Minnesota, 1970

Tornadoes and Hail in Minnesota, July 18, 1970

July 18, 1970 · 10 events in 9 counties and zones

5 thunderstorm wind, 3 tornado, 2 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
7
Property damage
$2.8 million
Crop damage
None recorded
Events
10

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Event by event

5 thunderstorm wind, 3 tornado, 2 hail. Local standard time, as filed.

Hail, Grant

When
July 18, 4:45 PM CST
Where
Grant County
Measured
1.75 in hail
Coordinates
46.080, -96.080

Hail, Grant

When
July 18, 5:08 PM CST
Where
Grant County
Measured
0.75 in hail
Coordinates
45.780, -95.780

Tornado, Douglas

When
July 18, 6:02 PM CST
Where
Douglas County
Rating
F2
Path length
3 mi
Path width
100 yd
Injuries
5 direct, 0 indirect
Property damage
$2.5 million
Coordinates
46.050, -95.350

Thunderstorm Wind, Swift

When
July 18, 6:10 PM CST
Where
Swift County
Coordinates
45.280, -95.580

Thunderstorm Wind, Kandiyohi

When
July 18, 6:45 PM CST
Where
Kandiyohi County
Coordinates
45.080, -95.000

Tornado, Benton

When
July 18, 7:10 PM CST
Where
Benton County
Rating
F2
Path length
2 mi
Path width
33 yd
Property damage
$250,000
Coordinates
45.750, -94.250

Thunderstorm Wind,

When
July 18, 7:17 PM CST
Where
County
Measured
60 kt (69 mph)
Coordinates
45.580, -94.180

Thunderstorm Wind, Carver

When
July 18, 7:55 PM CST
Where
Carver County
Coordinates
44.780, -93.900

Tornado, Anoka

When
July 18, 8:35 PM CST
Where
Anoka County
Rating
F1
Path length
1 mi
Path width
100 yd
Injuries
2 direct, 0 indirect
Property damage
$25,000
Coordinates
45.280, -93.200

Thunderstorm Wind, Olmsted

When
July 18, 11:25 PM CST
Where
Olmsted County
Coordinates
43.880, -92.500

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Minnesota in 1970Every state in 1970This day in weather historyThe tornado archive for Minnesota, 1970

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10052318, 10052319, 10052320, 10052321, 10052322, 10052323, 10052324, 10052325, 10052326, 10052327.