Cold Front Brings Cooler Temperatures and Severe Thunderstorms Across Northern US This Week
A cold front moving into the northern United States this week will lower temperatures, bring scattered showers and raise the risk of severe thunderstorms with hail and strong winds.
As September shifts toward autumn, a cold front is expected to usher cooler, fall-like air into the northern United States, accompanied by scattered showers. Meteorologists have issued a Level 2 slight-risk outlook for severe thunderstorms on Friday, September 11, affecting the Upper Midwest, Northern Plains and the Corn Belt, with hail and damaging wind as the primary hazards. Major cities from Omaha to Minneapolis lie within the threat zone.
A subsequent low-pressure area developing over Canada could drive the front southeastward later in the week, intensifying moisture and producing 2-3 inches of rain across Wisconsin, Iowa, northern Missouri and eastern Kansas, with isolated totals of 3-5 inches. This rainfall raises the possibility of localized flash-flooding into early next week.
Why it matters
The forecast signals hazardous weather that could impact travel, agriculture and flood risk for millions in the northern US.
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