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Union County, Pennsylvania
Tornadoes, hail, floods and severe storms recorded here between 1967 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
12
Tornado reports
15
Hail reports
44
Floods since 1996
296
All events
3
Deaths
$51.9M
Property damage
Tornado paths in Union County
The part of each tornado’s path NOAA recorded in this county, 12 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Roofs were damaged south of Mifflinburg. One fatality occurred when a farmer attempted to secure a barn roof that was being blown off by the winds. Wind gusted to 60 mph at Mifflinburg.(M52OU)
The city of Lewisburg was especially hard hit by the remnants of Hurricane Dennis as up to 8 inches of rain fell in 24 hours, most of it during the early morning hours. Waters rose rapidly in the early morning hours. At least 160 people were displaced from their homes, many of th…
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down multiple trees onto wires near Forest Hill.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down several trees onto wires in Lewisburg.
Winter Weather Winter Weather
Snowfall began in Union County during the early morning hours with the heaviest snowfall falling during the evening hours of February 22nd and into the morning hours of February 23rd. Snowfall amounts in the county ranged generally between from two to four inches; however, a heav…
Heavy Snow Heavy Snow
Heavy snow began in the early morning January 25 and continued into the evening, with most of Union County seeing 8-12 inches of snow.
Excessive Heat Excessive Heat
Well-above average temperatures, coupled with humid conditions, allowed for multiple days of heat index values over 100 degrees beginning during the afternoon hours of June 22nd and continuing through the late evening hours of June 25, 2025 across Union County. Heat index values …
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 60 mph knocked several trees down onto cars in Lewisburg.
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 60 mph knocked multiple trees down across East Buffalo Township.
Cold/Wind Chill Cold/Wind Chill
An extended period of well-below average temperatures across Union County allowed for wind chills to generally range between -10 to -15 degrees across much of the county.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated at 60 mph knocked down trees onto wires along Kaiser Run Road 1 mile north-northeast of Swengel.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree down onto Westbranch Highway 2 miles north of Winfield.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated at 60 mph knocked down multiple trees across roads in Lewisburg.
Winter Weather Winter Weather
A winter weather event produced 3 to 5 inches of snow across Union County from the evening of February 16 into the morning hours of February 17, 2024. As a result, a tractor-trailer slid off of I-80 eastbound and into the median between Mile Run Road and US-15 in White Deer Towns…
Heavy Snow Heavy Snow
A winter storm moving into Union County on the late evening hours of February 12 and into the morning hours of February 13, 2024 brought a brief period of initial rain before producing 6 to 7 inches of snowfall.
Flood Flood
Flooding led to the closing of roads in Lewisburg, as Limestone Run left it's banks in the vicinity of 15th Street and Saint Mary's Street.
Flood Flood
Water flowing across the roadway led to the closure of Route 45 west of Mifflinburg.
Flood Flood
Flooding caused possible damage to the Loomis Street Bridge in Lewisburg.
Flood Flood
Flooding caused possible damage to the a bridge on Turtle Creek Road near in Lewisburg.
Flood Flood
Flooding led to a washed out culvert on Felmey Road near Winfield, closing the road until repairs can be made.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm moved across southern Union County on the afternoon of August 7th, 2023. This thunderstorm caused a swath of straight line wind damage in Union Township just south of State Route 304. Damage began roughly 150 yards south of Route 304 in a wooded area where s…
Tornado EF1 Tornado
A tornado touched down in Lewis Township during the afternoon of July 2, 2023. The tornado touched down just south of Route 45 to the east of Harleton and tracked ENE causing damage to a well-constructed chicken coop along with uplifting a majority of a barn`s roof and spreading …
Tornado EF1 Tornado
A tornado touched down in West Buffalo Township during the afternoon of July 2, 2023. Initial touchdown was in a field just west of Pleasant Grove Road, and the tornado tracked adjacent to Dietrich Road towards Pine Valley Trailer Park where some minor damage was observed to oute…
Tornado EF1 Tornado
A tornado occurred on the north side of Lewisburg in Union County, just south of the Kelly Township Fields. The tornado moved ENE snapping trees before tipping over an RV in a Flea Market, along with blowing away an open structure. The tornado deviated to more of a northeasterly …
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph caused a barn collapse.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires near East Buffalo Township.
