Mchenry storm history
Storm events recorded in Mchenry, Illinois between 1950 and 2025.
816
Total events
26
Tornadoes
190
Hail
43
Floods
11
Deaths
$40.0M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
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…
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.
Thunderstorm Wind Thunderstorm Wind
Trees were blown down near Route 120.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A tree had fallen onto a house along Clay St in Woodstock.
Thunderstorm Wind Thunderstorm Wind
Woodstock PD reported multiple power lines downed around Woodstock.
Thunderstorm Wind Thunderstorm Wind
Numerous trees were reported down southeast of Crystal Lake, some onto cars and power lines.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A tree was down onto 3 cars along Webster St in Algonquin.
Thunderstorm Wind Thunderstorm Wind
Large branches were broken from the tops of trees near Main St and Cary Rd in Algonquin.
Thunderstorm Wind Thunderstorm Wind
Numerous trees and tree branches were down in Fox River Grove from Lions Park through the Foxmoor subdivision.
Thunderstorm Wind Thunderstorm Wind
Numerous photos were shared of large branches and at least one uprooted tree in and around Cary.
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Trees and power lines were blown down at the intersection of Algonquin Road and Lakewood Road.
Thunderstorm Wind Thunderstorm Wind
Multiple trees and power lines were blown down in and near Marengo.
Thunderstorm Wind Thunderstorm Wind
Photos shared on social media showed half of a tree split and blown down, a deck awning partially collapsed, and small tree limbs blown down in Lake in the Hills. A tree was also reported down onto a car.
Thunderstorm Wind Thunderstorm Wind
Trees, tree limbs, and power lines were blown down around Crystal Lake.
Thunderstorm Wind Thunderstorm Wind
A light pole was blown down at Teckler Blvd and Rt 14. Several 3 to 4 inch tree limbs were blown down and one 8 inch diameter tree was uprooted.
Excessive Heat Excessive Heat
Thunderstorm Wind Thunderstorm Wind
A tree branch fell on a house in the 600 block of Grant St in Harvard.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Power lines were downed in the 600 block of Dewey St in Harvard.
Thunderstorm Wind Thunderstorm Wind
Photos shared via social media showed the walls of a one story, 45x45 ft concrete structure had collapsed in Harvard.
Thunderstorm Wind Thunderstorm Wind
An ILDOT station southwest of Marengo measured a 61 mph gust.
Thunderstorm Wind Thunderstorm Wind
Downed power lines and tree branches were reported around Harvard.
Thunderstorm Wind Thunderstorm Wind
A 6 to 8 inch diameter tree branch was downed onto power lines near the intersection of Jackson and Douglas streets in Woodstock.
Thunderstorm Wind Thunderstorm Wind
Power lines were damaged along Harmony Rd south of Marengo.
Thunderstorm Wind Thunderstorm Wind
A 30 to 36 inch diameter tree was down and blocking Chapel Rd east of Algonquin.
Thunderstorm Wind Thunderstorm Wind
Tree damage was reported between McHenry and Volo.
Thunderstorm Wind Thunderstorm Wind
A DOT weather station measured a wind gust to 65 mph.
Thunderstorm Wind Thunderstorm Wind
A private weather station measured a wind gust to 58 mph.
Thunderstorm Wind Thunderstorm Wind
A tree was uprooted and fencing was blown over.
Thunderstorm Wind Thunderstorm Wind
A photo shared on social media showed a small tree that was snapped.
Thunderstorm Wind Thunderstorm Wind
A report was received of downed power lines spawning a fire near Cary.
Thunderstorm Wind Thunderstorm Wind
A photo was shared of a tree uprooted in Marengo.
Thunderstorm Wind Thunderstorm Wind
Large sections of siding were peeled off of an outbuilding near Union.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 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 | 7 | 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 |