South Dakota, 2018

Tornado and Hail in South Dakota, July 29, 2018

July 29, 2018 · NWS UNR · 4 events in 1 county or zone

A severe thunderstorm developed over northern Oglala Lakota County and tracked southeast across eastern Oglala Lakota County. Large hail and strong wind gusts accompanied the storm.

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
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

What happened

The episode as NWS UNR wrote it up.

A severe thunderstorm developed over northern Oglala Lakota County and tracked southeast across eastern Oglala Lakota County. Large hail and strong wind gusts accompanied the storm. The storm produced a weak tornado south of Kyle that only damaged some trees.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before the first event at Jul 29, 10:30 AM MST, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 29, 10:30 AM MST, 2 hours 40 minutes before
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Hazardous weather outlook, Jul 29, 4:03 AM MST, 9 hours 7 minutes before
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In the hours before

Local storm report, Jul 29, 12:38 PM MST, 32 minutes before
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The radar

The Rapid City radar (KUDX), 95 km away, was scanning. The volume nearest the first event began at 20:07 UTC.

Open the radar archive at this moment

Event by event

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

Hail, Oglala Lakota

When
July 29, 1:10 PM MST
Where
Oglala Lakota County, 3 mi ENE of Kyle
Measured
1.25 in hail
Reported by
COOP Observer
Coordinates
43.437, -102.125

Hail, Oglala Lakota

When
July 29, 1:10 PM MST
Where
Oglala Lakota County, Kyle
Measured
2 in hail
Reported by
Public
Coordinates
43.420, -102.180

Thunderstorm Wind, Oglala Lakota

When
July 29, 1:14 PM MST
Where
Oglala Lakota County, 4 mi SSW of Kyle
Measured
70 kt (81 mph) estimated gust
Reported by
Public
Coordinates
43.367, -102.210

The strong winds damaged a home and outbuildings.

Tornado, Oglala Lakota

When
July 29, 1:20 PM MST
Where
Oglala Lakota County, 6.66 mi S of Kyle
Rating
EF0
Path length
0.04 mi
Path width
10 yd
Reported by
NWS Storm Survey
Coordinates
43.324, -102.186

A brief EF-0 tornado damaged a group of trees, with large tree branches broken.

What these are

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.
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.

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

The same day elsewhere

More

Every storm in South Dakota in 2018Every state in 2018This day in weather historyThe tornado archive for South Dakota, 2018Warnings in South Dakota, July 2018

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: 770147, 770148, 770150, 770153.