Active Weather Alerts
Severe Thunderstorm Warning
Issued: 2:28 AM Apr. 15, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Lake County in northeastern Illinois... Southeastern McHenry County in northeastern Illinois... Northern DuPage County in northeastern Illinois... Northern Cook County in northeastern Illinois... * Until 1030 PM CDT. * At 928 PM CDT, severe thunderstorms were located along a line extending from McCullom Lake to Gilberts to near Sycamore, moving east at 60 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Severe thunderstorms will be near... Elgin, Hoffman Estates, Bartlett, Streamwood, Algonquin, Round Lake Beach, Lake Zurich, Round Lake, Wauconda, and Fox Lake around 935 PM CDT. Arlington Heights, Schaumburg, Palatine, Hanover Park, Gurnee, Mundelein, West Chicago, Vernon Hills, Grayslake, and Libertyville around 940 PM CDT. Waukegan, Mount Prospect, Buffalo Grove, Carol Stream, Wheeling, Elk Grove Village, St. Charles, North Chicago, Lake Forest, and Roselle around 945 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. Prepare immediately for damaging winds and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. A Tornado Watch remains in effect until midnight CDT for northeastern Illinois. && TORNADO...POSSIBLE; THUNDERSTORM DAMAGE THREAT...CONSIDERABLE; HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...70 MPH
Tornado Watch
Issued: 1:50 AM Apr. 15, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS EXTENDED TORNADO WATCH 109 TO INCLUDE THE FOLLOWING AREAS UNTIL MIDNIGHT CDT TONIGHT IN ILLINOIS THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST ILLINOIS COOK DUPAGE THIS INCLUDES THE CITIES OF CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, SCHAUMBURG, AND WHEATON.
Flood Watch
Issued: 12:11 AM Apr. 15, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT UNTIL 6 AM CDT WEDNESDAY... * 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, Kane, Kendall, Lake IL, McHenry, Northern Cook, Northern Will, Ogle, Southern Cook, Southern Will and Winnebago and northwest Indiana, including the following area, Lake IN. * WHEN...Until 6 AM CDT Wednesday. * 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... - An area of thunderstorms with rain rates up to one to two inches per hour is expected to move through the area this evening through the overnight hours. Elevated soil moisture due to recent rainfall is expected to increase the susceptibility to flash flooding. - 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. &&
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