Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Dallas County, Missouri

104

Recorded events

3

Direct deaths

0

Direct injuries

$1.1M

Property damage

Flash Flood in Dallas County, Missouri: 104 recorded events between 1996 and 2026. The strongest on record measured 0. That places the county #157 nationally and #17 statewide for this hazard.

Decade by decade

Flash Flood in Dallas County, Missouri: events per decade

Flash Flood in Dallas County, Missouri: recorded events per decade
Flash Flood in Dallas County, Missouri: recorded events per decade

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Dallas County is the 2000s, when 36 of the county's 104 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 Dallas County archive, flash flood makes up 20.8% of all recorded severe weather across 9 hazard types. Nationally the county sits at #157 for this hazard and #17 within Missouri, putting it in the 95.0 percentile of all U.S. counties.

Seasonality

Events by month

10Jan
2Feb
5Mar
11Apr
11May
23Jun
16Jul
6Aug
9Sep
3Oct
4Nov
4Dec

Jun is the peak month for flash flood in Dallas County with 23 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.

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Sep 8, 2018OLIVE010$30K
Dec 27, 2015SPRING GROVE010$0
Nov 15, 2009COLT010$5K
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Apr 15, 2026CEDAR RIDGE$0
Apr 15, 2026LEADMINE$0
Jun 15, 2025CEDAR RIDGE0$0
Jun 15, 2025BUFFALO0$0
Jun 15, 2025BUFFALO0$0
Jun 4, 2025LONG LANE0$0
Jun 4, 2025MARCH0$0
Apr 4, 2025CEDAR RIDGE0$0
Apr 4, 2025CEDAR RIDGE0$0
Apr 4, 2025LONG LANE0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Dallas County

County overview →

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

How many flash flood events are on record in Dallas County, Missouri?

104 flash flood events are recorded in Dallas County between 1996 and 2026, causing 3 direct deaths.

What is the strongest flash flood recorded in Dallas County?

The strongest flash flood on record in Dallas County measured 0.

Where does the flash flood data for Dallas 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

“Flash Flood in Dallas County, Missouri.” Severe Weather History. severeweatherhistory.com/county/missouri/dallas-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


Historical reference only — for official alerts visit weather.gov