Iowa storm reports for August 20, 2021
NOAA recorded 2 wind reports and 4 tornado reports in Iowa on August 20, 2021.
- in Iowa
- 6
- Storm reports
- Near 42.55, -95.87, IA
- 64 mph
- Highest gust
- Highest rating EF0, about 49 miles from Sioux Falls, SD
- 4
- Tornado reports
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports. Shading: radar estimate.
- Wind report
- Tornado and its path
- Surveyed tornado path
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports. Shading: radar estimate.
- Wind report
- Tornado and its path
- Surveyed tornado path
Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on August 20, 2021 to 12:00 UTC the next day. Times are Central.
Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot.
Reports by hour
Wind2, most at 6 PM
Tornado4, most at 8 PM
Every report
Source: NOAA/NWS Storm Prediction Center.
| Time | Rating | Where | Path |
|---|---|---|---|
| 3:34 PM | EF0 | About 49 miles from Sioux Falls, SD | 3.64 mi long, 30 yd wide |
| 8:03 PM | Not rated | Near 42.59, -94.63, IA | 1.18 mi long, 20 yd wide |
| 8:19 PM | Not rated | Near 42.74, -94.35, IA | 2.16 mi long, 60 yd wide |
| 9:05 PM | EF0 | Near 42.76, -93.91, IA | 4.05 mi long, 190 yd wide |
| Time | Gust | Where |
|---|---|---|
| 6:16 PM | 64 mph | Near 42.55, -95.87, IA |
| 6:22 PM | 64 mph | Near 42.57, -95.78, IA |
Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.