Ice Forecast
Issued by NWS Anchorage, AK

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000
FZAK80 PAFC 312055
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
100 PM AKDT MONDAY 31 AUGUST 2015

FORECAST VALID...SATURDAY 5 SEPTEMBER 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...A RIDGE OF HIGH PRESSURE OVER THE WEST COAST OF ALASKA
WILL SPREAD ACROSS MUCH OF THE CHUKCHI SEA AND BEAUFORT SEA
WEDNESDAY. HIGH PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
BEAUFORT SEA AND CHUKCHI SEA THROUGH SATURDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-

ICE COVERED.

-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-

THE MAIN ICE EDGE LIES FROM A POINT ROUGHLY 50 NM NORTH OF POINT
BARROW TO 73.7N 161.5W TO 73.3N 169.5W AND CONTINUES IN RUSSIAN
WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH SATURDAY FOR THE CHUKCHI SEA...SOUTHERLY TO
WESTERLY FLOW IS EXPECTED TO BECOME EASTERLY TO SOUTHEASTERLY FLOW
THURSDAY THROUGH FRIDAY... WITH EASTERLY TO NORTHEASTERLY FLOW
SATURDAY NEAR THE ICE EDGE. THE OVERALL ICE EDGE IS EXPECTED TO
SHIFT UP TO 15 NM TO THE NORTHWEST THROUGH SATURDAY.

-BEAUFORT SEA-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

THE MAIN ICE EDGE LIES FROM NEAR THE SOUTHWEST CORNER OF BANKS
ISLAND TO 70.4N 138.7W TO 71.3N 142W TO 71.4N 148.8W TO A POINT
ROUGHLY 50 NM NORTH OF POINT BARROW. THE ICE EDGE IS MAINLY OPEN
WATER. SEA ICE ALSO REMAINS JUST BEYOND THE BARRIER ISLANDS OF THE
NORTH SLOPE IN AN ISOLATED REGION BETWEEN 144.4W AND 150.8W.

FORECAST THROUGH SATURDAY FOR THE BEAUFORT SEA...MODERATE TO STRONG
WESTERLY FLOW WILL DECREASE BY THURSDAY AND BECOME EASTERLY FLOW
THROUGH SATURDAY. SEA ICE REMAINING NEAR THE BARRIER ISLANDS IS
EXPECTED TO SLOWLY CONTINUE DECREASING IN CONCENTRATION... WHILE THE
MAIN ICE EDGE IS EXPECTED TO SHIFT TO THE NORTHWEST 5 TO 20 NM
THROUGH SATURDAY.

$$


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