Boone storm history
Storm events recorded in Boone, Illinois between 1950 and 2025.
394
Total events
24
Tornadoes
58
Hail
34
Floods
26
Deaths
$8.3M
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 3 miles northeast of Capron. The …
This tornado crossed into Boone County south of Cherry Valley from Winnebago County. The tornado, which originated in Ogle County, traversed northeastward doing minor damage to farms. As it moved through the town of Belvidere, the storm produced multiple instances of damage to bu…
A tornado which touched down in eastern Winnebago County, crossed into western Boone County and moved across largely open rural fields towards the town of Caledonia. Significant damage occurred to at least six buildings in Caledonia, with approximately 20 additional buildings sus…
Winter Weather Winter Weather
Cold/Wind Chill Cold/Wind Chill
Winter Storm Winter Storm
Winter Storm Winter Storm
Heavy Rain Heavy Rain
A private weather station recorded 5.75 of rain through 7 PM CST, most of which would have fallen since 5:30 PM CST.
Thunderstorm Wind Thunderstorm Wind
Trees 3 to 4 feet in diameter were snapped along N Appleton Rd between Douglas and Maryland courts in Belvidere.
Thunderstorm Wind Thunderstorm Wind
Seven trees were downed on the corner of 2nd St and Whitney Blvd, the largest being about 4 feet in diameter. Power lines were also reported down.
Thunderstorm Wind Thunderstorm Wind
Boone County EM reported numerous trees down on the southeast side of Belvidere.
Thunderstorm Wind Thunderstorm Wind
Two trees two feet in diameter were downed and branches 6 to 12 inches in diameter were broken near Gardner and Jackson streets in Belvidere.
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A tree was blown down on Mill Street Road and Garden Prairie Road.
Excessive Heat Excessive Heat
Heavy Rain Heavy Rain
A private weather station recorded 3.91 of storm total rain through 6 PM. 1.12 were recorded in a 30-minute period.
Thunderstorm Wind Thunderstorm Wind
Extensive tree damage was reported along Distillery Rd outside of Belvidere. One tree trunk was snapped a few feet off the ground and multiple large tree limbs were downed, some of them onto power lines.
Tornado EF0 Tornado
A brief EF0 tornado with peak estimated winds of 85 mph touched down northwest of Belvidere. Photos shared by the Boone County EMA show that a concentrated area of tree damage occurred at and across the street from a property along Distillery Road south of US Rt. 20. Multiple tre…
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Cold/Wind Chill Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Winter Weather Winter Weather
Winter Weather Winter Weather
Drought Drought
Thunderstorm Wind Thunderstorm Wind
Several large tree limbs were blown down and one large tree was uprooted in and near the Henninger Heights subdivision northeast of Belvidere.
Flash Flood Flash Flood
A 50 foot wide stream of water about 3 to 4 inches deep was rushing across Squaw Prairie Road between Townhall Road and Beloit Road. Piscasaw Creek overtopped the Squaw Prairie Road Bridge. Photos and videos showed flooded yards, driveways and roads in the adjacent Wilcox subdivi…
Flood Flood
Two to three inches of water caused lane blockage on Logan Avenue from East Avenue to Jamestown Avenue.
Flood Flood
Street flooding was reported in Belvidere.
Heavy Rain Heavy Rain
A 24 hour rainfall of 3.8 was recorded in Belvidere.
Tornado EF0 Tornado
A weak tornado touched down just west of Beaverton Road, about halfway between Hunter Road and Blaine Road. The tornado moved northeast producing sporadic tree damage in Boone County and crossed into McHenry County just north of Engelhardt Road.
Winter Storm Winter Storm
Winter Weather Winter Weather
Cold/Wind Chill Cold/Wind Chill
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Winter Weather Winter Weather
Winter Storm Winter Storm
Winter Weather Winter Weather
Drought Drought
Excessive Heat Excessive Heat
Thunderstorm Wind Thunderstorm Wind
A photo shared on social media showed half of a small tree snapped.
Thunderstorm Wind Thunderstorm Wind
Several trees were blown down along the Long Prairie Trail.
Thunderstorm Wind Thunderstorm Wind
This gust was measured at the Poplar Grove Airport.
Thunderstorm Wind Thunderstorm Wind
Broken power poles and tree limbs up to 3 inches in diameter were reported broken in Belvidere via mPING.
Thunderstorm Wind Thunderstorm Wind
Several trees were reported down as well as siding that had been damaged on a home in the Candlewick Lake Subdivision north of Timberlane. Wind speed was estimated using radar.
Thunderstorm Wind Thunderstorm Wind
A 60 mph gust was measured at the Poplar Grove Airport.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 23 | 1 |
| 2024 | 14 | 1 |
| 2023 | 21 | 3 |
| 2022 | 29 | 2 |
| 2021 | 25 | 0 |
| 2020 | 12 | 1 |
| 2019 | 12 | 0 |
| 2018 | 8 | 0 |
| 2017 | 12 | 2 |
| 2016 | 5 | 0 |
| 2015 | 12 | 5 |
| 2014 | 7 | 0 |
| 2013 | 8 | 0 |
| 2012 | 9 | 0 |
| 2011 | 11 | 0 |
| 2010 | 10 | 1 |
| 2009 | 11 | 1 |
| 2008 | 15 | 2 |
| 2007 | 12 | 0 |
| 2006 | 17 | 0 |
| 2005 | 14 | 0 |
| 2004 | 6 | 0 |
| 2003 | 8 | 0 |
| 2002 | 9 | 0 |
| 2001 | 7 | 0 |
| 2000 | 7 | 0 |
| 1999 | 6 | 0 |
| 1998 | 12 | 0 |
| 1997 | 2 | 0 |
| 1996 | 9 | 0 |
| 1995 | 3 | 0 |
| 1993 | 1 | 0 |
| 1992 | 1 | 0 |
| 1991 | 4 | 1 |
| 1990 | 3 | 0 |
| 1989 | 3 | 0 |
| 1988 | 1 | 0 |
| 1987 | 5 | 0 |
| 1986 | 1 | 1 |
| 1985 | 1 | 0 |
| 1984 | 4 | 1 |
| 1983 | 1 | 0 |
| 1982 | 1 | 0 |
| 1980 | 2 | 0 |
| 1978 | 1 | 0 |
| 1977 | 1 | 0 |
| 1976 | 1 | 0 |
| 1974 | 1 | 0 |
| 1973 | 1 | 0 |
| 1972 | 2 | 0 |
| 1967 | 1 | 1 |
| 1963 | 1 | 0 |
| 1959 | 1 | 1 |