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Flood in Nowata County, Oklahoma
63 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.
Nowata County, Oklahoma, has 63 flood events in the NCEI record since 1950, with at least one in 22 different years.
May is the busiest month, with 22 of the recorded events. The last 20 years account for 46 events against 17 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.4% of the 4,346 flood events recorded in Oklahoma; its 11.1 per 100 square miles compares with 6.3 statewide.
Compared with Oklahoma
| Measure | Nowata County | Oklahoma | US |
|---|---|---|---|
| Flood events since 1950 | 63 | 4,346 | 183,559 |
| Per 100 square miles | 11.1 | 6.3 | 5.2 |
| Per 10,000 residents | 67.7 | 10.9 | 5.5 |
| Deaths recorded | 0 | 91 | 2,961 |
| Busiest month | May | May | June |
By year
Seasonality
0Feb
1Mar
4Apr
7May
22Jun
16Jul
2Aug
0Sep
3Oct
4Nov
1Dec
3
Recorded events
All 63 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 |
|---|---|---|---|---|---|---|---|
| 26 Jun 2026 | Flash Flood | — | — | — | — | — | County |
| 27 May 2021 | Flash Flood | — | — | — | — | — | County |
| 15 May 2020 | Flood | — | — | — | — | — | County |
| 25 Sep 2019 | Flash Flood | — | — | — | — | — | County |
| 24 Sep 2019 | Flash Flood | — | $10K | — | — | — | County |
| 23 Jun 2019 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2019 | Flood | — | — | — | — | — | County |
| 21 May 2019 | Flash Flood | — | — | — | — | — | County |
| 21 May 2019 | Flood | — | — | — | — | — | County |
| 20 May 2019 | Flash Flood | — | — | — | — | — | County |
| 30 Apr 2019 | Flash Flood | — | — | — | — | — | County |
| 30 Dec 2015 | Flood | — | — | — | — | — | County |
| 28 Dec 2015 | Flood | — | — | — | — | — | County |
| 27 Dec 2015 | Flood | — | — | — | — | — | County |
| 13 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 24 May 2015 | Flood | — | — | — | — | — | County |
| 10 Oct 2014 | Flood | — | — | — | — | — | County |
| 1 Jun 2013 | Flash Flood | — | — | — | — | — | County |
| 1 May 2012 | Flood | — | — | — | — | — | County |
| 30 Apr 2012 | Flash Flood | — | $50K | — | — | — | County |
| 30 Apr 2012 | Flood | — | — | — | — | — | County |
| 20 Mar 2012 | Flash Flood | — | — | — | — | — | County |
| 23 May 2011 | Flash Flood | — | — | — | — | — | County |
| 23 May 2011 | Flash Flood | — | — | — | — | — | County |
| 23 May 2011 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 8 Oct 2009 | Flash Flood | — | — | — | — | — | County |
| 10 Sep 2009 | Flash Flood | — | — | — | — | — | County |
| 1 May 2009 | Flood | — | — | — | — | — | County |
| 1 May 2009 | Flash Flood | — | — | — | — | — | County |
| 29 Apr 2009 | Flood | — | — | — | — | — | County |
| 10 Feb 2009 | Flash Flood | — | — | — | — | — | County |
| 16 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 9 Jun 2008 | Flood | — | — | — | — | — | County |
| 9 Jun 2008 | Flash Flood | — | — | — | — | — | County |
| 27 May 2008 | Flood | — | — | — | — | — | County |
| 26 May 2008 | Flash Flood | — | — | — | — | — | County |
| 7 May 2008 | Flash Flood | — | — | — | — | — | County |
| 23 Apr 2008 | Flash Flood | — | $5K | — | — | — | County |
| 31 Mar 2008 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2007 | Flood | — | $250K | — | — | — | County |
| 29 Jun 2007 | Flood | — | — | — | — | — | County |
| 11 Jun 2007 | Flood | — | — | — | — | — | County |
| 11 Jun 2007 | Flash Flood | — | $100K | — | — | — | County |
| 7 May 2007 | Flood | — | — | — | — | — | County |
| 7 May 2007 | Flash Flood | — | $250K | — | — | — | County |
| 1 Jun 2005 | Flash Flood | — | — | — | — | — | County |
| 4 Mar 2004 | Flash Flood | — | — | — | — | — | County |
| 4 Mar 2004 | Flash Flood | — | $120K | — | — | — | County |
| 30 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 7 May 2002 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 16 Jun 2000 | Flash Flood | — | — | — | — | — | County |
| 9 May 2000 | Flash Flood | — | — | — | — | — | County |
| 8 May 2000 | Flash Flood | — | — | — | — | — | County |
| 8 May 2000 | Flash Flood | — | — | — | — | — | County |
| 20 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 4 May 1999 | Flash Flood | — | — | — | — | — | County |
| 26 Apr 1999 | Flash Flood | — | — | — | — | — | County |
| 25 Apr 1999 | Flash Flood | — | — | — | — | — | County |
| 5 Oct 1998 | Flood | — | — | — | — | — | Forecast zone |
| 5 Oct 1998 | Flash Flood | — | $5K | — | — | — | County |
| 16 Nov 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Nowata County had?
63 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 Nowata County?
26 Jun 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Nowata County?
The flood of 1 Jul 2007, with property damage estimated by NCEI at $250K.
How does Nowata County compare with Oklahoma for flood?
11.1 events per 100 square miles against 6.3 statewide; the county holds 63 of the state's 4,346 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.