Severe Thunderstorm Warning issued July 27 at 5:21PM CDT until July 27 at 6:00PM CDT by NWS Chicago IL
发布日期：2026-07-27T22:21+00:00
At 521 PM CDT, severe thunderstorms were located along a line extending from Clarendon Hills to Willow Springs to Crestwood to Markham, moving south at 40 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Joliet, Bolingbrook, Orland Park, Tinley Park, Downers Grove, Romeoville, Calumet City, Woodridge, Chicago Heights, Lansing, Oak Forest, Harvey, Lockport, New Lenox, Homer Glen, Blue Island, Dolton, Park Forest, Homewood, Matteson, Mokena, Frankfort, Steger, Peotone, and Lisle.
Flash Flood Warning issued July 27 at 3:36PM CDT until July 27 at 6:45PM CDT by NWS Chicago IL
发布日期：2026-07-27T20:36+00:00
FFWLOT The National Weather Service in Chicago has issued a * Flash Flood Warning for... Northeastern Kendall County in northeastern Illinois... Northwestern Will County in northeastern Illinois... * Until 645 PM CDT. * At 336 PM CDT, Doppler radar indicated thunderstorms producing rainfall rates of 1 to 3 inches per hour. Up to 1.5 inches has fallen from this storm over the last 30 minutes near Plainfield and Oswego. Flash flooding is 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... Joliet, Bolingbrook, Romeoville, Plainfield, Oswego, Lockport, New Lenox, Homer Glen, Mokena, Frankfort, Channahon, Minooka, Crest Hill, Shorewood, Manhattan, Ingalls Park, Elwood, Preston Heights.
Severe Thunderstorm Watch issued July 27 at 2:19PM CDT until July 27 at 7:00PM CDT by NWS Chicago IL
发布日期：2026-07-27T19:19+00:00
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 520 IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN EAST CENTRAL ILLINOIS IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE LAKE IL WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, CAROL STREAM, CHESTERTON, CHICAGO, DEMOTTE, DOWNERS GROVE, EVANSTON, FOWLER, GARY, GILMAN, GURNEE, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MOROCCO, MUNDELEIN, NAPERVILLE, OAK LAWN, ORLAND PARK, OXFORD, PARK FOREST, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WAUKEGAN, WHEATON, AND WILMINGTON.
Heat Advisory issued July 27 at 8:03AM CDT until July 27 at 9:00PM CDT by NWS Chicago IL
发布日期：2026-07-27T13:03+00:00
* WHAT...Peak heat index values up to 100 to 110 degrees expected. * WHERE...Iroquois, Central Cook, DuPage, Eastern Will, Kankakee, Lake IL, Northern Cook, Northern Will, Southern Cook, and Southern Will Counties. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
