Tornadoes · United States · South Dakota

1985 tornadoes in South Dakota

55 tornadoes touched down in South Dakota in 1985, 115 percent above the average of the record for the state. None of them killed anybody.

1984 1986 The whole country in 1985

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

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

  2. F173 to 112 mph

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

  3. F2113 to 157 mph

    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. F3158 to 206 mph

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

  5. F4207 to 260 mph

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

  6. F5261 to 318 mph

    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.

Every tornado in South Dakota in 1985

April 19 4 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 194:30 PM CSTF1Tripp0.110$500 to $5,000
April 196:15 PM CSTF1Davison15.0400$5,000 to $50,000
April 196:25 PM CSTF0Hutchinson0.110$50 to $500
April 197:13 PM CSTF0Beadle0.110

April 20 8 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 206:00 PM CSTF2Bon Homme3.51,000$50,000 to $500,000
April 206:01 PM CSTF1Bon Homme0.110$5,000 to $50,000
April 206:02 PM CSTF0Yankton2.080
April 206:06 PM CSTF0Yankton0.110
April 206:25 PM CSTF2Yankton10.0440$5,000 to $50,000
April 206:25 PM CSTF0Bon Homme0.110
April 206:40 PM CSTF1Clay0.110$5,000 to $50,000
April 206:45 PM CSTF2Turner12.0440$500,000 to $5 million

May 8 3 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 87:12 PM CDTF0Brown0.110
May 88:10 PM CDTF0Marshall0.110
May 88:30 PM CDTF0Jerauld0.110

May 11 16 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 114:22 PM CDTF0Charles Mix0.110
May 114:30 PM CDTF0Charles Mix0.110
May 115:15 PM CDTF0Douglas20.010
May 115:55 PM CDTF0Hanson15.010
May 116:03 PM CDTF0Davison0.110
May 116:04 PM CDTF0McCook0.110
May 116:04 PM CDTF0Miner4.0100
May 116:08 PM CDTF0McCook0.110
May 116:15 PM CDTF0Miner0.110
May 116:15 PM CDTF0Sanborn0.110
May 116:24 PM CDTF0Douglas0.110
May 116:24 PM CDTF0Sanborn0.110
May 116:46 PM CDTF0Miner5.010
May 116:51 PM CDTF0Miner4.010
May 117:08 PM CDTF0Kingsbury0.110
May 117:40 PM CDTF0Kingsbury0.110

May 28 6 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 288:28 PM CDTF0Lyman0.110
May 288:00 PM MDTF0Pennington0.110
May 289:01 PM MDTF0Pennington0.110
May 2810:35 PM CDTF0Gregory0.110
May 2810:05 PM MDTF0Haakon0.110
May 2812:01 AM CDTF0Buffalo0.110

May 30 2 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 302:37 PM CDTF0Gregory0.110
May 304:10 PM CDTF1Brookings4.010$50 to $500

July 17 3 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 1711:15 AM CDTF0Brown0.210
July 173:30 PM CDTF1Clark0.210$5,000 to $50,000
July 173:45 PM CDTF0Day0.210

July 23 1 tornado

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 237:30 PM MDTF0Dewey0.210

August 3 1 tornado

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 35:05 PM CDTF0Hand0.110

August 11 3 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 116:30 PM MDTF0Pennington0.110
August 116:33 PM MDTF0Pennington0.110
August 116:57 PM MDTF0Pennington0.110

August 12 1 tornado

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 122:30 AM CDTF1Clay20.030$500 to $5,000

August 16 1 tornado

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 168:55 PM CDTF1Faulk0.210$500 to $5,000

August 22 4 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 228:40 PM CDTF0Walworth0.210
August 228:47 PM CDTF0McPherson0.210
August 2210:00 PM CDTF1Hand0.220$500 to $5,000
August 2210:52 PM CDTF0Brown0.210

September 4 2 tornadoes

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
September 46:38 PM CDTF1Gregory3.050$500 to $5,000
September 48:00 PM CDTF0Douglas0.230$500 to $5,000

Nearby

Every tornado in South Dakota since 1950Warnings in force in South DakotaThe live radar over South Dakota

What this means

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.

Sources

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