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FZAK80 PAFC 092240

ICEAFC



Sea Ice Forecast for Western and Arctic Alaskan Coastal Waters 

National Weather Service - Alaska Sea Ice Program 

245 PM AKDT Wednesday 9 April 2025



FORECAST VALID...Monday 14 April 2025.



ANALYSIS CONFIDENCE...Moderate.



SYNOPSIS...A series of weak lows will move east across the Bering 

Sea through Monday. A larger low will form near Bristol Bay on 

Saturday and slowly track east into the Gulf of Alaska through 

Monday. High pressure will persist across the Chukchi Sea and 

Beaufort Sea through Saturday before low pressure spreads north on 

Sunday and 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. Winds will be easterly to northeasterly through 

the forecast period. Expect the ice pack to drift westward 5 to 10 

nm/day through Monday. 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. Winds will be generally northerly through 

Monday. Although, south of Point Hope, winds will be more variable 

and at times westerly during the forecast period. The main sea ice 

movement is expected to be near the Bering Strait and the Alaska 

coastline, especially between Wainwright and Point Barrow where a 

polynya will grow through Monday.



-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 33’N 170 

13’W to 59 25’N 172 42’W to 61 4’N 175 34’W 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 25 nm north of Saint Paul to 60 nm south of 

Saint Matthew Island to 195 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. Winds will generally be northerly through the forecast 

period with slight variations in direction as various lows traverse 

eastward across the Bering Sea. During periods of stronger northerly 

winds, expect the ice edge to advance around 10 to 15 nm/day. Sea 

ice is not expected to reach Saint Paul Island during the forecast 

period, though if stronger northerly winds do develop later in the 

weekend and on Monday, there is a chance that some strips of ice may 

briefly reach the island before overall spring retreat begins.



&& 

Fenrich