Bremer County, Iowa tornadoes

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29confirmed tornadoes since NOAA records began in 1950 (the first here in 1961). Most recent: July 14, 2021, EF0. 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.

Recent warnings

Recent warnings in Bremer County

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The record

At a glance

Total291950 to 2025
Per year0.4average since 1950
Peak monthJune8 of 29
StrongestF4Sep 1, 1961
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 Bremer County.

Seasons

When tornadoes hit here

By month

80 Jan: 0Feb: 0Mar: 0Apr: 2May: 4Jun: 8Jul: 6Aug: 2Sep: 3Oct: 1Nov: 3Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 8 of 29 tornadoes.

By time of day

50 12 AM: 1: 1: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 0: 012 PM: 0: 1: 33 PM: 4: 4: 26 PM: 5: 4: 19 PM: 2: 0: 112 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

20 1950: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01960: 0: 2: 1: 0: 1: 0: 1: 0: 0: 01970: 1: 1: 0: 2: 0: 2: 0: 2: 0: 01980: 0: 1: 0: 0: 0: 1: 0: 0: 2: 01990: 0: 1: 0: 0: 0: 0: 1: 0: 1: 02000: 0: 2: 0: 0: 0: 0: 0: 0: 0: 02010: 1: 1: 0: 0: 2: 0: 0: 0: 1: 02020: 0: 2: 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. This year so far: 1 preliminary reports.

By rating

EF0
10
EF1
9
EF2
8
EF3
1
EF4
1

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, September 1, 1961

26.6 mile path Longest path

39.4 miles, F3

November 9, 1975, whole path Widest

630 yards, EF2

July 14, 2021
Every tornado

All 29 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jul 14, 2021EF02.5 mi150 yd00
Jul 14, 2021EF212.88 mi630 yd00
Oct 9, 2018EF01.9 mi50 yd00
Aug 31, 2014EF04.98 mi100 yd00
Jun 16, 2014EF02 mi75 yd00
May 22, 2011EF00.1 mi30 yd00
Jun 23, 2010EF10.29 mi35 yd00
Sep 6, 2001F211.5 mi100 yd00
Jun 1, 2001F18.5 mi100 yd00
Jun 27, 1998F225.5 mi80 yd00
Jun 16, 1996F010 mi20 yd00
Jun 14, 1991F00.1 mi13 yd00
Nov 15, 1988F11 mi20 yd00
May 8, 1988F11.5 mi33 yd00
Jul 5, 1985F00.2 mi10 yd00
Apr 10, 1981F20.8 mi100 yd00
Jul 16, 1977F21.9 mi20 yd00
Jun 7, 1977F01 mi20 yd00
Nov 9, 1975F12.7 mi10 yd00
Nov 9, 1975F339.4 mi10 yd00
Jul 2, 1973F130.3 mi10 yd00
Jun 4, 1973F11 mi100 yd00
Jul 12, 1971F20.1 mi100 yd00
Sep 9, 1970F22.3 mi150 yd00
Apr 19, 1966F24.6 mi250 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 7, 20262 N WaverlyNot 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 13, 2026.