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Bon Homme County, South Dakota
Tornadoes, hail, floods and severe storms recorded here between 1954 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
26
Tornado reports
229
Hail reports
107
Floods since 1996
812
All events
0
Deaths
$7.6M
Property damage
Tornado paths in Bon Homme County
The part of each tornado’s path NOAA recorded in this county, 26 in all. Zoom in and the paths widen to their surveyed width.
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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.
Tornado F3 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Rainfall amounts across Bon Homme County from June 20-22 ranged from 2 to 3 inches with an estimated 5 to 6 inches across the far northern portion of the county. Overland flooding ensued with additional major flooding along the James River. One home experienced a partial basement…
Flooding resulted in extensive damage to public infrastructure including numerous county and township roads, culverts, and some bridges.
Heat Heat
Dangerous heat index readings reached a brief afternoon peak as high as 104 degrees near Tyndall.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by the South Dakota Mesonet site 3 miles east of Avon.
Drought Drought
Extreme (D3) drought conditions persisted through the month.
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts removed the roof from a shed.
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by South Dakota Mesonet station AVMS2.
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
An extended period of thunderstorm wind gusts severely damaged several farm outbuildings and overturned a 5th wheel camper.
Thunderstorm Wind Thunderstorm Wind
Small trees were downed by thunderstorm wind gusts.
Hail Hail
Drought Drought
Extreme (D3) drought conditions persisted through the month.
Drought Drought
Extreme (D3) drought conditions persisted through the month.
Blizzard Blizzard
Northerly winds gusted as high as 54 mph 5 miles east-southeast of Tyndall and 50 mph near Avon. During and after a period of snowfall which totaled 2.2 inches at Tyndall and 2.0 inches 8 miles west-southwest of Springfield, visibility was reduced to one-quarter mile or less at t…
High Wind High Wind
Sustained winds were less than 40 mph, but gusts exceeded 58 mph at multiple locations. Gusts were as high as 68 mph at at a South Dakota Road Weather Information System site near Tyndall.
Drought Drought
Severe (D2) drought conditions intensified to extreme (D3) at mid month.
Drought Drought
Severe (D2) drought was introduced into southern portions of Bon Homme County.
High Wind High Wind
Northwest winds were sustained from 40 to 42 mph with gusts as high as 65 mph 4 miles east-southeast of Tyndall and 60 mph near Scotland.
Strong Wind Strong Wind
Sustained winds reached 30 to 36 mph at times with a peak gust of 55 mph at a South Dakota Road Weather Information System site 5 miles east-southeast of Tyndall and 45 mph at a personal weather station 2 miles south of Scotland.
High Wind High Wind
Northwest winds were sustained between 40 and 45 mph at times, with gusts as high as 70 mph 5 miles east-southeast of Tyndall and 59 mph at a South Dakota Mesonet site 3 miles east of Avon.
Winter Weather Winter Weather
Snowfall totaled 3.0 inches at Tyndall and 8 miles west-northwest of Springfield.
Cold/Wind Chill Cold/Wind Chill
Wind chills reached as low as -27 degrees near Scotland and -26 degrees 5 miles east-southeast of Tyndall.
High Wind High Wind
Synoptic northwest winds were sustained from 40 to 42 mph with a peak gust of 58 mph at a South Dakota Mesonet site 3 miles east of Avon and 58 mph at a personal weather station 2 miles south of Scotland.
Winter Weather Winter Weather
Snowfall totaled 2.8 inches at Tyndall.
Winter Weather Winter Weather
A long-duration snowfall totaled 4.6 inches at Tyndall.
High Wind High Wind
Sustained winds reached around 40 mph at times at a South Dakota Road Weather Information System site 5 miles east-southeast of Tyndall.
Excessive Heat Excessive Heat
Dangerous heat index values peaked as high as 105 degrees 5 miles east-southeast of Tyndall on August 16.
High Wind High Wind
Dissipating showers led to the development of locally enhanced non-thunderstorm wind gusts up to 61 mph at a site 5 miles east-southeast of Tyndall.
Excessive Heat Excessive Heat
Dangerous heat index values peaked as high as 109 degrees 4 miles south of Scotland and 101 degrees 5 miles east-southeast of Tyndall.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Excessive Heat Excessive Heat
Dangerous heat index readings reached an afternoon peak as high as 109 degrees near Tyndall on July 27.
Excessive Heat Excessive Heat
Dangerous heat index readings reached daily afternoon peaks as high as 109 degrees 6 miles south of Scotland on July 22.
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Several tree limbs were downed by thunderstorm winds.
Excessive Heat Excessive Heat
Daily afternoon and evening heat indices ranged from 105 to 117 degrees with a maximum heat index of 117 degrees a personal weather station near Scotland on June 21, 107 degrees at the Road Weather Information System site near Tyndall on June 21, and 107 degrees at the South Dako…
Hail Hail
Although some hail was as big as a golf ball, most stones were dime to quarter size.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust measured by a personal weather station.
Drought Drought
Severe (D2) drought conditions improved to moderate (D1) by late month.
Hail Hail
Hail was up to quarter to half-dollar size at times.
Drought Drought
Severe (D2) drought conditions persisted through the month.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 20 | 0 |
| 2025 | 34 | 0 |
| 2024 | 28 | 0 |
| 2023 | 50 | 1 |
| 2022 | 45 | 1 |
| 2021 | 21 | 0 |
| 2020 | 32 | 0 |
| 2019 | 59 | 1 |
| 2018 | 42 | 0 |
| 2017 | 9 | 0 |
| 2016 | 15 | 0 |
| 2015 | 18 | 0 |
| 2014 | 11 | 0 |
| 2013 | 13 | 0 |
| 2012 | 17 | 1 |
| 2011 | 26 | 0 |
| 2010 | 23 | 0 |
| 2009 | 21 | 1 |
| 2008 | 28 | 1 |
| 2007 | 29 | 2 |
| 2006 | 21 | 0 |
| 2005 | 20 | 0 |
| 2004 | 27 | 0 |
| 2003 | 21 | 0 |
| 2002 | 29 | 0 |
| 2001 | 9 | 0 |
| 2000 | 19 | 0 |
| 1999 | 11 | 1 |
| 1998 | 6 | 0 |
| 1997 | 12 | 0 |
| 1996 | 16 | 0 |
| 1995 | 1 | 0 |
| 1994 | 2 | 0 |
| 1993 | 5 | 0 |
| 1992 | 3 | 0 |
| 1991 | 2 | 0 |
| 1989 | 2 | 0 |
| 1987 | 10 | 0 |
| 1986 | 4 | 0 |
| 1985 | 6 | 3 |
| 1984 | 1 | 1 |
| 1982 | 1 | 0 |
| 1981 | 3 | 1 |
| 1978 | 3 | 2 |
| 1975 | 3 | 2 |
| 1974 | 1 | 0 |
| 1973 | 2 | 0 |
| 1972 | 2 | 1 |
| 1970 | 4 | 1 |
| 1969 | 1 | 0 |
| 1968 | 3 | 0 |
| 1967 | 1 | 0 |
| 1966 | 3 | 0 |
| 1965 | 5 | 2 |
| 1964 | 2 | 0 |
| 1962 | 1 | 1 |
| 1961 | 2 | 1 |
| 1960 | 1 | 0 |
| 1958 | 2 | 0 |
| 1957 | 2 | 0 |
| 1956 | 1 | 1 |
| 1954 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Bon Homme County, measured to its path.
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