Harrison County tornado history

35 tornadoes touched Harrison County, Iowa between 1950 and 2025 — about 0.5 a year. The strongest was rated EF4 (Apr 26, 2024). Tornadoes here killed 7 and injured 76 people.

35tornadoes since 1950

EF4strongest rating

7killed · 76 injured

40.3 milongest path · 2024

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F011

(E)F110

(E)F26

(E)F36

(E)F41

(E)F50

unrated1

By month

JFMAMJJASOND

Peak month: June.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Apr 26, 2024	EF4	31.9 mi	1,900 yd	4	0
Jun 11, 2008	EF3	13 mi	440 yd	48	4
May 16, 1999	F3	7.5 mi	440 yd	16	2
Apr 26, 2024	EF3	40.3 mi	1,900 yd	3	1
Jun 16, 1992	F3	26 mi	200 yd	3	0
Apr 26, 2024	EF3	19.1 mi	550 yd	0	0
May 16, 1999	F3	6.2 mi	200 yd	0	0
May 6, 1983	F2	15 mi	20 yd	0	0
May 6, 1975	F2	12.8 mi	500 yd	0	0
May 6, 1975	F2	10.6 mi	10 yd	0	0
Jul 12, 2023	EF2	9.4 mi	100 yd	0	0
Mar 23, 2009	EF2	8.6 mi	440 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width	Injured	Killed
May 24, 2024	EF1	0.7 mi	150 yd	0	0
Apr 26, 2024	EF4	31.9 mi	1,900 yd	4	0
Apr 26, 2024	EF1	9.1 mi	766 yd	0	0
Apr 26, 2024	EF3	19.1 mi	550 yd	0	0
Apr 26, 2024	EF0	2.6 mi	200 yd	0	0
Apr 26, 2024	EF3	40.3 mi	1,900 yd	3	1
Apr 26, 2024	EF1	1.8 mi	30 yd	0	0
Jul 12, 2023	EF2	9.4 mi	100 yd	0	0
Apr 12, 2022	EF1	9.6 mi	140 yd	0	0
Apr 12, 2022	EF0	2.3 mi	200 yd	0	0
Sep 24, 2019	unrated	0.1 mi	25 yd	0	0
Jun 29, 2016	EF0	3.3 mi	25 yd	0	0

Deadliest: Jun 11, 2008, EF3, 4 killed.

Nearby counties

Washington County, NE25 Monona County, IA30 Shelby County, IA31 Pottawattamie County, IA56 Burt County, NE23 Douglas County, NE24 Crawford County, IA45 Sarpy County, NE15

Questions

How many tornadoes has Harrison County, Iowa had?

35 tornadoes touched Harrison County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.5 per year.

What was the strongest tornado in Harrison County?

The strongest rating recorded was EF4 on Apr 26, 2024, with a 31.9-mile path.

When is tornado season in Harrison County?

Most of its tornadoes happened in June (11 of 35). 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).