135
Recorded events
6
Direct deaths
820
Direct injuries
$63.8M
Property damage
Flash Flood in Comal County, Texas: 135 recorded events between 1997 and 2025. The strongest on record measured 0. That places the county #93 nationally and #15 statewide for this hazard.
Decade by decade
Flash Flood in Comal County, Texas: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Comal County is the 2000s, when 66 of the county's 135 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 Comal County archive, flash flood makes up 32.6% of all recorded severe weather across 6 hazard types. Nationally the county sits at #93 for this hazard and #15 within Texas, putting it in the 97.0 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for flash flood in Comal County with 27 recorded events, while Dec 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 |
|---|---|---|---|---|---|
| Oct 17, 1998 | COUNTYWIDE | 0 | 2 | 800 | $50.0M |
| Oct 30, 2015 | SPRING BRANCH | 0 | 1 | 0 | $0 |
| Oct 31, 2013 | NEW BRAUNFELS | 0 | 1 | 0 | $100K |
| Jun 9, 2010 | NEW BRAUNFELS | 0 | 1 | 0 | $10.0M |
| Mar 12, 2007 | BULVERDE | 0 | 1 | 0 | $0 |
| Nov 15, 2001 | COUNTYWIDE | 0 | 0 | 10 | $80K |
| Jun 22, 1997 | COUNTYWIDE | 0 | 0 | 10 | $2.0M |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jul 5, 2025 | SPRING BRANCH | 0 | $0 |
| Jul 1, 2025 | BULVERDE | 0 | $0 |
| Jun 12, 2025 | BRACKEN | 0 | $0 |
| Jun 12, 2025 | FISCHER | 0 | $0 |
| May 28, 2025 | HONEY CREEK | 0 | $0 |
| May 28, 2025 | ANHOLT | 0 | $0 |
| May 28, 2025 | ANHOLT | 0 | $0 |
| Oct 14, 2021 | NEW BRAUNFELS | 0 | $50K |
| Oct 14, 2021 | SPRING BRANCH | 0 | $0 |
| Aug 2, 2021 | SPRING BRANCH | 0 | $0 |
Other hazards here
More from Comal County
- Hail 179
- Thunderstorm Wind 81
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A storm survey along the Guadalupe River from River Road down into the city of New Braunfels showed devastation along the banks of the river. The river rose some 20+ feet in less than 2 hours sweeping campers, cars, trailers, tubes, and other debris down the river toward New Braunfels and Seguin. Campsites downstream of the 3rd River Road crossing where demolished and swept clean due to the power of water. The campsites along the stretch of River Road near Camp Hueco Springs were especially hit hard as Elm creek flooded and brought tremendous water into the Guadalupe. A death occurred at this location as a man was swept downstream. Other campers were rescued down in New Braunfels after being swept miles downstream. Tubing businesses along the Guadalupe suffered major losses along with homes from Gruene down into Seguin. Thirty vehicles and 14 RVs were removed from the River in Comal County. One hundred twenty-one homes and businesses suffered damage. Damage estimate does not include other insured losses.
Thunderstorms produced heavy rain that led to flash flooding in Comal County. People were evacuated along River Road in New Braunfels, and near Spring Branch, Elm Creek was running 40 to 50 feet wide where it is normally about four feet. The 24 hour rainfall in the River Rd. area ranged from 3.81 to 6.58 inches while in the Spring Branch area there was between 10.40 and 11.75 inches. A man fell into the Guadalupe River near the horseshoe just down from Canyon Dam. The man was trying to retrieve some equipment while the river was quickly rising. The 26 year old drown and his body was recovered a few days later. Portions of River Road just west of New Braunfels became flooded between 1 and 2 am in the morning.
From 1 to 2 inches of rain fell across western Comal County, with up to 5 inches from Spring Branch to Fischer. Widespread flash flooding developed and two cars were washed off FM306. Just before 9 pm CST, a woman and her husband were attempting to cross a low area along FM306 when their vehicle stalled in high water and was carried into Rebecca Creek. As the couple attempted to leave the vehicle, the woman was washed away and drowned. Her body was found the following day.
Quick answers
Frequently asked
How many flash flood events are on record in Comal County, Texas?
135 flash flood events are recorded in Comal County between 1997 and 2025, causing 6 direct deaths.
What is the strongest flash flood recorded in Comal County?
The strongest flash flood on record in Comal County measured 0.
Where does the flash flood data for Comal 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 Comal County, Texas.” Severe Weather History. severeweatherhistory.com/county/texas/comal-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.