
Thunderstorm
04.07 3:49 a.m. 03:49 – 04.07 7:00 a.m. 07:00
Severe Thunderstorm Watch issued July 3 at 10:49PM CDT until July 4 at 2:00AM CDT by NWS Chicago IL SEVERE THUNDERSTORM WATCH 451 REMAINS VALID UNTIL 2 AM CDT /3 AM EDT/ SATURDAY FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS GRUNDY KANKAKEE WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, CHESTERTON, COAL CITY, DEMOTTE, DWIGHT, FAIRBURY, FOWLER, GARY, GIBSON CITY, GILMAN, HAMMOND, JOLIET, KANKAKEE, KENTLAND, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, OXFORD, PAXTON, PONTIAC, PORTAGE, RENSSELAER, ROSELAWN, VALPARAISO, WATSEKA, AND WILMINGTON.
National Weather Service
Flood
04.07 1:32 a.m. 01:32 – 04.07 9:00 a.m. 09:00
Flood Watch issued July 3 at 8:32PM CDT until July 4 at 4:00AM CDT by NWS Chicago IL * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kendall, La Salle, Lake IL, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...Until 4 AM CDT Saturday. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - Multiple rounds of heavy rainfall from thunderstorms possible across the area this evening into the overnight. Rain rates in excess of 1 to 2 inches per hour over areas that have previously received heavy rainfall may lead to flooding. - http://www.weather.gov/safety/flood A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.
National Weather Service
Flood
04.07 5:38 a.m. 05:38 – 04.07 5:00 p.m. 17:00
Flood Warning issued July 4 at 12:38AM CDT until July 4 at 12:00PM CDT by NWS Chicago IL * WHAT...Flooding caused by excessive rainfall will continue. * WHERE...Portions of the following counties, Cook, Will, and Lake. * WHEN...Until noon CDT Saturday. * IMPACTS...Creeks and streams are expected to rise out of their banks. Underpasses may be flooded. Roads and streets may be flooded. High water may recede slowly from flooded areas. * ADDITIONAL DETAILS... - At 1235 AM CDT, doppler radar indicated that heavy rainfall had moved out of the area. While the threat for heavy rainfall has ended, 1 to locally 5 inches of rain fell from earlier thunderstorms. Numerous creeks and streams are rising towards flood stage, and water levels will likely remain elevated well into Saturday morning. Standing water will continue to impact underpasses, low spots, and other poor drainage areas. - A Flash Flood Warning remains in effect for areas that received the heaviest rainfall where multiple creeks continue to climb rapidly, including the Midlothian, Homewood, and Thornton areas. - 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 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.
National Weather Service
Flood
04.07 3:41 a.m. 03:41 – 04.07 6:15 a.m. 06:15
376 WGUS73 KLOT 040508 FFSLOT Flash Flood Statement National Weather Service Chicago IL 1208 AM CDT Sat Jul 4 2026 ILC031-040645- /O.CON.KLOT.FF.W.0023.000000T0000Z-260704T0645Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Cook IL- 1208 AM CDT Sat Jul 4 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM CDT EARLY THIS MORNING FOR SOUTHEASTERN COOK COUNTY... At 1208 AM CDT, The heaviest rainfall has ended. However, doppler radar and automated rain gauges indicate 2 to 5 inches of rain fell in the warned area due to earlier thunderstorms, with the highest amounts near Homewood. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding continues in the warned area with several creeks and streams rising rapidly towards and above flood stage. HAZARD...Significant flash flooding. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset, significant flooding of creeks, streams, drainage ditches, low-lying areas, and poor drainage areas. Widespread street and underpass flooding. Possible flooding of structures. Possible flooding of highways. Some locations that will experience flash flooding include... Chicago, Hammond, Tinley Park, Calumet City, Chicago Heights, Lansing, Oak Forest, Harvey, Blue Island, Dolton, Park Forest, Homewood, Alsip, Matteson, Frankfort, Steger, South Holland, Country Club Hills, South Deering and Midlothian. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4164 8779 4168 8752 4147 8753 4147 8779 FLASH FLOOD...RADAR AND GAUGE INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE $$ Carlaw
National Weather Service
Flood
04.07 5:26 a.m. 05:26 – 04.07 6:00 p.m. 18:00
Flood Warning issued July 4 at 12:26AM CDT until July 4 at 1:00PM CDT by NWS Chicago IL ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Indiana...Illinois... Little Calumet River at Munster (Hohman Avenue) affecting Lake IN and Cook Counties. * WHAT...River flooding is expected. * WHERE...Little Calumet River from IN-912 in Hammond downstream to confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge. * WHEN...From early this morning to this afternoon. * IMPACTS...At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 12:00 AM CDT Saturday the stage was 11.7 feet. - Forecast...The river is expected to crest above flood stage overnight tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon.
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