Ice Forecast
Issued by NWS Anchorage, AK

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000
FZAK80 PAFC 212320
ICEAFC

Sea Ice Advisory for Western and Arctic Alaskan Coastal Waters
National Weather Service Anchorage Alaska
320 PM AKDT Monday 21 May 2018

FORECAST VALID...Saturday 26 May 2018

ANALYSIS CONFIDENCE...High

SYNOPSIS...High pressure will persist over the far northern Beaufort
Sea as a low moves eastward across the southern Bering Sea through
Saturday.

-Arctic Ocean-
-Beaufort Sea-
-Chukchi Sea-
PKZ235-Point Franklin to Cape Halkett-
PKZ240-Cape Halkett to Flaxman Island-
PKZ245-Flaxman Island to Demarcation Point-
PKZ500-Western U.S. Arctic Offshore-
PKZ505-Central U.S. Arctic Offshore-
PKZ510-Eastern U.S. Arctic Offshore-

Ice covered.

-Chukchi Sea-
PKZ215-Kotzebue Sound-
PKZ220-Wales to Cape Thompson-
PKZ225-Cape Thompson to Cape Beaufort-
PKZ230-Cape Beaufort to Point Franklin-

FORECAST FOR THE CHUKCHI SEA (Days 1 through 5)...Northeasterly
winds will persist over the Chukchi Sea through Saturday. The
ice pack is expected to shift to the southwest by 20 to 30 nm
through Saturday.

-Bering Sea-
PKZ180-Kuskokwim Delta and Etolin Strait-
PKZ181-North and west of Nunivak Island-
PKZ200-Norton Sound-
PKZ210-Dall Point to Wales-

The remaining sea ice in the eastern Bering Sea is largely confined
to the Alaskan coast. An ice edge extends from 65N 166.7W to 65.8N
169.7W to 64.3N 172.9W. There is additional sea ice within Norton
Bay and Golovin Bay as well as along the Yukon River Delta. The ice
edge is mainly open water.

FORECAST FOR THE BERING SEA (Days 1 through 5)...Generally northerly
to easterly winds will persist through the Bering Strait and
northern Bering Sea through Saturday. Strips of pack ice from the
southern Chukchi Sea may drift south into the Bering Strait region
through Saturday. This ice will decrease in concentration and
eventually melt out as it moves into warmer open water. The
remaining coastal pack ice within the Bering Sea will continue to
deteriorate through Saturday. Strips of ice may be pulled away from
the pack and drift south into open water farther offshore, but will
then likely melt as they encounter warmer sea surface temperatures.

$$



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