Active Weather Alerts
Tornado Watch
Issued: 8:31 PM Apr. 17, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 131 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 11 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE GRUNDY KANE KANKAKEE KENDALL LAKE IL WILL THIS INCLUDES THE CITIES OF AURORA, BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, CAROL STREAM, CHICAGO, COAL CITY, DOWNERS GROVE, DWIGHT, ELGIN, EVANSTON, FAIRBURY, GIBSON CITY, GILMAN, GURNEE, JOLIET, KANKAKEE, LEMONT, LOMBARD, MINOOKA, MORRIS, MUNDELEIN, NAPERVILLE, OAK LAWN, ORLAND PARK, OSWEGO, PARK FOREST, PAXTON, PLANO, PONTIAC, SCHAUMBURG, WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, AND YORKVILLE.
Tornado Watch
Issued: 8:31 PM Apr. 17, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 131 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS WINTHROP HARBOR TO WILMETTE HARBOR IL WILMETTE HARBOR TO NORTHERLY ISLAND IL NORTHERLY ISLAND TO CALUMET HARBOR IL
Small Craft Advisory
Issued: 7:58 PM Apr. 17, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT SATURDAY... * WHAT...South winds to 25 kt shifting to northwest on Saturday. Significant waves to 5 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 10 PM CDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Flood Watch
Issued: 4:48 PM Apr. 17, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM 3 PM CDT /4 PM EDT/ THIS AFTERNOON THROUGH LATE TONIGHT... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, Boone, Central Cook, De Kalb, DuPage, Eastern Will, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, La Salle, Lake IL, Lee, Livingston, McHenry, Northern Cook, Northern Will, Ogle, Southern Cook, Southern Will and Winnebago and northwest Indiana, including the following areas, Benton, Jasper, Lake IN, Newton and Porter. * WHEN...From 3 PM CDT /4 PM EDT/ this afternoon through late tonight. * IMPACTS...Creeks and streams may rise out of their banks. Ongoing river flooding may worsen. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. Area creeks and streams are already elevated, increasing the risk of flooding due to additional rainfall. * ADDITIONAL DETAILS... - Locally heavy showers and thunderstorms with rainfall rates up to 1 to 2 inches per hour may occur across the area later today through the overnight hours. Despite the expected relatively fast storm movement, anomalously high atmospheric moisture content will support high rainfall rates. In many areas, soil moisture remains very high, including areas near the Illinois-Wisconsin border where nearly saturated soils exist due to recent rainfall. While many areas may see lighter accumulations less than 0.5 inches, soils will be sensitive to rainfall. Areas near and downstream of heavy rainfall, particularly urban areas and locations in far northern Illinois, may see flash flooding and river flooding impacts, some locally significant. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
River Flood Warning
Issued: 4:17 PM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue and Corey Street south of East Dundee. Lincoln Avenue threatened in West Dundee. Filip Street and Fox River Drive threatened in Algonquin. Fox River Trail threatened south of downtown Elgin. At 11.5 feet, Residences threatened along Oceola Drive in Algonquin. A few residences threatened along McBridge Street in Elgin. Jayne Street and Beach Drive threatened in Algonquin. River Street threatened in East Dundee. Jerusha Avenue threatened in Elgin. Fox River Trail threatened between East Dundee and Elgin. * ADDITIONAL DETAILS... - At 10:30 AM CDT Friday the stage was 10.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Friday was 10.5 feet. The river climbed to moderate flood stage this morning. - Forecast...The river is expected to crest near 11.5 feet early next week. - Flood stage is 9.5 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 05/23/2020. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 4:05 PM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Residences threatened east of the river just south of IL-22 (Half-Day Road). Lincolnshire Drive threatened at Wiltshire Lane. At 15.0 feet, Structures threatened along IL-22 (Half-Day Road) just east of the river. Multiple structures threatened near and west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield Road threatened near the river. Multiple trails inundated in Half-Day Forest Preserve. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 13.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Friday was 13.7 feet. The rate of climb due to earlier rainfall has slowed. - Forecast...The river is expected to crest near 14.5 feet on Sunday due to forecasted rainfall today and tonight. - Flood stage is 12.5 feet. - Flood History...This crest compares to a previous crest of 14.4 feet on 05/01/2020. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 4:05 PM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until further notice. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 10:30 AM CDT Friday the stage was 9.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Friday was 9.3 feet. - Forecast...The river is expected to rise to crest near 9.5 feet on Sunday due to forecasted rainfall today and tonight. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 9.7 feet on 06/28/2018. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 4:05 PM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until further notice. * IMPACTS...At 8.0 feet, Agricultural and park land is inundated near the river. Residential property is threatened near the river. * ADDITIONAL DETAILS... - At 10:30 AM CDT Friday the stage was 8.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Friday was 8.6 feet. - Forecast...The river is expected crest near 8.7 feet overnight tonight. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 3:41 PM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, There is flooding of the lower levels of homes in the Town of Wheatland and Village of Salem Lakes areas long Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 10:00 AM CDT Friday the stage was 13.9 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Friday was 13.9 feet. - Forecast...The river is expected to rise to a crest of 14.2 feet just after midnight tonight. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 14.5 feet on 04/20/2013. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 1 pm... Location stage stage stage/time Sat Sun Mon Tue New Munster 11.0 10.0 13.88 10 am 4/17 14.0 13.4 13.2 12.8 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days New Munster 13.89 9 am 4/17 1.64 14.20 1 am 4/18 &&
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