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Flood in Atchison County, Missouri
47 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 47 flood events in Atchison County, Missouri, between 1950 and 2026, spread over 15 years.
May is the busiest month, with 18 of the recorded events. The last 20 years account for 24 events against 23 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.4% of the 10,821 flood events recorded in Missouri; its 8.6 per 100 square miles compares with 15.7 statewide.
Compared with Missouri
| Measure | Atchison County | Missouri | US |
|---|---|---|---|
| Flood events since 1950 | 47 | 10,821 | 183,559 |
| Per 100 square miles | 8.6 | 15.7 | 5.2 |
| Per 10,000 residents | 89.8 | 17.5 | 5.5 |
| Deaths recorded | 0 | 159 | 2,961 |
| Busiest month | May | May | June |
By year
Seasonality
0Feb
1Mar
4Apr
4May
18Jun
7Jul
2Aug
6Sep
3Oct
1Nov
1Dec
0
Recorded events
All 47 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 |
|---|---|---|---|---|---|---|---|
| 1 Jun 2019 | Flood | — | — | — | — | — | County |
| 1 May 2019 | Flood | — | — | — | — | — | County |
| 1 Apr 2019 | Flood | — | — | — | — | — | County |
| 9 Mar 2019 | Flood | — | $100K | $100K | — | — | County |
| 18 Jul 2016 | Flood | — | — | — | — | — | County |
| 30 May 2016 | Flood | — | — | — | — | — | County |
| 30 May 2016 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 2015 | Flood | — | — | — | — | — | County |
| 9 Sep 2014 | Flash Flood | — | — | — | — | — | County |
| 9 Sep 2014 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 2014 | Flash Flood | — | — | — | — | — | County |
| 28 May 2013 | Flash Flood | — | — | — | — | — | County |
| 31 Aug 2010 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 6 Jun 2008 | Flood | — | $2K | $10K | — | — | County |
| 30 May 2008 | Flood | — | — | — | — | — | County |
| 9 May 2008 | Flood | — | — | — | — | — | County |
| 3 Mar 2008 | Flood | — | — | — | — | — | County |
| 15 Oct 2007 | Flood | — | — | — | — | — | County |
| 24 Aug 2007 | Flood | — | — | — | — | — | County |
| 8 Aug 2007 | Flood | — | — | — | — | — | County |
| 24 May 2007 | Flood | — | — | — | — | — | County |
| 6 May 2007 | Flood | — | $5.0M | $1.0M | — | — | County |
| 25 Apr 2007 | Flood | — | — | — | — | — | County |
| 12 May 2005 | Flood | — | — | — | — | — | Forecast zone |
| 30 May 2004 | Flood | — | — | — | — | — | Forecast zone |
| 29 May 2004 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2001 | Flood | — | — | — | — | — | Forecast zone |
| 12 Mar 2001 | Flood | — | — | — | — | — | Forecast zone |
| 24 Feb 2001 | Flood | — | — | — | — | — | Forecast zone |
| 21 May 1999 | Flood | — | — | — | — | — | Forecast zone |
| 27 Apr 1999 | Flood | — | — | — | — | — | Forecast zone |
| 15 Apr 1999 | Flood | — | — | — | — | — | Forecast zone |
| 10 Jul 1998 | Flood | — | — | — | — | — | Forecast zone |
| 14 Jun 1998 | Flood | — | — | — | — | — | Forecast zone |
| 11 Jun 1998 | Flood | — | — | — | — | — | Forecast zone |
| 30 Mar 1998 | Flood | — | — | — | — | — | Forecast zone |
| 2 Sep 1997 | Flood | — | — | — | — | — | Forecast zone |
| 16 Nov 1996 | Flood | — | — | — | — | — | Forecast zone |
| 19 Aug 1996 | Flood | — | — | — | — | — | Forecast zone |
| 19 Aug 1996 | Flash Flood | — | — | — | — | — | County |
| 27 May 1996 | Flood | — | — | — | — | — | Forecast zone |
| 23 May 1996 | Flood | — | — | — | — | — | Forecast zone |
| 14 May 1996 | Flash Flood | — | — | — | — | — | County |
| 14 May 1996 | Flood | — | — | — | — | — | Forecast zone |
| 9 May 1996 | Flood | — | — | — | — | — | Forecast zone |
| 8 May 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Atchison County had?
47 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 Atchison County?
1 Jun 2019 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Atchison County?
The flood of 6 May 2007, with property damage estimated by NCEI at $5.0M and crop damage at $1.0M.
How does Atchison County compare with Missouri for flood?
8.6 events per 100 square miles against 15.7 statewide; the county holds 47 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.