All severe weather hazards will be possible including damaging winds, hail and hurricanes.
“Severe thunderstorms are likely associated with the threat of wind damage and large isolated hail Saturday from the mid Mississippi Valley north to the western Great Lakes region,” the Storm Forecasting Center said.
A level 2 of 5 “minor” risk of severe storms has been issued and includes more than 15 million people from Wisconsin to Arkansas, including Chicago and Indianapolis.
The best chance of severe storms throughout this area will be in the afternoon and evening hours when the daytime heating is at its peak.
While flooding may not be the primary concern of these storms, it is still something that needs to be watched.
Widespread 1 to 2 inches of rain is expected but some local areas may see 3 to 4 inches of rain over the weekend.
“So while we do not currently expect any major/widespread floods to develop, local issues are a possibility,” the World Petroleum Council said.
By Sunday, that first system will continue to shift east into the mid-Atlantic region.
Severe storms will be possible from western Pennsylvania all the way to the Virginia/Tennessee border in the latter half of the weekend. The main threat will be damaging winds.
Double Trouble for Texas
There will also be a new system moving through areas of Texas, New Mexico, Colorado, Kansas and Oklahoma on Sunday, but before that system arrives, gusty winds will already have started increasing the fire risk.
While rain would be welcome, lightning, hail and tornadoes are a different story.
“If we get some lightning in that area, it can actually start fires where the grass is already dry where it might not get as much rain as the storms move to the east,” Aaron Ward, a science and operations officer with the NWS Amarillo office told CNN. CNN. “That’s another thing we’ll be watching for, a possible fire starting due to lightning on Sunday.”
There is a level of 2 out of 5 “minor” risk of severe storms in parts of the high plains on Sunday and include the cities of Lubbock, Amarillo and Abilene, Texas.
These thunderstorms will likely bring all styles of severe weather, including very large hail.
“The main concerns right now, what we’re looking at, is going to be hail to very large, and it’s going to damage the winds,” Ward said. “A hail could easily be a golf ball the size of a baseball if everything came together just right.”
The timing of storms will be mainly in the afternoon and early evening hours, although some storms will persist in the overnight time frame.
CNN’s Catelyn Kaiser and Halle Brink contributed to this report.