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

Hail, Wind & Tornado Reports in Union County, PA

Public hail, wind, and tornado reports across Union County, PA from July 25, 1967 through June 6, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 17837 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
14
Wind Reports
131
Tornado Reports
12
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Union County, PA · 1967–present Updated  Daily · last Jun 6, 2026

Latest NWS Hail Reports in Union County

14 reports
Free hail report for your home →
1.50″ hail
May 28, 2019
9:23 PM UTC
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Lewisburg, PA
1.75″ hail
Jul 18, 2016
4:27 PM UTC
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Allenwood, PA
1.00″ hail
May 31, 2015
1:41 PM EST-5
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 N New Columbia, PA
0.75″ hail
Aug 7, 2008
4:05 PM EST-5
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: Penny size hail was reported in Mifflinburg. The hail covered the ground.
NWS Hail Report Location: 1.04 W Mifflinburg, PA
0.75″ hail
Jul 17, 2008
4:46 PM EST-5
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: Penny size hail was reported in Weikert.
NWS Hail Report Location: .69 S Weikert, PA
0.75″ hail
Jun 19, 2007
3:15 PM EST-5
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: NWS employee reported penny sized hail in Mifflinburg.
NWS Hail Report Location: 1.05 W Mifflinburg, PA
1.00″ hail
Jun 19, 2007
3:12 PM EST-5
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: Trained spotter reported quarter sized hail in Mifflinburg.
NWS Hail Report Location: 1.05 W Mifflinburg, PA
0.88″ hail
Nov 6, 2005
5:10 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: Thunderstorms produced nickel size hail /0.88 inch/ in West Milton.
NWS Hail Report Location: 4 N Lewisburg, PA
0.75″ hail
May 13, 2000
4:43 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Lewisburg, PA
1.75″ hail
Jul 30, 1999
4:30 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: New Columbia, PA
0.80″ hail
Jul 30, 1999
4:00 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Allenwood, PA
1.00″ hail
Jul 9, 1999
4:50 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 N Laurelton, PA
0.75″ hail
Jun 12, 1994
2:52 PM EST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: Trees and power lines were reported down.
NWS Hail Report Location: Canton, PA
2.50″ hail
Sep 18, 1991
4:59 PM CST
Hail report for Union County, PA
Union County · 11,467 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, PA
Showing 14 of 14
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 Union County

30 reports
Free hail report + wind check →
UNK mph
Jun 6, 2026
8:35 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Several Trees on Wires.
NWS Wind Report Location: 1 WNW Lewisburg, PA
UNK mph
Jun 6, 2026
8:25 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Several Trees on Wires.
NWS Wind Report Location: Forest Hill, PA
UNK mph
Jun 19, 2025
11:25 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Several trees down on cars in Lewisburg.
NWS Wind Report Location: Lewisburg, PA
UNK mph
Jun 19, 2025
11:25 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Multiple trees down across East Buffalo Township.
NWS Wind Report Location: 1 SSW Linntown, PA
UNK mph
Jun 30, 2024
5:37 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Trees down on wires along Kaiser Run Road.
NWS Wind Report Location: 3 ENE Hartleton, PA
UNK mph
Jun 22, 2024
11:50 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Tree down blocking Route 11/15.
NWS Wind Report Location: 2 N Winfield, PA
UNK mph
Aug 7, 2023
8:10 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Barn destroyed on Amish Rd... several trees down in the area.
NWS Wind Report Location: Winfield, PA
UNK mph
Aug 7, 2023
8:09 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Multiple trees down.
NWS Wind Report Location: 1 W Winfield, PA
UNK mph
Jul 2, 2023
8:30 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Reports of a barn collapse. Time estimated by radar.
NWS Wind Report Location: 2 ENE Vicksburg, PA
UNK mph
Jul 2, 2023
8:25 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Rood off of Just Lite It Fireworks. Time estimated by radar.
NWS Wind Report Location: 1 SW Milton, PA
UNK mph
Jul 2, 2023
8:24 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: RV flipped over and roof off of a flea market. Time estimated by radar.
NWS Wind Report Location: 2 SW Milton, PA
UNK mph
Jun 3, 2023
8:47 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: Multiple trees down... tree limbs on power lines also reported near East Buffalo Township. Time estimated by radar.
NWS Wind Report Location: 1 SSW Linntown, PA
UNK mph
Aug 11, 2021
8:45 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: NUMEROUS REPORTS OF WIRES DOWN IN THE AREA.
NWS Wind Report Location: 2 SSW Sand Bridge State, PA
UNK mph
Jul 14, 2021
1:50 AM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 ENE ALLENWOOD. TREES DOWN IN THE VICINITY OF GREGG AND WHITE DEER TOWNSHIP.
NWS Wind Report Location: 1 ENE Allenwood, PA
UNK mph
Jul 13, 2021
1:50 PM UTC
Wind report for Union County, PA
Union County · 11,467 Homes in County
Wind Report Description: TREES DOWN IN THE VICINITY OF GREGG AND WHITE DEER TOWNSHIP.
NWS Wind Report Location: 1 ENE Allenwood, 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 Union County

