On the map: every storm report logged this day.
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Storm reports for August 21, 1987
On August 21, 1987, 13 hail, 10 damaging-wind and 2 tornado reports were logged across 9 states.
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On August 21, 1987, 13 hail, 10 damaging-wind and 2 tornado reports were logged across 9 states. The largest hail reported was 2.75″ (baseball size) in Deuel County, SD.
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 |
|---|---|---|---|---|
| NC | 3 | 3 | 0 | 1.00″ |
| MN | 5 | 0 | 0 | 2.75″ |
| MI | 2 | 2 | 0 | 0.88″ |
| FL | 0 | 2 | 2 | – |
| SD | 2 | 0 | 0 | 2.75″ |
| IN | 1 | 0 | 0 | 1.75″ |
| WI | 0 | 1 | 0 | – |
| SC | 0 | 1 | 0 | – |
| OH | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Cary, NC | 182,659 | 1.00″ |
| Morrisville, NC | 32,628 | 1.00″ |
| Little Falls, MN | 9,206 | 1.00″ |
| Sparta, MI | 4,323 | 0.88″ |
| Kentwood, MI | 54,768 | 0.75″ |
Hail reports (13)
| Time (UTC) | Size | Location |
|---|---|---|
| 20:30 | 2.75″ | Deuel County, SD |
| 20:45 | 2.75″ | Lac qui Parle County, MN |
| 18:56 | 1.75″ | Cass County, IN |
| 18:45 | 1.00″ | Wake County, NC |
| 20:00 | 1.00″ | Morrison County, MN |
| 20:00 | 1.00″ | Lee County, NC |
| 21:00 | 1.00″ | Moore County, NC |
| 04:12 | 0.88″ | Kent County, MI |
| 18:45 | 0.75″ | Otter Tail County, MN |
| 19:08 | 0.75″ | Todd County, MN |
| 20:00 | 0.75″ | Grant County, SD |
| 20:58 | 0.75″ | Yellow Medicine County, MN |
| 05:05 | 0.75″ | Kent County, MI |
Damage, injuries and deaths
National Weather Service offices recorded about $275,000 in property damage and 6 injuries from hail, thunderstorm wind and tornadoes across the US on this storm day (25 events in 9 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 |
|---|---|---|---|---|
| Sarasota County, FL | 1 | 6 | 0 | $250,000 |
| Charlotte County, FL | 1 | 0 | 0 | $25,000 |
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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