Headline:
Severe Thunderstorm Warning issued August 11 at 10:56AM CDT until August 11 at 11:15AM CDT by NWS Chicago IL
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
August 11, 2026 - 8:56am
Expires:
August 11, 2026 - 9:15am
Description:
At 1056 AM CDT, severe thunderstorms were located along a line
extending from Riverdale to near Beecher to Grant Park, moving
southeast at 75 mph.
THESE ARE DESTRUCTIVE STORMS producing measured winds gusts of 90 to
over 100 mph.
HAZARD...100 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...You are in a life-threatening situation. Flying debris may
be deadly to those caught without shelter. Mobile homes
will be destroyed. Expect considerable damage to homes and
businesses. Expect extensive tree damage and power outages.
Locations impacted include...
Chicago, Hammond, Orland Park, Tinley Park, Oak Lawn, Calumet City,
Chicago Heights, Roseland, South Shore, Chicago Lawn, Englewood,
Burbank, Lansing, Oak Forest, Harvey, New Lenox, Blue Island,
Munster, Dolton, Park Forest, Homewood, Alsip, Matteson, Mokena, and
Frankfort.
Instruction:
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.
This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.
Area Description:
Cook, IL; Will, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov