55
Recorded events
0
Direct deaths
0
Direct injuries
$480K
Property damage
Flash Flood in Greene County, Pennsylvania: 55 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #534 nationally and #30 statewide for this hazard.
Decade by decade
Flash Flood in Greene County, Pennsylvania: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Greene County is the 2000s, when 25 of the county's 55 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 Greene County archive, flash flood makes up 15.4% of all recorded severe weather across 7 hazard types. Nationally the county sits at #534 for this hazard and #30 within Pennsylvania, putting it in the 82.5 percentile of all U.S. counties.
Seasonality
Events by month
Jul is the peak month for flash flood in Greene County with 15 recorded events, while Sep 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
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jul 25, 2025 | RYERSON STATION | 0 | $1K |
| Apr 12, 2024 | RUTAN | 0 | $1K |
| Apr 12, 2024 | ROGERSVILLE | 0 | $1K |
| Apr 12, 2024 | CEYLON | 0 | $1K |
| Apr 12, 2024 | WAYNESBURG | 0 | $0 |
| Apr 12, 2024 | HOLBROOK | 0 | $1K |
| Apr 12, 2024 | MORRISVILLE | 0 | $0 |
| Jul 11, 2019 | BROCK | 0 | $2K |
| Jul 11, 2019 | BROCK | 0 | $3K |
| Jul 29, 2017 | NEWTOWN | 0 | $0 |
Other hazards here
More from Greene County
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Stewart Run caused flooding of roads near Oak Forest. About 3 hours later, flooding from Ten Mile Creek was reported in Waynesburg. Houses and businesses were flooded in Lincoln, Elm, and First streets. Other roads flooded: Routes 19, 21, and 218. At 5 PM, children were stuck inside school since there was only one way out of Waynesburg. They was able to escape after 6:30 PM and went home uninjured. Total of 389 houses and businesses damaged in Waynesburg, Oak Forest, and Rogersville, and throughout Greene County. People at 41 locations had to be evacuated for their own safety.
Quick answers
Frequently asked
How many flash flood events are on record in Greene County, Pennsylvania?
55 flash flood events are recorded in Greene County between 1996 and 2025, causing 0 direct deaths.
What is the strongest flash flood recorded in Greene County?
The strongest flash flood on record in Greene County measured 0.
Where does the flash flood data for Greene 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 Greene County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/greene-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.