Fox News Weather Center

Severe Weather Shifts to Chicago, St. Louis Sunday

Communities in and around Illinois will become the target of severe weather as the weekend comes to a close on Sunday.

The strongest thunderstorms on Sunday will be capable of producing damaging winds, hail and an isolated tornado or two.

Downpours accompanying the thunderstorms could create hazards for motorists (reduced visibility and water ponding on roadways), flash flooding and may slow the rate at which swollen rivers are currently receding.

The majority of the severe weather will wait until the afternoon hours to ignite from Madison, Wis., to Davenport, Iowa, to Peoria, Ill., to St. Louis and Cape Girardeau, Mo.

The danger for a powerful thunderstorm or two to cross Chicago and Indianapolis will span the afternoon and evening hours as the severe weather then shifts to the south and east.

Solely in the evening, the threat zone will encompass Memphis, Tenn., Louisville, Ky., and Fort Wayne, Ind.

Sunday's severe weather will be sparked by the same storm system returning the danger of damaging thunderstorms and tornadoes to Nebraska, Kansas and Oklahoma through this evening.

On Monday, showers and thunderstorms will occur along and ahead of the storm across most of the eastern third of the United States. Thunderstorms producing downpours this day will be most numerous across the eastern Ohio Valley and central Appalachians.

However, meteorologists are concerned that it will only take one drenching thunderstorm crossing parts of the I-95 corridor where Andrea shattered rainfall records on Friday to renew flooding problems.