266 FXUS65 KVEF 052005 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 105 PM PDT Fri Jun 5 2026 .KEY MESSAGES... * Quiet weather and above-normal temperatures stick around today. * Expect increasing southwest winds and cooling temperatures this weekend and into next week. && .DISCUSSION...through Thursday. Our stretch of calm and unseasonably warm weather culminates today. Temperatures are forecast to be nearly identical to yesterday, with 100-110 generally across the Mojave Desert and 90s in the southern Great Basin and Arizona Plateau. This results in widespread moderate HeatRisk with a pocket of major HeatRisk in the Las Vegas Valley where overnight lows remain elevated thanks to urban influences. Some temperature relief arrives this weekend and continues into next week as troughing settles over the western US. Afternoon highs are forecast to be near normal values for early/mid June. With the better forcing staying north and limited moisture, precipitation chances are likely to be confined to the Great Basin. PoPs across our southern Great Basin zones only get up to ~20% early next week. The main story with this trough is going to be the increase in southwest wind and fire danger. Chances for 40+ mph gusts on Saturday are moderate (40-50%), but not quite high enough to justify issuing a Wind Advisory. Won't be surprised to see a few gusts of 40- 45 mph in the Kingman and Barstow areas, but these should be fairly sporadic and localized. However, boating impacts appear more likely (70%), thus have opted to issue a Lake Wind Advisory for Lake Mead and Lake Mohave on Saturday. Winds subside slightly on Sunday but tick back up next week as the trough gets reinforced. There remains some uncertainty in exactly how strong/impactful the winds may be during this time, but will certainly be enough to keep fire danger elevated. && .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 of 15-25 mph with gusts around 35 mph on Saturday. Combined with minimum RH values of 5-15% and fuels approaching critical, Red Flag Warnings cover all of southern NV and northwestern AZ except for Nevada Zone 460. The warning continues on Sunday for northwest AZ and the NV side of the Colorado River Valley. Near to critical fire weather conditions look likely to persist into early next week as the trough reloads. A Fire Weather Watch has been issued for all of our AZ zones and most of our NV zones on Monday and Tuesday. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION/FIRE WEATHER...Woods AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter