928
FZAK80 PAFC 062108
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
108 PM AKDT Friday 6 June 2025

FORECAST VALID...Wednesday 11 June 2025

ANALYSIS CONFIDENCE...Moderate to high.

SYNOPSIS...Generally high pressure is spread across the Bering Sea
north to the Chukchi and Beaufort Seas. Lower pressure is located to
the west and east over Russia and the Alaska mainland. Through this
weekend, high pressure will build to the east and encompass the Gulf
of Alaska north to the Beaufort Sea. Low pressure from Russia will
gradually spread east across the Bering and Chukchi Seas from Monday
through Wednesday.

-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 generally be easterly to
northeasterly near the Alaska coast through Sunday. Then, winds
become southerly from Monday through Wednesday. Expect little sea
ice movement through the weekend. Sea ice will begin to drift to the
north starting on Monday, promoting a polynya to open up along the
shorefast ice. Shorefast ice may break off, as well.

-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 weaken Saturday and Sunday
and then become southerly from Monday through Wednesday. Expect the
open water polynya to continue to expand southwest of Point Hope
through Sunday, with multi-year ice moving southward along the edge
of the pack ice. The polynya will begin to expand to the north on
Monday due to southerly winds. Near the Bering Strait over the
weekend, weakening winds and southerly ocean currents will likely
cause ice to drift to the north. From Monday through Wednesday,
strengthening southerly winds combined with southerly ocean currents
will enhance northward sea ice movement.

-BERING SEA-

PKZ767-Saint Matthew Island Waters-
PKZ803-Kwikpak Pass to Cape Stephens out to 15 nm-
PKZ804-Cape Stephens to Moses Point 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-

The main ice edge extends from near Gambell to 63 47N 170 26W to
63 56N 168 2W to 62 9N 167 11W to 60 27N 170 11W to 60 37N
172 16W to 61 52N 172 14W to the southeastern corner of Saint
Lawrence Island. The ice edge is open water.

From land-based points in Alaska, the main ice edge extends from
near Gambell to 5 nm north of Savoonga to 65 nm northeast of
Savoonga to 127 nm southeast of Savoonga to 83 nm west of Cape
Mohican to 190 nm south of Gambell to 113 nm south of Gambell to the
southeast corner of Saint Lawrence Island. The ice edge is open
water.

FORECAST FOR THE BERING SEA (DAYS 1 through 5)...Forecast confidence
is high. Over the remaining ice pack, northerly winds will continue
through about mid Saturday and then turn westerly on Sunday. Winds
become southerly from Monday through Wednesday. Compacted sea ice
along the northern coast of Saint Lawrence Island will drift north
off the coastline from about Sunday through Wednesday. Overall, as
sea ice drifts with winds and currents, it will continue to melt,
especially southeast of Saint Lawrence Island. Although, there will
still likely be a large area of very open to open marginal ice near
Saint Lawrence Island.

&&
Fenrich