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Home Tornado Warning 0018 Issued by the Chicago Forecast Office
Action: New Issued At: 2026-04-17 19:29:03
818
WFUS53 KLOT 180028
TORLOT
ILC111-180115-
/O.NEW.KLOT.TO.W.0018.260418T0028Z-260418T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
728 PM CDT Fri Apr 17 2026
The National Weather Service in Chicago has issued a
* Tornado Warning for...
Northern McHenry County in northeastern Illinois...
* Until 815 PM CDT.
* At 728 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Capron, or near Poplar Grove, moving east at 45
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 dangerous storm will be near...
Harvard around 735 PM CDT.
Hebron around 745 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Twin Lakes, Genoa City, Richmond and Spring Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4237 8820 4234 8871 4249 8871 4250 8821
TIME...MOT...LOC 0028Z 258DEG 41KT 4244 8880
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Yack
Action: Continued Issued At: 2026-04-17 19:38:33
103
WWUS53 KLOT 180038
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
738 PM CDT Fri Apr 17 2026
ILC111-180115-
/O.CON.KLOT.TO.W.0018.000000T0000Z-260418T0115Z/
McHenry IL-
738 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR NORTHERN
MCHENRY COUNTY...
At 737 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Harvard, moving east at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation. Report of funnel cloud along IL-
173 in McHenry County.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Hebron around 745 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Wonder Lake, Richmond, Fox Lake, Johnsburg, Twin Lakes, Spring Grove,
Pistakee Highlands and Genoa City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4237 8820 4234 8871 4249 8871 4250 8821
TIME...MOT...LOC 0037Z 266DEG 38KT 4242 8865
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Yack
Action: Continued Issued At: 2026-04-17 19:51:34
566
WWUS53 KLOT 180051
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
751 PM CDT Fri Apr 17 2026
ILC111-180115-
/O.CON.KLOT.TO.W.0018.000000T0000Z-260418T0115Z/
McHenry IL-
751 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR NORTHERN
MCHENRY COUNTY...
At 751 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Harvard, moving east at 45 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 dangerous storm will be near...
Wonder Lake and Hebron around 755 PM CDT.
Other locations in the path of this tornadic thunderstorm include
McHenry, Johnsburg, Spring Grove, Richmond, Fox Lake, Pistakee
Highlands and McCullom Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4235 8862 4249 8866 4250 8821 4237 8820
TIME...MOT...LOC 0051Z 264DEG 38KT 4241 8851
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Yack
Action: Continued Issued At: 2026-04-17 20:08:04
040
WWUS53 KLOT 180107
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
807 PM CDT Fri Apr 17 2026
ILC111-180115-
/O.CON.KLOT.TO.W.0018.000000T0000Z-260418T0115Z/
McHenry IL-
807 PM CDT Fri Apr 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN MCHENRY COUNTY...
At 807 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Spring Grove, or near Fox Lake, moving east at 45
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Fox Lake, Johnsburg, Twin Lakes, Spring Grove, and Pistakee
Highlands around 810 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4236 8835 4250 8841 4250 8821 4237 8820
TIME...MOT...LOC 0107Z 270DEG 38KT 4244 8828
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Kluber
Action: Expired Issued At: 2026-04-17 20:14:20 392 WWUS53 KLOT 180113 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 813 PM CDT Fri Apr 17 2026 ILC111-180122- /O.EXP.KLOT.TO.W.0018.000000T0000Z-260418T0115Z/ McHenry IL- 813 PM CDT Fri Apr 17 2026 ...THE TORNADO WARNING FOR NORTHEASTERN MCHENRY COUNTY WILL EXPIRE AT 815 PM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Tornado Watch remains in effect until 1000 PM CDT for northeastern Illinois. Remember, a Severe Thunderstorm Warning still remains in effect for until 830 PM CDT. && LAT...LON 4236 8835 4250 8841 4250 8821 4237 8820 TIME...MOT...LOC 0112Z 258DEG 41KT 4245 8820 $$ Kluber |
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