Ice Forecast
Issued by NWS Anchorage, AK

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000
FZAK80 PAFC 212342
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
330 PM AKDT FRIDAY 21 JULY 2017

FORECAST VALID...WEDNESDAY 26 JULY 2017

ANALYSIS CONFIDENCE...HIGH TO MODERATE

SYNOPSIS...A SERIES OF LOWS WILL MOVE EASTWARD ACROSS THE NORTHERN
CHUKCHI SEA AND SOUTHERN BEAUFORT SEA THROUGH WEDNESDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-

PKZ510-EASTERN U.S. ARCTIC OFFSHORE-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-

ICE COVERED.

-BEAUFORT SEA-

PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM NEAR 70.2N 146.7W
TO 72.4N 149.8W TO 72.7N 145.1W TO 71.2N 138.7W AND CONTINUES IN
CANADIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE BEAUFORT SEA...WINDS WILL
ALTERNATE BETWEEN EASTERLY AND WESTERLY AS THE SERIES OF LOWS MOVE
EASTWARD ACROSS THE BEAUFORT SEA THROUGH WEDNESDAY. SEA ICE WITHIN
NAVIGATIONAL WATERS BETWEEN POINT BARROW AND PRUDHOE BAY IS EXPECTED
TO CONTINUE TO MELT THROUGH WEDNESDAY WITH THE HELP OF WARM
WATER...MODERATE WINDS...AND ELEVATED SEAS. THE MAIN ICE EDGE IN THE
BEAUFORT SEA IS EXPECTED TO MOVE EASTWARD UP TO 20 NM THROUGH
WEDNESDAY.

-CHUKCHI SEA-
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-

THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM NEAR POINT BARROW
TO 72.8N 163.3W TO 72.2N 174.7W TO 70.4N 179W AND CONTINUES IN
RUSSIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...WINDS WILL
ALTERNATE BETWEEN EASTERLY AND WESTERLY AS THE SERIES OF LOWS MOVE
EASTWARD ACROSS THE CHUKCHI SEA THROUGH WEDNESDAY. THE MAIN ICE EDGE
IS EXPECTED TO SHIFT 10 NM SOUTH THROUGH WEDNESDAY.

$$



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