Waterspout, Sussex
- When
- August 20, 3:25 PM EST
- Where
- Sussex County, 1 mi NE of Slaughter Beach
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 38.683, -75.339 (the zone’s center; the record gives no point)
Waterspout in Delaware, August 20, 1999
For the second time during the afternoon of the 20th, a waterspout formed in Delaware Bay. This waterspout formed about 1 mile northeast of Slaughter Beach.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
For the second time during the afternoon of the 20th, a waterspout formed in Delaware Bay. This waterspout formed about 1 mile northeast of Slaughter Beach. It remained on the bay during its lifetime and caused no property damage.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 waterspout. Local standard time, as filed.
What these are
- Waterspout
- A tornado over water. One that moves ashore is filed as a tornado from the coastline on.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Waterspouts in New Jersey, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Hail and Damaging Winds in South Carolina, August 20, 1999
- Hail and Damaging Winds in Georgia, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Hail and Damaging Winds in North Carolina, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Flash Flood in Pennsylvania, August 20, 1999
- Damaging Wind in Louisiana, August 20, 1999
- Hail and Damaging Winds in Kansas, August 20, 1999
- Flash Flooding in New York, August 20, 1999
- Damaging Wind in Louisiana, August 20, 1999
More
Every storm in Delaware in 1999Every state in 1999This day in weather historyWarnings in Delaware, August 1999
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 2026-09-24. Each event’s entry at NCEI: 5718589.