On the map: every storm report logged this day.
On the map
Storm reports for July 21, 1979
On July 21, 1979, 6 hail, 4 damaging-wind and 3 tornado reports were logged across 8 states.
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← Jul 20, 1979 All 1979 storm days · July 1979 Jul 22, 1979 →
On July 21, 1979, 6 hail, 4 damaging-wind and 3 tornado reports were logged across 8 states. The largest hail reported was 2.75″ (baseball size) in Cottonwood County, MN.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| SD | 3 | 1 | 0 | 1.75″ |
| MN | 2 | 0 | 0 | 2.75″ |
| OH | 1 | 1 | 0 | 0.75″ |
| SC | 0 | 0 | 1 | – |
| NE | 0 | 0 | 1 | – |
| NY | 0 | 0 | 1 | – |
| LA | 0 | 1 | 0 | – |
| ND | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Windom, MN | 4,797 | 2.75″ |
| Brandon, SD | 10,837 | 1.75″ |
| Hartford, SD | 3,600 | 1.75″ |
| Dell Rapids, SD | 3,825 | 1.50″ |
| Gahanna, OH | 35,544 | 0.75″ |
| Whitehall, OH | 19,940 | 0.75″ |
| Bexley, OH | 12,793 | 0.75″ |
Hail reports (6)
| Time (UTC) | Size | Location |
|---|---|---|
| 03:44 | 2.75″ | Cottonwood County, MN |
| 04:00 | 2.00″ | Rock County, MN |
| 04:15 | 1.75″ | Minnehaha County, SD |
| 06:05 | 1.75″ | Minnehaha County, SD |
| 05:00 | 1.50″ | Minnehaha County, SD |
| 01:19 | 0.75″ | Franklin County, OH |
Damage, injuries and deaths
National Weather Service offices recorded about $250,000 in property damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (13 events in 8 states). Before 1996 the database holds only tornado, hail and wind events, and damage was often entered as a range, so treat these figures as rough. Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Hamilton County, NY | 1 | 1 | 0 | $250,000 |
| Sumter County, SC | 1 | 0 | 0 | $0 |
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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