Mahaska County tornado history

28 tornadoes touched Mahaska County, Iowa between 1950 and 2025 — about 0.4 a year. The strongest was rated F4 (Jun 7, 1984). Tornadoes here killed 3 and injured 93 people.

28tornadoes since 1950

F4strongest rating

3killed · 93 injured

134 milongest path · 1984

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

By rating

(E)F07

(E)F113

(E)F26

(E)F31

(E)F41

(E)F50

By month

JFMAMJJASOND

Peak month: May.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Jun 7, 1984	F4	134 mi	250 yd	64	3
Jul 19, 2018	EF3	9.2 mi	800 yd	13	0
Sep 30, 2007	EF2	21.9 mi	1,250 yd	0	0
May 30, 2008	EF2	19.2 mi	900 yd	10	0
Aug 18, 1956	F2	11.5 mi	10 yd	0	0
Jun 27, 1953	F2	7.8 mi	100 yd	1	0
Nov 11, 2015	EF2	6.6 mi	150 yd	0	0
May 25, 1965	F2	2 mi	300 yd	0	0
Nov 11, 2015	EF1	24.6 mi	130 yd	0	0
May 10, 2003	F1	18.5 mi	50 yd	0	0
May 8, 1988	F1	6 mi	40 yd	0	0
Apr 10, 2008	EF1	3 mi	50 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width	Injured
Jul 19, 2018	EF3	9.2 mi	800 yd	13
Jul 19, 2018	EF0	1.2 mi	60 yd	0
Jul 19, 2018	EF0	1.2 mi	60 yd	0
Nov 28, 2016	EF0	4.5 mi	40 yd	0
Nov 11, 2015	EF1	24.6 mi	130 yd	0
Nov 11, 2015	EF2	6.6 mi	150 yd	0
Apr 14, 2012	EF1	1.3 mi	90 yd	0
Jun 20, 2011	EF1	0.3 mi	75 yd	0
May 30, 2008	EF2	19.2 mi	900 yd	10
Apr 10, 2008	EF1	3 mi	50 yd	0
Oct 2, 2007	EF0	3.2 mi	25 yd	0
Oct 2, 2007	EF0	0.5 mi	20 yd	0

Deadliest: Jun 7, 1984, F4, 3 killed.

Nearby counties

Marion County, IA47 Wapello County, IA28 Monroe County, IA15 Keokuk County, IA33 Poweshiek County, IA33 Jasper County, IA47 Iowa County, IA36 Jefferson County, IA13

Questions

How many tornadoes has Mahaska County, Iowa had?

28 tornadoes touched Mahaska County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.4 per year.

What was the strongest tornado in Mahaska County?

The strongest rating recorded was F4 on Jun 7, 1984, with a 134-mile path and 3 deaths.

When is tornado season in Mahaska County?

Most of its tornadoes happened in May (7 of 28). 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).