On the map: every storm report logged this day.
On the map
Storm reports for July 21, 1974
On July 21, 1974, 3 hail, 15 damaging-wind and 1 tornado reports were logged across 10 states.
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On July 21, 1974, 3 hail, 15 damaging-wind and 1 tornado reports were logged across 10 states. The largest hail reported was 1.75″ (golf ball size) in Morton County, ND.
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 |
|---|---|---|---|---|
| IA | 0 | 5 | 1 | – |
| FL | 1 | 1 | 0 | 1.00″ |
| IL | 0 | 2 | 0 | – |
| SD | 0 | 2 | 0 | – |
| MO | 0 | 2 | 0 | – |
| ND | 1 | 0 | 0 | 1.75″ |
| CO | 1 | 0 | 0 | 0.75″ |
| AR | 0 | 1 | 0 | – |
| AZ | 0 | 1 | 0 | – |
| IN | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Palm Beach, FL | 9,493 | 1.00″ |
| Lake Clarke Shores, FL | 3,629 | 1.00″ |
| Mangonia Park, FL | 2,643 | 1.00″ |
Hail reports (3)
| Time (UTC) | Size | Location |
|---|---|---|
| 22:30 | 1.75″ | Morton County, ND |
| 00:40 | 1.00″ | Palm Beach County, FL |
| 00:45 | 0.75″ | Arapahoe County, CO |
Damage, injuries and deaths
National Weather Service offices recorded about $25,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (19 events in 10 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 |
|---|---|---|---|---|
| Johnson County, IA | 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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