Louisa County, Iowa
Tornadoes, hail, floods and severe storms recorded here between 1962 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
16
Tornado reports
67
Hail reports
85
Floods since 1996
457
All events
5
Deaths
$64.6M
Property damage
Tornado paths in Louisa County
The part of each tornado’s path NOAA recorded in this county, 16 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.
The tornado touched down on the southern edge of Grandview. It moved through the center of town intensifying in rural areas as it approached the county line. In Grandview, several homes sustained severe damage. North of Grandview, about 1.5 miles, a farm house was completely dest…
An indirect fatality occurred in extreme southern Louisa county on U.S. Highway 61 just north of Iowa Highway 78 at about 232 pm CST. An SUV collided with a semi on the snow and ice covered road, killing the SUV driver.
Major to record flooding caused a levee to fail on the Iowa River at Oakville leading to flash flooding in much of the town. One indirect fatality occurred in rural Oakville in Louisa County. A 35 year old male drowned while attempting to swim across flood waters. He left his car…
Snowfall amounts of 4 to 5 inches were noted across the county. According to the Muscatine Journal, snow played a role in a fatal accident in northern Louisa county near Fredonia on snow-covered county road G40. Two indirect fatalites to children occurred in the accident, ages 9 …
A trained spotter reported heavy rains had produced washed out locations on gravel roads in the area.
A trained spotter reported several limbs and trees were down in town. A few of the trees fell on homes.
The record crest on the Iowa River at Columbus Junction occurred on June 16, 2008 at 32.49 feet. Flood stage is 19 feet. The record crest on the Iowa River at Wapello occurred on June 14, 2008 at 32.15 feet. Flood stage is 20 feet.
Flash Flood Flash Flood
Road closed due to flooding. Person reported that this is the worst flooding they have seen at this location in a long time.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Power lines blown down.
Thunderstorm Wind Thunderstorm Wind
Section of two trees downed to the east and outbuilding door damage, along with a chimney toppled. Time estimated using radar data.
Hail Hail
Hail Hail
Hail Hail
Blizzard Blizzard
Trained spotter snowfall reports ranged from 3.6 inches 3 miles east southeast of Amber to 4.8 inches 1 mile southeast of Grandview. Wind gusted between 45 to 55 MPH across eastern Iowa combed with snow and blowing snow reducing visibilities between 1/2sm to 1sm.
Winter Storm Winter Storm
Snowfall reports from neighboring counties support 6 to 9 inches of snow fell in Louisa County.
Flash Flood Flash Flood
Report of high water in the town of Columbus Junction with local creeks overflowing their banks.
Flash Flood Flash Flood
Law Enforcement reported that 175th street is closed between G36 and X17 due to water over the road from Short Creek.
Flash Flood Flash Flood
Based on reports from social media. There is standing water that is several inches deep throughout out the county fairgrounds.
Flash Flood Flash Flood
Numerous rural roads closed within the county due to flash flooding and high water this evening.
Thunderstorm Wind Thunderstorm Wind
A farm shed was destroyed. Time estimated from radar data.
Thunderstorm Wind Thunderstorm Wind
Measured by wind equipement.
Ice Storm Ice Storm
Trained spotters and DOT reported widespread slick conditions with a 0.1 to 0.3 of an inch of ice accumulation on the ground and elevated surfaces.
Hail Hail
A public report relayed a train spotter. The time of the event was estimated using radar.
Hail Hail
Flood Flood
The Mississippi River at New Boston rose above its major flood stage of 18.5 feet around 5 PM on July 2 and crested at 20.82 feet on July 11th. The river fell back below flood stage 3 Pm on July 20th.
Thunderstorm Wind Thunderstorm Wind
Report was relayed by broadcast media. 12-inch tree broken off about a foot above the base. Open farm outbuilding destroyed. Pictures shared and show damage in one direction. Time of the event was estimated using radar.
Thunderstorm Wind Thunderstorm Wind
Roof blown off an unused hog shed from suspected microburst winds. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
A tree was blown onto a mobile home.
Thunderstorm Wind Thunderstorm Wind
A shed was destroyed.
Thunderstorm Wind Thunderstorm Wind
The time of the event was estimated using radar.
Thunderstorm Wind Thunderstorm Wind
An NWS Storm Survey found broken tree limbs.
