Hail in South Dakota, August 14, 2019

Name: Hail in South Dakota, August 14, 2019
Start: 2019-08-14T11:33
End: 2019-08-14T11:42
Location: South Dakota

August 14, 2019 · NWS UNR · 3 events in 1 county or zone

A thunderstorm briefly became severe over the central Black Hills, producing large hail in the Hill City area.

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: None recorded
Crop damage: None recorded
Events: 3

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 thunderstorm briefly became severe over the central Black Hills, producing large hail in the Hill City area.

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 Aug 14, 9:57 AM MST, 1 hour 36 minutes earlier.

Area forecast discussion, Aug 14, 9:57 AM MST, 1 hour 36 minutes before

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Hazardous weather outlook, Aug 14, 4:26 AM MST, 7 hours 7 minutes before

Hazardous Weather Outlook
National Weather Service Rapid City SD
526 AM MDT Wed Aug 14 2019

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-151300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
526 AM MDT Wed Aug 14 2019 /626 AM CDT Wed Aug 14 2019/

This Hazardous Weather Outlook is for western South Dakota and
northeastern Wyoming.

.DAY ONE...Today and Tonight

Showers and thunderstorms are expected today. Strong to severe
thunderstorms are expected late this afternoon and this evening,
mainly across northeast Wyoming and southwestern South Dakota.
Large hail, damaging winds, and heavy rain will be the main
concerns. An isolated tornado is also possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Showers and thunderstorms are expected Thursday and Friday,
mainly during the afternoon and evening hours. Strong to severe
storms are expected again on Thursday. A few stronger storms will
be possible on Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

In the hours before

Special weather statement, Aug 14, 6:26 AM MST, 5 hours 7 minutes before

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Special weather statement, Aug 14, 7:31 AM MST, 4 hours 2 minutes before

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Special weather statement, Aug 14, 10:44 AM MST, 49 minutes before

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Special weather statement, Aug 14, 11:21 AM MST, 12 minutes before

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The radar

The Rapid City radar (KUDX), 64 km away, was scanning. The volume nearest the first event began at 18:33 UTC.

Open the radar archive at this moment

Event by event

3 hail. Local standard time, as filed.

Hail, Pennington

When: August 14, 11:33 AM MST
Where: Pennington County, Hill City
Measured: 1 in hail
Reported by: Public
Coordinates: 43.930, -103.580

Hail, Pennington

When: August 14, 11:40 AM MST
Where: Pennington County, 1 mi E of Hill City
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 43.930, -103.560

Hail, Pennington

When: August 14, 11:42 AM MST
Where: Pennington County, 3 mi SE of Hill City
Measured: 1.75 in hail
Reported by: Public
Coordinates: 43.899, -103.537

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 2019 Every state in 2019 This day in weather history Warnings in South Dakota, August 2019

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 2026-09-30. Each event’s entry at NCEI: 846339, 846340, 846341.