FLOOD WARNING: Stay updated as heavy downpours, thunderstorms drench Las Vegas Valley

LAS VEGAS (KTNV) — A flash flood warning was issued for the Las Vegas Valley on Friday, with heavy rainfall expected throughout much of Southern Nevada.

We're tracking the latest updates on weather and traffic as they happen:

Saturday, Sept. 2

6:47 p.m. — NV Energy reports over 2600 customers are being impacted by power outages in Clark County and the Las Vegas valley.

5:50 p.m. — All lanes on I-15 near mile marker 8, just south of Jean, are shut down due to severe flooding. Traffic is being diverted around mile markers 9 and 10.

4:10 p.m. — Clark County officials have announced several road closures throughout the valley related to flash flooding, including:

• Gilespie Street and East Maulding Avenue near Warming Springs, east of Las Vegas Boulevard
• Jones Boulevard and Pyle, south of Blue Diamond Road
• Jones Boulevard and Gunderson Avenue
• Alexander Road and Puebla Street
• West Calico Basin Road
• Ranch Road by the Warm Springs loop in Moapa
• State Route 169 at Lewis in Overton

3:22 p.m. — NV Energy reports that around 5,293 residents have been affected by power outages across the valley.

3:10 p.m. — All lanes on northbound US-95 at Russell Road due to flash flooding in the area, according to the Nevada Department of Transportation.

2:39 p.m. — A severe thunderstorm warning has been issued for the northeast Las Vegas valley until 3:30 p.m. by the National Weather Service. Residents in the area should expect 60 mph winds, large hail, and heavy rain.

1:28 p.m. — The flash flood warning issued for the Las Vegas valley has been extended until 5:00 p.m. on Saturday, according to an alert from the National Weather Service.

11:58 a.m. — Las Vegas Fire and Rescue officials report around 24 swift water rescues on Friday night. Crews responded to 30-35 vehicles stranded in water and 10-12 people rescued from standing or moving water.

8:04 a.m. — Spring Mountain Ranch State Park will remain closed Saturday morning while park staff clear roadways impacted by Friday's heavy rainfall, according to a statement on the park's social media.

A Yoga on the Meadow event scheduled for Saturday morning has been canceled, officials said.

Friday, Sept. 1.

9:31 p.m. — A flash flood warning for the Las Vegas Valley and surrounding areas was extended through 1:30 a.m., according to an emergency alert from the National Weather Service.

9:15 p.m. — Clark County warned residents about potentially dangerous water levels in the Tropicana Detention Basin after Friday's rainfall. Motorists are strongly urged to use caution and find alternate routes in the following areas surrounding Allegiant Stadium:

• Tropicana Avenue and Interstate 15
• Tropicana Avenue and Decatur Boulevard
• Russell Road and Decature Boulevard
• Russell Road and Interstate 15

"County personnel are monitoring water levels at the basin and are proactively urging caution as rain continues to fall," officials stated.
7:19 p.m. — Valley residents using the RTC bus system are advised to expect delays on all routes due to weather conditions, according to the Regional Transportation Commission of Southern Nevada.

7:18 p.m. — All lanes southbound lanes of Rainbow Boulevard before Blue Diamond Road are blocked by flooding, the Regional Transportation Commission of Southern Nevada stated. Drivers were advised to use an alternate route.

6:01 p.m. — More than 4,000 NV Energy customers throughout the Las Vegas Valley are without power, according to an outage report from the utility company. NV Energy's outage map showed at least 30 outages were impacting an estimated 4,278 customers primarily in the southwest valley, central valley and downtown.

5:48 p.m. — The Las Vegas Aviators game vs. the Salt Lake Bees was postponed due to inclement weather and field conditions at Las Vegas Ballpark, according to the Aviators organization. The two teams will instead play a double-header beginning at 4:05 p.m. on Saturday, Sept. 2.

5:43 p.m. — Hundreds of flights at Harry Reid International Airport have been delayed or canceled due to the poor weather conditions. At least 673 flights were delayed and at least 108 had been canceled, according to the airline tracking website Flight Aware.

Thunderstorms moving through the area also caused a ground delay at Reid International. That is scheduled to last until 12:59 a.m. Flight delays are up to three hours, based on the Federal Aviation Administration's website.

