72
Recorded events
1
Direct deaths
1
Direct injuries
$13.3M
Property damage
Flash Flood in Sumner County, Tennessee: 72 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #322 nationally and #6 statewide for this hazard.
Decade by decade
Flash Flood in Sumner County, Tennessee: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Sumner County is the 2010s, when 26 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 Sumner County archive, flash flood makes up 9.8% of all recorded severe weather across 8 hazard types. Nationally the county sits at #322 for this hazard and #6 within Tennessee, putting it in the 89.6 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for flash flood in Sumner County with 11 recorded events, while Oct 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 |
|---|---|---|---|---|---|
| Dec 30, 2019 | GALLATIN | 0 | 1 | 0 | $0 |
| May 11, 2016 | MITCHELLVILLE | 0 | 0 | 1 | $3.0M |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jun 16, 2025 | PLEASANT VLY | 0 | $50K |
| Apr 5, 2025 | MITCHELLVILLE | 0 | $0 |
| Apr 3, 2025 | MITCHELLVILLE | 0 | $0 |
| Mar 15, 2025 | WESTMORELAND | 0 | $0 |
| Mar 15, 2025 | BUCK LODGE | 0 | $0 |
| Feb 15, 2025 | MITCHELLVILLE | 0 | $0 |
| Feb 15, 2025 | SHACKLE IS | 0 | $0 |
| Feb 15, 2025 | OCANA | 0 | $0 |
| Jun 30, 2024 | WHITE HOUSE | 0 | $100K |
| May 8, 2024 | LIBERTY | 0 | $2.0M |
Other hazards here
More from Sumner County
- Thunderstorm Wind 425
- Hail 163
- Tornado 45
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Major flash flooding affected northern and central Sumner County, especially the Portland, Oak Grove, and Bethpage areas. Numerous primary and secondary roads were flooded and closed or even washed out, including Highway 52, Highway 259, William Mack Lane, Harper Road, North Corinth Road, Cora Street, Harper Road, Jim Courtney Road, and Airport Road in Portland; Duffer Hollow Road, Rock Bridge Road, Chipman Road, Red Tuttle Road, Rogana Road, Alexander Road, and Rock Springs Road in Bethpage; and Highway 25 at the Bledsoe Creek Bridge in Castalian Springs. Several homes and businesses were flooded, including several homes in the Richland subdivision on William Mack Lane in Portland. At least 12 water rescues from vehicles and homes were conducted across Sumner County, and one 90 year old man that was rescued was reportedly transported to the Portland ER Hospital with hypothermia. The flooding across Sumner County was reportedly the worst since the historic May 2010 floods.
Numerous reports of major flash flooding were received across Sumner County, including Hendersonville. Impassable roads included Stop Thirty Road, Drakes Creek Road, Indian Lake Boulevard, Old Shackle Island Road, and Anderson Road. Life-threatening flash flooding across Sumner County prompted the issuance of a Flash Flood Emergency for the county. Damages are a rough estimate.
Numerous reports of major flash flooding were received across Sumner County, including Gallatin. Impassable roads included Upper Station Creek Road, Liberty Lane, and Long Hollow Pike. Long Hollow Gardens and Long Hollow Golf Course were also reported to be underwater. A house along Long Hollow Gardens was also inundated with flood waters. Life-threatening flash flooding across Sumner County prompted the issuance of a Flash Flood Emergency for the county. Damages are a rough estimate.
Quick answers
Frequently asked
How many flash flood events are on record in Sumner County, Tennessee?
72 flash flood events are recorded in Sumner County between 1996 and 2025, causing 1 direct deaths.
What is the strongest flash flood recorded in Sumner County?
The strongest flash flood on record in Sumner County measured 0.
Where does the flash flood data for Sumner 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 Sumner County, Tennessee.” Severe Weather History. severeweatherhistory.com/county/tennessee/sumner-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.