The East Regional News story reports the peak of the heat will come Sunday and Monday. Philadelphia and Washington, D.C., will surge into the upper 90s by the beginning of the week. Parts of the Carolinas will continue to surpass the century mark into the first part of the week.
Along the northern extent of 90-degree heat, damaging storms will erupt from the central Plains to the Great Lakes. The Midwest Regional News story reports that thunderstorms will spark through tonight from Nebraska to Wisconsin. Moisture and warmth will continue to surge into the area, helping to fuel the severe storms.
According to the Severe Weather Center, the strongest storms will produce damaging winds, hail, and even tornadoes. Flash flooding will be a serious threat tonight as well, with already swollen rivers only to endure more, with heavy rain in the forecast.
As of Saturday evening, a large, and extremely dangerous tornado was sighted just south of Chicago, and moved northeastward into the suburbs. Initial reports this evening have indicated there has been structural damage in the area, but the damage extent is not known.
High winds and storms caused flight delays and cancellations in the city. Dozens of flights at O'Hare International Airport were canceled, while delays averaged 90 minutes. Midway International Airport reported some flights were delayed up to an hour.
Overnight, strong and severe storms will continue to pound the region from northern Kansas into lower Michigan. As a storm exits the eastern Rockies and heads toward the Great Lakes through Sunday, severe storms will continue to affect portions of the Midwest.
The warm air will also set the stage for thunderstorms in Texas tomorrow with a moisture surge into the region. Drenching storms will develop across the southern tip of the state as more widely separated storms spread into central and eastern parts by the afternoon. The rain, unlike in the Midwest, will be welcomed news as southern Texas continues to deal with a severe drought.