78
Recorded events
0
Direct deaths
0
Direct injuries
$5.3M
Property damage
Flood in Mahaska County, Iowa: 78 recorded events between 1996 and 2019. The strongest on record measured 0. That places the county #107 nationally and #10 statewide for this hazard.
Decade by decade
Flood in Mahaska County, Iowa: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flood in Mahaska County is the 2010s, when 41 of the county's 78 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 Mahaska County archive, flood makes up 18.2% of all recorded severe weather across 8 hazard types. Nationally the county sits at #107 for this hazard and #10 within Iowa, putting it in the 96.3 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for flood in Mahaska County with 17 recorded events, while Feb 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 |
|---|---|---|---|
| Jun 29, 2019 | CEDAR | 0 | $0 |
| Jun 1, 2019 | CEDAR | 0 | $0 |
| May 29, 2019 | BEACON | 0 | $10K |
| May 29, 2019 | BEACON | 0 | $250K |
| May 28, 2019 | CEDAR | 0 | $50K |
| May 27, 2019 | CEDAR | 0 | $100K |
| May 22, 2019 | CHILLICOTHE | 0 | $0 |
| Mar 10, 2019 | EVANS | 0 | $20K |
| Oct 8, 2018 | EVANS | 0 | $0 |
| Oct 6, 2018 | OLIVET | 0 | $50K |
Other hazards here
More from Mahaska County
- Thunderstorm Wind 151
- Hail 91
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The Des Moines River at Eddyville crested at 63.1 feet on 27 May 2019 at 08:15 UTC. While heavy rain did fall at times during the period, the majority of the reason the river is in flood was due to increased releases from Lake Red Rock.
Quick answers
Frequently asked
How many flood events are on record in Mahaska County, Iowa?
78 flood events are recorded in Mahaska County between 1996 and 2019, causing 0 direct deaths.
What is the strongest flood recorded in Mahaska County?
The strongest flood on record in Mahaska County measured 0.
Where does the flood data for Mahaska 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 Mahaska County, Iowa.” Severe Weather History. severeweatherhistory.com/county/iowa/mahaska-county/flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.