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Storms cause flooding in Nev., Southern Calif.

Posted: September 12, 2012 7:00 a.m.
Updated: September 12, 2012 7:00 a.m.

University of Nevada, Las Vegas students Ryan Klorman, top, and Markus Adams, relax on inflatable pool toys in floodwater on Tuesday.

 

LAS VEGAS (AP) — Intense thunderstorms drenched parts of the Southwest on Tuesday, delaying flights and stranding motorists in the Las Vegas area and flooding two mobile home parks in Southern California.

East of downtown Las Vegas, television news video showed yellow school buses inching slowly along swamped roads in some neighbors and muddy brown water up to the lower window sills of stucco homes in others.

A Twitter photo showed dozens of cars submerged in water up to their headlights in a parking lot outside a University of Nevada, Las Vegas sports arena.

The National Weather Service issued severe thunderstorm and flash-flood warnings before and after almost an inch of rain was reported at McCarran International Airport just before 2 p.m.

Departures were postponed and arrivals were delayed after the airport ordered a stop on fueling operations during lightning strikes, airport spokeswoman Linda Healey said.

Firefighters responded to more than 20 calls about people in stalled cars, county spokesman Dan Kulin said. A Las Vegas police helicopter was dispatched during the height of the storm to pluck several people from swamped vehicles on area roadways, Officer Bill Cassell said.

After responding to numerous 911 calls, officials in Clark County, North Las Vegas, Henderson and Las Vegas said Tuesday there were no confirmed reports of serious injuries.

National Weather Service meteorologist Michael Staudenmaier said more than 1.75 inches of rain were reported in downtown Las Vegas.

The rainfall amounts put the region on pace to exceed the 4.5 inches of rain it normally gets in a year, he said.

However, National Weather Service meteorologist Scott Sukup said the Nevada showers weren't part of the same storm system that doused parts of Southern California.

There, a thunderstorm that dropped more than the average annual rainfall on parts of the Coachella Valley in one night alone caused flooding at two mobile home parks, forced road closures and dampened a school, officials said Tuesday.

The early morning thunderstorm stalled for six to eight hours over Mecca and Thermal, two towns at the southern tip of the Coachella Valley 150 miles southeast of Los Angeles. Thermal is about eight miles from Indio, Calif., where the annual Coachella Music Festival is held.

The storm dropped 5.51 inches of rain near Mecca and 3.23 inches of rain near Thermal, meteorologist Mark Moede said. The average annual rainfall in Thermal is just shy of 3 inches, he said.

"That's an amazing amount of rain," Moede said. "It's unusual anywhere to get a storm that sits stationary for five to eight hours. The fact that it occurred in the southern part of the Coachella Valley is even more unusual because it's typically a very arid part of the country."

In Thermal, the downpour flooded the Desert Mobile Home Park better known as Duroville, causing the park to lose one of its wells and creating concerns about overflow from sewage ponds used to treat waste, said Ray Smith, a Riverside County spokesman.

County fire crews assessed the water and electrical systems and were providing water to the park. Residents also were advised to boil water, he said.

Several Duroville homes remained without power late Tuesday afternoon. About 1,400 people live in the park, but it wasn't immediately clear if any evacuated due to the flooding. A voluntary evacuation center was established in Mecca.

St. Anthony's Mobile Home Park in Mecca also was affected, Smith said, but fared better than Duroville. Video clips showed Mecca residents wading through streets with water reaching their knees and cars creeping through flooded residential streets.

Flooding also was reported at Mecca's Saul Martinez Elementary School, but students doubled up in some classes and the school remained open, The Desert Sun newspaper reported.

Meanwhile, some southern Utah residents also were dealing with flooding because of a broken dike.

Officials in Santa Clara were inspecting whether people could return to more than 30 homes and businesses that were evacuated after the Tuesday break flooded nearly four square blocks.

City Manager Edward Dickie said the dike along a retention pond broke open after heavy morning rains, sending a deluge of water into downtown.

"It didn't just breach. It broke. It's gone," he said, adding that the flooding quickly receded as water drained into rivers and creeks.

Some streets through town remained closed late in the day as authorities assessed the damage and waited for floodwaters to recede. No injuries were reported.

Crews used sandbags to shore up the broken dike and stave off the potential for additional flooding if the rain returns.

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