Storm History: Mahaska County, Iowa
Every storm the National Weather Service has filed in Mahaska County, Iowa: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.
The record
- Events
- 622
- Deaths
- 2
- Injuries
- 37
- Damage
- $232 million
- Episodes
- 469
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Every year
By kind of event
Counted under the kind that heads each episode.
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Tornado | 140 | 1 | 36 | $30 million |
| Hail | 117 | 0 | 0 | $1.6 million |
| Flood | 108 | 0 | 0 | $32 million |
| Flash Flood | 68 | 0 | 0 | $4.6 million |
| Drought | 32 | 0 | 0 | $110 million |
| Thunderstorm Wind | 24 | 0 | 0 | $496,000 |
| Winter Storm | 24 | 0 | 0 | $975,000 |
| High Wind | 22 | 1 | 0 | $725,000 |
| Heavy Snow | 18 | 0 | 0 | $3.4 million |
| Blizzard | 16 | 0 | 0 | $335,000 |
| Ice Storm | 14 | 0 | 0 | $488,000 |
| Frost/Freeze | 9 | 0 | 0 | $46 million |
| Cold/Wind Chill | 7 | 0 | 0 | $294,000 |
| Extreme Cold/Wind Chill | 7 | 0 | 0 | |
| Lightning | 4 | 0 | 1 | $280,000 |
| Funnel Cloud | 3 | 0 | 0 | |
| Excessive Heat | 3 | 0 | 0 | $135,000 |
| Heavy Rain | 3 | 0 | 0 | |
| Heat | 1 | 0 | 0 | |
| Winter Weather | 1 | 0 | 0 | |
| Sleet | 1 | 0 | 0 |
The deadliest
The costliest
Damage within this county, in the dollars of its year.
- Drought, July 1, 2012
- Frost/Freeze, September 14, 1996
- Tornado, June 7, 1984
- Drought, August 1, 2013
- Flood, June 12, 2010
- Drought, August 1, 2003
- Drought, August 1, 2001
- Drought, August 1, 2012
- Drought, September 1, 2000
- Drought, August 14, 2000
- Drought, July 20, 1999
- Heavy Snow, October 26, 1997
- Frost/Freeze, October 10, 2009
- Flood, June 17, 1996
- Flood, August 1, 2010
- Frost/Freeze, April 11, 2012
- Flood, June 25, 2010
- Flood, June 1, 2008
- Flood, July 1, 2010
- Flash Flood, August 9, 2010
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
The strongest tornadoes
- Tornado, June 27, 1953
- Tornado, October 14, 1966
- Tornado, May 25, 2008
- Tornado, June 7, 1984
- Tornado, July 28, 1986
- Tornado, May 24, 1989
- Tornado, July 26, 1969
- Tornado, May 18, 1971
- Tornado, September 16, 1978
- Tornado, May 8, 1988
- Tornado, July 19, 2018
- Tornado, August 18, 1956
- Tornado, May 26, 1965
- Tornado, June 6, 1969
- Tornado, May 12, 1970
Every episode, newest first
- Hail, June 19, 2025
- Hail, March 14, 2025
- Blizzard, March 4, 2025
- Winter Storm, February 11, 2025
- Extreme Cold/Wind Chill, January 20, 2025
- Ice Storm, December 14, 2024
- Hail, July 28, 2024
- Tornado, July 15, 2024
- Flash Flood, July 2, 2024
- Hail, May 24, 2024
- Flash Flood, May 20, 2024
- Hail, May 19, 2024
- Drought, May 1, 2024
- Hail, April 27, 2024
- Drought, April 1, 2024
- Drought, March 1, 2024
- Drought, February 1, 2024
- Extreme Cold/Wind Chill, January 13, 2024
- Blizzard, January 11, 2024
- Winter Storm, January 8, 2024
- Drought, January 1, 2024
- Drought, December 1, 2023
- Drought, November 1, 2023
- Drought, October 1, 2023
- Drought, September 1, 2023
- Drought, August 1, 2023
- Tornado, July 28, 2023
- Hail, July 17, 2023
- Drought, July 1, 2023
