At a Glance
- A line of severe thunderstorms will race through the western Great Lakes into early Thursday morning.
- Damaging thunderstorm winds with power outages could be widespread.
- This could meet criteria for a derecho, a long-lived, destructive thunderstorm wind event.
Severe thunderstorms with widespread damaging winds – possibly meeting criteria for a derecho – are expected through early Thursday morning in parts of the Midwest.
This is not a setup for just a few hit-or-miss strong thunderstorms. It has some ingredients of a textbook summer severe setup.
Very hot, humid air in the Plains states has pushed toward a frontal boundary set up over the upper Mississippi Valley as a vigorous jet stream plunges out of southern Canada into the northern Great Lakes…
