Iosco County, Michigan tornadoes

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13confirmed tornadoes since NOAA records began in 1950 (the first here in 1953). Most recent: June 17, 2014, EF1. 2026 so far: 0 preliminary reports 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.

Recent warnings

Recent warnings in Iosco County

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The record

At a glance

Total131950 to 2025
Per year0.2average since 1950
Peak monthJune6 of 13
StrongestF3Mar 27, 1991
Deaths4whole paths, see note
Injuries14whole paths, see note

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

Seasons

When tornadoes hit here

By month

60 Jan: 0Feb: 0Mar: 3Apr: 0May: 1Jun: 6Jul: 0Aug: 3Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 6 of 13 tornadoes.

By time of day

30 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 1: 0: 012 PM: 0: 1: 33 PM: 3: 1: 26 PM: 2: 0: 09 PM: 0: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 2:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

20 1950: 0: 0: 0: 1: 0: 0: 0: 0: 0: 01960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 0: 0: 0: 0: 1: 2: 0: 01980: 0: 1: 2: 1: 0: 0: 0: 0: 0: 01990: 0: 2: 1: 0: 0: 0: 0: 0: 0: 02000: 0: 0: 0: 0: 0: 0: 0: 0: 0: 02010: 0: 1: 0: 0: 1: 0: 0: 0: 0: 02020: 0: 0: 0: 0: 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
3
EF1
7
EF2
1
EF3
2

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

Deadliest

F2, June 8, 1953

4 deaths, 13 injuries Strongest

F3, March 27, 1991

35 mile path Longest path

35 miles, F3

March 27, 1991, whole path Widest

833 yards, F2

June 8, 1953
Every tornado

All 13 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jun 17, 2014EF11.58 mi100 yd00
Aug 7, 2011EF00.18 mi50 yd00
Jun 17, 1992F11 mi20 yd00
Mar 27, 1991F321 mi100 yd00
Mar 27, 1991F335 mi100 yd00
May 19, 1983F00.1 mi10 yd00
Jun 22, 1982F00.2 mi10 yd00
Jun 20, 1982F19 mi70 yd01
Jun 29, 1981F15.6 mi33 yd00
Aug 31, 1977F11.9 mi100 yd00
Aug 5, 1977F13.3 mi70 yd00
Mar 30, 1976F12.5 mi83 yd00
Jun 8, 1953F216.6 mi833 yd413
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 13, 2026.