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Ice Analysis Layer: Concentration Stage Forecast  Legend

FZAK80 PAFC 162313

Sea Ice Advisory for Western and Arctic Alaskan Coastal Waters
National Weather Service Anchorage Alaska
315 PM AKDT Friday 16 March 2018

FORECAST VALID...Wednesday 21 March 2018


SYNOPSIS...A series of lows will move northeastward through the
western Bering Sea through Wednesday.

-Arctic Ocean-
-Beaufort Sea-
-Chukchi Sea-
-Bering Sea-
PKZ200-Norton Sound-
PKZ215-Kotzebue Sound-
PKZ220-Wales to Cape Thompson-
PKZ225-Cape Thompson to Cape Beaufort-
PKZ230-Cape Beaufort to Point Franklin-
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.

-Bering Sea-
PKZ160-Bristol Bay-
PKZ180-Kuskokwim Delta and Etolin Strait-
PKZ181-North and west of Nunivak Island-
PKZ210-Dall Point to Wales-

The main ice edge in the Bering Sea extends from near 57.3N 158.2W
to 58N 157.7W to 58.3N 162.2W to 59.7N 165.5N to 64.2N 176W and
continues in Russian waters.

FORECAST FOR THE BERING SEA (Days 1 through 5)...Winds over the
Bering will remain northeasterly through Saturday. Sunday and into
next week, winds will become strong and southerly. Ice is expected
to compact and shift north around 20 NM through Wednesday. Expect
some movement away from north facing shores and toward south facing

-Cook Inlet-
PKZ130-West of Barren Islands Including Kamishak Bay-
PKZ139-Cook Inlet Kalgin Island to Pt. Bede-
PKZ140-Cook Inlet North of Kalgin Island-

Analysis confidence...Moderate

SEA ICE EDGE DISCUSSION...The main ice edge within Cook Inlet
extends from 60.2N 151.7W to 59.8N 152.9W. There is also sea ice
within Kamishak Bay. The ice edge is mainly open water.

FORECAST FOR COOK INLET (Days 1 through 5)...Winds will generally
remain light from the north through Saturday evening. Temperatures
are still expected to generally remain freezing through Sunday,
though daytime highs will approach freezing. Expect the ice edge to
remain similar to its current position through Saturday, although
there will likely be some continued melting of sea ice within the
ice pack. On Sunday and Monday, southerly flow will cause some
retreat and melting of the ice in Cook Inlet, expect a retreat to
the north of 10 nm through Monday. Tuesday and into Wednesday winds
will become strong out of the Northeast. Daytime and overnight
temperatures are expected to remain at below freezing.

Please note...Cook Inlet sea ice changes significantly with the


Regional Information

Downloads: Shapefile : KMZ | last updated Sun Mar 18 15:02:22 AKDT 2018

Ice Concentration Ice Stage 5 Day Ice Forecast


Cook Inlet Sector

Ice Concentration Ice Stage


Sea Surface Temperature Analysis

Regional Analysis


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