Las Vegas has Extreme Heat Warnings and Heat Advisories through Saturday. Daytime temperatures will be 4 to 7 degrees above normal, and overnight lows 6 to 13 degrees above average. "These warm overnight low temperatures will be the primary driver behind elevated HeatRisk levels on Saturday," the National Weather Service said. Temperatures are expected to drop below average next week.
Areas south and east of I-15, along with Lincoln and Inyo Counties, may see thunderstorms with strong outflow winds, flash flooding, and heavy rain of over an inch per hour, according to the National Weather Service. "HiRes models show the best instability over southeastern Mohave County where daytime heating will be the strongest," and "Next week, a weak trough off the CA coast begins to provide upper-level support for more widespread showers and storms," the National Weather Service said.
The aviation sector in the Las Vegas Valley may experience isolated showers and thunderstorms from late morning to late afternoon, with gusty downburst winds affecting flights. "These winds and associated convection may be enhanced if any outflow boundaries move across the region," the National Weather Service said. Outside these events, VFR conditions are expected, with cloud ceilings mostly above 10,000 feet. The National Weather Service asks weather spotters to report observations to help improve forecasts and warnings.
