Blair storm history
Storm events recorded in Blair, Pennsylvania between 1950 and 2025.
440
Total events
3
Tornadoes
30
Hail
56
Floods
4
Deaths
$5.9M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
Light snow started in the morning and became heavy at times through the afternoon and evening. Snow changed to sleet and then freezing rain/drizzle with a glaze of ice topping storm total snow accumulations between 4 and 8 inches. Two people lost their lives on a snow-covered Sug…
A wildfire developed during the afternoon of November 8, 2024 in Frankstown Township near Canoe Creek State Park in Blair County. The wildfire occurred during a stretch of unseasonably warm and dry weather along with gusty winds, and it quickly expanded in size to around 300 acre…
High Wind High Wind
High winds began during the late morning hours of December 29th and continued into the early morning hours of December 30th with the highest wind gust, measured at 60 mph, being observed at Altoona-Blair County Airport during the afternoon hours of December 29th. Gusty winds cont…
Ice Storm Ice Storm
Freezing rain began across lower elevations of Blair County during the mid-morning hours of December 26th and continued through early morning hours of December 27, 2025. Higher elevations of Blair County experienced a brief snow/freezing rain mix at onset with a transition over t…
Winter Weather Winter Weather
SNOW SQUALL. A snow squall impacted Interstate 99 near the Bald Eagle and Philipsburg exits, where webcams outlined heavy snowfall and very low visibilities below a quarter of a mile within the squall.
Winter Weather Winter Weather
SNOW SQUALL. A snow squall impacted Interstate 99 between Altoona and Bellwood, where webcams showed heavy snow and gusty winds with near-zero visibility during the snow squall.
Winter Weather Winter Weather
SNOW SQUALL. A snow squall impacted portions of Interstate 99 near Tyrone bringing heavy snow and gusty winds that allowed for near-zero visibility within the snow squall. Webcams near Tyrone outlined near-zero visibility with snow beginning to stick on the roadways within the sq…
Strong Wind Strong Wind
Gusty winds ahead of a cold front coupled with showers along the cold front, produced multiple hours of wind gusts between 25 and 40 mph across Blair County. Gusty winds began during the late morning and continued to increase into the evening hours, where a maximum wind gust of 4…
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down multiple trees and wires in the vicinity of Tipton Manor Road in Tipton.
Heat Heat
Well-above average temperatures, coupled with humid conditions, allowed for multiple days of heat index values between 100 and 105 degrees beginning during the afternoon hours of June 23 and continuing through the late evening hours of June 25, 2025 across Blair County. Warm and …
Flash Flood Flash Flood
Flash flooding led to water across the intersection of Plank Road and Route 22 between Duncansville and Hollidaysburg.
Flash Flood Flash Flood
Flash flooding was observed at the intersection of Locke Mountain Road and Reservoir Road in Frankstown Township.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down a tree down on Bellemeade Drive near the intersection of Linwood Road, blocking the roadway north of Altoona.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down a tree and wires down near the intersection of South 22nd Street and Logan Avenue in Altoona.
Flash Flood Flash Flood
Flash flooding and water across the roadway led to the closure of Pleasant Valley Boulevard in Altoona.
Flash Flood Flash Flood
Several reports of flash flooding, flooded roadways, and road closures in Altoona were received.
Flood Flood
Water was reported on the roadway at the intersection of 6th Avenue and Logan Blvd in Altoona.
Thunderstorm Wind Thunderstorm Wind
The ASOS at the Altoona-Blair County Airport measured a 63 mph wind gust as a line of severe thunderstorms moved through on April 29, 2025.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down trees and wires onto Wopsy road near the Wopsononock Lookout.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked a tree down onto a car in Newry. No injuries were reported.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down a large tree and power lines near a residence.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down multiple trees and power lines throughout the city of Altoona. One tree was reported down on a residence on 7th Avenue.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down multiple power poles near Sinking Valley. Three barn roofs were also blown off in the area.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down multiple trees onto a residence approximately 2 miles southwest of Bald Eagle. Mo injuries were reported.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down multiple trees throughout the town of Roaring Springs.
Strong Wind Strong Wind
A gusty shower, producing estimated wind gusts near 50 mph, knocked a powerline down into a household east of Altoona, with no injuries reported.
Thunderstorm Wind Thunderstorm Wind
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 Roa…
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 60 mph knocked a tree down onto Pleasant Valley Boulevard. Additional trees were knocked down onto roadways throughout the city of Altoona.
Hail Hail
A strong thunderstorm produced dime-sized hail in Tipton.
