902 FXUS65 KVEF 242128 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 229 PM PDT Thu Jul 24 2025 .KEY MESSAGES... * Below-normal temperatures and afternoon southerly breezes expected to continue through the weekend before temperatures heat up next week. * In general, dry conditions continue through the weekend into early next week. Monsoonal moisture increases across Arizona, resulting in precipitation chances for Mohave County mid-to-late week. && .DISCUSSION...Today through Thursday. A persistent, loitering closed low off the southern California coast will allow for continued below-normal temperatures across the Desert Southwest through the weekend. The resultant southwesterly flow aloft will help to elevate southerly breezes each afternoon across the forecast area, with peak gusts between 15 and 25 mph. The aforementioned closed low will weaken into an open wave over the weekend before getting swept away by a trough growing across the western CONUS. Meanwhile, a ridge of high pressure will continue to build and retrograde across the southern CONUS, which will increase heights over our region, allowing temperatures to climb back to at- or-above normal next week. The dry southwest flow aloft as a result of the closed low off the southern California coast will keep afternoon relative humidity values in the single-digits and precipitation chances near-zero through the weekend. The exception will be along the eastern Sierra Crest, where there is a 10-15 percent chance of isolated shower and thunderstorm activity today and Friday afternoon. Next week, a retrograding area of high pressure over the southern CONUS will help usher monsoonal moisture into the Desert Southwest. In general, this moisture will funnel into Arizona and New Mexico, as a trough digging through the western CONUS will limit moisture advection further west. Slight (20-40 percent) chances of showers and thunderstorms exist across Mohave County Tuesday through Thursday. Moisture content looks modest (0.50 - 0.75"), making erratic gusty winds and frequent lightning the primary concerns. && .AVIATION...For Harry Reid...For the 00Z Forecast Package... South-southwest gusts continue around 20 kts through the afternoon. Speeds will decrease after sunset. Expect similar winds on Friday. FEW-SCT move in this evening aoa 25 kft. Best chance of temperatures at or above 100 degrees exists around 00Z. For the rest of southern Nevada, northwest Arizona and southeast California...For the 00Z Forecast Package...Breezy southerly winds will pick up across the region today, with gust speeds around 20 kts for the Las Vegas Valley and Colorado River Valley TAF sites and around 25 kts for KBIH and KDAG. Gust speed and frequency will decrease after sunset, with similar winds expected on Friday. FEW- SCT move in this evening aoa 25 kft. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION/AVIATION...Soulat For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter