A dangerous outbreak of severe weather is developing across the Midwest and Ohio Valley, capable of producing dangerous thunderstorms and widespread wind damage similar to that of a derecho.
Some of the cities and towns most at risk for severe weather into Wednesday night include Chicago, Columbus, Ohio, Fort Wayne, Ind., Aurora, Ill., Dayton, Ohio, and Louisville, Ky.
The storms can be rapidly moving and generate wind gusts over 80 or even 100 mph. The vast majority of observed wind reports with this type of system, however, are usually between 60 and 70 mph.
For the full story, read "Derecho Risk From Chicago to Columbus."
Continue to check back throughout the evening for the latest reports.
Derecho: 'The Land Hurricane'
Severe Storm, Tornado Risk Thursday Philly to DC, Norfolk
UPDATES: (All times listed in CDT)
2:34 p.m. CDT Wednesday: "Thunderstorms developing across eastern Iowa, northern Illinois and southern Wisconsin will quickly turn severe," AccuWeather.com Meteorologist Brian Edwards said. "Conditions are ripe across this zone stretching from Mason City, Iowa, through Dubuque, Iowa, over to Chicago for a few long-lived, long-track tornadoes. These initial thunderstorms will have the greatest potential to produce tornadoes before they transition into an organized complex later this evening and overnight as a widespread damaging wind threat shifts farther east into the Ohio Valley."
1:50 p.m. CDT Wednesday: The National Weather Service Storm Prediction Center has issued a Particularly Dangerous Situation for northeastern Iowa, northern Illinois, extreme southeastern Minnesota and southwestern Wisconsin through 9:00 p.m. CDT. Primary threats include several intense tornadoes, possible wind gusts to 80 mph and very large hail.
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