Ice Forecast


662 
FZAK80 PAFC 142315
ICEAFC
SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
315 PM AKDT MONDAY 14 OCTOBER 2013 
FORECAST VALID...SATURDAY 19 OCTOBER 2013 
ANALYSIS CONFIDENCE...MODERATE TO HIGH.
SYNOPSIS...LOW PRESSURE OVER THE NORTH COAST OF ALASKA WILL SLOWLY
WEAKEN OVER THE BEAUFORT SEA TUESDAY... THEN SHIFT OVER BANKS ISLAND
WEDNESDAY. ANOTHER LOW WILL MOVE OVER SAINT LAWRENCE ISLAND
WEDNESDAY... SHIFTING OVER THE CHUKCHI SEA FRIDAY.      
-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA- 
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
THE ICE EDGE LIES FROM 60 NM SOUTH OF BANKS ISLAND TO 71.5N 130.6W TO
70.5N 138.8W TO 72.5N 158.0W TO 73.7N 164.4W TO 72.8N 167.0W TO 71.7N
177.1W AND CONTINUES TO THE WEST. THE ICE EDGE IS MAINLY 1 TO 3
TENTHS NEW ICE WITH HIGHER CONCENTRATIONS OF ICE 15 TO 25 NM FROM THE
ICE EDGE.  
SEA ICE IS PRESENT ALONG THE ALASKAN COASTLINE FROM NEAR POINT LAY TO
POINT BARROW AND OVER TO MACKENZIE BAY. MOST OF THIS SEA ICE IS NEW
AND YOUNG ICE WITH CONCENTRATIONS UP TO 10 TENTHS.  
FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...WESTERLY TO
SOUTHWESTERLY FLOW WILL PERSIST NEAR THE ICE EDGE THROUGH EARLY
WEDNESDAY... THEN EASTERLY FLOW WILL DEVELOP THURSDAY THROUGH
SATURDAY. THE MAIN ICE EDGE IS EXPECTED TO EXPAND TO THE SOUTH 15 TO
25 NM THROUGH SATURDAY WHILE ICE CONCENTRATIONS AND ICE THICKNESS
CONTINUE TO INCREASE.  
FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...NORTHEASTERLY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE CHUKCHI SEA ICE EDGE THROUGH
SATURDAY... WHILE WINDS WILL BECOME SOUTHEASTERLY OVER THE EASTERN
CHUKCHI SEA LATE FRIDAY INTO SATURDAY. EXPECT THE ICE EDGE TO EXPAND
TO THE SOUTH 25 TO 35 NM THROUGH SATURDAY OVER THE ICE EDGE WEST OF
170W AND EXPAND TO THE SOUTH 15 TO 25 NM IN THE CHUKCHI SEA EAST OF
170W THROUGH SATURDAY.     
BLEGATT 2013 
$$