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NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in Blair County, PA

Public hail, wind, and tornado reports across Blair County, PA from May 21, 1960 through September 2, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 16602 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
31
Wind Reports
256
Tornado Reports
5
Max Hail Size
1.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Blair County, PA · 1960–present Updated  Daily · last Sep 2, 2026

Latest NWS Hail Reports in Blair County

30 reports
Free hail report for your home →
1.00″ hail
Aug 29, 2024
8:30 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: Reported with a picture on social media... hail continued for 5 to 10 minutes.
NWS Hail Report Location: 3 E Claysburg, PA
1.00″ hail
Jul 21, 2023
3:10 AM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: .75 inch to 1 inch Hail fell for 5 minutes during a heavy rain downpour.
NWS Hail Report Location: Bellwood, PA
1.00″ hail
Jun 3, 2023
11:42 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: Spotter reports quarter sized hail in Holidaysburg.
NWS Hail Report Location: Hollidaysburg, PA
1.50″ hail
Jun 3, 2023
11:20 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 E Canoe Creek State P, PA
1.00″ hail
Aug 15, 2019
9:15 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 NE Hollidaysburg, PA
1.00″ hail
May 29, 2019
5:40 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Tyrone, PA
1.00″ hail
May 29, 2019
5:35 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Tyrone, PA
1.00″ hail
May 30, 2017
4:43 PM UTC
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: QUARTER-SIZED HAIL IN THE GREENWOOD NEIGHBORHOOD OF ALTOONA.
NWS Hail Report Location: 2 NE Altoona, PA
1.00″ hail
Jul 14, 2015
3:56 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: Quarter-sized hail reported near Bald Eagle on I-99.
NWS Hail Report Location: 1.32 ESE Bald Eagle, PA
1.00″ hail
Apr 20, 2015
6:01 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .87 NE Canan, PA
1.00″ hail
Apr 20, 2015
5:44 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Bellwood, PA
1.25″ hail
Apr 20, 2015
5:42 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.38 N Altoona, PA
1.25″ hail
Apr 20, 2015
5:41 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.72 ENE Mill Run, PA
1.00″ hail
May 13, 2014
6:00 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: Quarter size hail (1 inch diameter) was reported in the Lakemont section of Altoona.
NWS Hail Report Location: 1.05 E Lakemont, PA
0.75″ hail
May 10, 2013
5:40 PM EST-5
Hail report for Blair County, PA
Blair County · 40,024 Homes in County
Hail Report Description: NWS Employee reported penny-size (0.75 inch) hail in Altoona.
NWS Hail Report Location: 1.72 ENE Mill Run, PA
Showing 15 of 30
Hail Damage Risk for Your Home +

Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.

Pea
0.25″
Low

Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.

Mothball
0.50″
Sub-Severe Watch

Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.

Penny
0.75″
Minor / Watch

Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.

Nickel
0.88″
Minor / Watch

Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.

Quarter
1.00″
Watch

The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.

Half Dollar
1.25″
Watch

More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.

Ping Pong / Walnut
1.50″
Likely

Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.

Golf Ball
1.75″
Likely

Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.

Hen Egg
2.00″
Serious

Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.

Tennis Ball
2.50″
Serious

Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.

Baseball
2.75″
Major

Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.

Tea Cup / Large Apple
3.00″
Major

Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.

Softball
4.00″
Extreme

Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.

Grapefruit
4.50″
Extreme

Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.

Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.

Latest NWS Wind Reports in Blair County

30 reports
Free hail report + wind check →
UNK mph
Sep 2, 2026
3:18 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down across West Allegheny Street at the 428 block.
NWS Wind Report Location: Martinsburg, PA
UNK mph
Sep 2, 2026
3:10 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Large tree down partially blocking roadway at the intersection of Carson Valley Road and Mile Hill Road.
NWS Wind Report Location: 3 Ssw Horseshoe Curve, PA
UNK mph
Aug 22, 2026
11:45 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Large tree down on Route 22 near the base of Short Mountain.
NWS Wind Report Location: 3 Wnw Williamsburg, PA
UNK mph
Aug 22, 2026
11:19 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Trees and wires down by Arlene Ln and Herr Ln.
NWS Wind Report Location: 2 N Duncansville, PA
UNK mph
Aug 16, 2026
9:42 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree on wires. Wires down.
NWS Wind Report Location: Roaring Spring, PA
UNK mph
Jul 19, 2026
12:41 AM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down on a house between Elberta and Altoona.
NWS Wind Report Location: 2 Nne Canoe Creek State, PA
UNK mph
Jul 19, 2026
12:32 AM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down into a house on the 300 block of Vanscoyoc Hollow Road.
NWS Wind Report Location: 2 Wsw Bald Eagle, PA
UNK mph
Jul 19, 2026
12:30 AM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Trees down blocking Cooks Hollow Rd.
NWS Wind Report Location: 2 N Tyrone, PA
UNK mph
Jul 4, 2026
10:25 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down blocking RR tracks S Eagle Valley Rd Between Bald Eagle and Tyrone.
NWS Wind Report Location: 3 SW Bald Eagle, PA
UNK mph
Jul 4, 2026
10:11 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down on S Lincoln St.
NWS Wind Report Location: Tyrone, PA
UNK mph
Jun 15, 2026
12:24 AM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Multiple trees down in Freedom Township.
NWS Wind Report Location: 2 N Ski Gap, PA
UNK mph
Jun 11, 2026
9:32 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Trees and wires down on Juniata River Road in Woodbury Township.
NWS Wind Report Location: 1 WNW Williamsburg, PA
UNK mph
Jun 11, 2026
9:23 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down on Plank Rd.
NWS Wind Report Location: 2 NNW Hollidaysburg, PA
UNK mph
Jun 11, 2026
9:17 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree down on Carson Valley Rd.
NWS Wind Report Location: 3 NW Duncansville, PA
UNK mph
Jun 11, 2026
9:15 PM UTC
Wind report for Blair County, PA
Blair County · 40,024 Homes in County
Wind Report Description: Tree fell on wires near intersection of Davis Road and Gwin Road. Time estimated by radar.
NWS Wind Report Location: 3 NNW Altoona, PA
Showing 15 of 30
Wind Damage Risk for Your Home +

Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.

Below Severe
Under 58 mph
Minor

Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.

Severe
58–74 mph
Watch

Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.

Damaging
75–90 mph
Serious

Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.

Extreme
90+ mph
Major

Can cause major roof covering loss, tree damage, broken windows, and structural damage.

Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.

Latest NWS Tornado Reports in Blair County

5 reports
UNK category
Jul 19, 2026
12:29 AM UTC
Tornado report for Blair County, PA
Blair County · 40,024 Homes in County
Tornado Report Description: EF-0 tornado confirmed along and south of Vanscoyoc Hollow Rd through Camp Anderson. Pockets of tree damage observed with a convergent pattern.
NWS Tornado Report Location: 3 W Bald Eagle, PA
UNK category
Aug 29, 2024
8:17 PM UTC
Tornado report for Blair County, PA
Blair County · 40,024 Homes in County
Tornado Report Description: An EF1 Tornado was confirmed south-southwest of Roaring Spring. Estimated maximum wind speed 95 mph with a path length of 0.81 miles. Width estimated to be 100 yards.
NWS Tornado Report Location: 1 SSW Roaring Spring, PA
F1 category
Jun 2, 1998
6:50 PM EST
Tornado report for Blair County, PA
Blair County · 40,024 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Tyrone, PA
F1 category
Jul 19, 1996
11:10 AM EST
Tornado report for Blair County, PA
Blair County · 40,024 Homes in County
Tornado Report Description: Shortly after 11:00 a.m. EST, an F1 tornado touched down northeast of Altoona approximately 1 mile northwest of Sickles Corner on Brush Mountain. This tornado moved southeast taking down a swath of trees and causing minor damage to homes along a 1.5 mile path before ending one half mile southeast of Sickles Corner. The path width averaged about one half mile wide. This storm was the fourth in the family of tornadoes that had crossed Clarion, Jefferson, Indiana, Clearfield and Cambria counties.
NWS Tornado Report Location: NW Sickles Corner, PA
F1 category
Nov 5, 1988
12:35 PM EST
Tornado report for Blair County, PA
Blair County · 40,024 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, PA
Showing 5 of 5
Tornado Damage Risk for Your Home +

After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.

EF0
65–85 mph
Light

Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.

EF1
86–110 mph
Moderate

Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.

EF2
111–135 mph
Serious

Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.

EF3–EF5
136+ mph
Severe

Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.

Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.

NWS Hail, Wind and Tornado Reports in Blair County on the Interactive Map

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Wind
Tornado

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Browse Cities with NWS Storm Reports in Blair County

Altoona, PA 54
Hail, wind & tornado reports
Martinsburg, PA 24
Hail, wind & tornado reports
Tyrone, PA 21
Hail, wind & tornado reports
Bellwood, PA 16
Hail, wind & tornado reports
Hollidaysburg, PA 15
Hail, wind & tornado reports
Mill Run, PA 15
Hail, wind & tornado reports
Roaring Spring, PA 15
Hail, wind & tornado reports
Tipton, PA 10
Hail, wind & tornado reports
Williamsburg, PA 10
Hail, wind & tornado reports
Duncansville, PA 9
Hail, wind & tornado reports
Claysburg, PA 8
Hail, wind & tornado reports
Bald Eagle, PA 6
Hail, wind & tornado reports
Lakemont, PA 6
Hail, wind & tornado reports
Fort Fetter, PA 5
Hail, wind & tornado reports
Juniata Gap, PA 5
Hail, wind & tornado reports
Newry, PA 5
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Blair County, PA area census snapshot

People & households
Population121,854
Households50,548
Housing units55,788
Income
Median household income$60,594
$100k+ households36.8%
$150k+ households13.3%
Housing stock
Single-family detached40,024
Attached single-family2,297
Small multifamily6,059
Large multifamily3,629
Mobile homes3,773
Housing mix
Single-family share71.7%
Attached-home share4.1%
Multifamily share17.4%
Mobile-home share6.8%
Ownership & occupancy
Owner-occupied36,621
Renter-occupied13,927
Vacant units5,240
Home value & age
Median home value$156,700
Owner homes $300k+14.5%
Owner homes $500k+3.2%
Owner homes $750k+1.2%
Median year built1957
Older-home share75.8%
Vehicle context
Households with cars46,285
Free hail maps

This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.

Top ZIP Codes with NWS Storm Reports in Blair County

16602 63
Altoona, PA Hail, wind & tornado reports
16686 52
Tyrone, PA Hail, wind & tornado reports
16601 35
Altoona, PA Hail, wind & tornado reports
16648 35
Hollidaysburg, PA Hail, wind & tornado reports
16662 29
Martinsburg, PA Hail, wind & tornado reports
16635 21
Penn Farms, PA Hail, wind & tornado reports
16673 20
Roaring Spring, PA Hail, wind & tornado reports
16693 16
Yellow Springs, PA Hail, wind & tornado reports
16625 13
Claysburg, PA Hail, wind & tornado reports
15946 11
Spring Hill, PA Hail, wind & tornado reports
16613 10
Ashville, PA Hail, wind & tornado reports
16637 10
East Freedom, PA Hail, wind & tornado reports
16617 8
Bellwood, PA Hail, wind & tornado reports
16655 6
PA Hail, wind & tornado reports
16641 3
Gallitzin, PA Hail, wind & tornado reports
16636 2
Wopsononock, PA Hail, wind & tornado reports
16682 1
Claysburg, PA Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Blair County? Ask a local pro for a Remote Hail Inspection. They can review hail activity for your property and help you decide whether an in-person roof or exterior inspection makes sense.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does Blair County have on record?

Our records show 31 hail, 256 wind, and 5 tornado reports in Blair County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 2, 2026.

What is the largest hail ever reported in Blair County?

The largest hail size in these storm-report records in Blair County is 1.50″. It was reported near Canoe Creek State P, PA on June 3, 2023.

A storm report showed up near my home in Blair County — does that mean my roof is damaged?

Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Blair County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Blair County — why should I look at its storm history?

Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Blair County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Blair County — how does this help me?

Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.

How do I check hail history for a specific Blair County address?

Use the address search to pull a free address-level hail report for any property in Blair County — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.

Where does this storm report data come from, and what are its limits?

Storm reports on this page are public reports from storm events across Blair County, PA, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Blair County, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.

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