After an evening of storms that down trees and caused power outages in several Chicago suburbs, another round of showers and storms is possible Wednesday.
Isolated to scattered showers and storms, some of which could bring severe conditions, are expected during the late afternoon and evening hours, though there remains uncertainty surrounding if and when they would develop. Should any such storms reach the Chicago area, a few may produce gusty winds of up to 60 mph and heavy rain, though the risk of severe conditions remains lower for most.
Much of the metro area is under a general risk for severe weather, but some southern counties are in the higher marginal risk category.
The storms likely won't stretch across the Chicago area, instead affecting between 30 and 40%.
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The storms will likely usher in slightly cooler, but still humid conditions after a hot and humid Wednesday that sparked a heat advisory for some locations. Heat index values are expected to rise to near 108 degrees in locations along and south of Interstate 80. By Thursday, those values should stay below 100 degrees, however.
The threat for isolated showers and storms will continue for the remainder of the week and into the weekend with potentially severe conditions once again Thursday.