- Drought, June 27, 2023
- Hail, May 7, 2023
- Tornado, March 31, 2023
- Winter Storm, February 15, 2023
- Blizzard, December 22, 2022
- Heavy Rain, November 4, 2022
- Drought, November 1, 2022
- Drought, October 1, 2022
- Hail, September 17, 2022
- Drought, September 1, 2022
- Drought, August 9, 2022
- Winter Storm, January 14, 2022
- Winter Storm, January 1, 2022
- Tornado, December 15, 2021
- Drought, November 1, 2021
- Drought, October 1, 2021
- Hail, August 26, 2021
- Hail, July 9, 2021
- Cold/Wind Chill, February 13, 2021
- Blizzard, February 4, 2021
- Heavy Snow, January 25, 2021
- Winter Storm, December 29, 2020
- Drought, September 1, 2020
- Tornado, August 10, 2020
- Thunderstorm Wind, June 9, 2020
- Hail, May 14, 2020
- Extreme Cold/Wind Chill, February 12, 2020
- Blizzard, January 17, 2020
- Frost/Freeze, October 11, 2019
- Hail, July 20, 2019
- Excessive Heat, July 17, 2019
- Flood, June 28, 2019
- Flood, June 1, 2019
- Tornado, May 29, 2019
- Flash Flood, May 28, 2019
- Flood, May 27, 2019
- Flood, May 17, 2019
- Hail, May 16, 2019
- Frost/Freeze, April 28, 2019
- Flash Flood, March 9, 2019
- Winter Storm, February 11, 2019
- Extreme Cold/Wind Chill, January 29, 2019
- Winter Storm, January 22, 2019
- Winter Storm, January 11, 2019
- Blizzard, November 25, 2018
- Frost/Freeze, October 15, 2018
- Tornado, October 8, 2018
- Flood, October 5, 2018
- Tornado, September 4, 2018
- Hail, August 28, 2018
- Tornado, July 19, 2018
- Thunderstorm Wind, July 13, 2018
- Flash Flood, June 13, 2018
- Hail, May 11, 2018
- Extreme Cold/Wind Chill, January 1, 2018
- Extreme Cold/Wind Chill, December 30, 2017
- Frost/Freeze, October 28, 2017
- Thunderstorm Wind, October 21, 2017
- Heavy Rain, October 3, 2017
- Drought, October 1, 2017
- Drought, September 1, 2017
- Drought, August 1, 2017
- Hail, June 15, 2017
- Hail, May 17, 2017
- Hail, April 15, 2017
- Hail, April 9, 2017
- Tornado, November 28, 2016
- Frost/Freeze, October 13, 2016
- Flash Flood, August 23, 2016
- Excessive Heat, July 20, 2016
- Tornado, July 19, 2016
- Hail, July 13, 2016
- High Wind, April 3, 2016
- Flood, January 7, 2016
- Winter Storm, December 28, 2015
- Flood, December 21, 2015
- Flood, December 13, 2015
- Heavy Rain, December 12, 2015
- Ice Storm, November 26, 2015
- Tornado, November 11, 2015
- Flash Flood, July 28, 2015
- Flash Flood, July 27, 2015
- Flood, July 26, 2015
- Flood, July 15, 2015
- Hail, June 28, 2015
- Flood, June 25, 2015
- Tornado, June 20, 2015
- Funnel Cloud, June 15, 2015
- Funnel Cloud, June 14, 2015
- Winter Storm, February 1, 2015
- Heavy Snow, January 5, 2015
- Flood, October 13, 2014
- Flash Flood, September 9, 2014
- Flash Flood, August 23, 2014
- Flash Flood, July 12, 2014
- Flash Flood, June 26, 2014
- Hail, June 22, 2014
- Tornado, June 16, 2014
- Tornado, April 27, 2014
- Hail, April 12, 2014
- Tornado, March 27, 2014
- Winter Storm, February 4, 2014
- High Wind, January 26, 2014
- Blizzard, January 16, 2014
- Extreme Cold/Wind Chill, January 5, 2014
- Heavy Snow, December 21, 2013
- Hail, September 19, 2013
- Hail, August 6, 2013
