South Dakota, 2025

Damaging Winds in South Dakota, June 20, 2025

June 20, 2025 · NWS ABR · 6 events in 3 counties and zones

Strong storms in north central South Dakota would go on to produce high winds, with a peak wind gust of 64 mph measured at the South Dakota Department of Transportation weather station 2 miles north of Herreid.

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
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 ABR wrote it up.

Strong storms in north central South Dakota would go on to produce high winds, with a peak wind gust of 64 mph measured at the South Dakota Department of Transportation weather station 2 miles north of Herreid.

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 Aberdeen, SD wrote its last area forecast discussion before the first event at Jun 20, 4:11 PM MST, 3 hours 4 minutes earlier.

Area forecast discussion, Jun 20, 4:11 PM MST, 3 hours 4 minutes before
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Hazardous weather outlook, Jun 20, 2:02 PM MST, 5 hours 13 minutes before
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In the hours before

Local storm report, Jun 20, 2:10 PM MST, 5 hours 5 minutes before
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Local storm report, Jun 20, 2:12 PM MST, 5 hours 3 minutes before
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Local storm report, Jun 20, 3:15 PM MST, 4 hours before
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The radar

The Bismarck radar (KBIS), 105 km away, was scanning. The volume nearest the first event began at 02:15 UTC.

Open the radar archive at this moment

Event by event

6 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Corson

When
June 20, 7:15 PM MST
Where
Corson County, Mc Intosh
Measured
61 kt (70 mph) estimated gust
Reported by
Trained Spotter
Coordinates
45.920, -101.350

A trained spotter estimated thunderstorm winds topped out at about 70 mph.

Thunderstorm Wind, Corson

When
June 20, 7:20 PM MST
Where
Corson County, 11.1 mi S of Bullhead
Measured
59 kt (68 mph) measured gust
Reported by
Mesonet
Coordinates
45.610, -101.060

Thunderstorm Wind, Corson

When
June 20, 7:32 PM MST
Where
Corson County, 4.55 mi WNW of Mc Laughlin
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
45.840, -100.910

A trained spotter estimates wind gusts topped out at 60 mph.

Thunderstorm Wind, Corson

When
June 20, 7:35 PM MST
Where
Corson County, 4.8 mi WNW of Mc Laughlin
Measured
51 kt (59 mph) measured gust
Reported by
Mesonet
Coordinates
45.850, -100.910

Thunderstorm Wind, Campbell

When
June 20, 9:05 PM CST
Where
Campbell County, 1.38 mi N of Herreid Muni Arpt
Measured
56 kt (64 mph) measured gust
Reported by
Mesonet
Coordinates
45.870, -100.070

Thunderstorm Wind, McPherson

When
June 20, 9:26 PM CST
Where
McPherson County, 8.66 mi W of Long Lake
Measured
52 kt (60 mph) measured gust
Reported by
Mesonet
Coordinates
45.880, -99.410

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 2025Every state in 2025This day in weather historyWarnings in South Dakota, June 2025

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: 1271526, 1271527, 1271528, 1271529, 1271530, 1271531.