Flash Flood, Carroll
- When
- June 23, 6:30 PM EST to 7:30 PM EST
- Where
- Carroll County, 1 mi W of Westminster
- Property damage
- $5,000
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.563, -77.022 (the zone’s center; the record gives no point)
Flash Flooding in Maryland, June 23, 1998
A slow-moving line of thunderstorms, containing pockets of very heavy rain, caused local flash flooding which extended from extreme northern Montgomery Co through western Carroll Co during the evening. 1" in a half hour), falling onto saturated soil, caused small streams and creeks to escape their banks near Damascus.
Where it happened
Every event with a place to put it; 2 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
- $5,000
- Crop damage
- None recorded
- Events
- 2
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 slow-moving line of thunderstorms, containing pockets of very heavy rain, caused local flash flooding which extended from extreme northern Montgomery Co through western Carroll Co during the evening. Measured rainfall of 2.5 inches (1.1" in a half hour), falling onto saturated soil, caused small streams and creeks to escape their banks near Damascus. In western Carroll Co, the Meadow Branch overflowed its banks just west of Westminster, causing temporary closure of state highway 140.
The radar
The Sterling radar (KLWX), 77 km away, was scanning. The volume nearest the first event began at 23:31 UTC.
Event by event
2 flash flood. Local standard time, as filed.
Flash Flood, Montgomery
- When
- June 23, 6:30 PM EST to 7:30 PM EST
- Where
- Montgomery County, Damascus
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 39.136, -77.204 (the zone’s center; the record gives no point)
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
- Heat in Missouri, June 23 to 30, 1998
- Heat in Illinois, June 23 to 30, 1998
- Tornado in Nebraska, June 23, 1998
- Lightning Strike in Louisiana, June 23, 1998
- Tornado and Flash Flooding in Iowa, June 23 to 24, 1998
- Tornado in Nebraska, June 23, 1998
- Hail and Damaging Winds in Nebraska, June 23, 1998
- Tornado in Iowa, June 23, 1998
- Tornado in Nebraska, June 23, 1998
- Tornado in Alabama, June 23, 1998
- Damaging Wind in Florida, June 23, 1998
- Hail and Damaging Wind in Kansas, June 23, 1998
More
Every storm in Maryland in 1998Every state in 1998This day in weather historyWarnings in Maryland, June 1998
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: 5658467, 5658468.