Worth County, Iowa tornadoes

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25confirmed tornadoes since NOAA records began in 1950 (the first here in 1952). Most recent: August 5, 2024, EFU. 2026 so far: 1 preliminary report preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(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

Total251950 to 2025
Per year0.3average since 1950
Peak monthAugust7 of 25
StrongestF4May 10, 1953
Deaths0whole paths, see note
Injuries7whole paths, see note

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

Seasons

When tornadoes hit here

By month

70 Jan: 0Feb: 0Mar: 0Apr: 4May: 5Jun: 4Jul: 2Aug: 7Sep: 1Oct: 0Nov: 0Dec: 2JanFebMarAprMayJunJulAugSepOctNovDec

August is the peak month, with 7 of 25 tornadoes.

By time of day

50 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 0: 0: 13 PM: 4: 4: 46 PM: 5: 4: 29 PM: 1: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 6:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

40 1950: 0: 0: 1: 1: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 2: 1: 0: 4: 0: 01970: 0: 1: 0: 0: 1: 0: 0: 0: 0: 01980: 1: 0: 0: 0: 2: 0: 0: 0: 0: 01990: 0: 0: 0: 0: 1: 0: 0: 0: 1: 12000: 0: 0: 0: 0: 0: 0: 0: 0: 2: 02010: 0: 0: 0: 0: 0: 0: 0: 0: 0: 02020: 0: 2: 1: 0: 3: 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. This year so far: 1 preliminary reports.

By rating

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

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 10, 1953

26.6 mile path Longest path

26.6 miles, F4

May 10, 1953, whole path Widest

833 yards, F3

July 12, 1971
Every tornado

All 25 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Aug 5, 2024EFU0.12 mi20 yd00
Aug 5, 2024EFU0.84 mi30 yd00
Aug 5, 2024EFU0.28 mi20 yd00
Apr 12, 2022EF11.19 mi70 yd00
Dec 15, 2021EF02.63 mi50 yd00
Dec 15, 2021EF09.11 mi80 yd00
Jun 7, 2008EF02.12 mi50 yd00
Jun 7, 2008EF01.66 mi75 yd00
Aug 9, 1999F211.5 mi40 yd00
May 15, 1998F12.8 mi50 yd00
Jul 7, 1994F00.1 mi23 yd00
Jun 16, 1984F00.1 mi10 yd00
Jun 16, 1984F00.1 mi10 yd00
Sep 20, 1980F210.2 mi60 yd00
May 28, 1974F33.8 mi150 yd03
Jul 12, 1971F315.4 mi833 yd00
May 7, 1967F00.1 mi200 yd00
Apr 30, 1967F47.6 mi500 yd01
Apr 30, 1967F317.2 mi800 yd00
Apr 30, 1967F413.3 mi400 yd00
Aug 7, 1965F10.1 mi10 yd00
Aug 29, 1964F22 mi100 yd00
Aug 29, 1964F211.2 mi150 yd00
May 10, 1953F426.6 mi10 yd03
May 23, 1952F10.1 mi10 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
May 17, 20261 W JoiceNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

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.