Regional charts and associated synopsis write-up capture ice and environmental conditions throughout the Arctic which are based on the U.S. National Ice Center’s weekly analysis. Charts and synopses are updated weekly on Fridays. Note: Baltic Sea analysis is provided by the Finnish Meteorological Institute. The Canadian Archipelago (Canada East, Canada North, Canada West, and Hudson Bay) analysis is provided by the Canadian Ice Service.
Multi-year ice is predominant in the Arctic Ocean. Areas of new and young ice continue to form in most areas. Multi-year ice continues to flow into western Norwegian Bay and the eastern Maclean marine region. New and young ice continued to form. The ice in the Canadian Arctic Archipelago is a mixture of multi-year and second-year ice. Most of the ice is now mobile. New and grey with some grey-white ice continues to form and grow throughout the Archipelago. Some thin first-year ice is beginning to appear, mostly around Ellesmere Island. Second-year ice and multi-year ice in Barrow Strait continues to slowly drift into eastern Lancaster Sound, Prince Regent Inlet and Admiralty Inlet, where some new ice is continuing to form. Nares Strait is predominantly multi-year ice with some grey and grey-white, as the ice continues to flow southward from the Arctic Ocean and has reached into extreme northwestern Baffin Bay, just east of Jones Sound. Bergy water in the rest of Baffin Bay. High concentration of second-year ice in eastern Committee Bay continues drifting into Fury and Hecla Strait.
The Canadian Arctic Archipelago remains mobile except small areas of fast ice along its northwestern extent around Prince Patrick, Mackenzie, Borden, Ellef Ringnes and Amund Rignes Islands. The area contains mostly multi-year ice with some second-year ice. Areas of new and young ice continue to form.The Beaufort Sea remains predominantly multi-year ice. The multi-year ice is mixed with second-year ice in the western Beaufort and just northwest of Banks Island. New and young ice continues to form in the Beaufort Sea and the northern half of the Archipelago in openings of the pack ice. In the substantial area between the pack ice and coastal Alaska new and young ice is rapidly forming. Parry and M’Clintock Channels are predominantly multi year ice with substantial second-year ice. New and young ice continues to form in the southwest half of Viscount Melville Sound. Norwegian Bay contains a mixture of multi-year and second-year ice. Young ice continues to develop. Larsen Sound is largely open water with new and young ice developing in the north and west. There are ice free/open water conditions in Victoria Strait, Rasmussen Basin and Queen Maud Gulf to the western entrance to Amundsen Gulf.
New ice continued to form in the Chukchi Sea along the ice edge, north slope of Alaska, and sheltered bays near Kotzebue. Some ice has become shore fast along the north slope of Alaska in several bays as well as along the northern coast of Wrangel Island.
Ice continued to grow and thicken in the Greenland Sea. The ice edge has compressed towards the coast by 20 NM on average, while new ice continues to form along the edge. Ice continued to flow south and new ice formed ahead of the leading edge. Ice can now be found 30 NM north of Scoresby Sound. With temperatures well below freezing, ice has begun forming in the southern bays.
Easterly winds have been present throughout much of the area over the entire week bringing colder temperatures over areas of open water, reducing temperature enough to promote the formation of new sea ice along the edge. The largest change in the area is in the northern Kara Sea near the coast of Russia, where a rapid growth has forced the ice edge to expand up to 60 NM westward.