  
ALTERNATE BETWEEN EASTERLY AND WESTERLY AS THE SERIES OF LOWS MOVE  
EASTWARD ACROSS THE BEAUFORT SEA THROUGH WEDNESDAY. SEA ICE WITHIN  
NAVIGATIONAL WATERS BETWEEN POINT BARROW AND PRUDHOE BAY IS EXPECTED  
TO CONTINUE TO MELT THROUGH WEDNESDAY WITH THE HELP OF WARM  
WATER...MODERATE WINDS...AND ELEVATED SEAS. THE MAIN ICE EDGE IN THE  
BEAUFORT SEA IS EXPECTED TO MOVE EASTWARD UP TO 20 NM THROUGH  
WEDNESDAY.  
 
-CHUKCHI SEA-  
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-  
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-  
 
THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM NEAR POINT BARROW  
TO 72.8N 163.3W TO 72.2N 174.7W TO 70.4N 179W AND CONTINUES IN  
RUSSIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.  
 
FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...WINDS WILL  
ALTERNATE BETWEEN EASTERLY AND WESTERLY AS THE SERIES OF LOWS MOVE  
EASTWARD ACROSS THE CHUKCHI SEA THROUGH WEDNESDAY. THE MAIN ICE EDGE  
IS EXPECTED TO SHIFT 10 NM SOUTH THROUGH WEDNESDAY.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab AK Page Main Text Page