Debris Flow, Coos
- When
- May 10, 12:55 AM EST
- Where
- Coos County, Columbia
- Reported by
- NEWSPAPER
- Coordinates
- 44.690, -71.305 (the zone’s center; the record gives no point)
Debris Flow in New Hampshire, May 10, 2000
Continued heavy rains caused a 60-yard-long section of hillside in Columbia just north of the Columbia Bridge to collapse. The soil flowed out to the centerline of Route 3.
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 GYX wrote it up.
Continued heavy rains caused a 60-yard-long section of hillside in Columbia just north of the Columbia Bridge to collapse. The soil flowed out to the centerline of Route 3. It reportedly took 12 dump trucks loads to haul away the 40-ft long, 2-foot deep mound of dirt left by the slump.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 debris flow. Local standard time, as filed.
What these are
- Debris Flow
- A fast-moving slurry of mud, rock and debris, usually on a slope soaked by heavy rain or stripped by a fire.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Flood in New York, May 10 to 11, 2000
- Hail and Lightning Strike in Connecticut, May 10, 2000
- Flash Flood and Hail in Pennsylvania, May 10 to 11, 2000
- Hail and Damaging Winds in Maryland, May 10, 2000
- Flash Flood and Hail in New York, May 10, 2000
- Hail and Damaging Winds in Nebraska, May 10, 2000
- Flash Flood and Hail in New York, May 10, 2000
- Hail and Damaging Winds in South Dakota, May 10 to 11, 2000
- Flooding in New York, May 10 to 17, 2000
- Hail and Damaging Wind in North Carolina, May 10, 2000
- Lightning Strike in Ohio, May 10, 2000
- Hail and Damaging Winds in Virginia, May 10, 2000
More
Every storm in New Hampshire in 2000Every state in 2000This day in weather historyWarnings in New Hampshire, May 2000
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: 5145498.