A weather system is expected to bring changes to Las Vegas and surrounding areas on Saturday. "Isolated showers and thunderstorms producing gusty winds but little rainfall will mainly be limited to Northwest Arizona and the far eastern Mojave Desert today with generally dry conditions elsewhere," as reported by the National Weather Service. A weak low pressure system over Arizona will continue to support showers in Mohave County through Saturday, with some activity possibly extending toward the Colorado River Valley by the evening. Temperatures will be slightly warmer due to reduced cloud cover. On Saturday, a "very strong and slow moving weather system" is expected to bring more widespread showers, thunderstorms, and gusty winds.
A weather system will affect the region through Monday, bringing cooler temperatures and wind. "The most widespread precipitation should occur on Sunday, particularly across the southern Great Basin," as stated by the National Weather Service. A winter weather advisory is in effect for the eastern Sierra above 8000 feet from Saturday evening through late Sunday due to expected snow. Breezy southerly winds are forecast across the region, with a wind advisory in place for the Barstow area Saturday and Saturday night. High temperatures will drop 10–15 degrees on Sunday and another 5–10 degrees by Monday, mainly in eastern areas. "The coverage of showers and thunderstorms on Tuesday will definitely be reduced in comparison to Monday."
Winds at Harry Reid International Airport will be light and variable this morning, turning northeast before shifting again in the afternoon. "Isolated convection is expected in northwest Arizona this afternoon and high resolution guidance is in good agreement that outflow from these storms will impact the terminal area sometime between 00Z and 06Z this evening," according to the National Weather Service. These outflows may carry dust into the Las Vegas Valley and reduce visibility. Rain chances for the Colorado River Valley are low, and winds are expected to stay under 12 knots. Weather spotters are asked to report any significant conditions following standard procedures.
