Flash Flood, San Juan
- When
- August 27, 2:00 PM MST to 2:30 PM MST
- Where
- San Juan County, 8 mi S of Silverton
- Property damage
- $2,000
- Reported by
- NEWSPAPER
- Coordinates
- 37.764, -107.676 (the zone’s center; the record gives no point)
Flash Flood in Colorado, August 27, 1999
A flash flood came down across a section of the Durango and Silverton Narrow Gauge Railroad tracks and washed away much of the ballast.
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 GJT wrote it up.
A flash flood came down across a section of the Durango and Silverton Narrow Gauge Railroad tracks and washed away much of the ballast.
The radar
The Grand Junction radar (KGJX), 152 km away, was scanning. The volume nearest the first event began at 20:58 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
- Flash Flood in New York, August 27, 1999
- Damaging Wind in Louisiana, August 27, 1999
- Damaging Wind in Arizona, August 27, 1999
- Waterspouts in Florida, August 27, 1999
- Damaging Winds and Lightning Strike in Oklahoma, August 27, 1999
- Flash Flood in Utah, August 27, 1999
- Lightning Strike in Idaho, August 27, 1999
- Damaging Winds in South Dakota, August 27, 1999
- High Wind in Alaska, August 27 to 28, 1999
- Damaging Wind and Heavy Rain in Colorado, August 27, 1999
- Funnel Cloud in Nevada, August 27, 1999
- Hail in Oklahoma, August 27, 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: 5713911.