Tornado History

Union Tornado History

This county-level tornado history page focuses on Union, Pennsylvania. The records below identify 12 tornadoes from 1985 through 2023, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $25.3M, with 2 deaths and 20 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes12
Total Deaths2
Total Injuries20
Property Damage$25.3M
Avg Length1.7 mi
Avg Width242 yd

Key Tornado Facts for Union, Pennsylvania

Top local patterns from the historical tornado records in this group.

Average 0.3 tornadoes per year (0.4/yr in last decade)
July is the peak tornado month with 6 recorded events
Deadliest tornado: F3 in Union, Pennsylvania with 2 deaths
2023 was the most active year with 3 tornadoes
The 1990s had the most tornado activity (3 events)
Longest tornado: 4 miles in Union, Pennsylvania
Widest tornado: 910.0 yards in Union, Pennsylvania
Most tornadoes in one day: 3 on Jul 2, 2023

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Union, Pennsylvania, July is the most active month with 6 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

3210

Summary: 2023 was the most active year with 3 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F3

Summary: EF1 tornadoes are the most common in this group, with 6 recorded events.

Property Damage Trends

Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.

$25.0M$2.5M$250K$0

Summary: The highest reported property damage year in this group is 1985 with at least $25.0M in NOAA-listed property damage.

Historical Track Sketch

F3 May 31, 19851985EF1 April 14, 20192019F1 September 4, 20012001EF1 August 20, 20152015EF1 July 2, 20232023EF1 May 23, 20112011EF1 July 2, 20232023F1 September 27, 19981998EF1 July 2, 20232023EF0 July 11, 20092009F0 July 18, 19971997F0 July 18, 19971997© OpenStreetMap contributors
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Notable Tornado Records

The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
May 31, 1985F3Union, Pennsylvania4 mi910 yd220$25.0M
April 14, 2019EF1Union, Pennsylvania1.45 mi150 yd00$100K
September 4, 2001F1Union, Pennsylvania2 mi300 yd00$60K
August 20, 2015EF1Union, Pennsylvania0.19 mi100 yd00$40K
July 2, 2023EF1Union, Pennsylvania2.12 mi50 yd00$40K
May 23, 2011EF1Union, Pennsylvania0.29 mi100 yd00$25K
July 2, 2023EF1Union, Pennsylvania1.47 mi150 yd00$15K
September 27, 1998F1Union, Pennsylvania2.5 mi400 yd00N/A
July 2, 2023EF1Union, Pennsylvania2.37 mi150 yd00N/A
July 11, 2009EF0Union, Pennsylvania1 mi50 yd00$5K
July 18, 1997F0Union, Pennsylvania1 mi440 yd00N/A
July 18, 1997F0Union, Pennsylvania2.3 mi100 yd00N/A
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Related Location Pages

Source And Limits

Data sourced from NOAA Storm Prediction Center and the NCEI Storm Events Database. TornadoTrace summarizes reported weather events for screening and research; it is not a damage assessment, inspection, or insurance determination. Coordinates and records can be approximate, incomplete, revised, or missing. No warranty of completeness or accuracy.

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