Illinois has been struck by two distinct tornado outbreaks within a single week in June 2026, a June 11 outbreak that confirmed at least 20 tornadoes including two EF-3s near Chicago, and a second, fresh outbreak Wednesday night that tore through Charleston and Effingham in central Illinois, leaving a trail of structural destruction, toppled trees, downed power lines and tens of thousands of customers without electricity across at least a dozen counties.
Illinois Under Siege: A Week of Relentless Storms
Illinois entered the week of June 16 already measuring tornado damage from one of the most destructive outbreaks in its recent history. By Wednesday night, a second system moved in, and the state found itself confronting the exhausting reality of back-to-back severe weather events separated by fewer than seven days.
Together, the two outbreaks have confirmed more than 20 tornadoes across Illinois, left communities from the Chicago suburbs to central and eastern farmland counties in various stages of emergency response, and stripped electricity from tens of thousands of homes and businesses in counties where utility crews were still finishing repairs from the first event.
“It’s an extraordinarily active stretch,” CBS News senior meteorologist Rob Marciano told the network Wednesday, noting that at least seven tornadoes had been reported during the second outbreak alone, on top of the 20-plus confirmed from June 11.
The June 11 Outbreak: EF-3s Near Chicago
The first and more destructive of the two events struck the afternoon and evening of Thursday, June 11, when a major tornado outbreak swept across northern Illinois and northwest Indiana.
The National Weather Service’s Chicago office confirmed at least 20 tornadoes in its area of responsibility from that event, including two rated at EF-3 intensity, the fourth level on the Enhanced Fujita scale, capable of producing winds between 136 and 165 miles per hour. An EF-3 tornado carved a path from Long Point to Streator, Illinois, in La Salle County, while a second EF-3 struck Kouts, Indiana, just across the state line.
Fox 32 Chicago reports that the Streator-area tornado was among the most damaging in that city’s recent history. Law enforcement confirmed that at least eleven homes were damaged in Streator, some completely destroyed, and four residents were transported to hospitals with non-life-threatening injuries. Cleanup crews faced the additional challenge of downed power poles, uprooted trees and debris fields stretching for blocks in the hardest-hit zones.
Other confirmed tornadoes from June 11 included an EF-2 from Hickory Hills to near Chicago’s Midway Airport, an EF-2 in Merrillville, Indiana, and EF-1s in Bartlett, Dwight, Wenona, and areas east of Ludlow. The National Weather Service issued a rare Tornado Emergency alert around 5:11 p.m. CT for the Washburn, Illinois, area as a confirmed, dangerous tornado was tracked on the ground.
Nearly 500,000 customers across Illinois, Indiana, Wisconsin, and Michigan lost power from the June 11 outbreak at its peak, utility tracker data showed. By Monday of this week, ComEd reported approximately 2,600 customers still without service in Illinois — figures that were overtaken by the new outage totals generated by Wednesday’s storm.
Wednesday Night: Charleston and Effingham
The second outbreak arrived Wednesday evening, targeting a corridor of central Illinois communities that had received little to no damage from the first event.
The National Weather Service confirmed a tornado rolled through Charleston in Coles County at approximately 6:40 p.m. local time. Video captured by FOX Weather storm tracker Brandon Copic and shared widely on social media showed a rain-wrapped large tornado approaching the city from the southwest before tearing through the north side of town. In the aftermath, Charleston police reported a large number of trees blocking roadways throughout the city and instructed residents to shelter in place. “Unless it is an absolute emergency, do not drive or attempt to go anywhere,” the department said in a Facebook post.
The city of Charleston subsequently declared a local state of emergency, unlocking municipal and county-level emergency resources and setting the stage for a potential appeal to the state for disaster assistance.
