Flash Flood, Montgomery
- When
- June 11, 4:20 PM EST to 4:45 PM EST
- Where
- Montgomery County, Central Portion
- Property damage
- $2,000
- Coordinates
- 39.136, -77.204 (the zone’s center; the record gives no point)
Flash Flood in Maryland, June 11, 1996
A concentrated area of thunderstorms dumped copious rainfall on southern and central Montgomery Co, producing scattered flash flooding. High standing water was noted at the intersection of state route 355 and Montrose Road in Rockville.
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
- $2,000
- 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.
A concentrated area of thunderstorms dumped copious rainfall on southern and central Montgomery Co, producing scattered flash flooding. High standing water was noted at the intersection of state route 355 and Montrose Road in Rockville. In Norbeck (6 E Rockville), the Northwest Branch came out of it's banks, causing minor flooding and temporary road closures of state route 28 and Layhill Road.
The radar
The national radar mosaic for the moment the first event began.
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
- Damaging Wind in Kansas, June 11, 1996
- Lightning Strike in Ohio, June 11, 1996
- Lightning Strike in Ohio, June 11, 1996
- Lightning Strike in Ohio, June 11, 1996
- Heavy Rain in North Carolina, June 11, 1996
- Flash Flood in Maryland, June 11, 1996
- Hail in Texas, June 11, 1996
- Hail in Texas, June 11, 1996
- Hail in Alabama, June 11, 1996
- Hail in Texas, June 11, 1996
- Hail in Texas, June 11, 1996
- Flash Flood in North Dakota, June 11, 1996
More
Every storm in Maryland in 1996Every state in 1996This day in weather historyWarnings in Maryland, June 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: 5560596.