Photo of vivid lightning courtesy of Photos.com
A cold front cutting through the Midwest will usher in fall-like air, but not before powerful thunderstorms erupt through early tonight.
Thunder has already rumbled this morning across Iowa, Wisconsin and Nebraska. A few spots just north of La Crosse have even had wind gusts to 60 mph with hail the size of quarters.
A cocktail of warm and humid air ahead of the cold front will bubble into a frenzy of dangerous thunderstorms into early tonight.
Cities caught in the crosshairs will include Indianapolis to St. Louis and Tulsa through early tonight.
The main threats with these potent storms will be damaging blast of wind, more quarter-sized hail and vivid, dangerous lightning.
The worst is through Chicago, but the storms brought flight delays of a couple of hours earlier in the day. Similar delays can occur in St. Louis and Indianapolis from the storms through early tonight.

If you will be out and about, pay close attention to the weather. Be sure to heed any watches or warnings that may be issued and remember to never drive across a flooded roadway.
Be sure to stay with us at AccuWeather.com for all the latest details on this impending severe weather event.
Content contributed by Andy Mussoline, Meteorologist
Severe thunderstorms with the risk of a few tornadoes will advance eastward across the northern Plains and Upper Midwest into Friday.
A dangerous outbreak of severe storms will strike the northern High Plains and Canadian Prairies on Wednesday.
Evacuations and closed roads as wildfires continue to burn across the United States.
Join us on Thursday for AccuWeather LIVE as we will discuss the debate of climate change and hurricane frequency and the top five things you need to know about summer weather.
A hot and humid weekend is shaping up for Chicagoland just in time for the official start of summer, while severe thunderstorms fire nearby to the north.
Tropical Storm Barry formed over the southwestern Gulf of Mexico and may hit the Mexico state of Veracruz Thursday.
| Extreme | Location | |
|---|---|---|
| High | N/A | |
| Low | N/A | |
| Precip | N/A |
Annette, AK (1991)
Record high of 86 degrees; the old record was 79
set in 1958.
Starksville, GA (1862)
Civil war drought: "The failure of oats in the
region is total. Some wheat will be made but
the crop is light and inferior."
Alpena, MI (1992)
Wet snow mixed with rain during the afternoon
hours.
Comments
Comments left here should adhere to the AccuWeather.com Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.