South Dakota, 2020Tornado in South Dakota, July 23, 2020
July 23, 2020 · NWS UNR · 3 events in 1 county or zone
A strong storm over northern Butte County produced a couple of funnel clouds and a brief tornado west of Castle Rock.
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- 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.
A strong storm over northern Butte County produced a couple of funnel clouds and a brief tornado west of Castle Rock.
Tornado, Butte
- When
- July 23, 1:57 PM MST
- Where
- Butte County, 7 mi W of Castle Rock
- Rating
- EF0
- Path length
- 0.05 mi
- Path width
- 10 yd
- Reported by
- Storm Chaser
- Coordinates
- 44.970, -103.573
A tornado touched down briefly over prairie land near US Highway 85 west of Castle Rock.
Funnel Cloud, Butte
- When
- July 23, 2:05 PM MST
- Where
- Butte County, 6.88 mi W of Castle Rock
- Reported by
- Public
- Coordinates
- 44.980, -103.570
Funnel Cloud, Butte
- When
- July 23, 2:27 PM MST
- Where
- Butte County, 11.57 mi NNW of Castle Rock
- Reported by
- Trained Spotter
- Coordinates
- 45.110, -103.560
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flooding in Arizona, July 23, 20201 death · $52,000 · 4 events
- Flash Flooding and Damaging Winds in North Carolina, July 23, 2020$190,000 · 63 kt wind · 22 events
- Flash Flooding and Flooding in Massachusetts, July 23, 2020$80,000 · 60 kt wind · 36 events
- Wildfire in Washington, July 23 to 30, 2020$300,000 · 1 event
- Flash Flooding and Flooding in Nebraska, July 23 to 26, 2020$200,000 · 4 events
- Flash Flooding and Flood in Maryland, July 23 to 24, 2020$160,000 · 7 events
- Damaging Winds and Lightning Strike in New York, July 23, 2020$65,000 · 50 kt wind · 13 events
- Flash Flood and Flooding in Virginia, July 23, 2020$50,000 · 4 events
- Damaging Winds in Pennsylvania, July 23, 2020$40,000 · 50 kt wind · 8 events
- Damaging Winds in Virginia, July 23, 2020$26,000 · 50 kt wind · 6 events
- Flash Flooding and Debris Flows in Utah, July 23, 20202 injured · 68 kt wind · 5 events
- Damaging Winds in New Jersey, July 23 to 24, 202055 kt wind · 20 events
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: 911974, 911976, 911977.