Hail, Mercer
- When
- October 3, 5:20 PM EST
- Where
- Mercer County, Hamilton Square
- Measured
- 0.88 in hail
- Reported by
- Trained Spotter
- Coordinates
- 40.230, -74.650
A severe thunderstorm produced hail up to size of nickels in Hamilton Square.
Hail in New Jersey, October 3, 2009
A line of showers and thunderstorms that moved through central New Jersey during the early evening produced large hail in Mercer County.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS PHI wrote it up.
A line of showers and thunderstorms that moved through central New Jersey during the early evening produced large hail in Mercer County.
The radar
The Philadelphia radar (KDIX), 37 km away, was scanning. The volume nearest the first event began at 22:22 UTC.
Event by event
1 hail. Local standard time, as filed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Wildfire in California, October 3 to 10, 2009
- Lightning Strike in Maine, October 3, 2009
- Dust Storm in Washington, October 3 to 4, 2009
- High Wind in Montana, October 3 to 4, 2009
- Flash Flooding and Hail in Texas, October 3 to 4, 2009
- High Wind in Nevada, October 3 to 4, 2009
- Strong Wind and Winter Weather in California, October 3 to 4, 2009
- Winter Storm in Montana, October 3 to 5, 2009
- Heavy Snow in Oregon, October 3 to 4, 2009
- Winter Weather in Nevada, October 3 to 4, 2009
- Tropical Storm in Guam, October 3 to 4, 2009
- Marine Thunderstorm Wind in North Atlantic Coastal Waters, October 3, 2009
More
Every storm in New Jersey in 2009Every state in 2009This day in weather historyWarnings in New Jersey, October 2009
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 197912.