703 FXUS65 KVEF 051720 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 1020 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 18Z Forecast Package...Light southeast to south winds are expected to settle into a southwesterly direction by mid-afternoon. Confidence in the timing of the switch is low, and it may occur anytime between 19Z and 22Z. Speeds will increase to 10 to 15 knots with occasional gusts to 23 knots possible through the evening. There is the potential for a brief lull in the winds around and shortly after sunset, but winds will remain breezy through most of the night. Southwest winds will increase once again by mid-morning Saturday, and gusts to 30 knots are possible by Saturday afternoon. VFR conditions will persist through Saturday morning, with FEW high clouds with bases AOA 15kft AGL overspreading the area by Saturday afternoon. Temperatures will climb above 100 degrees again this afternoon from 19Z through 03Z, topping out around 106 degrees. Temperatures are forecast to exceed 100F again on Saturday between 20Z and 01Z. For the rest of southern Nevada, northwest Arizona and southeast California...For the 18Z Forecast Package...Breezy south to southwesterly winds will spread across much of the area this afternoon, with most areas experiencing occasional gusts of 15 to 25 knots through sunset. The usual exception will be across the western Mojave Desert near KDAG, where light winds are expected through the afternoon, followed by gusty westerly winds after 22Z. Winds will diminish in all areas overnight with gusts ending, but gusty southwest winds of 20 to 30 knots will redevelop in most areas by Saturday afternoon. VFR conditions will persist through the TAF period with no operationally significant cloud cover through tonight, then FEW to SCT high clouds with bases AOA 15kft AGL overspreading the southern half of the region Saturday morning and afternoon. && .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/FIRE WEATHER...Gorelow AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter