Hail, Mellette
- When
- July 20, 4:54 PM CST
- Where
- Mellette County, 6.61 mi NW of Cedar Butte
- Measured
- 0.75 in hail
- Reported by
- Public
- Coordinates
- 43.650, -101.110
Estimated hail size report.
Tornado and Hail in South Dakota, July 20, 2025
A long lasting supercell thunderstorm tracked across the eastern portions of the CWA and produced large to giant hail that impacted the Rosebud community. Storm chaser video and reports also confirmed a brief tornado.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 14
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 long lasting supercell thunderstorm tracked across the eastern portions of the CWA and produced large to giant hail that impacted the Rosebud community. Storm chaser video and reports also confirmed a brief tornado.
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 19, 4:57 PM CST, 23 hours 57 minutes earlier.
Area forecast discussion, Jul 19, 4:57 PM CST, 23 hours 57 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The radar
The Rapid City radar (KUDX), 148 km away, was scanning. The volume nearest the first event began at 22:55 UTC.
Event by event
11 hail, 2 thunderstorm wind, 1 tornado. Local standard time, as filed.
Tornado, Todd
- When
- July 20, 5:33 PM CST to 5:34 PM CST
- Where
- Todd County, 2.05 mi NW of Parmelee
- Rating
- EFU
- Path length
- 0.08 mi
- Path width
- 20 yd
- Reported by
- Storm Chaser
- Coordinates
- 43.340, -101.050
No damage reported. Track based on chaser video and reports.
Hail, Todd
- When
- July 20, 5:40 PM CST
- Where
- Todd County, 2.13 mi NNW of Parmelee
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.350, -101.030
Storm chaser report.
Hail, Todd
- When
- July 20, 5:45 PM CST
- Where
- Todd County, 0.5 mi W of Parmelee
- Measured
- 4 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.320, -101.030
Storm chaser confirmed baseball size hail.
Hail, Todd
- When
- July 20, 6:04 PM CST
- Where
- Todd County, 5.45 mi NNW of St Francis
- Measured
- 2.5 in hail
- Reported by
- Storm Chaser
- Coordinates
- 43.200, -100.970
Picture confirmed hail report from chaser.
Hail, Todd
- When
- July 20, 6:14 PM CST
- Where
- Todd County, Rosebud
- Measured
- 2.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.230, -100.850
Spotter and public submitted hail photos.
Hail, Todd
- When
- July 20, 6:15 PM CST
- Where
- Todd County, 0.5 mi W of Rosebud
- Measured
- 4.5 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.230, -100.860
Spotters and EM confirmed hail report.
Hail, Jackson
- When
- July 20, 5:40 PM MST
- Where
- Jackson County, 6.93 mi N of Belvidere
- Measured
- 0.88 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.930, -101.280
Estimated hail size report.
Hail, Todd
- When
- July 20, 6:43 PM CST
- Where
- Todd County, 0.86 mi NE of St Francis
- Measured
- 2 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.140, -100.910
Report stated most quarter size. Been hailing for 15 minutes and still hailing.
Thunderstorm Wind, Bennett
- When
- July 20, 5:45 PM MST
- Where
- Bennett County, 7.54 mi SSE of Tuthill
- Measured
- 61 kt (70 mph) estimated gust
- Reported by
- Storm Chaser
- Coordinates
- 43.050, -101.440
Estimated wind gust report from chaser.
Thunderstorm Wind, Todd
- When
- July 20, 6:45 PM CST
- Where
- Todd County, 8.27 mi SSE of St Francis
- Measured
- 61 kt (70 mph) estimated gust
- Reported by
- Storm Chaser
- Coordinates
- 43.030, -100.830
Updated location. 8 SSE of Tuthill was the incorrect location, estimated wind gust.
Hail, Todd
- When
- July 20, 6:50 PM CST
- Where
- Todd County, 7.12 mi ESE of St Francis
- Measured
- 1.75 in hail
- Reported by
- Public
- Coordinates
- 43.090, -100.790
Public submitted photos.
Hail, Jackson
- When
- July 20, 5:55 PM MST
- Where
- Jackson County, 6.93 mi N of Belvidere
- Measured
- 1.25 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.930, -101.280
Spotter confirmed hail report.
Hail, Harding
- When
- July 20, 7:55 PM MST
- Where
- Harding County, 2.07 mi S of Ludlow
- Measured
- 1 in hail
- Reported by
- Public
- Coordinates
- 45.800, -103.380
Estimated hail report.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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
- Flash Flood in Missouri, July 20 to 21, 2025
- Hail and Damaging Winds in North Dakota, July 20, 2025
- Flash Flooding in Illinois, July 20 to 21, 2025
- Flash Flooding and Damaging Wind in Iowa, July 20, 2025
- Flash Flooding and Debris Flow in New Mexico, July 20 to 24, 2025
- Flash Flooding in Missouri, July 20 to 21, 2025
- Hail and Damaging Winds in Maine, July 20, 2025
- Rip Current in Michigan, July 20, 2025
- Hail and Damaging Winds in New Hampshire, July 20, 2025
- Flash Flooding and Damaging Winds in Kentucky, July 20, 2025
- Flash Flooding and Flood in Ohio, July 20, 2025
- Damaging Winds and Lightning Strike in Connecticut, July 20, 2025
More
Every storm in South Dakota in 2025Every state in 2025This day in weather historyThe tornado archive for South Dakota, 2025Warnings in South Dakota, July 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: 1285627, 1285630, 1285631, 1285634, 1285637, 1285638, 1285639, 1285632, 1285640, 1285635, 1285641, 1285642, 1285636, 1285643.