Flood Watch

Locations Affected

Saint Louis, MO ∙ O'Fallon, MO ∙ Saint Charles, MO ∙ Saint Peters, MO ∙ Florissant, MO ∙ North Dupo, IL ∙ Wilsonville, IL ∙ Alhambra, IL ∙ Charmwood, MO ∙ Saint Rose, IL

Full Alert Message

URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service St Louis MO 313 AM CDT Fri Apr 4 2025 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SATURDAY NIGHT... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Bond IL, Clinton IL, Fayette IL, Madison IL, Marion IL, Monroe IL, Randolph IL, Saint Clair IL and Washington IL and Missouri, including the following areas, Crawford MO, Franklin MO, Iron MO, Jefferson MO, Madison MO, Reynolds MO, Saint Francois MO, Saint Louis City MO, Saint Louis MO, Sainte Genevieve MO and Washington MO. * WHEN...Through late Saturday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Several rounds of showers and thunderstorms are expected through Saturday night, with the heaviest rainfall and greatest threat of flash flooding this evening into early overnight. Moderate to major river flooding is possible in response to heavy rainfall amounts.

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