This is an image of the 18z GFS 24 hours out from now.
Strong low pressure will be carrying warm front into the Upper Midwest and a cold front behind it. The warm front will carry warm air into the area of Central Illinois southward and westward.
However, the real concern will be the cold front behind it. That cold front will create a squall line. At this time, we can expect the squall line to be, at best, moderately strong. The ‘fire’ inside the storm just won’t be there. However, the severe weather risk is still there. A write up will be issued tomorrow.
In the Southeast, high pressure will reign supreme and keep the atmosphere nice and sunny. I cannot rule out sprinkles due to all the humidity and warm air.
Low pressure out east will stretch the warm air along the Eastern Seaboard.
Curving arctic air flow from above will keep some areas of the East Great Lakes cool.
Cold air in the Northwest will keep the atmosphere likely cloudy.
This has been a forecast discussion. Another one will be issued at 7:30pm CDT tomorrow.