South Dakota, 1991

Tornadoes and Hail in South Dakota, May 11, 1991

May 11, 1991 · 14 events in 4 counties and zones

7 tornado, 6 hail, 1 thunderstorm wind, 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
25
Property damage
$3.3 million
Crop damage
None recorded
Events
14

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

7 tornado, 6 hail, 1 thunderstorm wind. Local standard time, as filed.

Tornado, Fall River

When
May 11, 6:13 PM CST
Where
Fall River County
Rating
F0
Path length
0.5 mi
Path width
50 yd
Coordinates
43.180, -103.850

Tornado, Fall River

When
May 11, 6:20 PM CST
Where
Fall River County
Rating
F1
Path length
1 mi
Path width
73 yd
Property damage
$250,000
Coordinates
43.270, -103.830

Hail, Custer

When
May 11, 6:26 PM CST
Where
Custer County
Measured
1.75 in hail
Coordinates
43.600, -103.600

Tornado, Fall River

When
May 11, 6:38 PM CST
Where
Fall River County
Rating
F0
Path length
0.7 mi
Path width
50 yd
Coordinates
43.300, -103.900

Hail, Custer

When
May 11, 6:40 PM CST
Where
Custer County
Measured
2.75 in hail
Coordinates
43.770, -103.480

Hail, Meade

When
May 11, 7:00 PM CST
Where
Meade County
Measured
0.75 in hail
Coordinates
44.230, -103.380

Hail, Pennington

When
May 11, 7:15 PM CST
Where
Pennington County
Measured
0.75 in hail
Coordinates
43.900, -103.420

Hail, Pennington

When
May 11, 7:35 PM CST
Where
Pennington County
Measured
1.75 in hail
Coordinates
44.030, -103.280

Thunderstorm Wind, Meade

When
May 11, 7:55 PM CST
Where
Meade County
Measured
60 kt (69 mph)
Coordinates
44.180, -103.350

Tornado, Meade

When
May 11, 8:05 PM CST
Where
Meade County
Rating
F0
Path length
0.5 mi
Path width
50 yd
Coordinates
44.150, -103.100

Tornado, Pennington

When
May 11, 8:10 PM CST
Where
Pennington County
Rating
F1
Path length
0.5 mi
Path width
50 yd
Property damage
$250,000
Coordinates
44.120, -103.220

Tornado, Meade

When
May 11, 8:10 PM CST
Where
Meade County
Rating
F2
Path length
1 mi
Path width
300 yd
Injuries
5 direct, 0 indirect
Property damage
$250,000
Coordinates
44.180, -103.220

Tornado, Meade

When
May 11, 8:10 PM CST
Where
Meade County
Rating
F3
Path length
2 mi
Path width
500 yd
Injuries
20 direct, 0 indirect
Property damage
$2.5 million
Coordinates
44.200, -103.220

Hail, Meade

When
May 11, 8:10 PM CST
Where
Meade County
Measured
0.75 in hail
Coordinates
44.270, -103.470

What these are

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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 South Dakota in 1991Every state in 1991This day in weather historyThe tornado archive for South Dakota, 1991Warnings in South Dakota, May 1991

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: 10123703, 10123917, 10123918, 10123919, 10123920, 10123921, 10123922, 10123923, 10123924, 10123925, 10123926, 10123927, 10123928, 10123929.