327
FZAK80 PAFC 142318
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
316 PM AKDT Monday 14 April 2025

FORECAST VALID...Saturday 19 April 2025.

ANALYSIS CONFIDENCE...High.

SYNOPSIS...A low will move east along the eastern Aleutian Islands
and Alaska Peninsula on Tuesday, then north over the eastern Bering
Sea on Wednesday before dissipating.  Another weaker low will move
east across the southern Bering Sea Friday through Saturday. High
pressure will persist across the high Arctic through Saturday.

-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-
PKZ859-Point Franklin to Cape Halkett from 15 to 75 nm-
PKZ860-Cape Halkett to Flaxman Island from 15 to 80 nm-
PKZ861-Flaxman Island to Demarcation Point from 15 to 75 nm-

Ice covered.

FORECAST FOR THE BEAUFORT SEA (DAYS 1 through 5)...Forecast
confidence is high. Winds will be northeasterly through the forecast
period. Expect the ice pack to drift west-southwestward 5 to 10
nm/day through Saturday. Sea ice near the Alaska coastline will
likely move very little overall through the forecast period.

-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-
PKZ859-Point Franklin to Cape Halkett from 15 to 75 nm-

Ice covered.

FORECAST FOR THE CHUKCHI SEA (DAYS 1 through 5)...Forecast
confidence is high. North of Point Hope, northeasterly winds will
persist through the forecast period, becoming slightly more easterly
by Saturday. Expect polynyas to persist and expand off of the
western-facing coast/shorefast ice. South of Point Hope, winds will
be more variable but generally northeasterly through Thursday and
westerly Friday and Saturday. Little sea ice movement is expected
through Saturday.

-BERING SEA-

PKZ763-Kuskokwim Delta and Etolin Strait out to 15 nm-
PKZ765-North and West of Nunivak Island-
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.

PKZ414-Bering Sea Offshore East of 171W-
PKZ760-Bristol Bay greater than 15 NM-
PKZ761-Bristol Bay from Port Heiden to Cape Chichagof out to 15 nm-
PKZ762-Bristol Bay from Cape Chichagof to Cape Peirce out to 15 nm-
PKZ764-Kuskokwim Delta from 15 to 80 nm-
PKZ767-Saint Matthew Island Waters-

The main ice edge extends from near Cape Newenham to 57 17N 168
59W to 57 31N 171 14W to 61 3N 178 45W and continues into
Russian waters. The ice edge is open water.

From land-based points in Alaska, the main ice edge extends from
near Cape Newenham to 42 nm northeast of Saint Paul to 38 nm
northwest of Saint Paul to 250 nm southwest of Gambell and continues
into Russian waters. The ice edge is open water.

FORECAST FOR THE BERING SEA (DAYS 1 through 5)...Forecast confidence
is high. Northerly winds will become northwesterly by Thursday
across the ice pack.  As the next low moves east across the Aleutian
Islands, winds will become southerly to southeasterly over the ice
pack. Sea ice will drift south 20 to 25 nm per day through
Wednesday, then will slow to 5 to 10 nm as winds weaken toward the
end of the week. Sea ice will likely reach St. Paul Island briefly
on Tuesday or Wednesday, and may linger there through the forecast
period.

&&
Schreck