48
Recorded events
3
Direct deaths
0
Direct injuries
$350.5M
Property damage
Flash Flood in San Jacinto County, Texas: 48 recorded events between 1996 and 2024. The strongest on record measured 0. That places the county #639 nationally and #101 statewide for this hazard.
Decade by decade
Flash Flood in San Jacinto County, Texas: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in San Jacinto County is the 1990s, when 18 of the county's 48 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 San Jacinto County archive, flash flood makes up 21.5% of all recorded severe weather across 6 hazard types. Nationally the county sits at #639 for this hazard and #101 within Texas, putting it in the 78.8 percentile of all U.S. counties.
Seasonality
Events by month
Nov is the peak month for flash flood in San Jacinto County with 11 recorded events, while Mar 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
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| Aug 27, 2017 | LIBERTY HILL | 0 | 3 | 0 | $350.0M |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| May 16, 2024 | NAPIER | 0 | $0 |
| May 16, 2024 | COLDSPRING | 0 | $0 |
| May 2, 2024 | POINTBLANK | 0 | $0 |
| May 2, 2024 | COLDSPRING | 0 | $0 |
| Apr 29, 2024 | COLDSPRING | 0 | $0 |
| Oct 1, 2021 | POINTBLANK | 0 | $0 |
| Aug 27, 2017 | SHEPHERD | 0 | $0 |
| Aug 27, 2017 | LIBERTY HILL | 0 | $350.0M |
| Apr 30, 2016 | URBANA | 0 | $0 |
| May 26, 2015 | EVERGREEN | 0 | $0 |
Other hazards here
More from San Jacinto County
- Thunderstorm Wind 87
- Hail 61
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Slow moving Tropical Storm Harvey produced very heavy rainfall and flooding over portions of San Jacinto County. Major lowland flooding occurred near the Trinity River and areas below Lake Livingston. There was a report of high water closing Marie Street in Shepherd with numerous reports of other flooded roadways around the county. Many roads and homes along the southern end of Lake Livingston were inundated. FM 3278 was inaccessible due to the inundation of flood waters. Major lowland flooding occurred on the Trinity River near Goodrich. Hundreds to thousands of homes received various levels of damage from flooding; from minor to being completely destroyed.There were 3 fatalities, all direct.
Significant flooding in the Shepherd area at Red Road, Drews Landing, Regency Forest, Sherwood Forest, Cherry Creek, and Stringtown Road with road damage reported. Rainfall totals include 8.5" at Camilla, 6.5" at Shepherd, 3.6" at Point Blank, and 3.5" at Evergreen.
Heavy rainfall caused numerous road closures between the towns of Cleveland, Shepherd, and Segno over to areas near Dillardsville. A rainfall total of 9.30 inches was recorded by a cooperative weather observer in the community of Ace.
Quick answers
Frequently asked
How many flash flood events are on record in San Jacinto County, Texas?
48 flash flood events are recorded in San Jacinto County between 1996 and 2024, causing 3 direct deaths.
What is the strongest flash flood recorded in San Jacinto County?
The strongest flash flood on record in San Jacinto County measured 0.
Where does the flash flood data for San Jacinto 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 San Jacinto County, Texas.” Severe Weather History. severeweatherhistory.com/county/texas/san-jacinto-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.