Active Weather Alerts
Flood Watch
Issued: 2:39 PM Jul. 4, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH THIS EVENING... * WHAT...Flooding caused by torrential downpours is possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kendall, La Salle, Lee, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...From 1 PM CDT this afternoon through this evening. * IMPACTS...Flooding of streets, underpasses, basements, and vulnerable structures is possible. Storm drains and ditches may be clogged with debris, increasing the risk of flooding. This is especially true in the Chicago metropolitan area. * ADDITIONAL DETAILS... - Parts of the Flood Watch area have picked up 3 to 6 inches of rain in the past 48 hours. As a result, many rivers and creeks in the watch area are already at bankfull and soils are saturated. Additional torrential downpours today may lead to flooding, some of which could be significant particularly in the Chicago metropolitan area. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means flooding is possible, but not yet certain, based upon the latest forecasts. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop. Monitor the latest forecasts and be prepared to action should flooding develop. &&
Flood Advisory
Issued: 12:41 PM Jul. 4, 2026 – National Weather Service
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON CDT TODAY... * WHAT...Flooding caused by multiple rounds of thunderstorms continues. * WHERE...A portion of northeast Illinois, including the following counties, Cook and DuPage. * WHEN...Until noon CDT. * IMPACTS...Flooding is occurring in poor drainage and urban areas. Water may be covering roadways, especially along Route 53 near the Morton Arboretum. High water may recede slowly from flooded areas, possibly stalled by clogged drains. * ADDITIONAL DETAILS... - At 739 AM CDT, flooding was occurring in the warned area. In the past 48 hours, between 3 and 5 inches of rain has fallen. River gauges indicate that creeks and rivers are at or above bankfull, suggesting there are areas flooding in the area. - The worst flooding is occurring near the DuPage River in Downers Grove and Lisle, particularly near the Morton Arboretum. - Some locations that will experience flooding include... Chicago, Naperville, Cicero, Arlington Heights, Evanston, Schaumburg, Skokie, Des Plaines, Berwyn, Mount Prospect, Wheaton, Oak Park, Downers Grove, Glenview, Elmhurst, Lombard, Ohare Airport, Carol Stream, Park Ridge and Addison. - 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. Be especially cautious at night when it is harder to recognize the dangers of flooding. &&
Flood Warning
Issued: 12:39 PM Jul. 4, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL NOON CDT TODAY... * WHAT...Flooding caused by multiple rounds of thunderstorms continues. * WHERE...Portions of northeast Illinois, including the following counties, Cook and Will and northwest Indiana, including the following county, Lake IN. * WHEN...Until noon CDT. * IMPACTS...Flooding is occurring in poor drainage and urban areas. Roads and streets may be flooded. High water may recede slowly from flooded areas, possibly stalled by clogged drains. * ADDITIONAL DETAILS... - At 736 AM CDT, flooding was occurring in the warned area. In the past 48 hours, between 4 and 6 inches of rain has fallen. River gauges indicate that creeks and rivers are at or above flood stage, suggesting there are areas of standing water and flooding in the area. - Additional waves of storms may aggravate flooding today. - Some locations that will experience flooding include... Chicago, Hammond, Gary, Orland Park, Tinley Park, Oak Lawn, Calumet City, Chicago Heights, Roseland, Chicago Lawn, Englewood, South Shore, East Chicago, Schererville, Lansing, Oak Forest, Harvey, New Lenox, Homer Glen and Highland. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Warning means flooding is imminent or may already be occurring. Persons along rivers, creeks, 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. &&
River Flood Warning
Issued: 10:44 AM Jul. 4, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until late tomorrow evening. * IMPACTS...At 12.0 feet, Structures threatened along Glenwood Thornton Road north of Glenwood. * ADDITIONAL DETAILS... - At 5:30 AM CDT Saturday the stage was 10.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:30 AM CDT Saturday was 10.9 feet. - Forecast...The river is expected to rise to a crest of 12.5 feet this afternoon. It will then fall below flood stage tomorrow afternoon. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
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