FXUS65 KVEF 180527 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 1026 PM PDT Sun May 17 2026 .KEY MESSAGES... * Expect strong winds, blowing dust, and cooling temperatures through Monday as a trough moves across the region. && .DISCUSSION...through Sunday. Southwesterly winds have begun to develop across the forecast area and they will continue to strengthen throughout the afternoon. The cold front is still just to the north of the area but will begin to push into the northern fringes during the early afternoon hours in places like Bishop and Tonopah. The front should push through the Las Vegas Valley between 7pm and 8pm with the winds shifting abruptly to the northwest. Based on the latest trends with surface pressure gradients and upper level support, the strongest winds should be over Inyo, Esmeralda and Nye Counties where gusts could exceed 70 mph. Keeping an eye on satellite imagery for blowing dust potential and there is beginning to be some hints of blowing dust coming off of some dry lake beds in Mineral County. We'll be watching this closely everywhere this afternoon and evening but particulary in Death Valley National Park and southern Nye Counties. The wind products look in good shape and no changes have been made. Expect widespread gusts between 40 and 55 mph as well as stronger gusts in excess of 60 mph in parts of southern Nevada and southeastern California. Drivers should be prepared for hazardous crosswinds and blowing dust, and boaters should be aware of waves between 2 and 4 feet on Lake Mead, Lake Mohave, and Lake Havasu with potential for higher waves behind the front in the Overton Arm and Lake Mohave tonight. Showers (40-80% probability) and even an isolated thunderstorm with a couple hundred J/kg of CAPE in place across eastern Lincoln and northern Mohave Counties during the afternoon and early evening hours. This strong spring system will exit quickly on Monday and take the stronger winds with it but some gusty northerly winds will linger down the Colorado River Valley throughout the day on Monday. Temperatures will be noticeably cooler areawide on Monday and about 10 degrees below their seasonal normals. That will be short lived as temperatures will climb steadily during the week, reaching back to normal levels by Wednesday and 5 to 10 degrees above normal by late week and into the weekend. && .AVIATION...For Harry Reid...For the 06Z Forecast Package...Gusty south to southwest winds will continue through the morning hours gusts of 30 to 40 knots likely. Winds will gradually diminish through the morning. Periods of low-level turbulence can be expected through the midday Monday. No significant ceilings or visibility concerns are expected through the TAF period For the rest of southern Nevada, northwest Arizona and southeast California...For the 06Z Forecast Package...Strong winds will continue across much of the region through the morning Monday at Las Vegas Valley TAF sites, while strong winds gusting to 30+KT will persist through the day in the Colorado River Valley. No significant ceilings or visibility concerns are expected through the TAF period. && .FIRE WEATHER...Gusty southwesterly winds will continue to strengthen across much of the area this afternoon before a frontal passage causes a shift to the north to northwest this afternoon and evening. There will be widespread gusts between 40 and 55 mph with isolated stronger gusts of 60 to 70 mph+. The strongest winds are expected in Inyo, Esmeralda and Nye Counties. Precipitation is not expected outside of eastern Lincoln County and far northern Mohave County this afternoon and early evening with a few lightning strikes not our of the question (20% probability). Minimum humidity falls to the 10 to 20percent range this afternoon. Elevated to critical fire weather conditions continue where fuels are receptive and a Red Flag Warning remains in effect for northwestern Arizona until 8 PM MST this evening. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION/FIRE WEATHER...Czyzyk AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter