McHenry County, Illinois
Tornadoes, hail, floods and severe storms recorded here between 1958 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
27
Tornado reports
196
Hail reports
48
Floods since 1996
854
All events
12
Deaths
$40.0M
Property damage
Tornado paths in McHenry County
The part of each tornado’s path NOAA recorded in this county, 27 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
A tornado touched down at 330 pm CST about 1.2 miles north of Poplar Grove in Boone County and ended at 348 pm about 3.2 miles north northeast of Harvard in McHenry County. The tornado crossed the Boone McHenry County line near Hunter Road, about 2.1 miles west northwest of Chemu…
Heavy rain fell across McHenry County and southeast Wisconsin between July 11th and July 13th which lead to major flooding along the Fox River. The river gage at the McHenry Lock & Dam crested at 7.60 feet on July 22nd, the second highest crest on record. Flood stage at the McHen…
Heat Heat
High Wind High Wind
A personal weather station measured a wind gust to 60 mph northwest of Marengo.
Tornado EF0 Tornado
A brief tornado with estimated peak winds of 75 mph touched down in a field north of Harmony Road, approximately a half mile east of Seeman Road. The tornado moved southeast causing damage to the roof of a barn and downing some tree limbs. A few metal panels from the roof of a ba…
Hail Hail
Hail Hail
Hail Hail
Multiple reports of quarter size hail were received from Algonquin.
Hail Hail
Quarter size hail was reported near Randall Road and Harnish Drive.
Thunderstorm Wind Thunderstorm Wind
Large tree limbs were broken near Fleming Road and Thompson Road.
Thunderstorm Wind Thunderstorm Wind
Wind gusts were estimated to 60 mph.
Flash Flood Flash Flood
Route 23 was closed between Coral Road and Grange Road due to flooding.
Flood Flood
Roadway flooding was reported near Route 120 and Route 47. A nearby personal weather station measured 3.39 inches of rain in two hours ending at 18:40 CST.
Flood Flood
Flooding was reported on Front Street between John Street and Oak Avenue.
Heavy Rain Heavy Rain
A personal weather station measured 3.31 inches of rain in two hours.
Thunderstorm Wind Thunderstorm Wind
A wind gust to 60 mph was reported near Franklinville Road and Route 176.
Thunderstorm Wind Thunderstorm Wind
Large tree limbs were blown down.
Thunderstorm Wind Thunderstorm Wind
A photo showed an uprooted tree near a house.
Thunderstorm Wind Thunderstorm Wind
Multiple large tree limbs were broken.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Flood Flood
Standing water was reported on IL-173 near Oak Grove Rd in Alden.
Flood Flood
Multiple reports were received of around six inches of standing water across IL-23 south of Harvard.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Broadcast media reported a tree down on a house on the 600 block of S Jefferson St in Woodstock.
Thunderstorm Wind Thunderstorm Wind
A report of siding damage, the partial loss of a tree, and other various objects blown around came out of Woodstock.
Thunderstorm Wind Thunderstorm Wind
A large tree was down and blocking IL-120 between Wonder Lake Dr and Thompson Rd. Seven power poles were also downed in the same area.
Thunderstorm Wind Thunderstorm Wind
A tree was downed along McCullom Lake Rd east of Wonder Lake.
Thunderstorm Wind Thunderstorm Wind
A tree was uprooted and a metal sign blown over west of Pistakee Highlands.
Winter Storm Winter Storm
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Winter Weather Winter Weather
Winter Weather Winter Weather
Cold/Wind Chill Cold/Wind Chill
Winter Storm Winter Storm
Winter Storm Winter Storm
Thunderstorm Wind Thunderstorm Wind
Power lines were blown down in a roadway.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 34 | 1 |
| 2025 | 49 | 0 |
| 2024 | 59 | 1 |
| 2023 | 30 | 3 |
| 2022 | 42 | 0 |
| 2021 | 59 | 1 |
| 2020 | 19 | 1 |
| 2019 | 23 | 0 |
| 2018 | 18 | 0 |
| 2017 | 21 | 1 |
| 2016 | 12 | 0 |
| 2015 | 25 | 3 |
| 2014 | 25 | 0 |
| 2013 | 15 | 0 |
| 2012 | 25 | 0 |
| 2011 | 46 | 0 |
| 2010 | 25 | 2 |
| 2009 | 21 | 1 |
| 2008 | 50 | 1 |
| 2007 | 33 | 0 |
| 2006 | 26 | 0 |
| 2005 | 22 | 0 |
| 2004 | 14 | 0 |
| 2003 | 11 | 0 |
| 2002 | 7 | 0 |
| 2001 | 14 | 0 |
| 2000 | 16 | 0 |
| 1999 | 7 | 0 |
| 1998 | 10 | 0 |
| 1997 | 11 | 0 |
| 1996 | 13 | 1 |
| 1995 | 2 | 0 |
| 1993 | 1 | 0 |
| 1992 | 2 | 0 |
| 1991 | 6 | 1 |
| 1990 | 4 | 0 |
| 1989 | 3 | 0 |
| 1988 | 2 | 0 |
| 1987 | 3 | 0 |
| 1986 | 4 | 1 |
| 1985 | 3 | 0 |
| 1984 | 3 | 0 |
| 1983 | 7 | 0 |
| 1981 | 1 | 0 |
| 1980 | 6 | 0 |
| 1978 | 1 | 1 |
| 1975 | 5 | 0 |
| 1974 | 1 | 0 |
| 1973 | 5 | 2 |
| 1972 | 1 | 0 |
| 1970 | 1 | 0 |
| 1968 | 4 | 0 |
| 1967 | 2 | 2 |
| 1965 | 1 | 1 |
| 1963 | 1 | 1 |
| 1960 | 1 | 0 |
| 1959 | 1 | 1 |
| 1958 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in McHenry County, measured to its path.
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