Hail and Damaging Winds in South Dakota, July 10, 2013

Name: Hail and Damaging Winds in South Dakota, July 10, 2013
Start: 2013-07-10T15:25
End: 2013-07-10T17:25
Location: South Dakota

July 10, 2013 · NWS UNR · 11 events in 2 counties and zones

A supercell thunderstorm developed near Rapid City late in the afternoon and tracked southeastward across eastern Custer County. The storm produced large hail and strong wind gusts from the south edge of Rapid City to the Cheyenne River.

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: $61,000
Crop damage: None recorded
Events: 11

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.

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 10, 1:38 PM MST, 1 hour 47 minutes earlier.

Area forecast discussion, Jul 10, 1:38 PM MST, 1 hour 47 minutes before

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Hazardous weather outlook, Jul 10, 8:45 AM MST, 6 hours 40 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
945 AM MDT WED JUL 10 2013

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-111300-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
945 AM MDT (1045 AM CDT) WED JUL 10 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA
TODAY INTO TONIGHT. THERE IS A SLIGHT RISK THAT SOME OF THESE STORMS
MAY BECOME SEVERE OVER FAR NORTHEAST WYOMING...THE BLACK HILLS
AREA...AND FAR SOUTHWEST SOUTH DAKOTA. LARGE HAIL AND DAMAGING WIND
GUSTS WILL BE THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ISOLATED THUNDERSTORMS WILL BE POSSIBLE THURSDAY FROM THE BLACK
HILLS INTO NORTHWEST SOUTH DAKOTA. A FEW OF THE THUNDERSTORMS MAY
HAVE THE POTENTIAL TO BECOME SEVERE WITH DAMAGING WIND GUSTS AS THE
MAIN THREAT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE AGAIN POSSIBLE ACROSS THE
AREA ON FRIDAY. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT EXPECTED
AT THIS TIME...A FEW STORM MAY HAVE THE POTENTIAL TO PRODUCE LARGE
HAIL OR DAMAGING WIND GUSTS

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

The radar

The Rapid City radar (KUDX), 35 km away, was scanning. The volume nearest the first event began at 22:25 UTC.

Open the radar archive at this moment

Event by event

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

Hail, Pennington

When: July 10, 3:25 PM MST
Where: Pennington County, 4.21 mi SSW of Rapid City
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 44.021, -103.239

Hail, Custer

When: July 10, 4:45 PM MST
Where: Custer County, 1.47 mi WSW of Hermosa
Measured: 1.5 in hail
Property damage: $40,000
Reported by: Trained Spotter
Coordinates: 43.831, -103.217

Hail, Custer

When: July 10, 4:50 PM MST to 5:10 PM MST
Where: Custer County, 5.44 mi SSW of Hermosa
Measured: 1.75 in hail
Reported by: Public
Coordinates: 43.768, -103.234

Hail, Custer

When: July 10, 5:00 PM MST to 5:20 PM MST
Where: Custer County, 4.42 mi NNW of Fairburn
Measured: 2.5 in hail
Property damage: $15,000
Reported by: Trained Spotter
Coordinates: 43.749, -103.244

Hail, Custer

When: July 10, 5:00 PM MST to 5:10 PM MST
Where: Custer County, 0.33 mi WSW of Hermosa
Measured: 1 in hail
Reported by: Public
Coordinates: 43.838, -103.196

Hail, Custer

When: July 10, 5:10 PM MST
Where: Custer County, 1.68 mi NNW of Fairburn
Measured: 2 in hail
Property damage: $3,000
Reported by: Storm Chaser
Coordinates: 43.713, -103.220

Hail, Custer

When: July 10, 5:15 PM MST to 5:25 PM MST
Where: Custer County, 4.67 mi NW of Fairburn
Measured: 0.88 in hail
Reported by: Public
Coordinates: 43.743, -103.268

Thunderstorm Wind, Custer

When: July 10, 5:18 PM MST
Where: Custer County, 3.72 mi ESE of Folsom
Measured: 61 kt (70 mph) estimated gust
Property damage: $1,000
Reported by: Trained Spotter
Coordinates: 43.796, -102.803

Wind gusts estimated at 70 mph blew metal panels off a barn roof.

Hail, Custer

When: July 10, 5:20 PM MST
Where: Custer County, 3.04 mi SE of Fairburn
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 43.663, -103.162

Thunderstorm Wind, Custer

When: July 10, 5:20 PM MST
Where: Custer County, 3.04 mi SE of Fairburn
Measured: 52 kt (60 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 43.663, -103.162

Wind gusts were estimated at 60 mph.

Thunderstorm Wind, Custer

When: July 10, 5:20 PM MST
Where: Custer County, 4.85 mi SE of Folsom
Measured: 61 kt (70 mph) estimated gust
Property damage: $2,000
Reported by: Trained Spotter
Coordinates: 43.780, -102.790

Strong winds destroyed a small metal shelter and scattered the debris a half mile away. The top of a grain bin was caved in.

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: 463912, 463915, 463919, 463917, 463925, 468798, 468797, 463923, 463921, 463922, 463924.