12 reports
UNK category
Jul 2, 2023
8:25 PM UTC
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: Corrects previous tornado report from 2 NNE Lewisburg. NWS survey confirms an EF-1 tornado occurred in Union and Northumberland counties... tracking from the north end of Lewisburg to Milton. Tornado caused damage to a fireworks store and flea market along with tree damage. Est max wind speed 100 mph. Length 2.39 mi. Width 150 yds.
NWS Tornado Report Location: 2 NNE Lewisburg, PA
UNK category
Jul 2, 2023
7:59 PM UTC
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: NWS survey confirms an EF-1 tornado occurred in West Buffalo Township... compromising garage doors along with lifting portions of a roof. Est max wind speed 105 mph. Length 2.15 mi. Width 50 yds.
NWS Tornado Report Location: 1 NW Mifflinburg, PA
UNK category
Jul 2, 2023
7:48 PM UTC
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: NWS survey confirms an EF-1 tornado occurred in Lewis Township downing trees... snapping trees and causing damage to buildings. Est max wind 100mph. Length 1.51 mi. Width 150 yds.
NWS Tornado Report Location: 1 E Hartleton, PA
UNK category
Apr 15, 2019
4:35 AM UTC
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: EF-1 TORNADO CONFIRMED IN BUFFALO VALLEY
NWS Tornado Report Location: Buffalo Crossroads, PA
EF1 category
Aug 20, 2015
5:05 PM EST-5
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: An EF1 tornado was confirmed by an NWS survey team just south of Mifflinburg in Union County. A large shed was destroyed and a roof was partially torn off of a barn. Peak winds were estimated at 90 mph, classifying this as an EF1.
NWS Tornado Report Location: .87 NW Dice, PA
EF1 category
May 23, 2011
4:39 PM EST-5
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: The NWS State College confirmed a EF1 tornado in Union County. The tornado touched down around 1739 EDT near Winfield and traveled east across the Susquehanna River approximately 1 1/4 miles before lifting near PA 147 around 1742 EDT in Northumberland County.||The tornado touched down west of 165 Grover Road in Union County. Damage was primarily snapped and uprooted trees. The tornado moved down the hill crossing US-15 and River Breeze Avenue before moving over the Susquehanna River into Northumberland County.||Tree damage along River Breeze road caused damage to two homes, and trees were snapped on the south end of an island near the east shore of the river. The tornado moved through a campground north of Ferry Road, downing and uprooting trees in the camp ground. The trees damaged several camper vans and a pavilion before crossing a field and moving up the hill. Strong southerly inflow ahead of the tornado damaged five homes along Route 147. Leaves plastered to these houses implied strong southerly and easterly winds. Aluminum siding on the southern side of the several houses was dented and the winds blew out the west wall of garage of another house, which had its south facing garage doors left open during the storm. Another home closer to the river also sustained damage to the roof, chimney, and exterior walls. In this same area, utility poles were downed and snapped.||Tree damage and minor damage was sustained by sustained at two homes to the north of the more heavily damaged homes. Throughout the damage swath, most trees fell from southwest to northeast, and fewer fell from the south. Several outbuildings west of Route 147, including one two-story cinder block shed, were destroyed by the tornado. Roofing debris from these outbuildings was found in adjacent properties and in an open field across Route 147. Some of this debris was also found embedded several inches into nearby trees. The tornado dissipated up the hill, perhaps 200 yards east of a power line easement.||There were several eyewitnesses, and most had taken shelter. One eyewitness living near the corner of Route 147 and Ferry Road watched the wind move northward, heard the roar of the storm and watched a white cloud pass to his north over the homes.||The damage indicators were consistent with peak winds around 110 mph. There were no injuries or fatalities.
NWS Tornado Report Location: .63 W Winfield, PA
EF0 category
Jul 11, 2009
4:40 PM EST-5
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: An EF0 tornado, with maximum wind speeds estimated around 75 mph, touched down on the north side of Interstate 80 and moved southeast for approximately one mile. The tornado crossed Interstate 80 before lifting near White Deer Furnace. Damage was minimal with about ten trees and several large branches blown down or uprooted. Eye witnesses, including a Pennsylvania State Trooper, reported broad rotation within the storm and a funnel reaching the ground.
NWS Tornado Report Location: 3.5 W White Deer, PA
F1 category
Sep 4, 2001
12:55 PM EST
