Tornado History
Union Tornado History
This county-level tornado history page focuses on Union, South Carolina. The records below identify 19 tornadoes from 1957 through 2024, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $6.6M, with 1 deaths and 4 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Union, South Carolina
Top local patterns from the historical tornado records in this group.
Average 0.3 tornadoes per year (0.6/yr in last decade)
April is the peak tornado month with 5 recorded events
Deadliest tornado: EF1 in Union, South Carolina with 1 deaths
2017 was the most active year with 3 tornadoes
The 1990s had the most tornado activity (5 events)
Longest tornado: 15.2 miles in Union, South Carolina
Widest tornado: 600.0 yards in Union, South Carolina
Most tornadoes in one day: 3 on Dec 29, 2024
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Union, South Carolina, April is the most active month with 5 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 2017 was the most active year with 3 recorded tornadoes.
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.
Summary: The highest reported property damage year in this group is 1993 with at least $5.0M in NOAA-listed property damage.
Historical Track Sketch
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Union, South Carolina.
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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.
| Date | Rating | Area | Length | Width | Deaths | Injuries | Min. property damage |
|---|---|---|---|---|---|---|---|
| April 15, 1993 | F2 | Union, South Carolina | 6 mi | 600 yd | 0 | 2 | $5.0M |
| April 8, 1957 | F2 | Union, South Carolina | 15.2 mi | 100 yd | 0 | 2 | $25K |
| April 10, 2009 | EF1 | Union, South Carolina | 3.86 mi | 350 yd | 0 | 0 | $400K |
| April 3, 2017 | EF1 | Union, South Carolina | 0.74 mi | 150 yd | 1 | 0 | $50K |
| September 7, 2004 | F1 | Union, South Carolina | 4 mi | 225 yd | 0 | 0 | $50K |
| June 6, 1998 | F1 | Union, South Carolina | 2 mi | 50 yd | 0 | 0 | N/A |
| May 25, 2000 | F1 | Union, South Carolina | 1 mi | 20 yd | 0 | 0 | N/A |
| November 16, 2011 | EF0 | Union, South Carolina | 0.09 mi | 50 yd | 0 | 0 | $1.0M |
| August 17, 1985 | F0 | Union, South Carolina | 3 mi | 30 yd | 0 | 0 | $25K |
| June 4, 1992 | F0 | Union, South Carolina | 0.1 mi | 40 yd | 0 | 0 | $25K |
| October 8, 2017 | EF0 | Union, South Carolina | 0.21 mi | 200 yd | 0 | 0 | $10K |
| June 4, 1992 | F0 | Union, South Carolina | 0.1 mi | 23 yd | 0 | 0 | $2K |
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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.