190
FZAK80 PAFC 252123
ICEAFC

Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters
National Weather Service - Alaska Sea Ice Program
123 PM AKDT Wednesday 25 June 2025

FORECAST VALIDMonday 30 June 2025


ANALYSIS CONFIDENCEHigh


SYNOPSISWidespread low pressure will give way to a high pressure
ridge in the Bering Sea by Friday. High pressure will then spread
northeastward across the Beaufort Sea, Alaska mainland, and Gulf of
Alaska by Monday.


-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. Easterly winds will persist through Saturday and
then become variable for Sunday and Monday as high pressure builds
over the area. Sea ice will drift to the west through Saturday, and
some shorefast ice may break off 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-
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.


The main ice edge extends from near Wales to 67 4N 167 41W to 66
48N 165 1W to 68 28N 168 27W to 69 13N 169 49W and continues
into Russian waters. The ice edge is open water.


From land-based points in Alaska, the main ice edge extends from
near Wales to 87 nm north of Wales to 35 nm northeast of Shishmaref
to 32 nm west of Point Hope to 80 nm northwest of Point Hope and
continues into Russian waters. The ice edge is open water.


FORECAST FOR THE CHUKCHI SEA (DAYS 1 through 5)...Forecast
confidence is high. Northerly winds will persist through Friday and
then shift southerly Saturday through Monday. As northerly winds
strengthen today (Wednesday), expect compaction of the sea ice west
of Point Hope/Cape Lisburne. Overall, sea ice will continue to
gradually melt.


-BERING SEA-


PKZ817-North side of Saint Lawrence Island out to 15 nm-


There is a small area of sea ice remaining just north of Saint
Lawrence Island east of Savoonga.


FORECAST FOR THE BERING SEA (DAYS 1 through 5)...Forecast confidence
is high. Over the remaining sea ice, winds will be northerly through
Thursday and then westerly to southwesterly from Friday through
Monday. Sea ice will continue to melt and is expected to melt
completely by Saturday.



&&
Fenrich