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Flood in Clark County, Missouri
87 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 87 flood events in Clark County, Missouri, between 1950 and 2026, spread over 21 years.
June is the busiest month, with 36 of the recorded events. The last 20 years account for 64 events against 23 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.8% of the 10,821 flood events recorded in Missouri; its 17.2 per 100 square miles compares with 15.7 statewide.
NCEI attributes 1 death in the county to floods and flash floods.
Compared with Missouri
| Measure | Clark County | Missouri | US |
|---|---|---|---|
| Flood events since 1950 | 87 | 10,821 | 183,559 |
| Per 100 square miles | 17.2 | 15.7 | 5.2 |
| Per 10,000 residents | 129.2 | 17.5 | 5.5 |
| Deaths recorded | 1 | 159 | 2,961 |
| Busiest month | June | May | June |
By year
Seasonality
0Feb
0Mar
0Apr
4May
18Jun
36Jul
13Aug
12Sep
2Oct
2Nov
0Dec
0
Recorded events
All 87 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 11 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 10 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 4 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 28 Jun 2021 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2020 | Flash Flood | — | — | — | — | — | County |
| 27 Sep 2019 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2019 | Flood | — | — | — | — | — | County |
| 30 May 2019 | Flood | — | — | — | — | — | County |
| 29 May 2019 | Flood | — | — | — | — | — | County |
| 29 May 2019 | Flood | — | — | — | — | — | County |
| 25 May 2019 | Flash Flood | — | — | — | — | — | County |
| 2 May 2019 | Flood | — | — | — | — | — | County |
| 11 Jul 2015 | Flash Flood | — | — | — | — | — | County |
| 26 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 7 Jun 2014 | Flood | — | — | — | 1 | — | County |
| 1 Jun 2013 | Flood | — | — | — | — | — | County |
| 29 May 2013 | Flood | — | — | — | — | — | County |
| 18 Apr 2013 | Flood | — | — | — | — | — | County |
| 18 Apr 2013 | Flood | — | — | — | — | — | County |
| 4 May 2012 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 2011 | Flash Flood | — | $25K | — | — | — | County |
| 20 Jun 2011 | Flood | — | $500K | — | — | — | County |
| 20 Jun 2011 | Flash Flood | — | $5K | — | — | — | County |
| 18 Jun 2011 | Flash Flood | — | — | — | — | — | County |
| 15 Jun 2011 | Flood | — | — | — | — | — | County |
| 14 Jun 2011 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2011 | Flood | — | — | — | — | — | County |
| 14 Jun 2011 | Flood | — | $125K | — | — | — | County |
| 14 Jun 2011 | Flood | — | $250K | — | — | — | County |
| 5 Oct 2010 | Flood | — | — | — | — | — | County |
| 21 Aug 2010 | Flood | — | $125K | — | — | — | County |
| 9 Aug 2010 | Flood | — | $250K | — | — | — | County |
| 27 Jul 2010 | Flood | — | $75K | — | — | — | County |
| 24 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 20 Jul 2010 | Flood | — | $250K | — | — | — | County |
| 19 Jul 2010 | Flood | — | $250K | — | — | — | County |
| 5 Jul 2010 | Flood | — | $125K | — | — | — | County |
| 23 Jun 2010 | Flood | — | $250K | — | — | — | County |
| 22 Jun 2010 | Flood | — | $250K | — | — | — | County |
| 22 Jun 2010 | Flood | — | $175K | — | — | — | County |
| 22 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 21 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 14 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 13 Jun 2010 | Flood | — | $250K | — | — | — | County |
| 13 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 12 Jun 2010 | Flash Flood | — | $100K | — | — | — | County |
| 4 Jun 2010 | Flash Flood | — | $500K | — | — | — | County |
| 13 May 2010 | Flood | — | $250K | — | — | — | County |
| 13 May 2010 | Flood | — | $500K | — | — | — | County |
| 12 May 2010 | Flash Flood | — | — | — | — | — | County |
| 12 May 2010 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 2009 | Flash Flood | — | — | — | — | — | County |
| 8 Jun 2009 | Flash Flood | — | — | — | — | — | County |
| 13 Sep 2008 | Flood | — | $500K | $500K | — | — | County |
| 3 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2008 | Flood | — | — | — | — | — | County |
| 1 Apr 2008 | Flood | — | — | — | — | — | County |
| 24 Aug 2007 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2004 | Flash Flood | — | $50K | $5K | — | — | County |
| 27 Aug 2004 | Flash Flood | — | $10K | $3K | — | — | County |
| 27 Aug 2004 | Flood | — | — | $5K | — | — | Forecast zone |
| 1 Jun 2004 | Flood | — | — | — | — | — | Forecast zone |
| 27 May 2004 | Flood | — | — | — | — | — | Forecast zone |
| 9 Jul 2003 | Flash Flood | — | $100K | $15K | — | — | County |
| 9 Jul 2003 | Flash Flood | — | $30K | $10K | — | — | County |
| 8 Jul 2003 | Flash Flood | — | $50K | $5K | — | — | County |
| 8 Jul 2003 | Flash Flood | — | $100K | $15K | — | — | County |
| 8 Jul 2003 | Flash Flood | — | $15K | $5K | — | — | County |
| 5 Jul 2003 | Flash Flood | — | $200K | $20K | — | — | County |
| 13 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 2002 | Flash Flood | — | — | — | — | — | County |
| 12 May 2002 | Flood | — | — | — | — | — | Forecast zone |
| 12 May 2002 | Flash Flood | — | — | — | — | — | County |
| 11 May 2002 | Flash Flood | — | — | — | — | — | County |
| 21 Oct 2001 | Flood | — | — | — | — | — | County |
| 23 Aug 2001 | Flood | — | — | — | — | — | County |
| 14 May 2001 | Flash Flood | — | — | — | — | — | County |
| 1 May 2001 | Flood | — | — | — | — | — | Forecast zone |
| 15 Apr 2001 | Flood | — | — | — | — | — | Forecast zone |
| 13 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 1 May 1996 | Flood | — | — | — | — | — | Forecast zone |
Questions and answers
How many flood events has Clark County had?
87 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Clark County?
11 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Clark County?
The flood of 13 Sep 2008, with property damage estimated by NCEI at $500K and crop damage at $500K.
How does Clark County compare with Missouri for flood?
17.2 events per 100 square miles against 15.7 statewide; the county holds 87 of the state's 10,821 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.