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Poweshiek storm history

Storm events recorded in Poweshiek, Iowa between 1950 and 2025.

549
Total events
35
Tornadoes
93
Hail
36
Floods
8
Deaths
$36.4M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

September 16, 1978 · Poweshiek, Iowa
Tornado F3 Tornado4 deaths, 43 injuries, $2.5M damage
April 19, 1966 · Poweshiek, Iowa
Tornado F3 Tornado
August 12, 1956 · Poweshiek, Iowa
Tornado F3 Tornado8 injuries
August 10, 2020 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind1 death
Law enforcement reported a large tree fell on a home.
August 10, 2020 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind1 death
Law enforcement reported damage to power lines in the area.
January 26, 1996 · Poweshiek, Iowa
Heavy Snow Heavy Snow2 deaths
April 6, 2010 · Poweshiek, Iowa
Hail Hail6 injuries
April 6, 2010 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind$3.0M damage
On the north edge of Grinnell, cars were reported off the road and flipped. Power lines were down and roofs were blown off homes.
September 30, 2007 · Poweshiek, Iowa
Tornado EF2 Tornado$2.5M damage
Tornado moved into Poweshiek County from Jasper County. It lifted west of Malcom.
August 1, 2003 · Poweshiek, Iowa
Drought Drought$12.7M damage
May 8, 1988 · Poweshiek, Iowa
Tornado F2 Tornado$2.5M damage
June 26, 1978 · Poweshiek, Iowa
Tornado F2 Tornado1 injury, $2.5M damage
July 29, 2025 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Personal weather station gust to 63 mph.
July 10, 2025 · Poweshiek, Iowa
Funnel Cloud Funnel Cloud
Law enforcement relayed a public report of a funnel cloud.
June 20, 2025 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Delayed report of tree damage, solar farm damage, and large branches downed mainly on the north side of Grinnell.
June 19, 2025 · Poweshiek, Iowa
Heavy Rain Heavy Rain
Rain total of 3 inches from the morning storms.
June 19, 2025 · Poweshiek, Iowa
Heavy Rain Heavy Rain
Morning total of 5.1 inches from storms.
March 14, 2025 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Two semis blown over.
March 5, 2025 · Poweshiek, Iowa
High Wind High Wind
February 11, 2025 · Poweshiek, Iowa
Winter Storm Winter Storm
January 20, 2025 · Poweshiek, Iowa
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
December 14, 2024 · Poweshiek, Iowa
Ice Storm Ice Storm
November 1, 2024 · Poweshiek, Iowa
Drought Drought
Widespread rainfall of 1 to 2 inches over the past week helped to end the Severe Drought conditions across Poweshiek County.
October 29, 2024 · Poweshiek, Iowa
Drought Drought
Prolong dryness this fall along with above normal temperatures has led to the expansion of Severe Drought conditions into Poweshiek County.
October 24, 2024 · Poweshiek, Iowa
Hail Hail
August 15, 2024 · Poweshiek, Iowa
Hail Hail
Hail estimated to be the size of a grape, or 0.75 inches.
July 15, 2024 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Mesonet personal weather station report of a 78 mph thunderstorm wind gust.
July 15, 2024 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Tree on house, with time of occurrence estimated from radar.
June 25, 2024 · Poweshiek, Iowa
Funnel Cloud Funnel Cloud
Funnel spotted along and near highway 21 and 475th.
June 25, 2024 · Poweshiek, Iowa
Funnel Cloud Funnel Cloud
May 21, 2024 · Poweshiek, Iowa
Flood Flood
Approximately 10 secondary road closures due to water over the road in northern parts of the county.
May 21, 2024 · Poweshiek, Iowa
Flood Flood
Report of flooding via mping.
May 1, 2024 · Poweshiek, Iowa
Drought Drought
Ample rainfall during the spring continued across Poweshiek County into second half of May with severe drought conditions ending.
April 1, 2024 · Poweshiek, Iowa
Drought Drought
Despite an increase in rainfall, the long duration of the drought kept severe to extreme drought conditions over Poweshiek County through the end of April.
March 1, 2024 · Poweshiek, Iowa
Drought Drought
Precipitation during the month of March did increase across Poweshiek county but amounts were still mostly below normal, hence the continuation of severe to extreme drought conditions.
February 1, 2024 · Poweshiek, Iowa
Drought Drought
Above normal temperatures and below normal precipitation allowed severe to extreme drought conditions to persist across Poweshiek county.
January 13, 2024 · Poweshiek, Iowa
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
January 12, 2024 · Poweshiek, Iowa
Winter Storm Winter Storm
January 12, 2024 · Poweshiek, Iowa
Blizzard Blizzard
January 8, 2024 · Poweshiek, Iowa
Winter Storm Winter Storm
January 1, 2024 · Poweshiek, Iowa
Drought Drought
Severe to extreme drought persisted in Poweshiek county during January with temperatures and precipitation above normal. Longer term precipitation deficits kept the area from improving.
December 1, 2023 · Poweshiek, Iowa
Drought Drought
Severe drought conditions remained across Poweshiek county in December with above normal temperatures. Rainfall was slightly above normal but did little to alleviate drought conditions, particularly longer term deficits.
November 1, 2023 · Poweshiek, Iowa
Drought Drought
Severe to Extreme drought conditions persisted across much of Poweshiek county for the duration of November given lack of rain and above normal temperatures.
October 1, 2023 · Poweshiek, Iowa
Drought Drought
Severe to extreme drought conditons maintained a presence in Poweskiek county during the month of October. Temperatures remained above normal during the month with near normal rainfall although longer range precipitation remains well below normal.
September 1, 2023 · Poweshiek, Iowa
Drought Drought
Severe to extreme drought persisted in much of Poweshiek county during September given the above normal temperatures and below normal precipitation.
August 29, 2023 · Poweshiek, Iowa
Drought Drought
Severe Drought expanded into Poweshiek county as hot temperatures and low precipitation persisted late in August.
July 4, 2023 · Poweshiek, Iowa
Drought Drought
Severe drought conditions expanded into Poweshiek County for a brief period during July with dry and very warm conditions. However, substantial rainfall mid month alleviated the conditions.
May 7, 2023 · Poweshiek, Iowa
Hail Hail
Baseball sized hail with strong winds. Report via social media.
May 7, 2023 · Poweshiek, Iowa
Hail Hail
Report via social media.
May 7, 2023 · Poweshiek, Iowa
Thunderstorm Wind Thunderstorm Wind
Trailers blown over at a dealership south of Grinnell. Report via social media.

Events by year

YearEventsTornadoes
202590
2024200
2023191
2022121
2021190
2020100
2019203
2018262
2017130
2016122
2015191
2014190
2013190
2012200
2011150
2010230
2009100
2008322
2007112
200670
2005160
2004130
2003240
200280
2001191
2000171
199960
1998200
199750
1996200
199530
199430
199140
199020
198930
198831
198680
198531
198410
198120
198010
197910
197822
197610
197530
197410
197121
197052
196932
196811
196711
196611
196564
196210
196020
195911
195611
195311