Flash Flood, Unicoi
- When
- July 24, 3:00 PM EST
- Where
- Unicoi County, Countywide
- Reported by
- AMATEUR RADIO
- Coordinates
- 36.111, -82.432 (the zone’s center; the record gives no point)
Flash Flood in Tennessee, July 24, 1999
Many roads washed out in the Flag Pond area. Some evacuations from Little Higgins Creek area off old Highway 23.
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 MRX wrote it up.
Many roads washed out in the Flag Pond area. Some evacuations from Little Higgins Creek area off old Highway 23. Water was reported flowing into lots of homes.
The radar
The Knoxville radar (KMRX), 87 km away, was scanning. The volume nearest the first event began at 19:59 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
- Hail and Damaging Winds in Ohio, July 24, 1999
- Lightning Strike in Louisiana, July 24, 1999
- Lightning Strike in North Carolina, July 24, 1999
- Lightning Strike in Wyoming, July 24, 1999
- Tornado in Arkansas, July 24, 1999
- Lightning Strike in Louisiana, July 24, 1999
- Hail and Damaging Winds in Georgia, July 24, 1999
- Tornadoes and Hail in Virginia, July 24, 1999
- Hail and Damaging Winds in Michigan, July 24, 1999
- Damaging Wind in Colorado, July 24, 1999
- Damaging Winds in New York, July 24, 1999
- Lightning Strike in Alabama, July 24, 1999
More
Every storm in Tennessee in 1999Every state in 1999This day in weather historyWarnings in Tennessee, July 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: 5702248.