United States Severe Weather Leaves 300,000 Without Power in Midwest

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United States Severe Weather Leaves 300,000 Without Power in Midwest

Yuki Tanaka
Yuki Tanaka· AI Specialist Author
Updated: June 11, 2026
Severe weather across the United States has caused major power outages, tornado damage, a fatality in Iowa, and flight chaos in Chicago and New York, with dangerous heat now forecast for the East Coast.
United States severe weather brought severe storms across the Midwest, leaving approximately 300,000 homes and businesses without power while also causing widespread damage, flight disruptions at major airports, and one fatality in Iowa, with a dangerous heat wave now forecast for the East Coast. [1]
Storms caused over 1,000 flight delays and cancellations, with temporary ground stops at Chicago O'Hare, Chicago Midway, and New York JFK airports. [1] High winds detached part of a Chicago apartment building roof, forcing evacuations. [1] The ground stops at the three major airports halted operations for a period on Wednesday evening as thunderstorms passed through the region. [1] Airlines worked to rebook passengers and resume schedules, with expectations that air traffic would return closer to normal on Thursday despite some lingering delays. [1] The disruptions affected travelers across multiple routes connecting the Midwest and Northeast. [1]

United States Severe Weather Leaves 300,000 Without Power in Midwest

United States severe weather brought severe storms across the Midwest, leaving approximately 300,000 homes and businesses without power while also causing widespread damage, flight disruptions at major airports, and one fatality in Iowa, with a dangerous heat wave now forecast for the East Coast. [1]

Widespread Power Outages Hit Midwest

Severe storms swept across the Midwest United States and left approximately 300,000 homes and businesses without power on Thursday. [1] The outages affected a broad swath of the region as high winds toppled trees and power lines in multiple states. [1] Fallen trees and downed lines created immediate hazards for residents and utility crews working to restore service. [1] The scale of the disruptions highlighted the intensity of the storms that moved through the area, with power companies reporting widespread impacts on both residential and commercial customers. [1] Restoration efforts were expected to continue amid ongoing weather concerns in parts of the Midwest. [1]

Tornado Reports and Fatalities

The National Weather Service received about a dozen reports of tornado damage in northern Missouri, Iowa, Kansas, and Illinois. [1] One person was killed by a falling tree in Iowa. [1] The fatality occurred as storms moved through the state and brought down trees onto structures and vehicles. [1] These reports underscored the destructive potential of the system that crossed several Midwestern states in a short period. [1] Damage assessments continued as additional surveys were conducted in the affected counties. [1]

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Flight Disruptions at Major Airports

Storms caused over 1,000 flight delays and cancellations, with temporary ground stops at Chicago O'Hare, Chicago Midway, and New York JFK airports. [1] High winds detached part of a Chicago apartment building roof, forcing evacuations. [1] The ground stops at the three major airports halted operations for a period on Wednesday evening as thunderstorms passed through the region. [1] Airlines worked to rebook passengers and resume schedules, with expectations that air traffic would return closer to normal on Thursday despite some lingering delays. [1] The disruptions affected travelers across multiple routes connecting the Midwest and Northeast. [1]

Local Severe Thunderstorm Warnings

Additional severe thunderstorm warnings were issued for areas in western New York and Illinois with threats of 60 mph winds and hail. [2] [3] In Cattaraugus County, New York, a warning noted 60 mph wind gusts and penny-size hail based on radar indications, with expected impacts to roofs, siding, and trees. [2] In Knox County, Illinois, another warning highlighted 60 mph wind gusts and quarter-size hail, also radar indicated, with potential hail damage to vehicles and wind damage to roofs, siding, and trees. [3] These warnings covered rural areas and major roadways such as Interstate 74. [3] Forecasters emphasized the rapid movement of the storms and the need for immediate precautions in the warned zones. [2] [3]

Dangerous Heat Wave Forecast for East Coast

Dangerous heat and high humidity are expected Thursday and Friday from the Mid-Atlantic to the Northeast, with temperatures nearing 40°C and possible daily records broken in multiple locations including Philadelphia. [1] The National Weather Service warned that daily temperature records could fall in numerous places as the heat builds. [1] Philadelphia issued alerts for oppressive conditions on Thursday and Friday. [1] The combination of high temperatures and humidity was forecast to create hazardous conditions for outdoor activities across the corridor. [1] Residents were advised to take precautions against heat-related illness during the peak hours of the day. [1]

Additional Weather Alerts Across the U.S.

Other active warnings included flooding in Missouri and a Fire Weather Watch in Alaska. [4] [5] The Flood Warning covered multiple rivers in Missouri, including the South Fabius River near Taylor, the North Fabius River near Ewing, and the Mid Fork Salt River near Holliday, with minor flooding forecast in some locations. [5] A Fire Weather Watch was in effect for Delta Junction, Alaska, from Saturday afternoon through Sunday evening due to low humidity, gusty winds, and elevated fire risk. [4] These alerts provided additional context on the range of severe weather conditions occurring simultaneously in different parts of the country. [4] [5]

What to watch next: Additional severe thunderstorm warnings remain possible in western New York and Illinois, while heat alerts continue for parts of the Mid-Atlantic through Friday.

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Last updated: June 11, 2026

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