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Home Return to list Tornado Warning 0070 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-08-11 10:10:44
093
WFUS53 KLOT 111510
TORLOT
ILC031-043-089-093-197-111600-
/O.NEW.KLOT.TO.W.0070.260811T1510Z-260811T1600Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
1010 AM CDT Tue Aug 11 2026
The National Weather Service in Chicago has issued a
* Tornado Warning for...
Northern Kendall County in northeastern Illinois...
Northwestern Will County in northeastern Illinois...
Southern Kane County in northeastern Illinois...
Southern DuPage County in northeastern Illinois...
Southwestern Cook County in northeastern Illinois...
* Until 1100 AM CDT.
* At 1010 AM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located near
Yorkville, 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.
* Locations impacted include...
Aurora, Joliet, Naperville, Bolingbrook, Wheaton, Downers Grove,
Lombard, Romeoville, Plainfield, Woodridge, Oswego, Batavia,
Lockport, New Lenox, Homer Glen, Mokena, Yorkville, Hinsdale,
Lemont, Plano, Burr Ridge, Oak Brook, Westmont, Lisle, and Darien.
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 4144 8791 4165 8856 4182 8855 4184 8792
TIME...MOT...LOC 1510Z 285DEG 48KT 4170 8846
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:17:14
339
WWUS53 KLOT 111516 RRA
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1016 AM CDT Tue Aug 11 2026
ILC031-043-089-093-197-111600-
/O.CON.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Kendall IL-Will IL-Kane IL-DuPage IL-Cook IL-
1016 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHEASTERN KENDALL...NORTHWESTERN WILL...SOUTHEASTERN KANE...
SOUTHERN DUPAGE AND SOUTHWESTERN COOK COUNTIES...
At 1016 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Oswego, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Aurora, Joliet, Naperville, Bolingbrook, Wheaton, Downers Grove,
Romeoville, Plainfield, Woodridge, Oswego, Lockport, New Lenox, Homer
Glen, Mokena, Yorkville, Hinsdale, Lemont, Burr Ridge, Oak Brook,
Westmont, Lisle, Darien, Crest Hill, Montgomery, and North Aurora.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4144 8791 4163 8849 4180 8845 4184 8792
TIME...MOT...LOC 1516Z 285DEG 48KT 4168 8835
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:23:14
399
WWUS53 KLOT 111522 RRA
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1022 AM CDT Tue Aug 11 2026
ILC031-043-089-093-197-111600-
/O.CON.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Kendall IL-Will IL-Kane IL-DuPage IL-Cook IL-
1022 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHEASTERN KENDALL...NORTHWESTERN WILL...SOUTHEASTERN KANE...
SOUTHERN DUPAGE AND SOUTHWESTERN COOK COUNTIES...
At 1022 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Oswego, 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.
Locations impacted include...
Aurora, Joliet, Naperville, Bolingbrook, Downers Grove, Romeoville,
Plainfield, Woodridge, Oswego, Lockport, New Lenox, Homer Glen,
Mokena, Hinsdale, Lemont, Burr Ridge, Oak Brook, Westmont, Lisle,
Darien, Crest Hill, Montgomery, Shorewood, Warrenville, and
Willowbrook.
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 4144 8791 4160 8839 4178 8834 4184 8792
TIME...MOT...LOC 1522Z 284DEG 47KT 4165 8827
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Cancelled Issued At: 2026-08-11 10:31:15
671
WWUS53 KLOT 111530
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1030 AM CDT Tue Aug 11 2026
ILC089-093-111540-
/O.CAN.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Kendall IL-Kane IL-
1030 AM CDT Tue Aug 11 2026
...THE TORNADO WARNING FOR NORTHEASTERN KENDALL AND SOUTHEASTERN KANE
COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northeastern Illinois.
&&
LAT...LON 4178 8792 4149 8791 4150 8809 4156 8826
4179 8826
TIME...MOT...LOC 1530Z 285DEG 48KT 4162 8812
$$
ILC031-043-197-111600-
/O.CON.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Will IL-DuPage IL-Cook IL-
1030 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHWESTERN WILL...SOUTHERN DUPAGE AND SOUTHWESTERN COOK COUNTIES...
