Updated: Severe Thunderstorm Watch issued for overnight
Thunderstorms will continue to develop in eastern Iowa and western Illinois and move east over our area tonight. The Severe Thunderstorm Watch will likely be dropped before it expires at 1AM CDT, as strongest storms seem to have heavy, in some cases brief flood-producing downpours, but no damaging winds or large hail. Flooding looks to be our main problem for the overnight hours into early Wednesday morning.
A Severe Thunderstorm Watch is in effect until 1AM CDT for the following Chicago-area counties south of Interstate-80…(blue-shaded area on the headlined map)…
Ford, Grundy, Iroquois, Kankakee, LaSalle and Livingston counties in Illinois
Benton, Jasper and Newton Counties in Indiana
The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Illinois Northwest Indiana * Effective this Tuesday night and Wednesday morning from 850 PM until 100 AM CDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph likely A tornado or two possible SUMMARY...A fast-moving line of thunderstorms will track across the watch area, posing a risk of locally damaging wind gusts and some hail. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 45 miles southwest of Marseilles IL to 25 miles south of Valparaiso IN.