Illinois, Indiana Severe Severe Thunderstorm Warning | Effective 07/27/2026 11:37

Headline: 
Severe Thunderstorm Warning issued July 27 at 1:37PM CDT until July 27 at 2:15PM CDT by NWS Chicago IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 27, 2026 - 11:37am
Expires: 
July 27, 2026 - 12:15pm
Description: 
At 137 PM CDT, a severe thunderstorm was located over Hammond, moving southeast at 35 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Chicago, Hammond, Gary, Calumet City, Portage, Merrillville, Roseland, South Shore, East Chicago, Schererville, Hobart, Lansing, Highland, Munster, Dolton, Chatham, Auburn Gresham, South Holland, Griffith, Dyer, South Deering, Lake Station, Lynwood, Whiting, and New Chicago.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Cook, IL; Lake, IN
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov