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Gregory County, South Dakota
Tornadoes, hail, floods and severe storms recorded here between 1952 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
27
Tornado reports
247
Hail reports
15
Floods since 1996
751
All events
0
Deaths
$18.1M
Property damage
Tornado paths in Gregory 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.
Tornado F3 Tornado
Tornado F3 Tornado
A tornado developed and touched down in the heart of town near Washington and 7th streets, causing damage to several trees at the touchdown point. Shortly after, the tornado severely damaged several structures while tracking south, including leveling several buildings at the lumb…
Flooding resulted in extensive damage to public infrastructure including numerous county and township roads, culverts, and some bridges.
Large hail, up to two inches in diameter, fell in a swath a few miles wide from northwestern to south central Gregory County. The hail broke numerous windows, severely damaged siding and roofs of homes and other buildings, and severely damaged vehicles, while covering the ground …
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by the South Dakota Road Weather Information System site near Ft. Randall Dam.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by the South Dakota Road Weather Information System site near Dallas.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by the South Dakota Road Weather Information System site at Fort Randall Dam.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by a personal weather station.
Drought Drought
Extreme (D3) drought conditions persisted through the month.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gust was measured by the South Dakota Road Weather Information System site at Fort Randall Dam.
High Wind High Wind
Sustained winds were between 40 and 49 mph at times, with gusts as high as 63 mph at a South Dakota Road Weather Information System site near Dixon.
Drought Drought
Extreme (D3) drought conditions persisted through the month.
Drought Drought
Severe (D2) drought conditions worsened to Extreme (D3) conditions late month.
High Wind High Wind
Sustained winds were between 40 and 45 mph at times, with gusts as high as 58 mph at South Dakota Road Weather Information System sites near Dixon and Dallas.
Drought Drought
Moderate (D1) drought conditions worsened to severe (D2) mid month.
Blizzard Blizzard
Northerly winds gusted as high as 59 mph at Fort Randall Dam, 50 mph at Dallas, and 48 mph 2 miles east of Dixon. During and after a period of snowfall which totaled 4.5 inches 11 miles south-southeast of Burke and 8 miles north of Gregory, visibility was reduced to one-quarter m…
High Wind High Wind
Winds gusted as high as 59 mph at the South Dakota Road Weather Information System site at Fort Randall Dam.
High Wind High Wind
Sustained winds were between 40 and 57 mph at times, with gusts as high as 72 mph at a South Dakota Road Weather Information System site at Ft Randall Dam.
High Wind High Wind
Sustained winds were briefly between 40 and 51 mph, with gusts as high as 61 mph at a South Dakota Road Weather Information System site at Ft Randall Dam.
High Wind High Wind
Sustained winds were between 40 and 54 mph at times, with gusts as high as 65 mph at a South Dakota Road Weather Information System site at Ft Randall Dam.
High Wind High Wind
Northwest winds were sustained from 40 to 54 mph with gusts as high as 68 mph 2 miles east of Dixon, 66 mph at Dallas, and 65 mph at a South Dakota Mesonet site 16 miles north of Gregory.
High Wind High Wind
Sustained winds reached 40 to 48 mph at times with a peak gust of 71 mph at a South Dakota Road Weather Information System site at Fort Randall Dam, 64 mph 2 miles east of Dixon, and 59 mph at a South Dakota Mesonet site 16 miles north of Gregory.
High Wind High Wind
Sustained northwest winds reached 40 to 46 mph with a peak gust of 66 mph at Fort Randall Dam.
High Wind High Wind
Northwest winds were sustained between 40 and 57 mph at times, with gusts as high as 82 mph at Fort Randall Dam, 72 mph 2 miles east of Dixon and at Dallas, and 66 mph at a South Dakota Mesonet site 16 miles north of Gregory.
Winter Weather Winter Weather
Snowfall totaled 4.0 inches 9 miles north of Gregory and 2.0 inches 9 miles south of Dallas and at Gregory.
High Wind High Wind
Synoptic northwest winds were occasionally sustained from 40 to 43 mph with gusts as high as 70 mph at a South Dakota Road Weather Information System site at Fort Randall Dam, 61 mph 1 mile east-southeast of Dallas, and 58 mph 2 miles east of Dixon.
Winter Weather Winter Weather
A long-duration snowfall totaled 4.9 inches at Gregory, 4.2 inches 11 miles south-southeast of Burke, and 4.0 inches 9 miles south of Dallas and 4 miles south-southwest of Pickstown.
High Wind High Wind
Sustained winds reached 40 to 47 mph, with gusts measured on South Dakota Road Weather Information System sites as high as 75 mph at Fort Randall Dam, 64 mph 2 miles east of Dixon, and 64 mph at Dallas. The South Dakota Mesonet site 16 miles north of Gregory measured a gust to 60…
High Wind High Wind
Winds were sustained from 30 to 39 mph for several hours, with a gust measured as high as 61 mph at 1535CST at the South Dakota Road Weather Information System site at Fort Randall Dam.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by South Dakota Mesonet station GRMS2 Gregory 16N.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a Road Weather Information System sensor 2 miles east of Dixon.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by South Dakota Mesonet station GRMS2 Gregory 16N.
Excessive Heat Excessive Heat
Dangerous heat index values peaked as high as 107 degrees 2 miles north of Bonesteel on August 15, and 107 degrees at Fairfax and 105 degrees at Fort Randall Dam on August 16.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds, which gusted as high as 60 mph, were measured by South Dakota Mesonet station GGMS2 Gregory 7SSW.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts as high as 62 mph were measured by a personal weather station.
Heat Heat
Heat index values peaked as high as 104 degrees 2 miles north of Bonesteel and 100 degrees at Fairfax and Forth Randall Dam.
Hail Hail
Tornado EF1 Tornado
A storm chaser documented the initial touchdown of a tornado a little over a mile to the northwest of Dixon, SD just north of 276th Street in an open field. The tornado traveled to the east-southeast for around 2 miles before it impacted the north side of a farmstead where it dam…
Tornado EF0 Tornado
A storm chaser documented the initial touchdown of a tornado less than one mile northwest of Lucas, SD a bit southeast of the intersection of 283rd Street and 347th Avenue. The tornado then tracked southeast for around one mile, narrowly missing the town of Lucas but uprooting th…
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 27 | 0 |
| 2025 | 48 | 3 |
| 2024 | 41 | 0 |
| 2023 | 27 | 0 |
| 2022 | 41 | 0 |
| 2021 | 28 | 0 |
| 2020 | 26 | 0 |
| 2019 | 42 | 2 |
| 2018 | 27 | 0 |
| 2017 | 13 | 0 |
| 2016 | 15 | 0 |
| 2015 | 15 | 0 |
| 2014 | 6 | 0 |
| 2013 | 16 | 0 |
| 2012 | 19 | 0 |
| 2011 | 14 | 0 |
| 2010 | 26 | 2 |
| 2009 | 28 | 0 |
| 2008 | 45 | 0 |
| 2007 | 25 | 2 |
| 2006 | 11 | 0 |
| 2005 | 23 | 0 |
| 2004 | 12 | 0 |
| 2003 | 23 | 2 |
| 2002 | 19 | 1 |
| 2001 | 7 | 0 |
| 2000 | 16 | 0 |
| 1999 | 28 | 1 |
| 1998 | 8 | 0 |
| 1997 | 13 | 0 |
| 1996 | 11 | 0 |
| 1994 | 3 | 0 |
| 1993 | 1 | 0 |
| 1992 | 3 | 0 |
| 1991 | 4 | 0 |
| 1990 | 2 | 0 |
| 1988 | 2 | 0 |
| 1987 | 4 | 0 |
| 1986 | 1 | 0 |
| 1985 | 6 | 3 |
| 1980 | 1 | 0 |
| 1979 | 1 | 0 |
| 1978 | 1 | 0 |
| 1977 | 1 | 0 |
| 1975 | 1 | 0 |
| 1968 | 1 | 1 |
| 1967 | 2 | 2 |
| 1966 | 2 | 1 |
| 1965 | 2 | 1 |
| 1962 | 5 | 3 |
| 1961 | 2 | 0 |
| 1959 | 2 | 1 |
| 1957 | 2 | 0 |
| 1954 | 1 | 1 |
| 1952 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Gregory County, measured to its path.
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