348
Recorded events
0
Direct deaths
2
Direct injuries
$5.6M
Property damage
Thunderstorm Wind in Armstrong County, Pennsylvania: 348 recorded events between 1968 and 2025. The strongest on record measured 85. That places the county #310 nationally and #27 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Armstrong County, Pennsylvania: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Armstrong County is the 2010s, when 120 of the county's 348 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 Armstrong County archive, thunderstorm wind makes up 68.2% of all recorded severe weather across 8 hazard types. Nationally the county sits at #310 for this hazard and #27 within Pennsylvania, putting it in the 90.2 percentile of all U.S. counties.
Seasonality
Events by month
Jun is the peak month for thunderstorm wind in Armstrong County with 106 recorded events, while Jan 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 |
|---|---|---|---|---|---|
| Jul 17, 2021 | ALADDIN | 50 | 0 | 1 | $0 |
| Jun 2, 1999 | ELDERTON | 85 | 0 | 1 | $250K |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Jun 28, 2025 | KELLY STATION | 50 | $3K |
| Jun 18, 2025 | CENTER HILL | 50 | $3K |
| May 2, 2025 | YATESBORO | 50 | $1K |
| Apr 29, 2025 | ELDERTON | 60 | $5K |
| Apr 29, 2025 | SCHENLEY | 55 | $1K |
| Mar 16, 2025 | RURAL VLY | 60 | $10K |
| Mar 16, 2025 | DIME | 50 | $2K |
| Mar 16, 2025 | CHRISTY MANOR | 50 | $5K |
| Mar 16, 2025 | ROSSTON | 50 | $5K |
| Mar 16, 2025 | KISKIMERE | 78 | $20K |
Other hazards here
More from Armstrong County
- Hail 72
- Flash Flood 51
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A microburst with winds estimated to around 100 MPH blew a 3-mile long swath across the Elderton area. One house was completely destroyed, with one person receiving minor injuries. Four other homes suffered structural damage, and another ten homes in the area received minor damage. Two cars were also damaged. Most of the affected homes were in the area off Route 210 just northeast of Elderton, near the Keystone Dam. A few homes on the outskirts of Atwood also reported minor damage. Numerous trees in the area were blown down, either uprooted or snapped off.
A stronger microburst struck Sugarcreek and West Franklin townships, near Cowansville, between 115 AM and 130 AM EDT on the 31st. Numerous trees were toppled and large branches snapped off. Several buildings had structural damage. At a construction company, 2 cinder block walls were blown down. Part of a roof blown off another building. Minor damage to several houses near the construction company. Several sheds were destroyed. A camper was overturned. Microburst was 300 yards wide and three quarters of a mile in length. Maximum wind estimated 90 mph (78 kts). (KATRINA)
Trees and powerlines were downed from Kittanning through South Buffalo Township along Route 28. At Kittanning, a tree fell on two parked cars. Between Slate Lick and Boggsville, a 300 to 400 foot area of trees were downed. Part of a barn roof and a shed were damaged.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Armstrong County, Pennsylvania?
348 thunderstorm wind events are recorded in Armstrong County between 1968 and 2025, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Armstrong County?
The strongest thunderstorm wind on record in Armstrong County measured 85.
Where does the thunderstorm wind data for Armstrong 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
“Thunderstorm Wind in Armstrong County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/armstrong-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.