Union County tornado history

42 tornadoes touched Union County, Iowa between 1950 and 2025 — about 0.6 a year. The strongest was rated F4 (May 27, 1995).

42tornadoes since 1950
F4strongest rating
0killed · 9 injured
76.5 milongest path · 2001
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F018
(E)F112
(E)F27
(E)F32
(E)F43
(E)F50

By month

JFMAMJJASOND

Peak month: April.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

DateRatingPathWidthInjuredKilled
May 27, 1995F457 mi500 yd20
Apr 8, 1999F456 mi1,250 yd10
May 24, 1989F449 mi1,760 yd00
Apr 11, 2001F376.5 mi500 yd00
Mar 29, 1979F357 mi500 yd40
Apr 14, 2012EF216.6 mi800 yd20
Apr 26, 1964F214.8 mi300 yd00
Apr 26, 2024EF213.9 mi150 yd00
Apr 26, 2024EF29.7 mi350 yd00
Apr 12, 1964F29.4 mi10 yd00
Apr 26, 2024EF26.7 mi130 yd00
Jun 13, 1972F22 mi100 yd00

Most recent tornadoes

DateRatingPathWidthInjuredKilled
Apr 17, 2025EF14.3 mi50 yd00
May 21, 2024EF112.7 mi200 yd00
May 21, 2024EF04 mi75 yd00
Apr 26, 2024EF29.7 mi350 yd00
Apr 26, 2024EF12.9 mi80 yd00
Apr 26, 2024EF213.9 mi150 yd00
Apr 26, 2024EF19.4 mi150 yd00
Apr 26, 2024EF26.7 mi130 yd00
Mar 5, 2022EF02.8 mi100 yd00
Oct 9, 2018EF12.3 mi250 yd00
Apr 27, 2016EF04 mi250 yd00
Nov 11, 2015EF121.8 mi450 yd00

Nearby counties

Ringgold County, IA29Adams County, IA28Clarke County, IA20Adair County, IA34Madison County, IA38Taylor County, IA41Decatur County, IA20Worth County, MO14

Questions

How many tornadoes has Union County, Iowa had?

42 tornadoes touched Union County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.6 per year.

What was the strongest tornado in Union County?

The strongest rating recorded was F4 on May 27, 1995, with a 57-mile path.

When is tornado season in Union County?

Most of its tornadoes happened in April (13 of 42). 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).