A Tennessee warbler (Leiothlypis peregrina) was captured and identified at Mølen in Vestfold after Storm Amy, marking the first record for Scandinavia. Ornithologists believe it was carried across the Atlantic by strong jet streams; birders rushed from around Norway to see it, though it is unlikely to survive the Norwegian autumn.

Storm Floris struck Langesund in Telemark, Norway, ripping roofs off summer cabins at a Norsk Hydro holiday site, though no injuries were reported.

Flood waters rise to orange danger warning after heavy rains, causing evacuations, road closures, and power outages in parts of Agder, Vestfold, and Telemark.

Seals have suffered serious infections of the heart and lungs. Veterinarians do not yet know the cause.