× Hydrologic Outlook
Until 2025-04-03T15:00:00-05:00 • National Weather Service
ESFLOT Flooding of rivers, creeks, ditches, and poor drainage areas is possible across portions of northeast Illinois and northwest Indiana late Friday into Saturday. River rises and flooding will be possible along the Iroquois, Kankakee, and Illinois rivers. Periods of showers with possible embedded thunderstorms will move through the region late Friday into Saturday. Widespread rainfall amounts of 1 to 2 inches may occur near and south of Interstate 80, with localized amounts in excess of 2 inches possible. Runoff from any rainfall will be increased due to high soil moisture from recent rains and may lead to rises on area streams and rivers in addition to localized flooding of poor drainage areas. While confidence in where the highest rainfall totals occur remains low at this time, there is a higher potential for areas near and south of Interstate 80. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor forecasts including the possibility of flood watches, warnings, and advisories. The next scheduled update to this outlook is expected this afternoon.