Sea Ice Advisory


FZAK80 PAFC 240046
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
445 PM AKDT WEDNESDAY 23 JULY 2014 

FORECAST VALID...MONDAY 28 JULY 2014

ANALYSIS CONFIDENCE...LOW TO MODERATE.

SYNOPSIS...A LOW PRESSURE SYSTEMS WILL PASS OVER THE CHUKCHI AND 
BEAUFORT SEAS THURSDAY. A RIDGE OF HIGH PRESSURE WILL SHIFT OVER THE 
CHUKCHI SEA FRIDAY...CONTINUING OVER THE BEAUFORT SEA SATURDAY. 
ANOTHER LOW WILL MOVE OVER THE CHUKCHI SEA SATURDAY AND AGAIN 
REPLACED BY HIGH PRESSURE LATE SUNDAY.

-ARCTIC OCEAN-

ICE COVERED.

-CHUKCHI SEA-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-

THE MAIN ICE EDGE LIES ALONG THE COAST FROM NEAR WAINWRIGHT TO 71.6N 
163.4W TO 71.4N 166W TO 69.8N 167W TO 69.7N 169.5W TO 70.6N 169.7W 
TO 71.3N 174.4W TO 69.3 179.2W TO THE RUSSIAN COAST NEAR 68.2N 
177.2W. THE ICE EDGE RANGES FROM OPEN WATER TO 2 TENTHS FIRST YEAR 
THIN AND YOUNG BRASH SEA ICE.

-BEAUFORT SEA-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

THE MAIN ICE EDGE LIES FROM THE SOUTHWEST CORNER OF BANKS ISLAND TO 
71.0N 130.4W TO 71.1N 145.8W TO THE ALASKA COAST NEAR DEMARCATION 
POINT. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH MONDAY FOR THE CHUKCHI SEA...LIGHT NORTHWESTERLY 
FLOW WILL PERSIST OVER MUCH OF THE MAIN ICE EDGE THROUGH MONDAY WITH 
A COUPLE PERIODS OF SOUTHERLY FLOW. THE OVERALL ICE EDGE IS EXPECTED 
TO SHIFT TO THE EAST SOUTHEAST UP TO 15 NM THROUGH MONDAY.

FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...EASTERLY FLOW WILL 
QUICKLY TURN TO WESTERLY FLOW WILL LATE THURSDAY. THE FLOW WILL 
RETURN TO LIGHT EASTERLY SATURDAY THROUGH MONDAY. THE ICE EDGE IS 
EXPECTED TO SHIFT UP TO LESS THAN 10 NM TO THE EAST THROUGH MONDAY.