Powerful thunderstorms will fire up from Denver to Chicago through this evening. The main threats will be large hail, damaging winds and torrential downpours, but an isolated tornado cannot be ruled out. Follow the latest radar activity for the highlighted cities below or zoom into your hometown on the Interactive Radar.
Rounds of rain to frequent northeastern US this week
Atlantic's next tropical storm to likely form in Caribbean later this week
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Chilly winds to howl across Great Lakes early this week