Tornadoes in Freeborn County, Minnesota

1. F0 / EF040 to 72 mph on the F scale, 65 to 85 mph on the EF scale

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. F1 / EF173 to 112 mph on the F scale, 86 to 110 mph on the EF scale

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. F2 / EF2113 to 157 mph on the F scale, 111 to 135 mph on the EF scale

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. F3 / EF3158 to 206 mph on the F scale, 136 to 165 mph on the EF scale

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. F4 / EF4207 to 260 mph on the F scale, 166 to 200 mph on the EF scale

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. F5 / EF5261 to 318 mph on the F scale, over 200 mph on the EF scale

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unrated

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Tornadoes

72

Deaths

20

Injuries

115

F4 and above

4

Worst on record

F4, April 30, 1967

1. F4, Freeborn and Waseca counties, MinnesotaApril 30, 19676 killed, 22 injured
2. F2, Freeborn County, MinnesotaMay 10, 19536 killed, 3 injured
3. F4, Freeborn and Steele counties, MinnesotaApril 30, 19675 killed, 35 injured
4. F3, Freeborn and Waseca counties, MinnesotaApril 30, 19672 killed, 23 injured
5. EF4 Conger–Albert Lea tornado, MinnesotaJune 17, 20101 killed, 14 injured

1. F4, Freeborn and Steele counties, MinnesotaApril 30, 1967F4, 38.7 mi (62 km)
2. F4, Freeborn and Waseca counties, MinnesotaApril 30, 1967F4, 20.1 mi (32 km)
3. EF4 Conger–Albert Lea tornado, MinnesotaJune 17, 2010EF4, 16.9 mi (27 km)
4. F4, Worth and Freeborn counties, Iowa and MinnesotaApril 30, 1967F4, 7.6 mi (12 km)
5. F3, Freeborn and Steele counties, MinnesotaMay 17, 1982F3, 46.0 mi (74 km)
6. F3, Freeborn and Waseca counties, MinnesotaApril 30, 1967F3, 18.4 mi (30 km)
7. EF3, Freeborn and Steele counties, MinnesotaJune 17, 2010EF3, 18.1 mi (29 km)
8. F3, Freeborn County, MinnesotaJune 7, 1984F3, 14.0 mi (23 km)
9. EF3, Freeborn County, MinnesotaJune 17, 2010EF3, 5.0 mi (8 km)
10. F2, Freeborn County, MinnesotaMay 1, 2001F2, 7.0 mi (11 km)

Warnings in force in Freeborn CountyThe forecast for Freeborn CountyThe live radar over Freeborn CountyEvery county in Minnesota

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.