817 FXUS65 KVEF 050731 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 1230 AM PDT Fri Jun 5 2026 .KEY MESSAGES... * Quiet weather and above-normal temperatures continue through the end of the work week. * Expect increasing southwest winds and cooling temperatures this weekend and into next week. && .DISCUSSION...Today through Thursday. Ridging will remain in place through today, bringing another day of temperatures around 10 degrees above normal. Widespread areas of Moderate Heat Risk, with pockets of Major Heat Risk in the Las Vegas Valley, Colorado River Valley, and Death Valley. We will start to see cooling temperatures beginning Saturday as an area of low pressure pushes into the Pacific NW, resulting in an elongated trough along the western US. The main impact from this trough will be increasing southwest winds with speeds generally 20 to 25 mph with gusts to around 35 mph, with stronger winds in the higher terrain. Due to the combination of strong gusty winds, low relative humidity, and critical fuels, a Fire Weather Watch has been issued for southern Nevada and northwestern Arizona. Winds will begin to subside Sunday over southern Nevada, but remain gusty across portions of northwest Arizona. Temperatures will cool an additional 4 to 7 degrees Sunday putting temperatures close to normal for this time of year. A second piece of energy is expected to help deepen the trough Monday and Tuesday helping to once again increasing wind speeds and keep the ongoing fire weather danger in place. Temperatures will also continue to cool with highs on Tuesday and Wednesday potentially a few degrees below normal. Generalized troughing will persist through the next work week, with a modest uptick in moisture on Tuesday. That said, negligible chances of precipitation at this time. && .AVIATION...For Harry Reid...For the 06Z Forecast Package...Southwest winds will remain around 8-10KT through much of the night before becoming light and variable early Friday morning. Increasing south to southwest winds are expected Friday afternoon which will be similar to today as south winds around 8KT will become southwest and gust after 21Z. The south winds Friday may vary 160- 190 degrees at times before becoming southwest. Gusts Friday afternoon will be a bit higher than what occurred today with gusts to around 20KT. Winds will dissipate after sunset Friday evening. VFR conditions with clear skies will persist through the period. Temperatures will climb over 100 degrees again Friday 19Z through 03Z. For the rest of southern Nevada, northwest Arizona and southeast California...For the 06Z Forecast Package...Light winds following typical directional patterns are expected in most locations overnight. The exception is around KDAG where west winds at 10-15KT will continue through much of the night. Similar trends are expected on Friday to what occurred today with light winds increasing out of the south to southwest in the afternoon. Gusts Friday afternoon will be slightly strong than today at 20-25KT. Winds will diminish after sunset as they usually do. VFR conditions will persist through the period. && .FIRE WEATHER...Widespread southwest winds between 15 and 25 mph expected on Saturday, with gusts near 35 mph. Afternoon relative humidities will range between 5 and 10 percent, with up to 15 percent in the higher elevations of southern Nevada and northwestern Arizona. Combined with critical fuels, a Fire Weather Watch has been issued for Arizona Zones 101 and 102 and Nevada Zones 461, 462, 465, and 466 on Saturday... with the Arizona Zones persisting into Sunday. Near to critical fire weather conditions will likely persist into the middle part of next week as this trough pattern remains set up over the Desert Southwest with a continuation of gusty winds and low humidity. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION...Gorelow AVIATION...Nickerson For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter