Severe Storm Warning, Flash Flood Watch Issued For IL Counties

ILLINOIS — A severe storm warning is in effect until 10 p.m. for northeastern Kendall County, northwestern Will County, southern Kane and southwestern DuPage County. The National Weather Service said a severe storm was spotted over Sugar Grove near Aurora at around 9:18 p.m., heading east at 45 mph. Winds of 60 mph and quarter-sized hail were reported.

Locations impacted include: Aurora, Naperville, Bolingbrook, Wheaton, Romeoville, Plainfield, Oswego, West Chicago, Batavia, Lisle, Yorkville, Montgomery, North Aurora, Warrenville, Winfield, Sugar Grove and Boulder Hill.

The NWS warned of possible hail damage to vehicles and wind damage to roofs, siding and trees. Rainfall of up to 2 inches was expected across the area.

A flood advisory was also in place for northern Kendall County, Lake County, northwestern Will County, Kane County, McHenry County, DuPage and Cook County until 12:15 a.m. A flash flood watch is in place until 7 a.m. Wednesday for counties including Cook, DeKalb, DuPage, Grundy, Kane, Kendall, La Salle, Lake, Lee, McHenry, Ogle, Will and Winnebago.

Locations that could experience flooding include Chicago, Aurora, Naperville, Elgin, Waukegan, Cicero, Arlington Heights, Evanston, Schaumburg, Bolingbrook, Palatine, Skokie, DesPlaines, Orland Park, Oak Lawn, Berwyn, Mount Prospect, Wheaton, Hoffman Estates and Oak Park.

Several rounds of severe storms could bring with them the potential for heavy rainfall and flooding. Strong winds are the main hazard with these predicted storms, NWS said, although there is a limited tornado risk.

That threat comes on the 28th anniversary of the devastating 1990 tornado, which struck Plainfield, Crest Hill and Joliet, killing 29 people and leaving major destruction in its wake.

Police in Plainfield said weather spotters may be needed around and after 10 p.m. Tuesday as a round of storms rolls through the area.

Multiple rounds of thunderstorms could hit through the night. Heavy rain is also possible with Tuesday's predicted storms, which could lead to a flash flood threat, especially for areas along and north of I-88, according to the NWS. The highest flooding threat could come after severe weather, and the Rockford area and the far northern suburbs are under the highest risk for flooding Tuesday night.

According to the National Weather Service, the timing for the storms is from 3 p.m. Tuesday to 12 a.m. Most of the Chicago area and suburbs are at risk of scattered severe storms, while the far southern suburbs are under an isolated severe threat.

The NWS said possible hazards with these storms include hail up to quarter size, damaging winds, frequent lightning and heavy rain.

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