On the map: every storm report logged this day.
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Storm reports for August 11, 1978
On August 11, 1978, 4 hail, 8 damaging-wind and 2 tornado reports were logged across 8 states.
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On August 11, 1978, 4 hail, 8 damaging-wind and 2 tornado reports were logged across 8 states. The largest hail reported was 1.75″ (golf ball size) in Philadelphia County, PA.
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 |
|---|---|---|---|---|
| LA | 1 | 3 | 0 | 0.75″ |
| NJ | 1 | 1 | 0 | 1.00″ |
| AR | 1 | 1 | 0 | 0.75″ |
| MO | 0 | 2 | 0 | – |
| PA | 1 | 0 | 0 | 1.75″ |
| MD | 0 | 0 | 1 | – |
| NY | 0 | 0 | 1 | – |
| MS | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Yeadon, PA | 12,405 | 1.75″ |
| Lansdowne, PA | 11,225 | 1.75″ |
| Darby, PA | 10,749 | 1.75″ |
| Collingdale, PA | 8,956 | 1.75″ |
| Clifton Heights, PA | 6,880 | 1.75″ |
| Sharon Hill, PA | 6,039 | 1.75″ |
| Narberth, PA | 4,530 | 1.75″ |
| Aldan, PA | 4,277 | 1.75″ |
| East Lansdowne, PA | 2,724 | 1.75″ |
| Bound Brook, NJ | 12,643 | 1.00″ |
| Manville, NJ | 11,031 | 1.00″ |
| South Bound Brook, NJ | 4,965 | 1.00″ |
| Pine Bluff, AR | 38,785 | 0.75″ |
| Bastrop, LA | 8,922 | 0.75″ |
Hail reports (4)
| Time (UTC) | Size | Location |
|---|---|---|
| 18:45 | 1.75″ | Philadelphia County, PA |
| 17:30 | 1.00″ | Somerset County, NJ |
| 19:20 | 0.75″ | Morehouse Parish, LA |
| 21:00 | 0.75″ | Jefferson County, AR |
Damage, injuries and deaths
National Weather Service offices recorded about $5,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (14 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 |
|---|---|---|---|---|
| Baltimore County, MD | 1 | 0 | 0 | $3,000 |
| Nassau County, NY | 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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