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Death Valley National Park rain: ‘A 1,000-year event’
How rare was the heavy weekend rain at Death Valley National Park?

Let Daniel Berc, meteorologist with the National Weather Service in Las Vegas explain: “The heavy rain that caused the devastating flooding at Death Valley was an extremely rare 1,000-year event,” Berc said Sunday in a news release from the National Park Service. “A 1,000-year event doesn’t mean it happens once per 1000 years, rather that there is a 0.1% chance of occurring in any given year.”
Nearly a year’s worth of rain fell in three hours, flooding roads, parking lots and buildings in the park on the California-Nevada border. The 1.46 inches at Furnace Creek is still preliminary data, and mere drops away from the all-time record of 1.47 inches.
Major impacts include the loss of a critical portion of the Cow Creek water system that serves some park residences as well as park facilities, including the Emergency Operations Building and maintenance yard. Over 600 feet of the water main was blown out by flash floods, causing catastrophic system damage, according to the news release.

Several miles of roadway have moderate to severe asphalt damage with hundreds of miles battered by debris.
Conditions are still being assessed, but some damage makes makes access by vehicles to several areas impossible, the agency said.
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