Flash Flood, Baltimore
- When
- September 8, 5:55 PM EST to 6:30 PM EST
- Where
- Baltimore County, Se Portion
- Property damage
- $10,000
- Coordinates
- 39.443, -76.616 (the zone’s center; the record gives no point)
Flash Flood in Maryland, September 8, 1996
Downpours associated with slow-moving thunderstorms dumped an estimated 6 inches of rain in less than 4 hours, causing substantial flash flooding along interstate 95 in southeastern Baltimore and Harford Counties. In Joppatowne, numerous vehicles were reported under water, with several streets closed.
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
- $10,000
- 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 LWX wrote it up.
Downpours associated with slow-moving thunderstorms dumped an estimated 6 inches of rain in less than 4 hours, causing substantial flash flooding along interstate 95 in southeastern Baltimore and Harford Counties. In Joppatowne, numerous vehicles were reported under water, with several streets closed. A large section of Joppa Farm road collapsed. Numerous roads were flooded across the line in Baltimore Co as well. Federal highway 40 (Pulaski Highway) was closed for 2 hours.
The radar
The Sterling radar (KLWX), 91 km away, was scanning. The volume nearest the first event began at 22:52 UTC.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood in Pennsylvania, September 8 to 9, 1996
- Flood in Virginia, September 8, 1996
- Flash Flood in Hawaii, September 8 to 9, 1996
- Tornado in Florida, September 8, 1996
- Flash Flood in Maryland, September 8, 1996
- Flash Flood in Virginia, September 8, 1996
- Damaging Wind in Illinois, September 8, 1996
- Flash Flooding and Damaging Winds in New Jersey, September 8, 1996
- Flash Flood in Virginia, September 8, 1996
- Flash Flood in Virginia, September 8, 1996
- Flash Flood in Virginia, September 8, 1996
- Flash Flood in Virginia, September 8, 1996
More
Every storm in Maryland in 1996Every state in 1996This day in weather historyWarnings in Maryland, September 1996
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: 5572376.