On the map: every storm report logged this day.
On the map
Storm reports for August 17, 1990
On August 17, 1990, 2 hail, 10 damaging-wind and 3 tornado reports were logged across 7 states.
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On August 17, 1990, 2 hail, 10 damaging-wind and 3 tornado reports were logged across 7 states. The largest hail reported was 1.00″ (quarter size) in Walworth 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 |
|---|---|---|---|---|
| SD | 2 | 2 | 0 | 1.00″ |
| ID | 0 | 0 | 3 | – |
| FL | 0 | 2 | 0 | – |
| IN | 0 | 2 | 0 | – |
| WI | 0 | 2 | 0 | – |
| GA | 0 | 1 | 0 | – |
| TX | 0 | 1 | 0 | – |
Hail reports (2)
| Time (UTC) | Size | Location |
|---|---|---|
| 23:58 | 1.00″ | Walworth County, SD |
| 23:29 | 0.75″ | Walworth County, SD |
Damage, injuries and deaths
National Weather Service offices recorded about $250,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (15 events in 7 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 |
|---|---|---|---|---|
| Power County, ID | 1 | 0 | 0 | $250,000 |
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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