Tornado EF1 Tornado
An NWS survey team confirmed a long-track EF2 tornado Tuesday afternoon in southeast Iowa. The tornado developed just southwest of Houghton, Iowa in Lee County. Significant damage to homes, trees, and outbuildings was observed. The worst damage occurred at a farmstead north of Ne…
Winter Storm Winter Storm
Numerous reports of 10 to 13 inches of snow were received, with widespread significant drifting snow continuing into the evening hours.
Winter Storm Winter Storm
The COOP Observer reported 7.0 inches of snow.
Flood Flood
The Mississippi River at New Boston rose above its major flood stage of 18.5 feet during the early morning hours of April 26th, The river continued to rise to 20.6 feet late in the day on April 30th. The Mississippi River at Keithsburg rose above its major flood stage of 17.0 fee…
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A power company repair main confirmed that thunderstorm snapped off two power poles. No other damage was found. Time of the event was estimated using radar.
Winter Storm Winter Storm
A CoCoRAHS observer 3 miles east southeast of Amber reported 1.5 inches of snow. Winds quickly increased with a gusts of 40 to 50 MPH which led to blowing and drifting snow across the area. Additionally, this also produced wind chills of -20 to -30. The coldest wind chills occurr…
Winter Storm Winter Storm
Spotter, COCORAHS, and public reports of 4-6 inches of snow fell across portions of Louisa County. Blowing and drifting snow continued to cause problems on roads after plowing, lasting into January 15th. Combined hazards and impacts led towards storm verification, as only a few r…
Winter Storm Winter Storm
Spotter and public reports of 4-6 inches of snow fell across portions of Louisa County. Blowing and drifting snow continued to cause problems on roads after plowing, lasting into January 2nd. Verification was also considered using snow amounts and other combined hazards/impacts, …
Thunderstorm Wind Thunderstorm Wind
Part of a building was reported blown onto the roadway.
Thunderstorm Wind Thunderstorm Wind
A tree was reported down on a roadway 3 miles west of Columbus Junction.
Thunderstorm Wind Thunderstorm Wind
A large tree was blown down, blocking the road at teh intersection of 46th Street and L Avenue.
Winter Storm Winter Storm
Rain and wintry mix started the day, leading to snow (heavy at times), where between 1 and 3 inches of snow fell throughout Louisa County. Strong winds were also noted in the afternoon, with a peak gusts around 25 to 35 mph.
Winter Weather Winter Weather
The COOP observer in Columbus Junction reported 2.0 inches of snow.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 8 | 0 |
| 2025 | 7 | 0 |
| 2024 | 13 | 1 |
| 2023 | 3 | 0 |
| 2022 | 3 | 0 |
| 2021 | 7 | 0 |
| 2020 | 7 | 0 |
| 2019 | 14 | 0 |
| 2018 | 10 | 0 |
| 2017 | 11 | 1 |
| 2016 | 14 | 1 |
| 2015 | 8 | 0 |
| 2014 | 14 | 0 |
| 2013 | 25 | 0 |
| 2012 | 15 | 0 |
| 2011 | 9 | 0 |
| 2010 | 17 | 0 |
| 2009 | 9 | 0 |
| 2008 | 29 | 0 |
| 2007 | 24 | 1 |
| 2006 | 14 | 0 |
| 2005 | 12 | 0 |
| 2004 | 8 | 0 |
| 2003 | 25 | 2 |
| 2002 | 5 | 0 |
| 2001 | 16 | 0 |
| 2000 | 31 | 0 |
| 1999 | 18 | 0 |
| 1998 | 10 | 2 |
| 1997 | 19 | 0 |
| 1996 | 12 | 0 |
| 1994 | 4 | 0 |
| 1992 | 3 | 0 |
| 1991 | 3 | 0 |
| 1990 | 1 | 0 |
| 1988 | 1 | 1 |
| 1987 | 2 | 1 |
| 1985 | 1 | 0 |
| 1984 | 1 | 0 |
| 1983 | 1 | 1 |
| 1982 | 3 | 0 |
| 1981 | 4 | 1 |
| 1978 | 2 | 0 |
| 1977 | 1 | 1 |
| 1976 | 1 | 0 |
| 1974 | 1 | 0 |
| 1973 | 2 | 0 |
| 1971 | 1 | 0 |
| 1970 | 1 | 1 |
| 1969 | 2 | 0 |
| 1968 | 1 | 0 |
| 1967 | 2 | 2 |
| 1966 | 1 | 0 |
| 1962 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Louisa County, measured to its path.
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