Hamilton County, Iowa
Tornadoes, hail, floods and severe storms recorded here between 1963 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
56
Tornado reports
149
Hail reports
72
Floods since 1996
683
All events
4
Deaths
$63.5M
Property damage
Tornado paths in Hamilton County
The part of each tornado’s path NOAA recorded in this county, 55 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.
Tornado moved from Webster County in to Hamilton County. One woman was killed when her house collapsed.
Area observations recorded visibility under one quarter mile overnight and through the morning.
Numerous roads impassible across Hamilton County due to flash flooding.
Heavy Snow Heavy Snow
High Wind High Wind
A gust of 58 mph at KEBS.
Thunderstorm Wind Thunderstorm Wind
Gust measured by a personal weather station.
Lightning Lightning
A large tree was struck by lightning at 833 am. Delayed report.
Thunderstorm Wind Thunderstorm Wind
Tree limbs up to 3 to 4 inches down in Webster City.
High Wind High Wind
Three personal weather stations recorded gusts of 59 to 66 mph on the edge of a stratiform rain area.
Blizzard Blizzard
High Wind High Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Tree fell on power line in Stratford. Time estimated from radar.
Blizzard Blizzard
High Wind High Wind
High Wind High Wind
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Drought Drought
Widespread rainfall of 1 to 2 inches over the past week helped to end the Severe Drought conditions across Hamilton County.
Drought Drought
Prolong dryness this fall along with above normal temperatures has led to the expansion of Severe Drought conditions into Hamilton County.
Heavy Rain Heavy Rain
Personal weather station reporting 3.7 inches storm total with rain still in progress.
Hail Hail
Public report of 1.25-inch hail 2 miles SE of Woolstock.
Thunderstorm Wind Thunderstorm Wind
Estimated winds of 50-60 mph and pea sized hail. Time of occurrence estimated from radar.
Tornado EF1 Tornado
Trained spotter reported damage on both sides of Interstate 35 in conjunction with this tornado. The tornado also tossed over 2 semis that were on the interstate. A hog confinement building was partially destroyed providing the EF1 damage.
Thunderstorm Wind Thunderstorm Wind
No comments included in this report.
Thunderstorm Wind Thunderstorm Wind
Delayed report of semis tipped over on I-35 near mile marker 139, along with power line damage. Time of occurrence estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Large tree branches down and power outages. Simi crashes along I-35.
Thunderstorm Wind Thunderstorm Wind
Emergency manager reported very strong winds and power outages.
Thunderstorm Wind Thunderstorm Wind
Local media reported power outages and tree limbs down.
Drought Drought
Severe drought ended across Hamilton County as generous spring-time rainfall continued into early May.
Tornado EFU Tornado
A brief tornado developed in far northern Hamilton County and travelled a short distance north before leaving the county. No damage indicators were impacted in Hamilton County, hence the EFU rating. This tornado moved into Wright county.
Drought Drought
Despite an increase in rainfall, the long duration of the drought kept severe drought conditions over Hamilton County through the end of April.
Drought Drought
Precipitation during the month of March did increase across Hamilton county with amounts near normal. There was some minor improvement in drought conditions but severe drought continued through the end of the month.
Drought Drought
Above normal temperatures and below normal precipitation allowed severe drought conditions to persist across Hamilton county.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Winter Storm Winter Storm
Blizzard Blizzard
Winter Storm Winter Storm
Drought Drought
Severe drought persisted in Hamilton county during January with temperatures remaining above normal. Precipitation was above normal but this did little to help improve the longer term dryness across the area.
Drought Drought
Severe drought conditions remained across Hamilton county through December with above normal temperatures. Rainfall was slightly above normal but did little to alleviate drought conditions, particularly longer term deficits.
Drought Drought
Severe drought conditions persisted in far southwest and northeast Hamilton county for the duration of November given lack of rain and above normal temperatures.
Drought Drought
Severe drought conditons maintained a presence in Hamilton 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.
Drought Drought
Widespread severe drought persisted in much of Hamilton county during September given the above normal temperatures and below normal precipitation.
Drought Drought
Severe Drought expanded into Hamilton county as hot temperatures and low precipitation persisted late in August.
Drought Drought
Hamilton County started in severe drought to begin February but wet conditions persisted through the middle of the month along with some thaw. This allowed infiltration of water into the ground and improved drought conditions by the 21st.
Winter Storm Winter Storm
Combination of at least 4 inches of snow and wind gusts over 40 mph.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 2 | 0 |
| 2025 | 12 | 0 |
| 2024 | 22 | 2 |
| 2023 | 10 | 0 |
| 2022 | 12 | 0 |
| 2021 | 19 | 6 |
| 2020 | 9 | 0 |
| 2019 | 14 | 0 |
| 2018 | 30 | 1 |
| 2017 | 14 | 0 |
| 2016 | 12 | 0 |
| 2015 | 28 | 0 |
| 2014 | 34 | 13 |
| 2013 | 21 | 0 |
| 2012 | 12 | 0 |
| 2011 | 14 | 0 |
| 2010 | 30 | 0 |
| 2009 | 17 | 2 |
| 2008 | 31 | 1 |
| 2007 | 26 | 1 |
| 2006 | 22 | 0 |
| 2005 | 24 | 5 |
| 2004 | 27 | 1 |
| 2003 | 20 | 1 |
| 2002 | 14 | 0 |
| 2001 | 22 | 1 |
| 2000 | 31 | 0 |
| 1999 | 23 | 2 |
| 1998 | 20 | 0 |
| 1997 | 17 | 0 |
| 1996 | 21 | 0 |
| 1995 | 7 | 0 |
| 1994 | 4 | 1 |
| 1993 | 1 | 0 |
| 1992 | 4 | 1 |
| 1991 | 6 | 2 |
| 1990 | 7 | 3 |
| 1989 | 2 | 2 |
| 1988 | 1 | 0 |
| 1987 | 3 | 1 |
| 1986 | 4 | 0 |
| 1984 | 1 | 0 |
| 1983 | 2 | 0 |
| 1980 | 3 | 2 |
| 1979 | 4 | 3 |
| 1978 | 3 | 0 |
| 1977 | 2 | 0 |
| 1976 | 2 | 0 |
| 1975 | 1 | 0 |
| 1974 | 10 | 1 |
| 1973 | 1 | 0 |
| 1969 | 1 | 0 |
| 1967 | 1 | 1 |
| 1966 | 1 | 1 |
| 1964 | 1 | 1 |
| 1963 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Hamilton County, measured to its path.
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