Active Weather Alerts
Severe Thunderstorm Warning
Issued: 2:22 AM Apr. 15, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTHERN WINNEBAGO COUNTY... At 921 PM CDT, severe thunderstorms were located along a line extending from near Rockford to Winnebago, moving east at 45 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Rockford, Loves Park, Machesney Park, Rockford Airport, Cherry Valley, Winnebago, Pecatonica, and Seward. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until midnight CDT for north central Illinois. Prepare immediately for damaging winds and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...0.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Tornado Watch
Issued: 1:50 AM Apr. 15, 2026 – National Weather Service
TORNADO WATCH 109, PREVIOUSLY IN EFFECT UNTIL 10 PM CDT THIS EVENING, IS NOW IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 8 COUNTIES IN NORTH CENTRAL ILLINOIS BOONE DE KALB LEE OGLE WINNEBAGO IN NORTHEAST ILLINOIS KANE LAKE IL MCHENRY THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE, BUFFALO GROVE, BYRON, CRYSTAL LAKE, DEKALB, DIXON, ELGIN, GURNEE, MCHENRY, MUNDELEIN, OREGON, ROCHELLE, ROCKFORD, SYCAMORE, WAUKEGAN, AND WOODSTOCK.
Flash Flood Warning
Issued: 1:37 AM Apr. 15, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Flash Flood Warning for... Boone County in north central Illinois... Winnebago County in north central Illinois... * Until 245 AM CDT Wednesday. * At 837 PM CDT, Doppler radar indicated a line of thunderstorms producing heavy rain with rates of 1 to 2.5 inches per 1 hour. Additional rainfall amounts of 0.5 to 2.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding. SOURCE...Radar. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. * Some locations that will experience flash flooding include... Rockford, Belvidere, Loves Park, Machesney Park, Roscoe, South Beloit, Rockton, Poplar Grove, Rockford Airport, Candlewick Lake, Cherry Valley, Winnebago, Davis Junction, Pecatonica, Lake Summerset, Durand, Capron, Timberlane, New Milford and Garden Prairie. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, 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. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR
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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