On the map: every storm report logged this day.
On the map
Storm reports for May 9, 1963
On May 9, 1963, 3 hail, 5 damaging-wind and 3 tornado reports were logged across 5 states.
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On May 9, 1963, 3 hail, 5 damaging-wind and 3 tornado reports were logged across 5 states. The largest hail reported was 1.50″ (ping pong ball size) in Cerro Gordo County, IA.
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 |
|---|---|---|---|---|
| WI | 2 | 2 | 0 | 1.00″ |
| IA | 1 | 0 | 2 | 1.50″ |
| PA | 0 | 2 | 0 | – |
| NH | 0 | 0 | 1 | – |
| SD | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Sun Prairie, WI | 39,253 | 1.00″ |
Hail reports (3)
| Time (UTC) | Size | Location |
|---|---|---|
| 03:00 | 1.50″ | Cerro Gordo County, IA |
| 18:55 | 1.00″ | Dane County, WI |
| 17:15 | 0.75″ | Richland County, WI |
Damage, injuries and deaths
National Weather Service offices recorded about $500,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (11 events in 5 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 |
|---|---|---|---|---|
| Hancock County, IA | 1 | 0 | 0 | $250,000 |
| Hillsborough County, NH | 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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