Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Sequoyah County, Oklahoma

72

Recorded events

2

Direct deaths

0

Direct injuries

$1.7M

Property damage

Flash Flood in Sequoyah County, Oklahoma: 72 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #322 nationally and #12 statewide for this hazard.

Decade by decade

Flash Flood in Sequoyah County, Oklahoma: events per decade

Flash Flood in Sequoyah County, Oklahoma: recorded events per decade
Flash Flood in Sequoyah County, Oklahoma: recorded events per decade

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Sequoyah County is the 2010s, when 31 of the county's 72 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Sequoyah County archive, flash flood makes up 10.2% of all recorded severe weather across 6 hazard types. Nationally the county sits at #322 for this hazard and #12 within Oklahoma, putting it in the 89.6 percentile of all U.S. counties.

Seasonality

Events by month

0Jan
2Feb
3Mar
8Apr
26May
11Jun
5Jul
7Aug
7Sep
1Oct
2Nov
0Dec

May is the peak month for flash flood in Sequoyah County with 26 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Apr 24, 2004NORTHEAST PORTION020$0
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Jul 8, 2025SALLISAW0$0
Aug 17, 2024VIAN0$0
Jun 10, 2022SALLISAW0$0
Jun 10, 2022SALLISAW0$0
Jun 8, 2022GORE0$0
May 5, 2022VIAN0$0
Aug 17, 2021VIAN0$25K
Aug 17, 2021VIAN0$0
May 28, 2021SALLISAW0$0
May 28, 2021VIAN0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Sequoyah County

County overview →

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

How many flash flood events are on record in Sequoyah County, Oklahoma?

72 flash flood events are recorded in Sequoyah County between 1996 and 2025, causing 2 direct deaths.

What is the strongest flash flood recorded in Sequoyah County?

The strongest flash flood on record in Sequoyah County measured 0.

Where does the flash flood data for Sequoyah County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.

Cite this page

“Flash Flood in Sequoyah County, Oklahoma.” Severe Weather History. severeweatherhistory.com/county/oklahoma/sequoyah-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


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