223
Recorded events
0
Direct deaths
0
Direct injuries
$797K
Property damage
Thunderstorm Wind in Blair County, Pennsylvania: 223 recorded events between 1960 and 2026. The strongest on record measured 87. That places the county #854 nationally and #49 statewide for this hazard.
Decade by decade
Thunderstorm Wind in Blair County, Pennsylvania: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for thunderstorm wind in Blair County is the 2010s, when 72 of the county's 223 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 Blair County archive, thunderstorm wind makes up 73.4% of all recorded severe weather across 6 hazard types. Nationally the county sits at #854 for this hazard and #49 within Pennsylvania, putting it in the 72.8 percentile of all U.S. counties.
Seasonality
Events by month
Jul is the peak month for thunderstorm wind in Blair County with 60 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.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Mar 11, 2026 | (AOO)BLAIR CO ARPT A | 52 | $0 |
| Mar 11, 2026 | SPROUL | 52 | $5K |
| Jul 26, 2025 | ALTOONA PETERSON ARP | 52 | $4K |
| Jun 9, 2025 | ALTOONA | 52 | $3K |
| Jun 9, 2025 | PINECROFT | 52 | $1K |
| Apr 29, 2025 | (AOO)BLAIR CO ARPT A | 55 | $0 |
| Apr 29, 2025 | VAIL | 61 | $25K |
| Apr 29, 2025 | EAST SHARPSBURG | 61 | $10K |
| Apr 29, 2025 | SICKLES CORNER | 61 | $40K |
| Apr 29, 2025 | ALTOONA | 61 | $10K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
An NWS Storm Survey confirmed a downburst in Scotch Valley on March 16, 2025 as a line of severe thunderstorms moved through. Maximum winds were estimated at 100 mph with damage occurring along a 4.5 mile long path. Dozens of trees were uprooted or snapped along Scotch Valley Road and porch roofs were blown off. Significant structural damage to a barn was also reported. The damage path widened to around 1.6 miles as it neared the end of the track.
A severe thunderstorm produced a microburst with winds estimated by a NWS Storm Survey to have been between 80 and 90 mph just to the east of Lake Altoona. Trees were snapped and uprooted in a relatively small area near Lakeside Drive.
A thunderstorm producing winds estimated near 45 mph knocked down a tree onto wires and a car at Route 22 and Drass Lane to the west of Williamsburg. A nearby ASOS at KAOO reported a gust to 45mph, and this was the estimate given to this report.
Quick answers
Frequently asked
How many thunderstorm wind events are on record in Blair County, Pennsylvania?
223 thunderstorm wind events are recorded in Blair County between 1960 and 2026, causing 0 direct deaths.
What is the strongest thunderstorm wind recorded in Blair County?
The strongest thunderstorm wind on record in Blair County measured 87.
Where does the thunderstorm wind data for Blair 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 Blair County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/blair-county/thunderstorm-wind/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.