615  
FZAK80 PAFC 162248  
ICEAFC  
 
SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS  
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA  
230 PM AKDT MONDAY 16 SEPTEMBER 2019  
 
FORECAST VALID...SATURDAY 21 SEPTEMBER 2019  
 
ANALYSIS CONFIDENCE...HIGH TO MODERATE  
 
SYNOPSIS...THERE ARE CURRENTLY TWO LOWS EFFECTING WEATHER IN ALAKSA -  
ONE IS CENTERED IN THE GULF OF ALAKSA, THE OTHER IS CENTERED OVER  
THE WESTERN ALEUTIANS. THE CHUKCHI AND BEAUFORT ARE ON THE FRINGES  
OF HIGH PRESSURE EXTENDING FROM THE NORTH POLE DOWN TO EASTERN  
SIBERIA. BY WEDNESDAY, THE LOW WHICH WAS OVER THE ALEUTIANS MOVES  
INTO WESTERN ALASKA, ALSO BRINGING LOW PRESSURE TO THE CHUKCHI AND  
SOUTHERN BEAUFORT. THIS LOW SPINS OFF AND REMAINS CENTERED  
NORTHWEST OF WAINWRIGHT.  
 
-CHUKCHI SEA-  
 
THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM APPROXIMATELY 410  
NM NORTH OF POINT BARROW TO 76.9N 175.1W TO 76.1N 177.6W TO 78.6N  
179.9W TO 76.1N 176.1W AND CONTINUES IN RUSSIAN WATERS. THE ICE EDGE  
IS MAINLY OPEN WATER.  
 
FORECAST FOR THE CHUKCHI SEA (DAYS 1 THROUGH 5)...LIGHT AND  
NORTHERLY WINDS WILL CONTINUE THROUGH WEDNESDAY. ON THURSDAY, WINDS  
SWITCH TO EASTERLY AT 20-25 KNOTS, MOVING BACK TO VARIABLE ON  
FRIDAY.  
 
-BEAUFORT SEA-  
 
THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM APPROXIMATELY 410  
NM NORTH OF POINT BARROW TO 76.9N 145.5W TO 73.8N 142.2W TO 74.1N  
135.5W AND CONTINUES IN CANADIAN WATERS. THE ICE EDGE IS MAINLY OPEN  
WATER.  
 
FORECAST FOR THE BEAUFORT SEA (DAYS 1 THROUGH 5)...WINDS ARE  
CURRENTLY LIGHT AND VARIABLE. BEGINNING ON WEDNESDAY AND EXTENDING  
INTO FRIDAY, WINDS WILL BE OUT OF THE EAST AT 20-30 KNOTS.  
 
 

 
 
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