On the map: every storm report logged this day.
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Storm reports for June 20, 1983
On June 20, 1983, 13 hail, 10 damaging-wind and 4 tornado reports were logged across 8 states.
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On June 20, 1983, 13 hail, 10 damaging-wind and 4 tornado reports were logged across 8 states. The largest hail reported was 4.50″ (softball size) in Goshen County, WY.
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 |
|---|---|---|---|---|
| NE | 3 | 2 | 1 | 4.00″ |
| ND | 5 | 1 | 0 | 2.75″ |
| WY | 2 | 0 | 1 | 4.50″ |
| MN | 1 | 2 | 0 | 1.50″ |
| SD | 2 | 0 | 1 | 1.40″ |
| VA | 0 | 3 | 0 | – |
| IA | 0 | 2 | 0 | – |
| FL | 0 | 0 | 1 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Valley City, ND | 6,580 | 2.75″ |
| Pierre, SD | 13,788 | 1.40″ |
| Grand Forks, ND | 59,845 | 1.00″ |
| East Grand Forks, MN | 8,915 | 1.00″ |
Hail reports (13)
| Time (UTC) | Size | Location |
|---|---|---|
| 23:20 | 4.50″ | Goshen County, WY |
| 00:30 | 4.00″ | Sioux County, NE |
| 03:10 | 2.75″ | Barnes County, ND |
| 21:10 | 1.75″ | Pembina County, ND |
| 17:40 | 1.50″ | Marshall County, MN |
| 01:30 | 1.50″ | Griggs County, ND |
| 02:00 | 1.50″ | Box Butte County, NE |
| 04:45 | 1.50″ | Barnes County, ND |
| 06:40 | 1.40″ | Hughes County, SD |
| 01:30 | 1.00″ | Grand Forks County, ND |
| 07:40 | 1.00″ | Hughes County, SD |
| 01:50 | 0.75″ | Laramie County, WY |
| 04:44 | 0.75″ | Box Butte County, NE |
Damage, injuries and deaths
National Weather Service offices recorded about $2.8 million in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (27 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 |
|---|---|---|---|---|
| Monroe County, FL | 1 | 0 | 0 | $2.5 million |
| Sioux County, NE | 1 | 0 | 0 | $250,000 |
| Fall River County, SD | 1 | 0 | 0 | $3,000 |
| Niobrara County, WY | 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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