5:36 p.m. — All lanes are blocked at South Rancho Drive and Teddy Drive due to flooding in the roadway, according to the Regional Transportation Commission of Southern Nevada. Drivers were advised to use an alternate route.

5:33 p.m. — Northbound travel to Pahrump was shut down due to flooding, according to the Nevada Department of Transportation. Northbound lanes of state Route 160 were shut down at state Route 159.

4:54 p.m. — Right lanes of northbound Rainbow Boulevard are blocked at Tropicana Avenue due to flooding in the roadway, according to the Regional Transportation Commission of Southern Nevada.

4:26 p.m. — Drivers are urged to avoid the area of Eastern Avenue under U.S. 95 due to flooding in the roadway, according to the Regional Transportation Commission of Southern Nevada.

4:15 p.m. — More than 6,500 NV Energy customers are without power throughout the Las Vegas Valley. The utility company hasn't laid out a timeline on when those outages would be fixed.

NV Energy

4:13 p.m. — Las Vegas Fire and Rescue shares details on two swift-water rescues Friday morning. Fire officials say crews had to clear six vehicles that were stuck in the water near Sahara Avenue and Decatur Boulevard and near Charleston Boulevard and Commerce Street.

3:35 p.m. — First Friday in downtown Las Vegas is canceled due to inclement weather, organizers told Channel 13.

3:32 p.m. — Drivers in the northeast valley are urged to find an alternate route due to flooding in the roadway on Cheyenne Avenue at North Las Vegas Boulevard and on Cheyenne Avenue at Pecos Road, according to the Regional Transportation Commission of Southern Nevada.

3:16 p.m. — Clark County reports crews are making progress on repairing an 8-foot wide, 10-foot deep sinkhole that opened up in the northbound lanes of Jones Boulevard near Gunderson Boulevard overnight. Sand, dirt and rock were used to fill up the hole, which will be topped with an asphalt patch, county officials stated. That lane will remain blocked off through the weekend as a safety precaution, they added.

2:50 p.m. — The National Weather Service issued a flash flood warning for the greater Las Vegas area, which is scheduled to last until 5:45 p.m.

2:39 p.m. — All northbound and southbound lanes of Nellis Boulevard are blocked by flooding after Boulder Highway, the Regional Transportation Commission of Southern Nevada stated. Drivers were advised to use an alternate route through the area.

2:18 p.m. — The Federal Aviation Administration issued a ground stop for all flights at Harry Reid International Airport due to inclement weather. The ground stop order is expected to last until 2:45 p.m.

2:10 p.m. — The grand opening of Queen Las Vegas, a new LGBTQ+ friendly hotel on Las Vegas Boulevard, is postponed until further notice. The hotel was expected to hold a ribbon cutting event featuring Mayor Carolyn Goodman at 4 p.m. on Friday.

"We regret to inform that our beautiful Queen got caught in the rain and ruined her makeup yesterday evening in the storm," a spokesperson wrote. "After assessing minor water and electrical damage, Queen Las Vegas proprietor Eduardo Cordova has made the difficult decision to postpone the day and evening’s festivities so Queen can be ready for her close-up once again."

11:29 a.m. — Rain from the overnight storm caused a large sinkhole to open up on Jones Boulevard in Spring Valley, Clark County officials confirmed.

The hole, estimated at 8 feet wide and 10 feet deep, opened in the northbound lanes of Jones near Gunderson Boulevard, which is just south of Flamingo Road. County officials say a Southwest Gas line was exposed and crews are on scene to make repairs and fill the hole.

"Motorists are advised to use caution in the area," a county spokesperson stated.

9:50 a.m. — NV Energy reports at least 3,860 of its customers are without power in the Las Vegas Valley due to overnight storms. Most of the outages were concentrated in the downtown area, according to the company's online outage map, with several outages also reported in Spring Valley and North Las Vegas.

5:20 a.m. — A severe thunderstorm warning was ordered for south-central Clark County from 5:15 a.m. to 6:45 a.m., according to the National Weather Service.

With this increasing moisture, NWS Las Vegas says cooler temperatures can be expected for the Labor Day weekend. Officials say there are chances of gusty southerly winds and increased precipitation in the Vegas area on Friday, Saturday, and Sunday.

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