Flash Flood, Rio Blanco
- When
- August 29, 1:00 PM MST to 2:00 PM MST
- Where
- Rio Blanco County, 10 mi NW of Rio Blanco
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.980, -108.217 (the zone’s center; the record gives no point)
Flash Flood in Colorado, August 29, 1999
Flash flooding occurred over many sections of the Piceance Creek Road ( 5 Road) for nearly 15 miles. The hardest hit area was near mile marker 21 where rock and mud covered the road up to 6 feet deep.
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 GJT wrote it up.
Flash flooding occurred over many sections of the Piceance Creek Road ( 5 Road) for nearly 15 miles. The hardest hit area was near mile marker 21 where rock and mud covered the road up to 6 feet deep.
The radar
The Grand Junction radar (KGJX), 102 km away, was scanning. The volume nearest the first event began at 20:00 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
- Hurricane in Florida, August 29, 1999
- Rip Current in Indiana, August 29, 1999
- Tornado in Texas, August 29, 1999
- Coastal Flood and Rip Current in Delaware, August 29 to 31, 1999
- Hail in Kansas, August 29, 1999
- Hail and Damaging Wind in South Dakota, August 29, 1999
- Hail in Nebraska, August 29, 1999
- Wildfire in California, August 29 to 31, 1999
- Wildfire in California, August 29 to 30, 1999
- Hail in Nebraska, August 29, 1999
- Flash Flood in Iowa, August 29, 1999
More
Every storm in Colorado in 1999Every state in 1999This day in weather historyWarnings in Colorado, August 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: 5714045.