Severe thunderstorms moved across the Las Vegas Valley on Friday afternoon, September 26, 2025. The weather conditions led to flight delays at Harry Reid International Airport, widespread power outages, and the closure of a major shopping mall. Authorities issued flash flood warnings for parts of the region as heavy rain and strong winds impacted local infrastructure.
Key Takeaways
- Flights grounded at Harry Reid International Airport due to thunderstorms.
- Over 13,000 customers experienced power outages across the Las Vegas Valley.
- The Galleria Mall in Henderson closed early due to a power outage.
- Flash flood warnings were issued for southeastern and eastern Las Vegas.
Airport Operations Affected by Storms
Departures from Harry Reid International Airport were halted on Friday afternoon. The Federal Aviation Administration (FAA) confirmed the grounding of flights. This action began shortly after 2:42 p.m. PDT. The decision was made due to the severe weather system approaching the Las Vegas Valley.
Travelers faced significant delays as the storms brought heavy rain, frequent lightning, gusty winds, and hail. Airport officials advised passengers to check their flight status before heading to the airport. The safety of passengers and flight crews remained the top priority during the weather event.
Fact: Flight Grounding
Departures at Harry Reid International Airport were grounded shortly after 2:42 p.m. PDT on Friday due to thunderstorms, according to the FAA.
Widespread Power Disruptions Reported
The severe thunderstorms caused widespread power outages across the Las Vegas Valley. NV Energy reported approximately 82 separate outages. These outages affected more than 13,000 customers shortly before 4 p.m. PDT.
The outages impacted residential areas and commercial establishments. Emergency crews from NV Energy began working to restore power as soon as conditions allowed. The company advised residents to report outages and stay away from downed power lines.
Traffic Signal Failures
In addition to residential and business outages, traffic signals at key intersections also stopped working. The Regional Transportation Commission (RTC) of Southern Nevada reported non-functioning traffic lights at Koval Lane and Tropicana Avenue. Flamingo Road also experienced similar issues shortly after 4 p.m. PDT. These failures led to traffic congestion and increased hazards for drivers.
"Traffic lights not working Koval Ln at Tropicana Ave. on Friday shortly after 4 p.m.," reported the RTC of Southern Nevada.
Understanding Storm Impacts
Thunderstorms in arid regions like the Las Vegas Valley can cause rapid flash flooding due to the hard, dry ground's inability to absorb water quickly. This often leads to significant runoff, impacting roads and infrastructure.
Community Facilities Close, Events Canceled
The impact of the storms extended beyond transportation and power. The Galleria Mall in Henderson announced its closure for the remainder of Friday. Mall employees confirmed the closure was due to a power outage affecting the facility. This disruption impacted shoppers and businesses within the mall.
Local events also faced cancellation. The City of Henderson called off a free outdoor movie screening. This event was planned for Friday night along Water Street Plaza. The cancellation aimed to ensure public safety during the severe weather.
Flash Flood Warnings Issued
The National Weather Service (NWS) of Las Vegas issued multiple warnings throughout the afternoon. A flash flood warning was in effect for the southeastern and eastern parts of the Las Vegas Valley. This warning lasted from 4:08 p.m. to 6:30 p.m. PDT.
Additionally, the Mt. Charleston area was under a flash flood warning until 7:30 p.m. PDT. Earlier in the afternoon, a severe thunderstorm warning covered southwestern Clark County until 3:15 p.m. This warning was issued after strong thunderstorms were observed west of Highway 95 and near Cal-Nev-Ari. These warnings highlighted the risk of sudden and dangerous flooding conditions.
- 4:08 p.m. - 6:30 p.m. PDT: Flash flood warning for southeastern and eastern Las Vegas Valley.
- Through 7:30 p.m. PDT: Flash flood warning for the Mt. Charleston area.
- Until 3:15 p.m. PDT: Severe thunderstorm warning for southwestern Clark County.
Weather Outlook and Safety Measures
The National Weather Service warned residents about the potential for heavy rain, frequent lightning, gusty winds, and hail. These conditions were expected as the storms moved through the valley. Authorities urged residents to take precautions.
Safety recommendations included avoiding flooded roads, staying indoors during lightning, and securing loose outdoor items. Local emergency services remained on alert to respond to any incidents. The community was advised to monitor local news for updates on weather conditions and road closures.
The storms demonstrated the significant impact that sudden weather changes can have on urban infrastructure and daily life in the region. Residents are encouraged to prepare for similar weather events in the future by having emergency kits and staying informed.
