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Flash Flood in Los Alamos County, New Mexico

Flash Flood August 3, 2011 · Los Alamos County, New Mexico

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Both Highway 4 and 501 were closed in the Jemez Mountains due to flooding. Heavy rains on the Las Conchas burn scar caused significant runoff and debris flow over the roadways. At least a 50 yard stretch of debris several inches deep was noted along State Highway 501. Both roads had to be cleared by the Highway Department before traffic was allowed to pass.

The wider storm

One of the most active monsoonal days occurred on August 3rd, with heavy rains noted across much of the state. However, the biggest impact came to the recently burned areas, particularly to the Las Conchas and White Fire burn scars. Minor flooding was reported across many other locations, including around Abo, Folsom, and Grants. A few storms also reported severe wind gusts in outflow boundaries, including around White Sands Missile Range. Even a landspout formed in the Albuquerque metro area.

Began near Los Alamos (35.8396, -106.3525).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 321551. Narratives are written by the National Weather Service forecast office that issued the report.

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