Enter any address in Sequoyah County, Oklahoma to see its FEMA flood zone
Flash flooding from slow-moving thunderstorms is the dominant flood character in Sequoyah County. Between 2022 and 2025, NOAA Storm Events data recorded 72 flash flood events and 10 general flood events. For example, heavy rainfall caused flash flooding on July 8, 2025, following a slow-moving cluster of thunderstorms. Another flash flood event occurred on May 5, 2022, associated with a strong storm system moving across the Plains.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A experienced 27 claims with an average payout of $22,411 and an average water depth of 2.0 feet. Properties in Zone X, which are typically considered to have a lower flood risk, also had claims, with 10 claims averaging $18,050 and an average water depth of 2.0 feet.
Homeowners in areas designated as Zone A should pay the most attention to flood risk. However, claims in Zone X indicate that flooding can affect properties outside of high-risk areas.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
37 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Sequoyah County, Oklahoma has recorded 82 flood-related events since 1996 according to NOAA's Storm Events Database, including 72 flash floods and 10 river or area floods. The county has received 31 federal disaster declarations, 5 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 |
| Flooding | Flood | May 7, 2019 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Severe Storm | May 7, 2019 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Apr 28, 2017 |
| Severe Winter Storms And Flooding | Severe Storm | Dec 26, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | May 5, 2015 |
| Severe Storms And Flooding | Severe Storm | Apr 21, 2011 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 8, 2025 | 0.00K |
| Flash Flood | Aug 17, 2024 | 0.00K |
| Flood | Jul 14, 2023 | 0.00K |
| Flood | Jun 10, 2022 | 0.00K |
| Flood | Jun 10, 2022 | 50.00K |
| Flash Flood | Jun 10, 2022 | 0.00K |
| Flood | Jun 8, 2022 | 0.00K |
| Flash Flood | Jun 8, 2022 | 0.00K |
| Flood | May 5, 2022 | 0.00K |
| Flash Flood | May 5, 2022 | 0.00K |
Flash Flood — Jul 8, 2025
A slow-moving cluster of thunderstorms developed across portions of eastern Oklahoma during the morning of the 8th, as an upper level disturbance approached the area from the northwest. The atmosphere was unusually moist, which enhanced the rainfall rates from the slow-moving thunderstorms. Locally heavy rainfall resulted in some flash flooding.
Flash Flood — Aug 17, 2024
Scattered strong to severe thunderstorms developed into northeastern Oklahoma during the afternoon of the 16th, and became more widespread across the area during the evening and overnight hours. The atmosphere became very unstable during the late afternoon over eastern Oklahoma, and deep layer wind shear increased over the region during the evening with the approach of an upper level disturbanc...
Flood — Jul 14, 2023
Several clusters of strong to severe thunderstorms moved southeast across portions of eastern Oklahoma during the early morning hours of the 14th. The strongest storms produced damaging wind in Sequoyah County.||Additional thunderstorms intensified and became well-organized over Kansas during the day as they moved southeast across the state. These thunderstorms formed a nearly solid line of str...
Flood — Jun 10, 2022
Two organized lines of thunderstorms moved into eastern Oklahoma during the morning of the 10th, one from the southwest and one from the northwest. The strongest thunderstorms produced damaging wind. Locally heavy rainfall also occurred in some locations, with a swath of three to six inches falling across Muskogee, Sequoyah, and northern Le Flore Counties, which subsequently resulted in some fl...
Flash Flood — Jun 10, 2022
Two organized lines of thunderstorms moved into eastern Oklahoma during the morning of the 10th, one from the southwest and one from the northwest. The strongest thunderstorms produced damaging wind. Locally heavy rainfall also occurred in some locations, with a swath of three to six inches falling across Muskogee, Sequoyah, and northern Le Flore Counties, which subsequently resulted in some fl...
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 Sequoyah 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 Sequoyah 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.