A gusty rain shower produced winds estimated near 50 mph, causing the partial collapse of a garage that was under construction on Weikert Road a couple of miles east of the village of Weikert. One injury was reported.
Winter Storm Winter Storm
A winter storm produced 2 to 4 inches of snow, an inch of sleet, and 0.10 to 0.20 of freezing rain across Union County on December 15, 2022.
Winter Storm Winter Storm
A winter storm produced 5 to 7 inches of snow across Union County in less than 12 hours during the morning of March 12, 2022. This snow was accompanied and followed by winds gusting over 40 mph, which caused continued blowing and drifting snow through the day.
Flash Flood Flash Flood
An ice jam on Penns Creek led to the rescue of several people Friday morning in the Millmont area of Union County. No injuries were reported after two people and a dog were rescued from a house surrounded by water of Penns Creek. According to the Mifflinburg Hose Company Facebook…
Winter Weather Winter Weather
A tractor trailer spilled approximately 100 gallons of diesel fuel onto the ground when it went off the roadway on I-80 eastbound at mile marker 210 in White Deer Township.
Ice Storm Ice Storm
An ice storm produced a quarter of an inch of ice accumulation across Union County on January 9, 2022.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph produced several reports of downed wires across western Union County.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated near 60 mph brought down multiple trees in Gregg and White Deer Township.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated near 60 mph brought down multiple trees and wires along Park Rd.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated at 60 mph destroyed an outbuilding on Fairsom Ct in East Buffalo Township.
Winter Weather Winter Weather
SNOW SQUALL. A snow squall on the leading edge of a mesoscale band of heavy snow briefly dropped visibility to under one quarter mile in and produced flash-freeze conditions in Union County.
Ice Storm Ice Storm
An ice storm produced 0.25 inches of ice accumulation across Union County from February 15-16, 2021.
Winter Storm Winter Storm
A winter storm produced 14 to 16 inches of snow across Union County from January 31 to February 2, 2021.
Winter Storm Winter Storm
A winter storm produced 14 to 16 inches of snow across Union County from January 31 to February 2, 2021.
Winter Storm Winter Storm
A winter storm produced 14 to 16 inches of snow across Union County from December 16-17, 2020.
Drought Drought
Portions of Union County were experiencing severe drought conditions as noted on the United States Drought Monitor.
Drought Drought
Portions of Union County were experiencing severe drought conditions as noted on the United States Drought Monitor.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees in West Buffalo Township.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees along Interstate 80 near mile-marker 197.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees in East Buffalo Township south of Linntown.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires west of Lewisburg.
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in West Buffalo Township.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 4 | 0 |
| 2025 | 4 | 0 |
| 2024 | 5 | 0 |
| 2023 | 12 | 3 |
| 2022 | 5 | 0 |
| 2021 | 8 | 0 |
| 2020 | 6 | 0 |
| 2019 | 14 | 1 |
| 2018 | 4 | 0 |
| 2017 | 5 | 0 |
| 2016 | 10 | 0 |
| 2015 | 5 | 1 |
| 2014 | 5 | 0 |
| 2013 | 5 | 0 |
| 2012 | 4 | 0 |
| 2011 | 12 | 1 |
| 2010 | 5 | 0 |
| 2009 | 3 | 1 |
| 2008 | 9 | 0 |
| 2007 | 10 | 0 |
| 2006 | 6 | 0 |
| 2005 | 17 | 0 |
| 2004 | 9 | 0 |
| 2003 | 12 | 0 |
| 2002 | 10 | 0 |
| 2001 | 7 | 1 |
| 2000 | 12 | 0 |
| 1999 | 24 | 0 |
| 1998 | 12 | 1 |
| 1997 | 8 | 2 |
| 1996 | 12 | 0 |
| 1995 | 5 | 0 |
| 1994 | 9 | 0 |
| 1993 | 1 | 0 |
| 1991 | 5 | 0 |
| 1990 | 1 | 0 |
| 1989 | 2 | 0 |
| 1987 | 3 | 0 |
| 1986 | 1 | 0 |
| 1985 | 1 | 1 |
| 1983 | 1 | 0 |
| 1974 | 1 | 0 |
| 1968 | 1 | 0 |
| 1967 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Union County, measured to its path.
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