Union County hail reports, South Dakota
Union County, South Dakota has 2 reports of hail in 2026, the largest stone measured 1.50 inches at Alcester on October 9, 2026, filed with the National Weather Service.
as of
County standing in South Dakota
During 2026, Union County places 1 among 5 counties in South Dakota by number of reports filed. Union County accounts for 33% of the 6 reports recorded in South Dakota for this period. For the 2026 period, Union County recorded South Dakota's overall largest hailstone, with 1.50 inches. The Union County reports trace back to 1 storm.
| Rank among counties | 1 / 5 |
|---|---|
| Share of state reports | 33% |
| State's largest this period | 1.50 inches, Union |
| Distinct storms | 1 |
Each figure here comes from Local Storm Reports, and the numbers cover only the stated period. A county with more spotters can rank high on reporting volume, whatever the weather did.
Hail reports for 2026
| Amount | Place | Reported by | Time |
|---|---|---|---|
| 1.50 inches | Alcester | Public | , October 9, 2026 |
| 1.00 inches | 8 S Alcester | Trained Spotter | , October 8, 2026 |
The National Weather Service Local Storm Reports in this list carry Union County in the county field and name the observer who filed each one.
Storms that brought the hail
- Hail totals for October 8 to 9, 2026 1.75 inches 3 E Redfield, IA
Days that had hail
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.