Thunderstorm Wind Thunderstorm Wind
The RWIS station on Interstate 99 at Bellwood measured a 59 mph gust as a line of severe thunderstorms moved through.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing wind gusts estimated at 60 mph knocked trees and wires down onto Golf Course Road and Skelp Mountain Road.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated near 60 mph knocked down trees into wires along Fredrick Road near Martinsburg.
High Wind High Wind
A period of high winds throughout the afternoon and evening hours were observed at Altoona-Blair County Airport, with winds peaking at 59 mph between 5pm and 7pm. A period of strong winds also occurred throughout the early afternoon hours of February 16, 2025 and into the morning…
Cold/Wind Chill Cold/Wind Chill
An extended period of well-below average temperatures across Blair County allowed for wind chills to generally range between -10 to -15 degrees. The lowest wind chill of -19 degrees in Martinsburg occurred in the early morning hours of January 22, 2025.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing wind gusts estimated at 60 mph knocked down trees and wires in the Eldorado neighborhood of Altoona. A lot of the damage was concentrated along 6th avenue and its cross streets.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down and uprooted multiple trees south of Hollidaysburg.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down and uprooted multiple trees along with knocking down multiple powerlines northwest of Claysburg.
Flood Flood
Several consecutive days of rain led to the flooding of Reservoir Road near Frankstown in Blair County on April 3, 2024.
Winter Weather Winter Weather
SNOW SQUALL. A webcam on Interstate 99 near the Plank Road exit in Altoona showed visibility less than a quarter of a mile with heavy snowfall.
Winter Weather Winter Weather
SNOW SQUALL. A PennDOT RWIS station observed a sharp drop in visibility to less than 1/4 mile in a snow squall near Bellwood.
Winter Weather Winter Weather
SNOW SQUALL. A PennDOT RWIS station on Interstate 99 near Bellwood outlined a sharp drop in visibility below 1/4 of a mile with heavy snow lasting approximately 5-10 minutes.
Winter Weather Winter Weather
SNOW SQUALL. Blair County Airport ASOS reported visibility dropping below a quarter of a mile with heavy snowfall and wind gusts between 35 and 40 miles per hour.
High Wind High Wind
A wind gust to 60 mph was recorded at KAOO.
High Wind High Wind
Multiple wind gusts to near 60 mph were observed by the KAOO ASOS during the late morning and early afternoon of January 10, 2024.
High Wind High Wind
A wind gust estimated near 80 mph knocked over a barn and overturned a vehicle inside of the barn along Piney Creek Road near Williamsburg.
Heavy Snow Heavy Snow
A winter storm produced 6 to 7 inches of snowfall across higher elevations of Blair County as snow began in the morning hours of January 9, 2024 and continued into the afternoon.
Heavy Snow Heavy Snow
A winter storm produced 7 to 9 inches of snow across Blair County as snow began in the morning hours of January 6, 2024 and continued through the evening hours.
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 32 | 0 |
| 2024 | 14 | 0 |
| 2023 | 11 | 0 |
| 2022 | 20 | 0 |
| 2021 | 25 | 0 |
| 2020 | 13 | 0 |
| 2019 | 25 | 0 |
| 2018 | 10 | 0 |
| 2017 | 21 | 0 |
| 2016 | 2 | 0 |
| 2015 | 12 | 0 |
| 2014 | 13 | 0 |
| 2013 | 12 | 0 |
| 2012 | 11 | 0 |
| 2011 | 13 | 0 |
| 2010 | 11 | 0 |
| 2009 | 8 | 0 |
| 2008 | 13 | 0 |
| 2007 | 14 | 0 |
| 2006 | 7 | 0 |
| 2005 | 9 | 0 |
| 2004 | 13 | 0 |
| 2003 | 14 | 0 |
| 2002 | 7 | 0 |
| 2001 | 12 | 0 |
| 2000 | 10 | 0 |
| 1999 | 14 | 0 |
| 1998 | 11 | 1 |
| 1997 | 5 | 0 |
| 1996 | 22 | 1 |
| 1995 | 6 | 0 |
| 1993 | 1 | 0 |
| 1992 | 3 | 0 |
| 1991 | 8 | 0 |
| 1990 | 1 | 0 |
| 1988 | 1 | 1 |
| 1986 | 1 | 0 |
| 1985 | 1 | 0 |
| 1983 | 4 | 0 |
| 1982 | 1 | 0 |
| 1980 | 3 | 0 |
| 1977 | 1 | 0 |
| 1976 | 1 | 0 |
| 1974 | 1 | 0 |
| 1970 | 1 | 0 |
| 1966 | 1 | 0 |
| 1960 | 1 | 0 |