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Flood in Bryan County, Oklahoma
33 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.
Bryan County, Oklahoma, has 33 flood events in the NCEI record since 1950, with at least one in 13 different years.
June is the busiest month, with 7 of the recorded events. The last 20 years account for 24 events against 9 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.8% of the 4,346 flood events recorded in Oklahoma; its 3.6 per 100 square miles compares with 6.3 statewide.
Compared with Oklahoma
| Measure | Bryan County | Oklahoma | US |
|---|---|---|---|
| Flood events since 1950 | 33 | 4,346 | 183,559 |
| Per 100 square miles | 3.6 | 6.3 | 5.2 |
| Per 10,000 residents | 7.0 | 10.9 | 5.5 |
| Deaths recorded | 0 | 91 | 2,961 |
| Busiest month | June | May | June |
By year
Seasonality
0Feb
0Mar
2Apr
3May
5Jun
7Jul
7Aug
2Sep
1Oct
2Nov
4Dec
0
Recorded events
All 33 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 |
|---|---|---|---|---|---|---|---|
| 3 Jun 2025 | Flash Flood | — | — | — | — | — | County |
| 29 Aug 2022 | Flash Flood | — | — | — | — | — | County |
| 29 Apr 2021 | Flash Flood | — | — | — | — | — | County |
| 20 Sep 2019 | Flash Flood | — | $5K | — | — | — | County |
| 8 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 8 Jul 2019 | Flash Flood | — | $10K | — | — | — | County |
| 1 May 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Jun 2018 | Flash Flood | — | — | — | — | — | County |
| 6 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 21 Jun 2015 | Flash Flood | — | $80K | — | — | — | County |
| 21 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 21 Jun 2015 | Flash Flood | — | — | — | — | — | County |
| 13 Oct 2012 | Flash Flood | — | $1K | — | — | — | County |
| 11 May 2009 | Flash Flood | — | $50K | — | — | 1 | County |
| 31 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 10 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 18 Jun 2007 | Flash Flood | — | $15K | — | — | — | County |
| 18 Jun 2007 | Flash Flood | — | — | — | — | — | County |
| 30 May 2007 | Flash Flood | — | — | — | — | — | County |
| 27 May 2007 | Flood | — | — | — | — | — | County |
| 7 May 2007 | Flash Flood | — | $10K | — | — | — | County |
| 7 Apr 2002 | Flash Flood | — | — | — | — | — | County |
| 19 Mar 2002 | Flash Flood | — | — | — | — | — | County |
| 18 Mar 2002 | Flash Flood | — | — | — | — | — | County |
| 3 Apr 1999 | Flash Flood | — | $50K | — | — | — | County |
| 7 Nov 1996 | Flash Flood | — | — | — | — | — | County |
| 7 Nov 1996 | Flash Flood | — | — | — | — | — | County |
| 6 Nov 1996 | Flash Flood | — | — | — | — | — | County |
| 6 Nov 1996 | Flash Flood | — | — | — | — | — | County |
| 21 Oct 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Bryan County had?
33 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 Bryan County?
3 Jun 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Bryan County?
The flash flood of 21 Jun 2015, with property damage estimated by NCEI at $80K.
How does Bryan County compare with Oklahoma for flood?
3.6 events per 100 square miles against 6.3 statewide; the county holds 33 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 30 Sep 2026. See the methodology, the Flood hub and the county page.