- Drought, August 1, 2013
- Flash Flood, June 24, 2013
- Tornado, May 26, 2013
- Tornado, May 19, 2013
- Flash Flood, April 17, 2013
- Heavy Snow, February 26, 2013
- Winter Storm, January 29, 2013
- Blizzard, December 20, 2012
- Winter Storm, December 19, 2012
- Drought, October 1, 2012
- Drought, September 1, 2012
- Hail, August 16, 2012
- Drought, August 1, 2012
- Drought, July 1, 2012
- Thunderstorm Wind, July 1, 2012
- High Wind, May 3, 2012
- Tornado, April 14, 2012
- Frost/Freeze, April 11, 2012
- High Wind, January 1, 2012
- Excessive Heat, July 15, 2011
- Tornado, June 26, 2011
- Tornado, June 19, 2011
- Flash Flood, June 13, 2011
- Flood, June 9, 2011
- Flash Flood, June 8, 2011
- Hail, June 5, 2011
- Hail, May 29, 2011
- Flood, May 29, 2011
- Tornado, May 22, 2011
- Hail, May 21, 2011
- Hail, April 3, 2011
- Heavy Snow, February 24, 2011
- Blizzard, February 1, 2011
- Blizzard, December 11, 2010
- Flood, August 9, 2010
- Flash Flood, August 9, 2010
- Flash Flood, August 8, 2010
- Flood, August 4, 2010
- Flood, August 1, 2010
- Flood, July 5, 2010
- Flash Flood, July 3, 2010
- Flood, July 1, 2010
- Flood, June 25, 2010
- Flash Flood, June 22, 2010
- Flood, June 22, 2010
- Flood, June 12, 2010
- Flood, June 12, 2010
- Flash Flood, June 12, 2010
- Tornado, June 1, 2010
- Flood, May 11, 2010
- Flood, April 24, 2010
- Hail, April 2, 2010
- Flood, March 9, 2010
- Blizzard, January 25, 2010
- Ice Storm, January 20, 2010
- Winter Storm, January 6, 2010
- Blizzard, December 8, 2009
- Flood, November 1, 2009
- Flood, October 29, 2009
- Flood, October 22, 2009
- Frost/Freeze, October 10, 2009
- Flood, August 27, 2009
- Hail, August 9, 2009
- Hail, July 14, 2009
- Flash Flood, June 23, 2009
- Flood, June 19, 2009
- Flood, June 18, 2009
- Hail, June 17, 2009
- Flood, June 8, 2009
- Flood, May 28, 2009
- Flood, April 26, 2009
- Flood, March 24, 2009
- Flood, March 9, 2009
- Flood, March 8, 2009
- Flood, March 8, 2009
- Flood, February 9, 2009
- Hail, December 27, 2008
- Ice Storm, December 27, 2008
- Ice Storm, December 18, 2008
- Sleet, December 14, 2008
- High Wind, October 26, 2008
- Hail, August 4, 2008
- Flood, July 28, 2008
- Flood, July 18, 2008
- Tornado, June 12, 2008
- Tornado, June 4, 2008
- Flood, June 1, 2008
- Flash Flood, June 1, 2008
- Flood, May 30, 2008
- Tornado, May 29, 2008
- Tornado, May 25, 2008
- Flood, April 25, 2008
- Flood, April 18, 2008
- Flood, April 18, 2008
- Tornado, April 10, 2008
- Flood, April 8, 2008
- Hail, March 27, 2008
- Flood, March 12, 2008
- Flood, March 2, 2008
- Winter Storm, February 17, 2008
- Winter Storm, February 5, 2008
- Heavy Snow, February 3, 2008
- Ice Storm, December 10, 2007
- Flood, October 15, 2007
- Tornado, October 2, 2007
- Tornado, September 30, 2007
- Flood, August 23, 2007
- Flash Flood, August 23, 2007
- Flash Flood, August 8, 2007
- Tornado, June 21, 2007
- Tornado, June 7, 2007
- Flood, June 1, 2007
- Flood, May 6, 2007
Earlier years, state by state:
More
Tornadoes in Mahaska CountyEvery warning in Mahaska County since 1986Every county in Iowa
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.