Las Vegas residents and visitors should brace themselves for another day of showers and thunderstorms. The forecast indicates that frequent lightning strikes, gusty winds, and periods of moderate rainfall are to be expected as the weather system continues to impact the area. The National Weather Service also notes, "Warmer and drier conditions return once the system exits," with high temperatures anticipated to exceed the seasonal average by the upcoming weekend.
The short-term forecast details that areas in Lincoln, Clark, eastern San Bernardino, and Mohave counties will experience the highest moisture levels, with "The greatest moisture will be in Lincoln, Clark, eastern San Bernardino, and Mohave counties, with the highest PWATS in the 200 to 250 percent range (0.8 to 1.0 inch) along the Colorado River Valley." The National Weather Service warns of strong outflow winds in the 30 to 40 mph range and isolated to scattered thunderstorms, particularly intense from Lincoln county this morning transitioning to Clark and northern Mohave counties later in the day.
As the system moves, more consistent bands of precipitation are set to develop in San Bernardino and southern Mohave counties throughout the evening and overnight. "The main concern during this time is precipitation amounts in the region around the Colorado River," with rain rates that could approach 0.2 inches per hour and the potential for minor flooding, cumulating daily totals that could reach 0.5 inch in some locales, as stated by the National Weather Service.
Looking ahead, by Wednesday, a significant warming trend is on the horizon. The National Weather Service shares, "Large scale ridge will build across the Western US through Saturday, resulting in a sharp warming trend through the week along with a return to dry conditions." With triple digits quite likely in lower elevations such as the Colorado River Valley and Death Valley, Las Vegas faces a 25 percent chance of reaching a sweltering 100 degrees on Saturday, potentially marking the earliest 100-degree day since 2020.
In aviation-related updates, the National Weather Service issued for Harry Reid and other regional airports, alerting of potential MVFR/IFR conditions due to low clouds and the chance of thunderstorms post-18Z, which could prompt erratic and gusty outflow winds, alongside lightning and heavy rainfall interruptions. The notice emphasizes that winds will generally stay below 8KT, with direction being influenced by showers or storms in the vicinity. Such unsettled weather could lead to improvements by Wednesday morning with a rise in ceilings and dispersion of clouds.
Lastly, local weather spotters are called upon to remain vigilant and report significant weather occurrences or impacts as the city treads through this severe storm system. The National Weather Service values these citizen reports for their contribution to comprehensive weather forecasting and monitoring within the community.