At 1030 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Romeoville, 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.
Locations impacted include...
Aurora, Joliet, Naperville, Bolingbrook, Downers Grove, Romeoville,
Plainfield, Woodridge, Lockport, New Lenox, Homer Glen, Mokena,
Lemont, Burr Ridge, Westmont, Lisle, Darien, Crest Hill, Shorewood,
Willowbrook, Willow Springs, Ingalls Park, Preston Heights, Fairmont,
and Rockdale.
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 4149 8791 4150 8809 4156 8826
4179 8826
TIME...MOT...LOC 1530Z 285DEG 48KT 4162 8812
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:31:15
671
WWUS53 KLOT 111530
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1030 AM CDT Tue Aug 11 2026
ILC089-093-111540-
/O.CAN.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Kendall IL-Kane IL-
1030 AM CDT Tue Aug 11 2026
...THE TORNADO WARNING FOR NORTHEASTERN KENDALL AND SOUTHEASTERN KANE
COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northeastern Illinois.
&&
LAT...LON 4178 8792 4149 8791 4150 8809 4156 8826
4179 8826
TIME...MOT...LOC 1530Z 285DEG 48KT 4162 8812
$$
ILC031-043-197-111600-
/O.CON.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Will IL-DuPage IL-Cook IL-
1030 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHWESTERN WILL...SOUTHERN DUPAGE AND SOUTHWESTERN COOK COUNTIES...
At 1030 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Romeoville, 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.
Locations impacted include...
Aurora, Joliet, Naperville, Bolingbrook, Downers Grove, Romeoville,
Plainfield, Woodridge, Lockport, New Lenox, Homer Glen, Mokena,
Lemont, Burr Ridge, Westmont, Lisle, Darien, Crest Hill, Shorewood,
Willowbrook, Willow Springs, Ingalls Park, Preston Heights, Fairmont,
and Rockdale.
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 4149 8791 4150 8809 4156 8826
4179 8826
TIME...MOT...LOC 1530Z 285DEG 48KT 4162 8812
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Continued Issued At: 2026-08-11 10:40:45
814
WWUS53 KLOT 111540 RRA
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
1040 AM CDT Tue Aug 11 2026
ILC031-043-197-111600-
/O.CON.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/
Will IL-DuPage IL-Cook IL-
1040 AM CDT Tue Aug 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHWESTERN WILL...SOUTHEASTERN DUPAGE AND SOUTHWESTERN COOK
COUNTIES...
At 1040 AM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over
Homer Glen, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Joliet, Naperville, Bolingbrook, Downers Grove, Romeoville,
Woodridge, Lockport, New Lenox, Homer Glen, Mokena, Lemont, Burr
Ridge, Westmont, Lisle, Darien, Crest Hill, Willowbrook, Willow
Springs, Ingalls Park, Preston Heights, and Fairmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4178 8792 4149 8791 4150 8809 4179 8811
TIME...MOT...LOC 1540Z 285DEG 48KT 4158 8794
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Borchardt
Action: Expired Issued At: 2026-08-11 10:50:45 169 WWUS53 KLOT 111550 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 1050 AM CDT Tue Aug 11 2026 ILC031-043-197-111600- /O.EXP.KLOT.TO.W.0070.000000T0000Z-260811T1600Z/ Will IL-DuPage IL-Cook IL- 1050 AM CDT Tue Aug 11 2026 ...THE TORNADO WARNING FOR NORTHWESTERN WILL...SOUTHEASTERN DUPAGE AND SOUTHWESTERN COOK COUNTIES WILL EXPIRE AT 1100 AM CDT... The tornado-producing portion of the line which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for northeastern Illinois. && LAT...LON 4178 8792 4149 8791 4150 8809 4179 8811 TIME...MOT...LOC 1550Z 285DEG 48KT 4155 8779 $$ Borchardt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||