Active Weather Alerts
Flash Flood Warning
Issued: 11:21 AM Aug. 17, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT THIS MORNING FOR NORTHERN IROQUOIS, NORTHEASTERN GRUNDY, KANKAKEE, SOUTHERN KENDALL AND SOUTHWESTERN WILL COUNTIES... At 621 AM CDT, While the heaviest rainfall rates have diminished, doppler radar indicated additional scattered thunderstorms producing heavy rain across portions of the warned area. Additional rainfall amounts up to 1 inch are possible in the warned area within the next hour. Flash flooding is likely already occurring in portions of the warned area. HAZARD...Flash flooding. SOURCE...Radar. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. Some locations that will experience flash flooding include... Kankakee, Bourbonnais, Yorkville, Bradley, Morris, Channahon, Minooka, Manteno, Braidwood, Wilmington, Coal City, Momence, Herscher, Clifton, Shorewood, Diamond, Elwood, Limestone and Gardner. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...1 INCH IN 1 HOUR
Flood Advisory
Issued: 10:22 AM Aug. 17, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 715 AM CDT THIS MORNING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of central, east central, north central, and northeast Illinois, including the following counties, in central Illinois, Livingston. In east central Illinois, Ford and Iroquois. In north central Illinois, La Salle. In northeast Illinois, Grundy and Kankakee. * WHEN...Until 715 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 520 AM CDT, Doppler radar indicated thunderstorms producing torrential rainfall across portions of the advisory area. Radar estimates that up to 2 inches of rain have already fallen in some locations. - Additional rainfall amounts of 1 to 2 inches are expected over portions of the advisory area. Runoff from the rain that has occurred and additional rainfall will result in flooding. - Some locations that will experience flooding include... Streator, Watseka, Marseilles, Dwight, Gilman, Clifton, Milford, Chatsworth, Seneca, Gardner, Onarga, Forrest, Sheldon, Odell, Mazon, South Streator, Cissna Park, Piper City, Ashkum and Buckley. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
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