Enter any address in Bryan County, Oklahoma to see its FEMA flood zone
Flash flooding from thunderstorms dominates flood events in Bryan County. Over the past 30 years, the NOAA Storm Events Database recorded 32 flash flood events compared to one general flood event. Recent examples include flash flooding reported on August 29, 2022, and April 29, 2021, following heavy rainfall from thunderstorms.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced a higher frequency of claims and significantly larger average payouts ($43,201) with an average water depth of 16.3 feet. Properties in Zone X have had fewer claims with lower average payouts ($9,865) and an average water depth of 2.2 feet. Homeowners in Zone A, and those located near potential flash flood pathways, should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
8 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Bryan County, Oklahoma has recorded 33 flood-related events since 1996 according to NOAA's Storm Events Database, including 32 flash floods and 1 river or area floods. The county has received 25 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1972–2021)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Severe Ice Storm | Feb 8, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 8, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Apr 30, 2019 |
| Severe Winter Storms And Flooding | Severe Ice Storm | Nov 27, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | May 5, 2015 |
| Severe Winter Storm | Severe Storm | Jan 31, 2011 |
| Severe Winter Storm | Severe Storm | Jan 28, 2010 |
| Severe Winter Storm | Severe Storm | Dec 24, 2009 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 3, 2025 | 0.00K |
| Flash Flood | Aug 29, 2022 | 0.00K |
| Flash Flood | Apr 29, 2021 | 0.00K |
| Flash Flood | Sep 20, 2019 | 5.00K |
| Flash Flood | Jul 8, 2019 | 10.00K |
| Flash Flood | Jul 8, 2019 | 0.00K |
| Flash Flood | May 1, 2019 | 0.00K |
| Flash Flood | Jun 7, 2018 | 0.00K |
| Flash Flood | Aug 6, 2017 | 0.00K |
| Flash Flood | Jun 21, 2015 | 0.00K |
Flash Flood — Jun 3, 2025
Widespread severe thunderstorms, organized along a passing cold front, impacted much of Oklahoma and western-north Texas on the afternoon and evening of the 3rd. In addition to reports and observations of thunderstorm wind damage and large hail, six tornadoes occurred across the WFO Norman Forecast Area. Flash flooding also occurred during the evening hours across southeastern Oklahoma due to r...
Flash Flood — Aug 29, 2022
With the trough lingering over the area, thunderstorms developed once again during the afternoon with wind and hail reported. Heavy rainfall also led to flooding in some areas.
Flash Flood — Apr 29, 2021
Storms continued into the 28th as a slow moving trough approached. Early morning convection produced numerous flood reports. Later in the day, renewed storm development led to an isolated supercell which tracked across southern portions of the OKC metro area with 2-3 diameter hail and damaging winds. Extensive damage was reported with this storm, with the most significant damage concentrated in...
Flash Flood — Sep 20, 2019
Numerous thunderstorms along a stalled outflow boundary produced heavy rainfall and isolated severe wind gusts across southern Oklahoma and adjacent western North Texas on the evening of the 20th.
Flash Flood — Jul 8, 2019
Isolated slow moving storms produced localized flooding on the 8th.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Bryan County, Oklahoma:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Bryan County, Oklahoma that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.