693
FZAK80 PAFC 102335
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
235 PM AKST Monday 10 February 2025

FORECAST VALID...Saturday 15 February 2025

ANALYSIS CONFIDENCEModerate.

SYNOPSISA large low over the southwestern Bering Sea will track
west into Russia through mid week, with low pressure persisting
across the Bering Sea through Saturday. High pressure will persist
across the Beaufort Sea and Chukchi Sea through Saturday, although
low pressure from the Bering Sea will linger near the southern
Chukchi 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. Light southerly winds will become stronger
northeasterly winds later Tuesday through Friday. Winds then become
light and variable on Saturday. The ice pack will continue to
thicken and generally move west/southwest through the forecast
period. By midweek, the warmer airmass currently overhead will give
way to a much colder airmass.

-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. Easterly to southeasterly winds will persist
through Tuesday and, thus, sea ice will continue to drift to the
west. On Wednesday, winds shift northeasterly and will persist
through Saturday, and sea ice will start to drift primarily to the
southwest. Polynyas on west- to southwest-facing coastlines will
continue to advance. Stronger easterly/northeasterly winds along the
Cape Lisburne to Icy Cape coastline will make shorefast ice
vulnerable to break-off from Wednesday through Friday. Near the
Bering Strait, northerly winds develop from Thursday 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.

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-
KZ767-Saint Matthew Island Waters-

In the Bering Sea, the main ice edge extends from near Goodnews Bay
to Cape Mohican to 61 39N 172 13W and continues into Russian
waters. The ice edge is open water. There is also sea ice along
portions of the northern Bristol Bay coast.

From land-based points in Alaska, the main ice edge extends from
near Goodnews Bay to Cape Mohican to 130 nm south of Gambell and
continues into Russian waters. The ice edge is open water. There is
also sea ice along portions of the northern Bristol Bay coast.

FORECAST FOR THE BERING SEA (DAYS 1 through 5)...Forecast confidence
is moderate. Widespread, strong easterly to northeasterly winds will
persist through Wednesday, weakening in strength starting on
Tuesday. Thus, expect the continued retreat of the main ice edge and
for polynyas to continue advancing off of west-facing coastlines, as
well as off the shorefast ice of the Yukon Delta and
southern/eastern Norton Sound. Ice within Bristol Bay will melt
while compacting against the northern coastline. On Thursday north
of the Yukon Delta, northerly to northeasterly winds develop and
will persist through Saturday. Thus, expect the ice pack to drift
south and the main ice edge to begin advancing again. Generally
northerly winds develop for areas south of the Yukon Delta on
Thursday before easterly winds develop Friday and Saturday.

-COOK INLET-

PKZ740-Cook Inlet North of Kalgin Island-

SYNOPSISHigh pressure across the Cook Inlet region will gradually
weaken and give way to low pressure (from the south/southwest)
through Saturday.

In Cook Inlet, the main ice edge extends from near Tuxedni Bay to 59
58N 152 15W to near Clam Gulch. The ice edge is open water.

From land-based points in Alaska, the main ice edge extends from
near Tuxedni Bay to 15 nm northwest of Anchor Point to near Clam
Gulch. The ice edge is open water.

FORECAST FOR COOK INLET (DAYS 1 through 5)...Forecast confidence is
high. Northeasterly winds will persist across the Cook Inlet region
through Saturday. Air temperatures will remain colder, with highs in
the low 20s and lows in the teens dropping to single digits by
midweek. Thus, expect sea ice to continue growing through the
forecast period, advancing the ice edge southward.

&&
Fenrich