Pacific Marine Heatwave Disrupting Weather Across Nation - Videos from The Weather Channel

Pacific Marine Heatwave Disrupting Weather Across Nation

October 7, 2025

A massive marine heatwave called "the blob" has returned, stretching 5,000 miles across the Pacific and ranking as the fourth-largest on record. Beyond disrupting ocean ecosystems from plankton to whales, this warming phenomenon reshapes weather patterns nationwide—potentially bringing wetter storms to the West Coast while triggering colder, wetter winters in the eastern United States.