Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Harrison County, Texas

83

Recorded events

0

Direct deaths

0

Direct injuries

$441K

Property damage

Flash Flood in Harrison County, Texas: 83 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #249 nationally and #47 statewide for this hazard.

Decade by decade

Flash Flood in Harrison County, Texas: events per decade

Flash Flood in Harrison County, Texas: recorded events per decade
Flash Flood in Harrison County, Texas: recorded events per decade

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

The busiest decade for flash flood in Harrison County is the 2010s, when 29 of the county's 83 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 Harrison County archive, flash flood makes up 9.2% of all recorded severe weather across 8 hazard types. Nationally the county sits at #249 for this hazard and #47 within Texas, putting it in the 91.8 percentile of all U.S. counties.

Seasonality

Events by month

4Jan
1Feb
12Mar
12Apr
22May
5Jun
10Jul
2Aug
2Sep
8Oct
3Nov
2Dec

May is the peak month for flash flood in Harrison County with 22 recorded events, while Feb 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.

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Nov 25, 2025MARSHALL0$0
Jun 11, 2025MARSHALL0$0
Jun 11, 2025HALLSVILLE0$0
May 1, 2025ESTES0$0
May 1, 2025WALKERS MILL0$0
May 1, 2025LONGVIEW HGTS0$0
May 1, 2025ESTES0$0
May 1, 2025LONGVIEW HGTS0$0
May 1, 2025WALKERS MILL0$0
Jun 4, 2024MARSHALL0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Harrison 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 Harrison County, Texas?

83 flash flood events are recorded in Harrison County between 1996 and 2025, causing 0 direct deaths.

What is the strongest flash flood recorded in Harrison County?

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

Where does the flash flood data for Harrison 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 Harrison County, Texas.” Severe Weather History. severeweatherhistory.com/county/texas/harrison-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


Historical reference only — for official alerts visit weather.gov