101
FZAK80 PAFC 022059
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
1259 pm AKDT Wednesday 2 April 2025

FORECAST VALID...Monday 7 April 2025.

ANALYSIS CONFIDENCE...Moderate.

SYNOPSIS...Low pressure over the Chukchi Sea and Beaufort Sea will
gradually give way to high pressure, which will then persist into
the weekend. A low over the Gulf of Alaska will spread low pressure
northward into the Beaufort Sea later Saturday through Monday. Over
the Bering Sea, high pressure will persist across the western
portion of the sea while low pressure lingers over the eastern part
of the sea.

-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. Westerly winds will persist through Thursday
before shifting northeasterly from Friday through Sunday. Winds then
become westerly again on Monday. Expect the ice pack to drift
eastward around 5 nm/day through Thursday, southwestward from Friday
through Sunday, and then eastward again on Monday. During periods of
westerly winds, shorefast ice may continue to break-off. Expect
little ice pack movement late in the week.

-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. Northerly winds will give way to more variable
winds starting on Thursday as a low transits across the Point
Hope/Kivalina area and as high pressure builds. Through Friday,
light and variable winds will favor ice moving with the tides and
currents. Over the weekend, easterly winds develop over the northern
Chukchi and generally northerly winds develop over the southern
Chukchi. By Monday, widespread northerly winds spread across the
Chukchi Sea. Expect little ice pack movement during the periods of
light and variable winds. Over the weekend and into Monday, ice will
drift about 5 to 10 nm/day in the direction of the winds.

-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 Egegik to 57 24N 162 45W to 57
32N 168 1W to 59 32N 172 27W and continues into Russian waters.
The ice edge is open water.

From land-based points in Alaska, the main ice edge extends from
near Egegik to 75 nm south of Cape Newenham to 160 nm south of Cape
Mohican to 250 nm south 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. Across the eastern Bering Sea, westerly winds become
northerly from Thursday through Monday. During this time, expect the
ice edge to advance around 10 to 15 nm/day. Across the western
Bering Sea (Saint Matthew Island westward), less ice pack movement
is expected as winds will generally be more variable and light.

&&
Fenrich