Tornado History
Union Tornado History
This county-level tornado history page focuses on Union, Tennessee. The records below identify 2 tornadoes from 1977 through 2009, including a highest listed rating of F1 (Moderate damage). NOAA damage estimates in this group total at least $250K, with 0 deaths and 0 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Union, Tennessee
Top local patterns from the historical tornado records in this group.
Average 0.1 tornadoes per year (0.0/yr in last decade)
October is the peak tornado month with 1 recorded events
Deadliest tornado: F1 in Union, Tennessee with 0 deaths
1977 was the most active year with 1 tornadoes
The 1970s had the most tornado activity (1 events)
Longest tornado: 4.3 miles in Union, Tennessee
Widest tornado: 440.0 yards in Union, Tennessee
Most tornadoes in one day: 1 on Oct 1, 1977
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Union, Tennessee, October is the most active month with 1 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1977 was the most active year with 1 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 1977 with at least $250K 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, Tennessee.
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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 |
|---|---|---|---|---|---|---|---|
| October 1, 1977 | F1 | Union, Tennessee | 4.3 mi | 440 yd | 0 | 0 | $250K |
| May 8, 2009 | EF0 | Union, Tennessee | 0.78 mi | 20 yd | 0 | 0 | N/A |
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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.