Hail in South Dakota, July 23, 2013

Name: Hail in South Dakota, July 23, 2013
Start: 2013-07-23T13:05
End: 2013-07-23T15:15
Location: South Dakota

July 23, 2013 · NWS UNR · 6 events in 3 counties and zones

A supercell thunderstorm developed over eastern Custer County and moved southeastward through western Shannon County. The storm produced large hail from Fairburn to Slim Butte.

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: 0
Property damage: $20,000
Crop damage: None recorded
Events: 6

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 supercell thunderstorm developed over eastern Custer County and moved southeastward through western Shannon County. The storm produced large hail from Fairburn to Slim Butte.

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 23, 10:17 AM MST, 2 hours 48 minutes earlier.

Area forecast discussion, Jul 23, 10:17 AM MST, 2 hours 48 minutes before

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Hazardous weather outlook, Jul 23, 8:18 AM MST, 4 hours 47 minutes before

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In the hours before

Local storm report, Jul 23, 8:20 AM MST, 4 hours 45 minutes before

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Local storm report, Jul 23, 8:33 AM MST, 4 hours 32 minutes before

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Local storm report, Jul 23, 9:16 AM MST, 3 hours 49 minutes before

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Local storm report, Jul 23, 10:28 AM MST, 2 hours 37 minutes before

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Special weather statement, Jul 23, 12:40 PM MST, 25 minutes before

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The radar

The Rapid City radar (KUDX), 60 km away, was scanning. The volume nearest the first event began at 20:05 UTC.

Open the radar archive at this moment

Event by event

6 hail. Local standard time, as filed.

Hail, Custer

When: July 23, 1:05 PM MST to 1:15 PM MST
Where: Custer County, 3.83 mi W of Fairburn
Measured: 1.5 in hail
Property damage: $10,000
Reported by: Public
Coordinates: 43.698, -103.286

Hail, Custer

When: July 23, 1:15 PM MST
Where: Custer County, 7.13 mi W of Fairburn
Measured: 1.25 in hail
Reported by: NWS Employee
Coordinates: 43.670, -103.350

Hail, Fall River

When: July 23, 2:15 PM MST
Where: Fall River County, 6.64 mi NE of Smithwick
Measured: 1.5 in hail
Reported by: Public
Coordinates: 43.374, -103.136

Hail, Oglala Lakota

When: July 23, 2:35 PM MST
Where: Oglala Lakota County, 12 mi W of Oglala
Measured: 1.5 in hail
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 43.180, -102.988

Hail, Oglala Lakota

When: July 23, 3:00 PM MST
Where: Oglala Lakota County, 3.55 mi W of Slim Butte
Measured: 0.88 in hail
Reported by: Public
Coordinates: 43.076, -102.900

Hail, Oglala Lakota

When: July 23, 3:15 PM MST
Where: Oglala Lakota County, 4.27 mi SSW of Slim Butte
Measured: 2 in hail
Property damage: $5,000
Reported by: Public
Coordinates: 43.020, -102.850

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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: 466769, 466771, 466773, 466778, 466780, 466783.