008 FXUS65 KVEF 102222 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 325 PM PDT Thu Jul 10 2025 .KEY MESSAGES... * Hot and dry conditions will likely continue through the weekend and into early next week as ridging persists across the region. && .DISCUSSION...This afternoon through the middle of next week. Broad ridging will remain over the forecast area into next week, although the exact placement and intensity of the ridge will vary at times. Through the weekend, long-range ensembles are in agreement that the area of high pressure will remain centered over southern California, maintaining slightly above-normal height anomalies through Saturday. This will result in temperatures remaining above normal, along with keeping light winds and mainly clear skies. By late in the weekend and early next week, model ensembles indicate that the ridge will shift eastward, which is expected to increase temperatures by a few degrees. Patchy areas of Major HeatRisk levels return Sunday and Monday across the Mojave Desert, and to a lesser extent in the Colorado River Valley. Starting from Tuesday on, heights begin to fall as an easterly wave moving into eastern Mexico pushes the ridge to the west. This wave may also introduce some moisture in the area by the second half of the week, which would also help to keep readings down. There is also a low chance for precipitation on Wednesday across northwest Arizona, but confidence is low on if and where rain may occur. && .AVIATION...For Harry Reid...For the 00Z Forecast Package...Light and variable winds continue through late afternoon before the typical southwest-to-west winds will develop around 01Z. Light and variable winds return by daybreak, followed by a more typical wind progression tomorrow, with northeast winds in the late morning, southeast winds in the afternoon, and southwest winds in the evening. Speeds tomorrow are expected to remain 8 knots or less, except for random gusts to 15 knots during the afternoon due to intense heating. VFR conditions will prevail through tomorrow at the field. Reduced slantwise visibilities are possible north of the valley due to smoke from a wildfire burning on the Nevada Security Site. For the rest of southern Nevada, northwest Arizona and southeast California...For the 00Z Forecast Package...Conditions at the Las Vegas area terminals will be similar to those described for Harry Reid, except winds at KHND will favor a more south-to-southwest direction tomorrow. Elsewhere, northerly winds of less than 10 knots are forecast for KBIH through tomorrow morning before turning southerly tomorrow afternoon. Gusty westerly winds will persist at KDAG, with a typical decrease expected during the late morning and afternoon hours. In the Colorado River Valley, southerly winds with occasional gusts to 25 knots are expected into the early evening, followed by light winds overnight. VFR conditions will prevail through tomorrow across the region. Reduced slantwise visibilities are possible across portions of southern Nevada north of the Las Vegas Valley, and far eastern southern California due to smoke from a wildfire burning on the Nevada Security Site. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION...Planz AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter |