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Wilmington, Ohio

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October 26, 2010
Squall Line and Embedded Tornadoes


A very intense area of low pressure pushed east through the Great Lakes region, with a strong cold front moving through the Ohio Valley. This led to the development of a squall line, which moved through the NWS ILN warning area during the mid-day and afternoon hours.

The squall line produced widespread wind gusts to 50-60 MPH, with some locations recording winds as high as 70-80 MPH. In addition, the strong wind shear associated with the weather system created a favorable environment for the development of tornadoes along the squall line. The most widespread damage occurred when a supercell collapsed over eastern Hamilton County, causing a severe bow echo to form within the squall line (see radar loop below). Peristent rotation developed within the bow echo, which caused a long-track swath of damaging wind and occasional tornadoes across a corridor 5-10 miles south of I-71 from northern Clermont County to southeast Franklin County, and continuing into central Licking County.

As of Friday, October 29, the majority of the storm damage has been assessed, with public information statements filed. Full details of the event, including tornado tracks and pictures, are being posted to the pages linked below. Updates to these pages will continue into the first week of November, as the remainder of the information is able to be made available.




Radar Loop
(1.2 MB)

Event Photos:
submit additional photos



Storm Map - Plotted Locations are Preliminary and Approximate

NOTE: Marker locations are approximate and are not accurate to street level
LOCAL STORM REPORTS:
Tornado Hail Thunderstorm Wind Gust Thunderstorm Wind Damage
Flood Flash Flood Non-Thunderstorm Wind Gust Non-Thunderstorm Wind Damage
Other Report  

REPORTS WITH PHOTOS:
Tornado Hail Thunderstorm Wind Gust Thunderstorm Wind Damage
Flood Flash Flood Non-Thunderstorm Wind Gust Non-Thunderstorm Wind Damage
Other Report  

Local Climate Water & Weather Topics:
Current Hazards, Current Conditions, Radar, Satellite, Climate, Weather Safety, Contact Us

National Weather Service
Wilmington Ohio Weather Forecast Office
1901 South State Route 134
Wilmington, OH 45177
Tel: (937) 383-0031
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Page last modified: October 29, 2010.
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