A flash flood watch remains in effect after heavy rains pounded parts of the Chicago area Sunday.
That watch will remain in effect for DeKalb, McHenry, Boone, Lee, Ogle and Winnebago counties until Monday morning, according to officials, with several rounds of showers and thunderstorms expected in the coming hours.
An earlier flash flood warning for Cook and Will counties was allowed to expire after storms dumped as much as three inches of rain in some locations.
Continued rains Sunday mean flash flooding could potentially occur along low-lying roads, with water accumulating rapidly in ditches, culverts and retention ponds.
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Highways, streets and underpasses could also be impacted, with motorists urged to use extreme caution.
Some locations have reported receiving more than two inches of rain in just one hour this morning, according to officials. In Winnebago, more than 3.33 inches of rain has fallen since midnight, according to NWS.
In Kirkland, located in DeKalb County, more than 3.3 inches of rain has fallen, with precipitation still occurring. Machesney Park is also reported more than 3.4 inches of rain during that time.
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Rain is also moving into the southern portions of the Chicago area, with minor flooding of some roadways expected as the system slowly churns through the region.
Rainfall rates of two inches or more per hour are possible in some locations as the storms track off to the east and northeast.
Residents are urged to avoid flooded paths and roadways, and to prepare for periods of low visibility due to heavy downpours.
Flood reports should be sent to local law enforcement.
