Union County tornado history
3 tornadoes touched Union County, Tennessee between 1950 and 2025 — about 0.0 a year. The strongest was rated F1 (Oct 1, 1977).
3tornadoes since 1950
F1strongest rating
0killed · 0 injured
8.7 milongest path · 1974
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only
By rating
(E)F02
(E)F11
(E)F20
(E)F30
(E)F40
(E)F50
By month
JFMAMJJASOND
Peak month: April.
By decade
’50’60’70’80’90’00’10’20
Strongest tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Oct 1, 1977 | F1 | 4.3 mi | 440 yd | 0 | 0 |
| Apr 4, 1974 | F0 | 8.7 mi | 200 yd | 0 | 0 |
| May 8, 2009 | EF0 | 0.8 mi | 20 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| May 8, 2009 | EF0 | 0.8 mi | 20 yd | 0 | 0 |
| Oct 1, 1977 | F1 | 4.3 mi | 440 yd | 0 | 0 |
| Apr 4, 1974 | F0 | 8.7 mi | 200 yd | 0 | 0 |
Nearby counties
Questions
How many tornadoes has Union County, Tennessee had?
3 tornadoes touched Union County, Tennessee between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.0 per year.
What was the strongest tornado in Union County?
The strongest rating recorded was F1 on Oct 1, 1977, with a 4.3-mile path.
When is tornado season in Union County?
Most of its tornadoes happened in April (1 of 3). Tornadoes can occur in any month, so keep alerts on year-round.
Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).