See Where Severe Weather Caused the Most Damage This Week

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Last week, a deadly storm system swept across parts of the Mississippi Valley, causing power outages for thousands of homes and killing at least three people in Oklahoma. Storms moved eastward throughout the past few days, delivering tornadoes and hail to large swaths of the South and Midwest.

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While the full scale of the damage is yet to be determined, the NOAA Damage Assessment Toolkit provides an early survey of the destruction. From April 20 to 24, NOAA surveyors logged over 150 instances of storm damage, including the full destruction of homes, electric wires, and other critical infrastructure. A closer look at the data reveals the counties where storms caused the most damage last week.

To determine where storms caused the most damage this week, Climate Crisis 247 reviewed data on post-storm damage assessments from the NOAA Damage Assessment Toolkit. Counties were ranked based on a custom storm damage impact score, a weighted aggregation of the severity of all NOAA damage assessment points within a given county. The severity is the product of the Enhanced Fujita (EF) scale value and an NOAA-assigned Degree of Damage (DoD) score. The storm damage impact score gives greater weight to larger buildings like manufactured homes and family residences that sustained greater degrees of damage, such as complete destruction or collapse of exterior walls. NOAA storm data is for the period April 20 to 24, 2025.

8. White County, AR

Storm damage impact score: 19 points
Number of storm damage reports: 3 assessments
Maximum reported wind speed: 90 mph
Summary of property damage: 2 small barns or farm outbuildings, 1 hardwood tree

7. Henry County, IL

Storm damage impact score: 35 points
Number of storm damage reports: 11 assessments
Maximum reported wind speed: 98 mph
Summary of property damage: 5 small barns or farm outbuildings, 1 electrical transmission line, 1 hardwood tree, 2 softwood trees

6. Jackson County, IL

Storm damage impact score: 39 points
Number of storm damage reports: 9 assessments
Maximum reported wind speed: 100 mph
Summary of property damage: 1 small barn or farm outbuilding, 3 one- or two-family residences, 2 hardwood trees, 3 softwood trees

5. Adams County, IL

Storm damage impact score: 47 points
Number of storm damage reports: 15 assessments
Maximum reported wind speed: 85 mph
Summary of property damage: 7 small barns or farm outbuildings, 1 one- or two-family residence, 1 metal building system, 1 electrical transmission line, 2 hardwood trees, 1 softwood tree

4. Tazewell County, IL

*Photo by Jennifer Birdie Shawker on Unsplash*

Storm damage impact score: 61 points
Number of storm damage reports: 14 assessments
Maximum reported wind speed: 90 mph
Summary of property damage: 3 small barns or farm outbuildings, 2 electrical transmission lines, 8 softwood trees

3. Knox County, IL

Storm damage impact score: 107 points
Number of storm damage reports: 30 assessments
Maximum reported wind speed: 98 mph
Summary of property damage: 7 small barns or farm outbuildings, 4 electrical transmission lines, 19 softwood trees

2. Monroe County, IL

Storm damage impact score: 148 points
Number of storm damage reports: 35 assessments
Maximum reported wind speed: 100 mph
Summary of property damage: 13 small barns or farm outbuildings, 4 one- or two-family residences, 1 double-wide manufactured home, 4 electrical transmission lines, 13 hardwood trees

1. Lonoke County, AR

Storm damage impact score: 210 points
Number of storm damage reports: 33 assessments
Maximum reported wind speed: 107 mph
Summary of property damage: 4 small barns or farm outbuildings, 1 double-wide manufactured home, 1 metal building system, 1 electrical transmission line, 11 hardwood trees, 10 softwood trees