Flash Flood, Frederick
- When
- November 8, 3:30 PM EST to 4:45 PM EST
- Where
- Frederick County, S Portion
- Coordinates
- 39.472, -77.398 (the zone’s center; the record gives no point)
A strong cold front pumped tropical moisture ahead of it, producing torrential rains which caused sporadic flash flooding across central Maryland during the afternoon and evening of the 8th. 5 to 3 inches across the area, but locally higher amounts likely fell in some areas.
Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS LWX wrote it up.
A strong cold front pumped tropical moisture ahead of it, producing torrential rains which caused sporadic flash flooding across central Maryland during the afternoon and evening of the 8th. Rain totals averaged 1.5 to 3 inches across the area, but locally higher amounts likely fell in some areas. Flooding was most prevalent at low-lying locations when creeks and streams overflowed their banks.In Frederick Co, roads and low-lying areas were flooded near Urbana. In Montgomery Co, closed roads included Beach Drive in Kensington, Watkins Mill Road (at a one lane bridge) in Gaithersburg, and Emery Lane in Olney. Several roads were closed in western Howard Co as well. Federal highway 1 was under one foot of water in Beltsville. In Anne Arundel Co, high water closed roads in low-lying areas of Glen Burnie.In Baltimore Co, several motorists became trapped in their vehicles near Hereford as high water stalled out engines. Fire and Rescue workers used rafts to get to the site; motorists escaped to safety through open windows. Other low-lying areas of central Baltimore Co were under water, especially near the Western Run which overflowed its banks.The torrential rains slowed the Friday evening commute to a crawl, and numerous accidents occurred. Two serious accidents were reported in Anne Arundel Co - a 37 year old man was struck and killed by a vehicle near Baltimore-Washington International Airport, and a school bus was struck by a minivan after the bus inadvertently ran a red light near Jessup. The driver of the van sustained minor injuries.The storms knocked out power to nearly 1000 Maryland customers of Potomac Electric Power Co, and 2500 Baltimore Gas and Electric customers.
The Sterling radar (KLWX), 56 km away, was scanning. The volume nearest the first event began at 20:30 UTC.
6 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 1996Every state in 1996This day in weather historyWarnings in Maryland, November 1996
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: 5572781, 5572782, 5572783, 5572784, 5572785, 5572780.