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Home Return to list Tornado Warning 0072 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-08-11 10:29:45
652
WFUS53 KLOT 111529
TORLOT
ILC031-043-111615-
/O.NEW.KLOT.TO.W.0072.260811T1529Z-260811T1615Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
1029 AM CDT Tue Aug 11 2026
The National Weather Service in Chicago has issued a
* Tornado Warning for...
DuPage County in northeastern Illinois...
East central Cook County in northeastern Illinois...
* Until 1115 AM CDT.
* At 1029 AM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located over
Warrenville, or near Wheaton, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* These dangerous storms will be near...
Wheaton, Downers Grove, Elmhurst, Lombard, Carol Stream, Glen
Ellyn, Hinsdale, Oak Brook, Westmont, and Lisle around 1035 AM
CDT.
Melrose Park, Maywood, Brookfield, Westchester, La Grange,
Bellwood, La Grange Park, Western Springs, Northlake, and Hillside
around 1040 AM CDT.
Chicago, Cicero, Berwyn, Oak Park, Austin, Summit, Forest Park,
River Forest, Lyons, and Riverside around 1045 AM CDT.
Other locations in the path of this tornadic thunderstorm include
West Town, South Lawndale, Bridgeport, Humboldt Park, Near West Side,
Brighton Park, New City, East Garfield Park, Chicago Loop, Lincoln
Park, Navy Pier, Northerly Island, Near North Side and Hyde Park.
OEMC zones...TORNADO WARNING.
1...2...3...4...5...6...7...8...9...and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4179 8825 4195 8824 4199 8765 4197 8764
4196 8763 4196 8764 4191 8762 4190 8762
4189 8761 4188 8762 4187 8761 4185 8761
4178 8757 4178 8756 4177 8756 4176 8754
TIME...MOT...LOC 1529Z 265DEG 49KT 4183 8816
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:38:45
783
WWUS53 KLOT 111538
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1038 AM CDT Tue Aug 11 2026
ILC031-043-111615-
/O.CON.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
DuPage IL-Cook IL-
1038 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR
NORTHEASTERN DUPAGE AND EAST CENTRAL COOK COUNTIES...
At 1037 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Oak Brook, moving east at 55 mph.
HAZARD...Tornadoes. One tornado may be developing over Downers Grove
with another over Glendale Heights.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Chicago, Cicero, Berwyn, Oak Park, Austin, Melrose Park, Maywood,
Brookfield, Westchester, and La Grange around 1045 AM CDT.
Other locations in the path of this tornadic thunderstorm include
West Town, South Lawndale, Bridgeport, Logan Square, Humboldt Park,
Near West Side, Brighton Park, New City, East Garfield Park, Chicago
Loop, Lincoln Park, Navy Pier, Northerly Island and Near North Side.
OEMC zones...TORNADO WARNING.
1...2...3...4...5...6...7...8...9...and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4178 8811 4196 8812 4199 8765 4197 8764
4196 8763 4196 8764 4191 8762 4190 8762
4189 8761 4188 8762 4187 8761 4185 8761
4178 8757 4178 8756 4177 8756 4176 8754
TIME...MOT...LOC 1537Z 265DEG 49KT 4184 8800
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Cancelled Issued At: 2026-08-11 10:46:45
120
WWUS53 KLOT 111546
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1046 AM CDT Tue Aug 11 2026
ILC043-111556-
/O.CAN.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
DuPage IL-
1046 AM CDT Tue Aug 11 2026
...THE TORNADO WARNING FOR NORTHEASTERN DUPAGE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northeastern Illinois.
&&
LAT...LON 4178 8792 4197 8792 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1546Z 265DEG 49KT 4185 8783
$$
ILC031-111615-
/O.CON.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
Cook IL-
1046 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR EAST
CENTRAL COOK COUNTY...
At 1046 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
North Riverside, or over Brookfield, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Chicago, Cicero, Berwyn, Oak Park, West Town, Austin, South
Lawndale, Bridgeport, Summit, and Logan Square around 1050 AM CDT.
Chicago Loop, Lincoln Park, Navy Pier, Northerly Island, and Near
North Side around 1055 AM CDT.
OEMC zones...TORNADO WARNING.
1...2...3...4...5...6...7...8...9...and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4178 8792 4197 8792 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1546Z 265DEG 49KT 4185 8783
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:46:45
120
WWUS53 KLOT 111546
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1046 AM CDT Tue Aug 11 2026
ILC043-111556-
/O.CAN.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
DuPage IL-
1046 AM CDT Tue Aug 11 2026
...THE TORNADO WARNING FOR NORTHEASTERN DUPAGE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northeastern Illinois.
&&
LAT...LON 4178 8792 4197 8792 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1546Z 265DEG 49KT 4185 8783
$$
ILC031-111615-
/O.CON.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
Cook IL-
1046 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR EAST
CENTRAL COOK COUNTY...
At 1046 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
North Riverside, or over Brookfield, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Chicago, Cicero, Berwyn, Oak Park, West Town, Austin, South
Lawndale, Bridgeport, Summit, and Logan Square around 1050 AM CDT.
Chicago Loop, Lincoln Park, Navy Pier, Northerly Island, and Near
North Side around 1055 AM CDT.
OEMC zones...TORNADO WARNING.
1...2...3...4...5...6...7...8...9...and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4178 8792 4197 8792 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1546Z 265DEG 49KT 4185 8783
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:57:45
273
WWUS53 KLOT 111557 RRA
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1057 AM CDT Tue Aug 11 2026
ILC031-111615-
/O.CON.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
Cook IL-
1057 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR EAST
CENTRAL COOK COUNTY...
At 1057 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Northerly Island, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
east central Cook County, including the following locations... West
Lawn, West Englewood, North Center, Greater Grand Crossing, West
Garfield Park, Oakland, West Elsdon, Avondale, North Lawndale, and
Lower West Side.
OEMC zones...TORNADO WARNING.
1...2...3...4...5...6...7...8...9...and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4177 8777 4198 8780 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1557Z 265DEG 49KT 4186 8762
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Expired Issued At: 2026-08-11 11:06:15
571
WWUS53 KLOT 111605
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1105 AM CDT Tue Aug 11 2026
ILC031-111615-
/O.EXP.KLOT.TO.W.0072.000000T0000Z-260811T1615Z/
Cook IL-
1105 AM CDT Tue Aug 11 2026
...THE TORNADO WARNING FOR EAST CENTRAL COOK COUNTY WILL EXPIRE AT
1115 AM CDT...
The portion of the storm which prompted the Tornado Warning has
moved out of the area. Therefore, the warning has been cancelled.
However, a Severe Thunderstorm Warning remains in effect until 1115
AM.
&&
LAT...LON 4177 8777 4198 8780 4199 8765 4196 8763
4196 8764 4194 8764 4194 8763 4191 8762
4190 8762 4189 8761 4188 8762 4187 8761
4185 8761 4178 8757 4178 8756 4176 8756
TIME...MOT...LOC 1605Z 265DEG 49KT 4187 8752
$$
Borchardt
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