A narrow band of lake-effect snow off Lake Michigan dropped nearly 25 cm (10 inches) of snow overnight in parts of Racine and Kenosha counties, Wisconsin, on Monday, November 10, 2025.
Powerful bands of lake-effect snow brought traffic on parts of Interstate 57 (I-57) south of Chicago, Illinois, to a standstill amid whiteout conditions on the morning of November 10, 2025. The National Weather Service (NWS) warned drivers to use extreme caution as snowfall rates exceeded 7 cm/h (3 in/h) in localized bands, producing near-zero visibility and hazardous travel across portions of northeastern Illinois.
Multiple school districts across Chicago and northwest Indiana announced closures, delays, or transitions to e-learning for Monday, November 10, 2025, due to a powerful storm that brought the region’s first snow of the season.
The season’s first measurable snow reached Chicago early Monday, November 10, 2025, as Arctic air swept across the Great Lakes, producing intense lake-effect snow bands over Lakes Michigan, Erie, and Ontario. Travel warnings were issued from Illinois to western New York, with authorities urging drivers to avoid non-essential travel.
A developing low-pressure system over the Northeast Pacific is forecast to direct a strong atmospheric river (AR) toward California between November 12 and 15, 2025. The Center for Western Weather and Water Extremes (CW3E) indicates a high probability of moderate to strong AR conditions in Northern and Central California, with heavy precipitation possible in the Sierra Nevada and coastal ranges.
A fast-moving clipper storm swept through parts of the U.S. Northeast on November 5–6, 2025, producing wind gusts up to 113 km/h (70 mph), leaving more than 70 000 customers without power across several states.
An EF1 tornado confirmed near Alta, Wyoming, in the Teton Canyon area of the Caribou–Targhee National Forest on October 15, 2025, was officially verified on October 28. It is the third tornado ever recorded in Teton County and the first October tornado on record in Wyoming.
The National Weather Service issued winter weather advisories for the Cascades of Whatcom, Skagit, and western Okanogan counties, Washington, from Wednesday, November 5, through 10:00 PST (18:00 UTC) on Friday, November 7, 2025, as moderate to heavy mountain snow continues.
A strong cold front will drive frigid Arctic air deep into the United States this weekend into next week, November 10, 2025 onwards, bringing December-like temperatures, widespread freezes, and the season’s first snow for some areas east of the Rockies.
A Flood Watch is in effect for Mason County, Washington, from Thursday afternoon through Saturday morning, November 6-8, 2025. Due to persistent rain, the Skokomish River is expected to rise above flood stage.
