Norway faces widespread yellow alerts for strong winds and icy roads after a sudden thaw, with the worst conditions in Lofoten, Vesterålen and Finnmark. Bus, ferry, fast boat and some flight services are disrupted; schools closed in parts of Nordland.

A salmon farm manager in Finnmark urges fishermen to report pearl necklace siphonophore (jellyfish) sightings after blooms caused skin and eye injuries and breathing problems in farmed salmon near Øksfjord/Hammerfest.

The invasive carpet sea squirt (filtsjöpung), known as “sea vomit,” is rapidly spreading across the seafloor in Kosterhavet National Park, smothering organisms beneath it. Authorities say budget cuts have hampered monitoring and control, but they are now examining ways to slow the outbreak.

Strong winds and freezing temperatures in the Yenisei Gulf of the Kara Sea created overlapping, scale-like sea-ice patterns known locally as 'dragon scales.' Photos were shared by the first mate of the nuclear icebreaker Ural.

About 4,000 liters of diesel leaked from the grounded landing craft M/S Sørøysund near Fjelldal in Tjeldsund. Emergency crews are pumping fuel off the vessel and have deployed absorbent booms; authorities do not currently fear major impacts to wildlife.

A 21-year-old humpback whale, identified as Polyphemus, was found dead near Lasqueti Island, the second confirmed humpback death in B.C.’s coastal waters in just over two weeks. Cause of death is unknown; DFO and MERS urge caution to mariners to reduce vessel-strike risks.

Two men fell through thin ice near Kotzebue, resulting in one death and one missing person, prompting warnings from local authorities about unsafe ice conditions.

The Metlakatla Indian Community, which has been at the forefront in the effort to control the invaders, has trapped more than 40,000 of them this year.

A rare Haliphron atlanticus (seven-arm octopus) was caught by shrimp fishers in western Skagerrak at about 200 m depth and sent to the Tjärnö Marine Laboratory for study.

Exceptionally large cod catches off Loppa and Hasvik, Finnmark, are allowing many small and mid-size boats to fill their quotas within days, and a record year in turnover is expected. Local leaders say boats from across Norway have flocked to the area, with landings markedly higher than last year.

A harmful plankton bloom and poor water conditions caused large mortalities at three Cermaq salmon farms in northern Clayoquot Sound near Tofino, with up to 185,000 fish lost at one site. DFO says disease was ruled out; critics warn the die-off could affect wild salmon and the marine environment.

Thick, continuous ice up to 30–40 cm hindered docking of the cargo ship FESCO Moneron at the Port of Anadyr, with successful mooring only on a second attempt. Ice navigation has been declared since October 18, restricting entry to vessels of at least Ice 2 class.

A 4-year-old humpback whale named Wisp washed up on Keats Island, B.C., after a suspected collision with a tour vessel, prompting advocates to call for stronger protections and safer boating practices. Authorities and locals are urging measures to reduce ship strikes in the area.

A powerful, ongoing storm in Western Alaska has flooded communities, destroyed homes and left some residents injured by flying debris. Officials say rescue efforts are underway after floodwaters in multiple communities swept homes off their foundations. The remnants of Typhoon Halong tracked farther east than expected, slamming into the Yukon-Kuskokwim Delta coast early on Sunday morning. Officials said Sunday afternoon that the hardest hit communities appeared to be Kipnuk, Kwigillingok and Napakiak.

A storm surge and strong winds pushed tides to the edge of the waterfront road in Iqaluit on Friday morning. Environment Canada had warned of higher-than-normal tides and possible flooding of ground-level spaces.

Flooding had already begun by Wednesday afternoon, and the weather service forecast said water could rise as high as 10 feet above the high tide line. Flood waters are expected to peak around 8 p.m. Wednesday.

The vessel Beitir NK landed 700 tons of herring in Neskaupstaður, as skippers report many whales—especially orcas—converging on herring grounds and following the net to the ship. Recent catches suggest the herring has shifted north toward Bakkaflói.

Two walruses were seen swimming in Ofotfjorden near Lillevika, surprising a local observer. Such sightings are rare in this area.

Storm Amy brought hurricane-force gusts at sea and heavy rain to southern and central Sweden, prompting SMHI orange and yellow warnings, transport shutdowns, and widespread power outages. The storm followed severe impacts in Norway and is expected to ease after Sunday, though windy, rainy conditions will persist along the east coast.

Mowi Canada East reports 166,262 farmed salmon died at two sites near Chaleur Bay on Newfoundland’s south coast, blaming repeated sea lice infestations intensified by warm surface waters, low freshwater runoff, and calm winds. The incident follows earlier 2025 mass mortalities linked to a thermocline inversion and warm, low-oxygen conditions.