Text Products for ICE Issued by AFC

Ice Forecast
Issued by NWS Anchorage, AK
Versions: 1 2 3 4 5
000
FZAK80 PAFC 222151
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
150 PM AKDT Monday 20 April 2024

FORECAST VALID...Saturday 27 April 2024

ANALYSIS CONFIDENCE...Moderate to high.

SYNOPSIS...A large and deep low will linger over the Bering through
Friday before dropping into the Gulf. An additional low will develop
near Anadyr on Saturday. High pressure will remain over the high
Arctic through Saturday.

The main ice edge extends from near Cape Newenham to 57 39`N 159
13`W to 57 26`N 159 56`W to 56 43`N 164 36`W to 57 40`N 169 43`W to
59 51`N 174 55`W to 61 23`N 177 56`W and continues in Russian
waters. The ice edge is open water.

From land-based points in Alaska, the main ice edge extends from
near Cape Newenham to 110 nm SW of Cape Newenham to 25 nm N of St
Paul to 115 nm NW of St Paul to 80 nm S of St Paul to 65 nm SW of St
Matthew to 270 nm SW of Gambell and continues in Russian waters. The
ice edge is open water.


-BEAUFORT SEA-

PKZ505-Central US Arctic Offshore-
PKZ510-Eastern US Arctic Offshore-
PKZ813-Point Franklin to Cape Halkett out to 15 nm-
PKZ814-Cape Halkett to Flaxman Island out to 15 nm-
PKZ815-Flaxman Island to Demarcation Point out to 15 nm-
PKZ860-Cape Halkett to Flaxman Island from 15 nm to 80 nm-
PKZ861-Flaxman Island to Demarcation Point from 15 nm to 75 nm-

Ice covered.

FORECAST FOR THE BEAUFORT SEA (DAYS 1 through 5)...Forecast
confidence is high. Winds will remain out of the north and west,
keeping the pack well established along the coast. Polynyas may open
up as ice shears against the coast, but should quickly refreeze.

-CHUKCHI SEA-

PKZ500-Western US Arctic Offshore-
PKZ505-Central US Arctic Offshore-
PKZ807-Wales to Cape Espenberg out to 15 nm-
PKZ808-Cape Espenberg to Motherwood Point out to 10 nm-
PKZ809-Motherwood Point to Cape Krusenstern out to 10 nm-
PKZ810-Cape Krusenstern to Cape Thompson out to 15 nm-
PKZ811-Cape Thompson to Cape Beaufort out to 15 nm-
PKZ812-Cape Beaufort to Point Franklin out to 15 nm-
PKZ813-Point Franklin to Cape Halkett out to 15 nm-
PKZ855-Kotzebue Sound greater than 10 nm-
PKZ856-Wales to Cape Thompson greater than 15 nm-
PKZ857-Cape Thompson to Cape Beaufort from 15 to 85 nm-
PKZ858-Cape Beaufort to Point Franklin from 15 to 85 nm-

Ice covered.

FORECAST FOR THE CHUKCHI SEA (DAYS 1 through 5)...Forecast
confidence is high. Winds will remain out of the north and east, and
will increase in strength. This may open up Polynyas along western
facing shorelines.

-BERING SEA-

PKZ762-Bristol Bay from Cape Chichagof to Cape Peirce out to 15 nm-
PKZ763-Kuskokwim Delta and Etolin Strait out to 15 nm-
PKZ765-North and West of Nunivak Island-
PKZ767-Saint Matthew Island waters-
PKZ801-Etolin Strait to Dall Point out to 15 nm-
PKZ802-Dall Point to Kwikpak Pass out to 15 nm-
PKZ803-Kwikpak Pass to Cape Stephens out to 15 nm-
PKZ804-Cape Stephens to Moses Point out to 15 nm-
PKZ805-Moses Point to Sledge Island out to 15 nm-
PKZ806-Sledge Island to Wales out to 15 nm-
PKZ816-South side of Saint Lawrence Island out to 15 nm-
PKZ817-North side of Saint Lawrence Island out to 15 nm-
PKZ850-Etolin Strait to Kwemeluk Pass from 15 to 90 nm-
PKZ851-Southwest of Saint Lawrence Island from 15 to 100 nm-
PKZ852-Norton Sound greater than 15 nm-
PKZ853-Kwemeluk Pass to Kwikpak Pass from 15 to 90 nm-
PKZ854-Sledge Island to Wales greater than 15 nm-

Ice covered.

PKZ412-Bering Sea 171W to 180 and North of 56N-
PKZ414-Bering Sea East of 171W-
PKZ756-Port Heiden to Nelson Lagoon out to 15 nm-
PKZ758-Nelson Lagoon to Cape Sarichef out to 15 nm-
PKZ760-Bristol Bay greater than 15 nm-
PKZ761-Bristol Bay from Port Heiden to Cape Chichagof out to 15 nm-
PKZ764-Kuskokwim Delta from 15 to 80 nm-
PKZ766-Pribilof Islands Nearshore Waters-

FORECAST FOR THE BERING SEA (DAYS 1 through 5)...Forecast confidence
is high. Along the ice edge, south and easterly winds in the first
half of the forecast period will push the pack north and west,
leading to a general retreat and compaction of the ice edge by 20 to
40 nm. Towards Saturday, light northerlies may bring some of the ice
back to the south, but winds will be lighter.

-COOK INLET-

PKZ740-Cook Inlet North of Kalgin Island-

FORECAST FOR COOK INLET (DAYS 1 through 5)...Forecast confidence is
high. River ice may move south into upper Cook Inlet via the Knik
River. Otherwise, Cook Inlet is expected to remain largely sea ice
free.

&&
Jones
National Weather Service Weather Forecast Office
