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Grundy storm history

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

550
Total events
41
Tornadoes
91
Hail
54
Floods
2
Deaths
$28.8M
Property damage

Most significant events

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

May 30, 1989 · Grundy, Iowa
Tornado F4 Tornado$2.5M damage
April 16, 1960 · Grundy, Iowa
Tornado F3 Tornado
January 1, 1999 · Grundy, Iowa
Winter Storm Winter Storm1 death
June 2, 1952 · Grundy, Iowa
Tornado F2 Tornado1 death, 2 injuries
August 1, 2003 · Grundy, Iowa
Drought Drought$12.7M damage
June 28, 1990 · Grundy, Iowa
Tornado F1 Tornado$2.5M damage
September 22, 2025 · Grundy, Iowa
Hail Hail
Quarter sized hail reported by trained spotter.
August 18, 2025 · Grundy, Iowa
Tornado EFU Tornado
Drone imagery provided by the emergency manager and satellite imagery revealed a track in agricultural fields. No DIs were impacted, resulting in an EF-U rating.
August 18, 2025 · Grundy, Iowa
Tornado EFU Tornado
Drone imagery provided by the emergency manager and satellite imagery revealed a track in agricultural fields. No DIs were impacted, resulting in an EF-U rating.
August 18, 2025 · Grundy, Iowa
Tornado EFU Tornado
Satellite imagery revealed a track in agricultural fields. No DIs were impacted, resulting in an EF-U rating.
July 3, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
July 3, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Six inch tree limbs broken in Grundy Center. Time estimated via radar.
June 20, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Delayed report of trees down and hoop building damaged near 220th and B Ave.
June 20, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Report of large tree split and large branches downed in Reinbeck.
June 19, 2025 · Grundy, Iowa
Heavy Rain Heavy Rain
Total rainfall of 3.06 inches since midnight at mesonet station GW1032 Beaman.
June 19, 2025 · Grundy, Iowa
Heavy Rain Heavy Rain
Rainfall since midnight of 3.68 inches.
June 19, 2025 · Grundy, Iowa
Heavy Rain Heavy Rain
Total rainfall of 3.15 inches at PWS since midnight.
June 11, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Wind gust measured by a personal weather station.
March 14, 2025 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
March 5, 2025 · Grundy, Iowa
Blizzard Blizzard
March 5, 2025 · Grundy, Iowa
High Wind High Wind
February 28, 2025 · Grundy, Iowa
High Wind High Wind
January 20, 2025 · Grundy, Iowa
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
November 1, 2024 · Grundy, Iowa
Drought Drought
Widespread rainfall of 1 to 2 inches over the past week helped to end the Severe Drought conditions across Grundy County.
October 29, 2024 · Grundy, Iowa
Drought Drought
Prolong dryness this fall along with above normal temperatures has led to the expansion of Severe Drought conditions into Grundy County.
June 18, 2024 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Tree damage and minor building damage with a small portion of a barn roof removed.
May 24, 2024 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Tree and utility damage near Wellsburg. Time of occurrence estimated from radar.
May 21, 2024 · Grundy, Iowa
Flash Flood Flash Flood
An increasing number of county roads across the county are becoming impassable due to flash flooding.
May 21, 2024 · Grundy, Iowa
Flash Flood Flash Flood
Flooding on the roadway with field debris piling up.
May 19, 2024 · Grundy, Iowa
Hail Hail
Quarter sized hail reported in Dike. Photo and video relayed via broadcast media. Time estimated from radar.
May 8, 2024 · Grundy, Iowa
Thunderstorm Wind Thunderstorm Wind
Trained spotter reported branches down.
May 1, 2024 · Grundy, Iowa
Drought Drought
Severe drought ended across Grundy County by the middle of May as generous spring-time rainfall persisted in central Iowa.
April 1, 2024 · Grundy, Iowa
Drought Drought
Despite an increase in rainfall, the long duration of the drought kept severe drought conditions over Grundy County through the end of April.
March 1, 2024 · Grundy, Iowa
Drought Drought
Precipitation during the month of March did increase across Grundy county with amounts near normal. There was some minor improvement in drought conditions but severe drought continued through the end of the month.
February 1, 2024 · Grundy, Iowa
Drought Drought
Above normal temperatures and below normal precipitation allowed severe to extreme drought conditions to persist across Grundy county.
January 13, 2024 · Grundy, Iowa
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
January 12, 2024 · Grundy, Iowa
Winter Storm Winter Storm
January 12, 2024 · Grundy, Iowa
Blizzard Blizzard
January 8, 2024 · Grundy, Iowa
Winter Storm Winter Storm
January 1, 2024 · Grundy, Iowa
Drought Drought
Severe to extreme drought persisted in Grundy county during January with temperatures remaining above normal. Precipitation was above normal, however this did little to help the longer term dryness across the area.
December 1, 2023 · Grundy, Iowa
Drought Drought
Severe to extreme drought conditions remained across Grundy county through December with above normal temperatures and below normal rainfall.
November 1, 2023 · Grundy, Iowa
Drought Drought
Severe to Extreme drought conditions persisted in Grundy county for the duration of November given lack of rain and above normal temperatures.
October 1, 2023 · Grundy, Iowa
Drought Drought
Severe to extreme drought conditons maintained a presence in Grundy 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 · Grundy, Iowa
Drought Drought
Widespread severe to extreme drought persisted in Grundy county during September given the above normal temperatures and below normal precipitation.
August 1, 2023 · Grundy, Iowa
Drought Drought
Severe to Extreme drought affected Grundy County as above normal temperatures and below normal rainfall occurred during August.
July 28, 2023 · Grundy, Iowa
Hail Hail
Quarter sized hail accompanied by 60 mph wind gusts from Wellsburg to Grundy Center area.
July 1, 2023 · Grundy, Iowa
Drought Drought
Severe drought conditions in Grundy County eased with decent mid month rainfall.
June 13, 2023 · Grundy, Iowa
Drought Drought
Severe drought expanded into Grundy County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
March 31, 2023 · Grundy, Iowa
Tornado EF1 Tornado
Two tornadoes developed in parallel to the north of Wellsburg. This northern track tornado damaged several trees and outbuildings along its path.
March 31, 2023 · Grundy, Iowa
Tornado EF1 Tornado
Two tornadoes developed in parallel to the north of Wellsburg. This southern track tornado damaged a grain bin along with surrounding trees and outbuilding, then later damaged powerline poles.

Events by year

YearEventsTornadoes
2025173
2024170
2023122
2022120
2021200
2020170
2019160
2018240
2017110
2016172
2015210
2014194
2013240
2012100
201150
2010140
2009223
2008252
2007150
2006120
2005140
2004255
2003120
200271
2001213
2000201
1999131
1998160
199780
1996170
199530
199470
199310
199220
199171
199051
198921
198721
198430
198320
198120
198020
197930
197811
197721
197521
197450
197341
197142
196910
196622
196410
196031
195211