Decatur County, Iowa
Tornadoes, hail, floods and severe storms recorded here between 1956 and 2025, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
18
Tornado reports
95
Hail reports
63
Floods since 1996
475
All events
0
Deaths
$76.2M
Property damage
Tornado paths in Decatur County
The part of each tornado’s path NOAA recorded in this county, 18 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.
Thunderstorm Wind Thunderstorm Wind
Delayed report. Several large trees down in central sections of Lamoni, followed shortly by a 71 mph gust at the Lamoni airport.
Thunderstorm Wind Thunderstorm Wind
A 71 mph gust at the Lamoni airport.
Heavy Rain Heavy Rain
Event total rainfall of 3.07 inches from personal weather station.
Flash Flood Flash Flood
Heavy rain occurred over the area with over 3 inches in an hour. This resulted in a number of flooded roads in town, with water actively flowing at mid rim height on vehicles in flood waters. Impacts were largely confined to town which lies lower that surroundings area. Highway 6…
Heavy Rain Heavy Rain
Event total rainfall of 5.99 inches measured by a personal weather station.
Hail Hail
Report relayed by broadcast media. Delayed report, time estimated by radar.
High Wind High Wind
The Lamoni airport reported a non-thunderstorm wind gust of 62 mph with very light rain in the area and no lightning. Further north in the county a barn was damaged.
High Wind High Wind
The Chariton airport reported a non-thunderstorm wind gust of 61 mph with very light rain in the area and no lightning.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Blizzard Blizzard
High Wind High Wind
Winter Storm Winter Storm
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
The Lamoni ASOS reported a gust of 59 mph. Likely a microburst.
Funnel Cloud Funnel Cloud
Spotter reported a funnel north northwest of Grand River.
Thunderstorm Wind Thunderstorm Wind
Hail Hail
Time of occurrence estimated from radar.
Hail Hail
Emergency manager relayed image of quarter sized hail just north of Garden Grove. Time estimated by radar.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Blizzard Blizzard
Winter Storm Winter Storm
Winter Storm Winter Storm
Drought Drought
Numerous storm mid month allowed conditions to improve with severe drought conditions ending across northern Decatur county.
Drought Drought
Severe drought conditions remained across far northern Decatur county in December with above normal temperatures. Rainfall was above normal but did little to alleviate drought conditions, particularly longer term deficits.
Drought Drought
Severe drought conditions persisted across far northern Decatur county for the duration of November given lack of rain and above normal temperatures.
Drought Drought
Severe drought conditons maintained a presence in Decatur county during the month of October. Temperatures remained above normal during the month with below normal rainfall.
Drought Drought
Above normal temperatures and lack of precipitation allowed severe drought conditions to expand into portions of Decatur county during the later half of September.
Drought Drought
Several rainfall events helped to improve drought and hydrologic conditions across Decatur County in early August.
Drought Drought
Despite a few different periods of rain during the month, severe drought conditions persisted in Decatur County during July.
Thunderstorm Wind Thunderstorm Wind
Lamoni Municipal Airport measured 67 mph wind gust.
Thunderstorm Wind Thunderstorm Wind
Lamoni Municipal Airport ASOS recorded a thunderstorm wind gust of 67 mph.
Drought Drought
Severe drought expanded into Decatur County by mid June with below normal rainfall and very warm temperatures. The drought continued through the end of the month.
High Wind High Wind
Non thunderstorm wind gust recorded by Lamoni ASOS.
Winter Storm Winter Storm
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Heavy Rain Heavy Rain
A rain total of 2.41 inches with rain still falling at time of report.
Heavy Rain Heavy Rain
A 24 hour rain total of 3.07 inches.
Drought Drought
Beneficial rainfall early in November help to alleviate severe drought conditions in Decatur county by the 8th.
Drought Drought
Severe drought was common across much of Decatur County for the month of October as a deficit of rainfall continued along with above normal temperatures.
Drought Drought
Severe drought expanded into portions of Decatur county during the month as lack of rainfall continued across much of the county.
Thunderstorm Wind Thunderstorm Wind
Social media photo of wind blown hail causing damage to siding, windows, gutters, screens, and air conditioner. Time estimated by radar.
Tornado EF2 Tornado
This tornado passed through three counties including Decatur, Wayne and Lucas. The tornado developed east of Leon in central Decatur county and headed northeast. The torndo remained in rural areas of the county for the duration of its path. Damage was primarily to broken power po…
Tornado EFU Tornado
Video provided by a storm chaser indicated a satellite tornado to the larger tornado which travelled through Decatur, Wayne and Lucas counties. This was the first satellite tornado with another occurring later with the larger tornado. This tornado was also observed in high resolu…
Winter Storm Winter Storm
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 13 | 0 |
| 2024 | 11 | 0 |
| 2023 | 11 | 0 |
| 2022 | 11 | 2 |
| 2021 | 10 | 0 |
| 2020 | 3 | 0 |
| 2019 | 13 | 0 |
| 2018 | 24 | 0 |
| 2017 | 11 | 0 |
| 2016 | 3 | 0 |
| 2015 | 14 | 1 |
| 2014 | 24 | 0 |
| 2013 | 10 | 0 |
| 2012 | 10 | 0 |
| 2011 | 12 | 0 |
| 2010 | 24 | 0 |
| 2009 | 12 | 0 |
| 2008 | 28 | 0 |
| 2007 | 14 | 0 |
| 2006 | 7 | 0 |
| 2005 | 10 | 0 |
| 2004 | 30 | 0 |
| 2003 | 7 | 0 |
| 2002 | 9 | 0 |
| 2001 | 37 | 1 |
| 2000 | 13 | 0 |
| 1999 | 11 | 0 |
| 1998 | 10 | 0 |
| 1997 | 12 | 0 |
| 1996 | 23 | 1 |
| 1995 | 1 | 0 |
| 1993 | 3 | 0 |
| 1992 | 2 | 0 |
| 1990 | 4 | 0 |
| 1989 | 2 | 1 |
| 1988 | 1 | 0 |
| 1986 | 6 | 4 |
| 1985 | 1 | 0 |
| 1984 | 3 | 1 |
| 1983 | 1 | 0 |
| 1982 | 3 | 0 |
| 1981 | 1 | 0 |
| 1980 | 2 | 1 |
| 1978 | 1 | 0 |
| 1975 | 1 | 1 |
| 1970 | 1 | 0 |
| 1969 | 1 | 0 |
| 1964 | 3 | 2 |
| 1963 | 1 | 0 |
| 1961 | 2 | 1 |
| 1959 | 2 | 0 |
| 1958 | 1 | 1 |
| 1957 | 2 | 1 |
| 1956 | 3 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Decatur County, measured to its path.
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