South Dakota storm reports for August 21, 2017
NOAA recorded 15 hail reports and 4 wind reports in South Dakota on August 21, 2017.
- in South Dakota
- 19
- Storm reports
- About 51 miles from Sioux Falls, SD
- 2.0 in
- Largest hail
- Near 44.06, -100.46, SD
- 70 mph
- Highest gust
- 0
- Tornado reports
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports.
- Wind report
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports.
- Wind report
Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on August 21, 2017 to 12:00 UTC the next day. Times are Central.
Select a dot or a path for the report.
Reports by hour
Hail15, most at 12 PM
Wind4, most at 9 AM
Every report
Source: NOAA/NWS Storm Prediction Center.
| Time | Size | Where |
|---|---|---|
| 7:38 AM | 1.75 in | Near 44.92, -97.17, SD |
| 8:58 AM | 1.75 in | Near 44.36, -100.38, SD |
| 9:20 AM | 1.5 in | Near 44.16, -100.09, SD |
| 9:30 AM | 1.0 in | Near 44.22, -100.13, SD |
| 10:20 AM | 1.0 in | Near 43.76, -99.75, SD |
| 10:45 AM | 1.0 in | Near 43.71, -99.53, SD |
| 11:00 AM | 1.5 in | Near 43.65, -99.32, SD |
| 11:06 AM | 0.88 in | About 25 miles from Sioux Falls, SD |
| 12:05 PM | 1.75 in | Near 43.50, -98.63, SD |
| 12:05 PM | 1.75 in | Near 43.50, -98.63, SD |
| 12:25 PM | 0.88 in | Near 43.43, -98.41, SD |
| 12:53 PM | 1.0 in | About 23 miles from Sioux Falls, SD |
| 12:55 PM | 2.0 in | About 51 miles from Sioux Falls, SD |
| 1:06 PM | 1.75 in | About 46 miles from Sioux Falls, SD |
| 1:36 PM | 1.0 in | About 56 miles from Sioux Falls, SD |
| Time | Gust | Where |
|---|---|---|
| 9:01 AM | 70 mph | Near 44.06, -100.46, SD |
| 9:41 AM | 62 mph | Near 43.93, -100.29, SD |
| 10:20 AM | 64 mph | Near 43.76, -99.75, SD |
| 12:10 PM | 60 mph | Near 43.43, -98.40, SD |
Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.