Knox storm history
Storm events recorded in Knox, Tennessee between 1950 and 2025.
835
Total events
14
Tornadoes
167
Hail
100
Floods
15
Deaths
$60.6M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
The tornado started near Oak Ridge, moved through the Bull Run Steam Plant and went through the town of Claxton. Fifty homes were damaged and six mobile homes were destroyed. Two business were destroyed and another 10 were damaged including a weapons plant. Twelve electric transm…
Approximately 100 calls were logged by the Knox 911 dispatch for fallen trees during the Helene high wind event. This resulted in numerous trees blocking roads, downing powerlines, and causing thousands of power outages across the county. Several trees were reported down on Warri…
Rain, freezing rain, and snow fell with a half inch of snow measured in the Hardin Valley area of Knoxville. Extreme cold followed, with refreezing of roads each night of snowmelt causing additional road hazards.
Heavy, crippling snowfall fell across Knox County, with widespread reports of 8 inches to 12 inches of snow, especially across the west side of the county. A Knoxville based COOP observer measured 11.3 inches of snow, a CoCoRaHS observer in Powell recorded 8.2 inches, another jus…
Numerous roadways and structures were flooded. East Emory Road near Hallbrook Road near Halls Crossroads was closed. Flooding also reported on Northshore Drive near Ebenezer Road. South Peters Road was closed by flooding late in the evening, but a motorist still became submerged …
A 66 year old female was killed by a falling tree outside of her residence in West Knoxville. Numerous trees were downed in the area by the thunderstorm winds.
The tornado started on Yarnell Road, then reached peak intensity and width as it passed the Lovell Crossing apartment complex. Significant roof damage was noted to several of the homes and apartments in Lovell Cove and Crossing, with partial roof loss and uplift of roof decking c…
Broadcast media reported that heavy rain from a thunderstorm caused flooding countywide.
Kingston Pike and Gleason Road flooded and closed.
Thunderstorm Wind Thunderstorm Wind
A flag pole in the front yard of a home in Powell was bent all the way to the ground by severe thunderstorm wind gusts.
Thunderstorm Wind Thunderstorm Wind
A 36 inch diameter oak tree was felled by severe thunderstorm winds and sliced through the side of a home, requiring the fire department to extricate 1 person. No confirmed injuries. Fire department reported another tree falling on a separate house in Knoxville as well as several…
Thunderstorm Wind Thunderstorm Wind
Over 75 calls to the county 911 system occurred due to severe wind gusts causing multiple trees and powerlines to be damaged.
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A large diameter tree branch was sheared off a tree by powerful thunderstorm wind gusts.
Flood Flood
Report of flooding on Pellissippi Parkway near Solway.
Flood Flood
Report of water coming into a house near Hardin Valley Rd.
Flash Flood Flash Flood
Water over roadways near Ray Mears Blvd and Downtown West Blvd.
Flash Flood Flash Flood
Water over roadway near intersection of Dutch Valley and Old Broadway.
Thunderstorm Wind Thunderstorm Wind
Numerous trees blown down across Knox County by severe thunderstorm winds.
Thunderstorm Wind Thunderstorm Wind
Severe convective gust measured on an at home anemometer.
Thunderstorm Wind Thunderstorm Wind
A large tree was blown down by severe thunderstorm winds and is blocking several lanes on Westland Drive. The storm also blew down powerlines near this address.
Thunderstorm Wind Thunderstorm Wind
A large tree limb was felled by severe thunderstorm winds and landed on a semitruck and another vehicle near the intersection of W Martin Mill Pike and Brown Road.
Thunderstorm Wind Thunderstorm Wind
A few trees and powerlines were blown down by powerful thunderstorm wind gusts in West Knoxville.
Thunderstorm Wind Thunderstorm Wind
A large tree blocked a local road after being felled by severe thunderstorm wind gusts.
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Several trees in the Heiskell neighborhood of Knox County were blown down by severe thunderstorm wind gusts.
Winter Weather Winter Weather
Light snow fell across Knox County. CoCoRaHS reports of snowfall were: 2.6 inches in Knoxville, 1.5 inches in Knoxville, 1 inch in Seymour, 2 inches in Knoxville, 1.7 inches in Karns, and 2 inches in Farragut.
Heavy Snow Heavy Snow
Snow fell in a couple of bursts over Knox County, with wintry mix falling between roughly 1630 EST and 1900 EST based off reports from a trained spotter and the official airport station just south of Knox County. A light glaze of freezing rain was reported by a trained spotter du…
Strong Wind Strong Wind
For a several hour period, Knoxville McGhee Tyson ASOS recorded wind gusts above 40 mph. The peak wind gust was recorded at 51 mph at 12:49 PM. These winds, combined with saturated soils, led to multiple reports of tree damage across both Blount and Knox counties, with trees fall…
Winter Weather Winter Weather
Light snow fell across Knox County with the highest report from a NWS Employee of 1.2 inches of snow along Sharps Ridge. Other reports included 1.2 inches in downtown Knoxville, 1 inch in Halls, and 0.5 inches in Lake Forest.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 33 | 0 |
| 2024 | 40 | 0 |
| 2023 | 48 | 1 |
| 2022 | 35 | 0 |
| 2021 | 23 | 0 |
| 2020 | 23 | 0 |
| 2019 | 31 | 0 |
| 2018 | 17 | 0 |
| 2017 | 20 | 0 |
| 2016 | 32 | 0 |
| 2015 | 19 | 0 |
| 2014 | 27 | 0 |
| 2013 | 12 | 0 |
| 2012 | 24 | 2 |
| 2011 | 36 | 3 |
| 2010 | 22 | 0 |
| 2009 | 29 | 0 |
| 2008 | 19 | 0 |
| 2007 | 6 | 0 |
| 2006 | 37 | 0 |
| 2005 | 25 | 0 |
| 2004 | 24 | 0 |
| 2003 | 28 | 2 |
| 2002 | 22 | 0 |
| 2001 | 16 | 0 |
| 2000 | 22 | 1 |
| 1999 | 18 | 0 |
| 1998 | 41 | 0 |
| 1997 | 8 | 0 |
| 1996 | 16 | 0 |
| 1995 | 20 | 1 |
| 1994 | 2 | 0 |
| 1993 | 8 | 1 |
| 1992 | 5 | 0 |
| 1991 | 3 | 0 |
| 1990 | 3 | 0 |
| 1989 | 2 | 0 |
| 1987 | 3 | 0 |
| 1986 | 4 | 0 |
| 1985 | 6 | 0 |
| 1984 | 1 | 0 |
| 1982 | 2 | 0 |
| 1981 | 2 | 1 |
| 1977 | 4 | 0 |
| 1975 | 1 | 0 |
| 1974 | 4 | 1 |
| 1973 | 1 | 0 |
| 1970 | 2 | 0 |
| 1968 | 1 | 0 |
| 1965 | 2 | 1 |
| 1963 | 3 | 0 |
| 1961 | 1 | 0 |
| 1957 | 1 | 0 |
| 1955 | 1 | 0 |