Hail and Damaging Winds in South Dakota, July 20, 2013

Name: Hail and Damaging Winds in South Dakota, July 20, 2013
Start: 2013-07-20T18:13
End: 2013-07-20T21:20
Location: South Dakota

July 20, 2013 · NWS ABR · 7 events in 3 counties and zones

Thunderstorms moving across the central South Dakota produced sporadic hail and gusty winds. The strongest winds were confined to the I-90 corridor where gusts of 60 to 70 mph occurred.

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: 7

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 ABR wrote it up.

Thunderstorms moving across the central South Dakota produced sporadic hail and gusty winds. The strongest winds were confined to the I-90 corridor where gusts of 60 to 70 mph occurred.

The radar

The Aberdeen radar (KABR), 161 km away, was scanning. The volume nearest the first event began at 00:13 UTC.

Open the radar archive at this moment

Event by event

4 thunderstorm wind, 3 hail. Local standard time, as filed.

Hail, Sully

When: July 20, 6:13 PM CST to 6:18 PM CST
Where: Sully County, 3.39 mi NE of Laurel
Measured: 0.88 in hail
Reported by: Public
Coordinates: 44.860, -100.280

Hail, Sully

When: July 20, 6:15 PM CST to 6:25 PM CST
Where: Sully County, 2.81 mi ENE of Laurel
Measured: 1 in hail
Reported by: Public
Coordinates: 44.840, -100.270

Hail, Sully

When: July 20, 6:35 PM CST
Where: Sully County, 2.46 mi W of Onida Muni Arpt
Measured: 0.75 in hail
Reported by: COOP Observer
Coordinates: 44.700, -100.150

Thunderstorm Wind, Jones

When: July 20, 8:06 PM CST
Where: Jones County, 14.04 mi NNE of Draper
Measured: 52 kt (60 mph) estimated gust
Reported by: Public
Coordinates: 44.110, -100.430

A small tree was downed by 60 mph winds.

Thunderstorm Wind, Lyman

When: July 20, 8:10 PM CST
Where: Lyman County, 5.25 mi WNW of Mc Clure
Measured: 53 kt (61 mph) measured gust
Reported by: Mesonet
Coordinates: 44.120, -100.340

Thunderstorm Wind, Lyman

When: July 20, 9:10 PM CST
Where: Lyman County, 0.5 mi E of Reliance Arpt
Measured: 57 kt (66 mph) measured gust
Reported by: Mesonet
Coordinates: 43.850, -99.560

Thunderstorm Wind, Lyman

When: July 20, 9:20 PM CST
Where: Lyman County, 1 mi W of Oacoma
Measured: 58 kt (67 mph) measured gust
Reported by: Mesonet
Coordinates: 43.800, -99.420

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.

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

The same day elsewhere

Every storm in South Dakota in 2013 Every state in 2013 This day in weather history Warnings in South Dakota, July 2013

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 2026-10-01. Each event’s entry at NCEI: 468294, 468295, 468296, 468297, 468298, 468299, 468300.