Tornadoes · United States · South Dakota · 1984

F0 tornado, Jerauld County, South Dakota, June 22, 1984

This F0 tornado ran 0.1 miles across Jerauld County on June 22, 1984, touching down at 5:45 PM CDT and reaching 10 yards wide. It killed nobody.

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 mphthis tornado

    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.

The record

Rating
F0
Date
June 22, 1984
Touchdown
5:45 PM CDT (22:45 UTC)
Path length
0.1 miles (0.2 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
County
Jerauld County
Touchdown point
44.050, -98.650
Record number
654

The surface observations

Huron (HON), 50 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:00 UTC

From the Iowa Environmental Mesonet's archive of airport observations.

This ground now

The live radar over the trackEvery 1984 tornado in South DakotaEvery tornado in South Dakota since 1950Warnings in force in South Dakota nowThe forecast where you are

The other tornadoes of June 22, 1984

21 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 2210:56 AM CDTF0Green, WI1.050$500 to $5,000
June 221:30 PM CDTF1Boone, IL0.6200$5,000 to $50,000
June 223:40 PM CDTF1Bottineau, ND2.520$5,000 to $50,000
June 223:45 PM CDTF0Sedgwick, KS0.850
June 223:55 PM CDTF0Sedgwick, KS0.110
June 225:10 PM CDTF0Ellis, KS0.110
June 226:45 PM CDTF1Cerro Gordo, IA15.077$500,000 to $5 million
June 226:58 PM CDTF0Douglas, SD0.110
June 227:02 PM CDTF0Floyd, IA0.110
June 227:12 PM CDTF0Story, IA0.110
June 227:15 PM CDTF0Douglas, SD7.010
June 227:15 PM CDTF0Douglas, SD0.110
June 227:15 PM CDTF0Butler, IA0.110
June 227:30 PM CDTF0Hand, SD0.110
June 227:55 PM CDTF1Vermilion, IL1.0300$50,000 to $500,000
June 228:00 PM CDTF0Bon Homme, SD0.110
June 228:22 PM CDTF0Benton, IA0.110
June 229:00 PM CDTF0Knox, NE1.020
June 229:15 PM CDTF0Jones, IA0.110
June 229:55 PM CDTF0Cedar, IA0.110
June 2211:00 PM MDTF0Goshen, WY0.510$500,000 to $5 million

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.