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** Important notice for upcoming changes to NWS Anchorage web site ** Read more...

FZAK80 PAFC 272256
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA 
300 PM AKDT MONDAY 27 JUNE 2016 

FORECAST VALID...SATURDAY 02 JULY 2016

ANALYSIS CONFIDENCE...MODERATE TO HIGH
                      
SYNOPSIS...HIGH PRESSURE OVER THE BEAUFORT SEA WILL SHIFT EAST LATE
TUESDAY. A LOW WILL MOVE OVER THE CHUKCHI SEA TUESDAY... TRACKING TO
THE NORTHEAST OVER THE NORTHERN BEAUFORT SEA BY WEDNESDAY. HIGH
PRESSURE WILL BUILD IN BEHIND THE LOW ACROSS MUCH OF THE CHUKCHI AND
BEAUFORT SEAS LATE WEDNESDAY. THE HIGH PRESSURE WILL SHIFT OVER THE
BEAUFORT SEA THURSDAY AS A TROUGH OF LOW PRESSURE PASSES OVER THE
WESTERN CHUKCHI SEA ON THURSDAY. HIGH PRESSURE WILL BUILD BACK OVER
THE SOUTHERN CHUKCHI SEA 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-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-

ICE COVERED.

-BEAUFORT SEA-
-CHUKCHI SEA-
-BERING SEA-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-

THE MAIN ICE EDGE EXTENDS FROM NEAR CAPE LISBURNE TO 69.8N 167.3W TO
69.6N 171.3W TO 71N 173.6W TO THE RUSSIAN COAST NEAR 66.1N 169.7W.
IN THE NORTHERN BERING SEA...DETERIORATING SEA ICE IS LOCATED IN THE
GULF OF ANADYR. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...IT IS LIKELY THAT
DETERIORATING COASTAL ICE LYING BEYOND BARRIER ISLANDS WILL CONTINUE
TO DETERIORATE AND MAY DRIFT OFFSHORE THROUGH SATURDAY. EXTRA CARE
SHOULD BE TAKEN WHILE ON OR NEAR THE COASTAL ICE ALONG THE BEAUFORT
SEA COAST THROUGH SATURDAY.

FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...SOUTHWESTERLY TO
WESTERLY FLOW WILL PERSIST THROUGH TUESDAY AND WEAKEN WITH LIGHT
WINDS WEDNESDAY. SOUTHERLY TO WESTERLY FLOW WILL RETURN THURSDAY
THROUGH SATURDAY. THE MAIN ICE PACK WILL CONTINUE TO COMPACT ALONG
THE SOUTHERN EDGE AND RETREAT TO THE NORTHEAST THROUGH SATURDAY. SEA
ICE RETREAT WILL BE MUCH SLOWER OVER THE SHOAL REGIONS...WITH THE
GREATEST SEA ICE RETREAT TAKING PLACE IN THE CANYON AND CHANNEL
AREAS OF THE CHUKCHI BASIN.

FORECAST THROUGH SATURDAY FOR THE BERING SEA...THE REMAINING SEA ICE
LOCATED ALONG THE RUSSIAN COAST IS EXPECTED TO MELT OUT TO NEAR SEA
ICE FREE CONDITIONS BY SATURDAY.

$$


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