####018002081#### FGUS73 KLOT 011631 ESFLOT ILC053-063-075-091-093-099-105-197-INC007-073-089-111-127-020600- Hydrologic Outlook National Weather Service Chicago IL 1131 AM CDT Mon Apr 1 2024 ...Additional waves of rainfall may lead to flooding across portions of northern Illinois and northwestern Indiana... Isolated flooding of ditches, creeks, and poor drainage areas likely across northeastern Illinois and northwestern Indiana, generally near and south of I-80. Flash flooding of creeks, streams, roadways, and poor drainage areas possible along and south of US-24. Significant river rises and minor river flooding possible along the Iroquois, Kankakee, and Illinois rivers. A swath of heavy rainfall occurred along the I-80 corridor overnight, with rainfall accumulations up to 2.5 inches. Elsewhere in northern Illinois and northwestern Indiana, rainfall accumulations up to 0.5 inches were widespread. Soil moisture is at least slightly elevated across the area, with near saturated soil moisture conditions likely extending from near I-80 southward to near US-24. Showers and thunderstorms are expected to develop later today, with multiple rounds of rainfall moving through northern and central Illinois and northwestern Indiana occurring through tomorrow night. Storm movement tomorrow favors the possibility of multiple thunderstorms moving over the same general areas, which increases the chance of heavy rainfall accumulations. Multiple swaths of rainfall of 1-2 inches are possible, with isolated accumulations up to 3 inches, especially south of US-24. 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. No additional Hydrologic Outlooks are expected for this event, but other flood related products may be issued and/or updated over the next few days as the threat evolves. $$ WSL