Sac County, Iowa tornadoes

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28confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: August 5, 2023, EFU. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
Use two fingers to move the map
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

The record

At a glance

Total281950 to 2025
Per year0.4average since 1950
Peak monthApril8 of 28
StrongestF4May 27, 1995
Deaths0whole paths, see note
Injuries0whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Sac County.

Seasons

When tornadoes hit here

By month

80 Jan: 0Feb: 0Mar: 1Apr: 8May: 7Jun: 3Jul: 3Aug: 4Sep: 1Oct: 0Nov: 0Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 8 of 28 tornadoes.

By time of day

70 12 AM: 0: 0: 13 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 1: 2: 03 PM: 3: 4: 36 PM: 2: 7: 59 PM: 0: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 7:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 0: 1: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 1: 0: 0: 0: 01970: 0: 0: 0: 0: 0: 0: 0: 0: 1: 01980: 0: 0: 0: 0: 1: 1: 0: 0: 0: 11990: 1: 1: 0: 0: 1: 1: 0: 0: 1: 12000: 0: 0: 0: 0: 0: 0: 0: 1: 0: 02010: 1: 5: 0: 0: 1: 0: 0: 0: 0: 22020: 0: 3: 0: 3: 0: 019501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0
8
EF1
4
EF2
6
EF3
3
EF4
1
Unknown
6

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Strongest

F4, May 27, 1995

36 mile path Longest path

49.2 miles, F2

June 7, 1953, whole path Widest

2,640 yards, EF3

April 9, 2011
Every tornado

All 28 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Aug 5, 2023EFU0.32 mi50 yd00
Aug 5, 2023EF00.9 mi35 yd00
May 13, 2023EFU0.28 mi30 yd00
Dec 15, 2021EF217.6 mi100 yd00
Jul 14, 2021EFU0.77 mi30 yd00
Jul 14, 2021EFU0.6 mi25 yd00
May 29, 2019EFU0.65 mi20 yd00
May 29, 2019EFU1.23 mi30 yd00
Aug 31, 2014EF02.13 mi60 yd00
Apr 9, 2011EF21.6 mi220 yd00
Apr 9, 2011EF329.37 mi2,640 yd00
Apr 9, 2011EF00.63 mi100 yd00
Apr 9, 2011EF28.34 mi660 yd00
Apr 9, 2011EF310.14 mi1,760 yd00
Jun 22, 2010EF00.75 mi30 yd00
Sep 30, 2007EF04.2 mi30 yd00
May 27, 1999F00.1 mi20 yd00
May 15, 1998F00.1 mi30 yd00
May 27, 1995F436 mi400 yd00
Jun 5, 1994F13 mi70 yd00
Apr 26, 1991F37.7 mi150 yd00
Mar 13, 1990F00.3 mi50 yd00
Apr 27, 1989F115 mi60 yd00
Aug 13, 1985F11.5 mi10 yd00
Apr 26, 1984F222 mi200 yd00
Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.