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: An F1 tornado touched down in Kelly Township, about 2 NW of Lewisburg on Colonel John Kelly Road. The tornado traveled to the southeast, remaining north of Lewisburg. It crossed Route 15 and eventually the Susquehanna River, crossing into Northumberland County. A Township building in Kelly township was destroyed, with significant damage to a township truck. 13 utility poles were snapped off, in addition to 75 to 100 trees. Winds were estimated to be around 80 mph, classifying the tornado as a weak F1. There were no injuries or deaths.
NWS Tornado Report Location: 2 NW Lewisburg, PA
F1 category
Sep 27, 1998
5:25 PM EST
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: An F1 tornado touched down about 4 miles northwest of New Columbia and moved southeast for about 2.5 miles, taking down trees, damaging a couple of barns, and flattening some corn. The tornado was embedded in a large area of downburst winds, running roughly parallel to Interstate 80 from 8 miles northwest of New Columbia, eastward into White Deer Furnace. Hundreds, even thousands, of trees were downed just south of I-80 on Sugar Valley Narrows and White Deer Pike into White Deer Furnace. Three barns had portions of roofs removed, and the west side of a metal silo was buckled in by the force of the wind. Several small sheds were blown over and one house received damage from falling trees. Some siding from another house was peeled.
NWS Tornado Report Location: New Columbia, PA
F0 category
Jul 18, 1997
4:15 PM EST
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: 40/57/53N, 76/53/31W to 40/57/43N, 76/51/14W. An F0 tornado touched down and crossed Route 15 just a mile north of Lewisburg in Union County. The storm moved southeast across the Susquehanna River crossing Route 45 before lifting a mile south of East Lewisburg in Northumberland County. A number of trees were blown down along the path. A branch from a tree was blown and embedded into the side of a mobile home. Law enforcement officials in Montandon reported sighting a funnel cloud to the west that was obscured by trees.Part of a roof was blown off a house and trees were damaged on the west side of Lewisburg from downburst winds related to the storm.
NWS Tornado Report Location: Lewisburg, PA
F0 category
Jul 18, 1997
3:45 PM EST
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: 41/03/46N, 77/08/05W to 41/02/52N, 77/07/33W. An F0 tornado touched down in a remote part of the northwest corner of Union County, 3 NE of Carrol to 4E of Carrol. The storm moved southeast taking down a number of trees along Zimmerman Rd.
NWS Tornado Report Location: Lewisburg, PA
F3 category
May 31, 1985
7:47 PM CST
Tornado report for Union County, PA
Union County · 11,467 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, PA
Showing 12 of 12
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 Union County on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · County

Union County, PA area census snapshot

People & households
Population42,570
Households14,301
Housing units16,158
Income
Median household income$72,894
$100k+ households41.6%
$150k+ households16.9%
Housing stock
Single-family detached11,467
Attached single-family918
Small multifamily1,698
Large multifamily726
Mobile homes1,326
Housing mix
Single-family share71.0%
Attached-home share5.7%
Multifamily share15%
Mobile-home share8.2%
Ownership & occupancy
Owner-occupied10,218
Renter-occupied4,083
Vacant units1,857
Home value & age
Median home value$222,900
Owner homes $300k+28.7%
Owner homes $500k+7.7%
Owner homes $750k+3.5%
Median year built1973
Older-home share60.0%
Vehicle context
Households with cars12,901
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 Union County

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Union 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 Union County have on record?

Our records show 14 hail, 131 wind, and 12 tornado reports in Union County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 6, 2026.

What is the largest hail ever reported in Union County?

The largest hail size in these storm-report records in Union County is 2.50″. It was reported near Linntown, PA on September 18, 1991.

A storm report showed up near my home in Union 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 Union County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Union 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 Union County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Union 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 Union County address?

Use the address search to pull a free address-level hail report for any property in Union 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 Union County, PA, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Union 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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