These weather patterns are typical for this time of year in Nevada's deserts. Eventgoers should keep an eye on the forecast and prepare for hazardous conditions, the National Weather Service said.
Across the city, power lines and trees are downed, traffic lights are out and glass is scattered across downtown. About 900,000 customers were left without power early Friday.
A severe summer storm system swept from Alabama to New York on Monday, leaving a trail of toppled trees, damaged buildings and transportation headaches in its wake.
The derecho, which raced through the Midwest and focused its attention on Iowa, led to $7.5 billion in damage. That's more expensive than some hurricanes.