5:15 p.m. update: There were 22 people evacuated from Rainbow subdivision on Mt. Charleston because of flooding.
The Rainbow Canyon Road which leads to the subdivision from State Route 157 was washed out and is closed.
The Clark County Fire Department reported that three people were safely rescued from a vehicle in the Rainbow area during the early part of the storm.
4:59 p.m. update: A small cell is moving over the east side of Henderson. Brief heavy rain is possible.
4:05 p.m. update: Runoff from rain in the Spring Mountains has caused an additional road closure in northwest Las Vegas. Grand Teton is now closed from Grand Canyon to Oso Blanca.
Grand Teton Drive remains closed from Quail View to Rainbow Boulevard. In addition, Rainbow is closed from Grand Teton to Farm. Farm is also closed from Rainbow to Tenaya.
Drivers should also avoid the intersections of Grand Teton and Tee Pee, and Grand Teton and Grand Canyon. Alternate routes include Gilcrease and Racel.
The roadways have become flooded with a black, mucky combination of water, ash and soot. This is an extremely slippery mixture, and if driven through, is much like driving on ice. Motorists are encouraged to avoid driving through these flows—it is simply very dangerous.
City crews are working to mitigate the flooding.
Dry conditions in the valley don’t necessarily mean dry conditions in the Spring Mountains. Rain in the Spring Mountains can cause flows of ash and soot, which can reach our roads in Northwest Las Vegas.
Stay up-to-date on road conditions and alert us to issues of black muck affecting the roadways on Twitter at twitter.com/cityoflasvegas, or by using #lvroads.
3:50 p.m. update: The Southern Nevada chapter of the American Red Cross has mobilized six disaster teams to help residents affected by flash flooding near the Rainbow Subdivision.
Red Cross spokesman Lloyd Ziel said two of the teams are bringing temporary shelter trailers with cots and blankets in case people are displaced from their homes. It’s unclear how many people, if any, have been displaced, he said.
“It’s a very dynamic situation up there right now,” he said.
3:40 p.m. update: Most of the rain has left the Las Vegas Valley. One moderate cell is dropping rain in the northwest part of the valley, right where water is running off from earlier storms on Mt. Charleston.
There are no cells showing up on radar to the south or west of Las Vegas, so it might be a dry Sunday evening.
3:30 p.m. update: Some residents of the Rainbow subdivision at Mt. Charleston are being evacuated because of heavy flooding.
2:30 p.m. update: The NHP has opened Routes 156, 157 and 158 -- but they could close again.
"We are turning people around if they don't need to be up on the mountain, but with the help of forestry and others we've been able to open the roads back up," Trooper Jeremie Elliott said. "State Route 160 is starting to wash out again at Tecopa Road and we may have to close it soon."
No injuries have been reported to the NHP because of the flooding, Elliott said.
1:45 p.m. update: "It's just a total mess right now," Trooper Jeremie Elliott of the Nevada Highway Patrol says of the Mt. Charleston area.
"Every road is flooding and most residential areas are flooding," Elliott said. "The Rainbow housing tract is flooded the worst and all other residences are beginning to flood."
The NHP has closed State routes 156, 157 and 158 and is considering closing 160 yet this afternoon.
"We had a combination of mud, water and debris threatening 160 again," Elliott said.
The NHP is escorting all people down from the mountain, Elliott said.
12:50 p.m. update: Flash floods have been reported near a residential area on Mount Charleston, prompting Las Vegas Fire and Rescue crews to head up and help the U.S. Forest Service with rescue efforts.
Fire spokesman Tim Szymanski said a 911 caller reported water 4 to 5 feet deep in Rainbow Subdivision. The area is off Kyle Canyon Road, which is also known as state Route 157.
The caller indicated that at least three people were trapped in vehicles and others were stranded on decks of houses, Szymanski said.
A Las Vegas Fire and Rescue truck is en route, he said. No other details were immediately available.
The Nevada Highway Patrol has closed state Routes 157 and 158 because of flash flooding on the mountain, Trooper Jeremie Elliott said. Authorities are considering closing state Route 156 soon.
12:45 p.m. update: State Route 157 was closed shortly after noon because of flooding. The road was damaged during flooding last weekend.
State Route 157 serves motorists from U.S. 95 up through Kyle Canyon to Mt. Charleston.
LAS VEGAS (KSNV MyNews3.com)-- The Mt. Charleston area and northwest Las Vegas is under a flash flood warning until 2:30 p.m. Sunday.
At 11:23 a.m. today National Weather Service's Doppler radar indicated a very heavy rain from a thunderstorm near Fletcher View Campground near Mt. Charleston. The nearly stationary storm was producing very heavy rain.
Areas that might receive flash flooding include Fletcher View Campground, Kyle Canyon Campground, Mary Jane Falls Campground and Centennial Hills.
Heavy rain is falling on the Carpenter 1 burn area. This will cause water and mud flows down Harris Springs Canyon, possibly over Kyle Canyon Road and into the northwest corner of the Las Vegas Valley near Grand Canyon and Grand Teton.
Several streets in the northwest were closed Saturday afternoon because of flooding and remain closed today.
Residents should be ware to stay out of flood waters.