About 40 miles southwest, Effingham and surrounding Effingham County also reported significant damage. A YouTube video sourced from a county deputy and published by FOX Weather showed a home in Effingham County completely destroyed, a mobile home flipped, and a vehicle crushed, with two residents transported to the hospital with what were described as non-life-threatening injuries. The Effingham Fire Department confirmed a tornado moved through the area just after 8 p.m.
Larry Thies, coordinator for the Effingham Emergency Management Agency, told CBS News that initial assessments pointed to damaged buildings, trailers and downed power lines and trees throughout the affected zone. The full scope of damage was still being assessed as of Wednesday night, with emergency management teams working through darkness to reach affected areas.
Blue Mound: A School in the Storm’s Path
Among the most striking images to emerge from Wednesday’s outbreak was the damage to Meridian Elementary School in Blue Mound, in Macon County. WAND-TV, the Decatur-area NBC affiliate, reported that parts of the school’s roof were torn away and left hanging from the building’s frame, with roofing materials and tarp fragments scattered across the school grounds and into the surrounding neighborhood.
No students were inside the building when the tornado struck, and no injuries were reported at the school. Local officials began assessing whether the structure would need to be condemned before the start of the next academic year, a prospect that local administrators said would have major logistical implications for the small Blue Mound community.
Power Outages: Twelve Counties in the Dark
PowerOutage.us data tracked by WAND-TV shows that as of late Wednesday night, more than 35,000 customers were without power across at least twelve Illinois counties, with Coles County (home to Charleston) and Macon County (home to Blue Mound and Decatur) among the hardest hit. Coles County alone showed approximately 12,171 outages, and Macon County recorded 12,442.
CBS News reported the total Illinois outage count had reached at least 55,000 customers by Wednesday evening, spanning from the initial Charleston and Effingham damage zones into adjacent counties as the storm system pushed eastward. Ameren Illinois, the primary electrical utility serving central and southern Illinois, mobilized restoration crews overnight but cautioned that the combination of downed power lines, active debris fields and road obstructions in communities like Charleston and Effingham was slowing access to damaged infrastructure.
Hail, Winds and Multi-State Reach
Wednesday’s outbreak extended well beyond Illinois’ borders, consistent with the same atmospheric system that produced the earlier June 11 event. The National Weather Service confirmed a tornado near the northeast Iowa community of Harpers Ferry at 5:10 p.m. local time, approximately 90 minutes before the Charleston tornado touched down, suggesting a single organized storm system tracking southeast across multiple states.
CBS News reported hail measuring 2.75 inches — larger than a tennis ball — in the Charleston area, compounding structural damage from tornado-force winds and adding to the hazards faced by emergency responders moving into affected neighborhoods after dark.
FOX Weather’s storm damage reports map showed the highest concentration of damage reports tracking from Iowa through central Illinois and into Indiana, consistent with what meteorologists describe as a discrete supercell environment ahead of a larger line of organized severe storms.
Emergency Response and Ongoing Threat
Illinois Governor J.B. Pritzker’s office and the Illinois Emergency Management Agency (IEMA) have not yet issued formal statewide disaster declarations in connection with Wednesday’s outbreak as of early Thursday morning, but local emergency officials in Charleston and Effingham County have already activated their incident command structures, and requests for state-level assistance are expected to follow once full damage assessments are compiled.
For residents in the affected areas, the National Weather Service and local emergency managers are advising against any non-essential travel until debris is cleared and power lines can be confirmed safe. Residents whose homes sustained structural damage are urged to avoid re-entry until local building inspectors have certified structural, a process that, in communities like Streator, took several days after the June 11 event.
The forecast through the end of the week offers little reprieve: the Storm Prediction Center has maintained elevated severe weather risk designations for portions of the central and eastern Midwest through the weekend, suggesting that already-strained emergency management and utility restoration resources across Illinois could face continued pressure.
For a state that has now absorbed two major tornado outbreaks in less than seven days, the priority Thursday morning is damage assessment, power restoration and ensuring that communities from Streator to Charleston to Effingham have the resources they need, before the next system arrives.