Advarsler Blackstone Hall, Illinois

Flood

4.7 1.32 AM 01.32 – 4.7 9.00 AM 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

4.7 5.38 AM 05.38 – 4.7 5.00 PM 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

4.7 3.41 AM 03.41 – 4.7 6.15 AM 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

4.7 2.43 AM 02.43 – 4.7 6.45 AM 06.45

Flood Advisory issued July 3 at 9:43PM CDT until July 4 at 1:45AM CDT by NWS Chicago IL * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following counties, Cook and Will. * WHEN...Until 145 AM CDT. * 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... - At 943 PM CDT, Doppler radar indicated heavy rain due to thunderstorms with rainfall rates of 1 to 2 inches per hour. Some locations have already received multiple waves of rainfall, with additional thunderstorms moving into the area. Urban flooding of yards and roadways may begin shortly. - Some locations that may experience flooding include... Chicago, Joliet, Elgin, Cicero, Hammond, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, Berwyn, Mount Prospect, Hoffman Estates, Oak Park, Glenview and Buffalo Grove. - http://www.weather.gov/safety/flood 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.

National Weather Service