53
Recorded events
0
Direct deaths
0
Direct injuries
$55.2M
Property damage
Flood in Story County, Iowa: 53 recorded events between 1998 and 2024. The strongest on record measured 0. That places the county #222 nationally and #19 statewide for this hazard.
Decade by decade
Flood in Story County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flood in Story County is the 2010s, when 35 of the county's 53 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Story County archive, flood makes up 4.8% of all recorded severe weather across 8 hazard types. Nationally the county sits at #222 for this hazard and #19 within Iowa, putting it in the 92.5 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for flood in Story County with 13 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| May 21, 2024 | COLLINS | 0 | $0 |
| Jun 15, 2022 | AMES ARPT | 0 | $0 |
| Jul 4, 2019 | ONTARIO | 0 | $10K |
| Jul 3, 2019 | AMES ARPT | 0 | $0 |
| May 24, 2019 | COLO | 0 | $5K |
| May 24, 2019 | NEVADA MUNI ARPT | 0 | $0 |
| May 24, 2019 | AMES | 0 | $10K |
| May 23, 2019 | COLO | 0 | $0 |
| May 23, 2019 | ONTARIO | 0 | $0 |
| Mar 15, 2019 | STORY CITY | 0 | $200K |
Other hazards here
More from Story County
- Thunderstorm Wind 390
- Hail 325
- Heavy Rain 174
- Tornado 64
- Flash Flood 64
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Low lying areas still flooded across portions of the county along with water over some secondary roads and some damage to secondary roads from previous flash flooding. The emergency manager also reported minor damage to the park in Maxwell from flooding, moderate damage to secondary roads with some damage to bridges and trails across the county.
Story County Emergency Manager reported water over Forest Ave between Broad St and 8th St, and flooding in Story City due to the rising South Skunk River. Flooding and standing water was present across much of northern Story County as well.
Quick answers
Frequently asked
How many flood events are on record in Story County, Iowa?
53 flood events are recorded in Story County between 1998 and 2024, causing 0 direct deaths.
What is the strongest flood recorded in Story County?
The strongest flood on record in Story County measured 0.
Where does the flood data for Story County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Flood in Story County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/story-county/flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.