South Dakota, 2014

Damaging Winds in South Dakota, July 24, 2014

July 24, 2014 · NWS UNR · 6 events in 2 counties and zones

A thunderstorm became severe over Shannon County and tracked eastward across Bennett County. The storm produced strong wind gusts of 60 to over 80 mph across portions of southeast Shannon and Bennett Counties.

Where it happened

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The toll

Deaths
0
Injuries
0
Property damage
$25,000
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 thunderstorm became severe over Shannon County and tracked eastward across Bennett County. The storm produced strong wind gusts of 60 to over 80 mph across portions of southeast Shannon and Bennett Counties.

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 24, 1:17 PM MST, 2 hours 30 minutes earlier.

Area forecast discussion, Jul 24, 1:17 PM MST, 2 hours 30 minutes before
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Hazardous weather outlook, Jul 24, 1:22 PM MST, 2 hours 25 minutes before
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In the hours before

Special weather statement, Jul 24, 3:41 PM MST, 6 minutes before
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The radar

The Rapid City radar (KUDX), 107 km away, was scanning. The volume nearest the first event began at 22:46 UTC.

Open the radar archive at this moment

Event by event

6 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Oglala Lakota

When
July 24, 3:47 PM MST
Where
Oglala Lakota County, Porcupine
Measured
70 kt (81 mph) estimated gust
Property damage
$25,000
Reported by
Law Enforcement
Coordinates
43.230, -102.330

Strong winds to 80 mph damaged roofs of several buildings, including the clinic; sheds, and trees in an area about one and a half mile around the community.

Thunderstorm Wind, Oglala Lakota

When
July 24, 3:49 PM MST
Where
Oglala Lakota County, 5.04 mi NE of Porcupine
Measured
70 kt (81 mph) measured gust
Reported by
RAWS
Coordinates
43.289, -102.271

Thunderstorm Wind, Oglala Lakota

When
July 24, 3:50 PM MST
Where
Oglala Lakota County, 5.08 mi E of Porcupine
Measured
61 kt (70 mph) estimated gust
Reported by
Trained Spotter
Coordinates
43.240, -102.230

Strong winds broke large branches off trees.

Thunderstorm Wind, Bennett

When
July 24, 4:35 PM MST
Where
Bennett County, Martin Muni Arpt
Measured
55 kt (63 mph) measured gust
Reported by
AWOS
Coordinates
43.170, -101.720

Thunderstorm Wind, Bennett

When
July 24, 4:40 PM MST
Where
Bennett County, 0.29 mi SE of Martin Muni Arpt
Measured
53 kt (61 mph) measured gust
Reported by
Mesonet
Coordinates
43.167, -101.716

Thunderstorm Wind, Bennett

When
July 24, 4:57 PM MST
Where
Bennett County, Vetal
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
43.220, -101.380

Wind gusts were estimated at 60 mph.

What these are

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

More

Every storm in South Dakota in 2014Every state in 2014This day in weather historyWarnings in South Dakota, July 2014

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: 532016, 532017, 532018, 537037, 532014, 532015.