On the map: every storm report logged this day.
On the map
Storm reports for May 23, 1964
On May 23, 1964, 6 hail, 15 damaging-wind and 7 tornado reports were logged across 7 states.
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On May 23, 1964, 6 hail, 15 damaging-wind and 7 tornado reports were logged across 7 states. The largest hail reported was 2.75″ (baseball size) in Madison County, NE.
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 | 1 | 3 | 3 | 2.75″ |
| WI | 3 | 2 | 2 | 2.00″ |
| IA | 1 | 5 | 1 | 1.75″ |
| MN | 1 | 3 | 0 | 1.00″ |
| KS | 0 | 0 | 1 | – |
| OH | 0 | 1 | 0 | – |
| ME | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Ellsworth, WI | 3,341 | 2.00″ |
| Watertown, MN | 4,774 | 1.00″ |
| Montrose, MN | 3,925 | 1.00″ |
| Mauston, WI | 4,147 | 0.75″ |
Hail reports (6)
| Time (UTC) | Size | Location |
|---|---|---|
| 02:00 | 2.75″ | Madison County, NE |
| 00:00 | 2.00″ | Pierce County, WI |
| 23:00 | 1.75″ | Harrison County, IA |
| 00:00 | 1.00″ | Wright County, MN |
| 05:00 | 1.00″ | Burnett County, WI |
| 04:00 | 0.75″ | Juneau County, WI |
Damage, injuries and deaths
National Weather Service offices recorded about $578,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (28 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 |
|---|---|---|---|---|
| Seward County, NE | 1 | 0 | 0 | $250,000 |
| Trempealeau County, WI | 1 | 0 | 0 | $250,000 |
| Franklin County, IA | 1 | 0 | 0 | $25,000 |
| Saunders County, NE | 1 | 0 | 0 | $25,000 |
| Buffalo County, WI | 1 | 0 | 0 | $25,000 |
| Hall County, NE | 1 | 0 | 0 | $3,000 |
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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