945 FXUS65 KVEF 072145 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 245 PM PDT Mon Jul 7 2025 .KEY MESSAGES... * Dry conditions and strong winds will result in critical fire weather conditions across portions of southern Nevada the rest of today and tomorrow. * Temperatures will continue to increase each day through mid-week as high pressure builds over the region. An Extreme Heat Watch is in effect for southern Mohave County and the Colorado River Valley on Wednesday as temperatures peak. && .DISCUSSION...through the weekend. Breezy southerly winds, low humidity, and dry fuels will result in critical fire weather conditions across Esmeralda and Nye Counties today and tomorrow. As such, a Red Flag Warning is in effect for Esmeralda County and portions of Nye County today and tomorrow. For more details, see the FIRE WEATHER section below. Hotter than normal temperatures will continue as ridging builds over the region, allowing for temperatures to continue to increase each day through mid-week. An Extreme Heat Watch continues for southern Mohave County and the Colorado River Valley on Wednesday due to hotter than normal temperatures resulting in Major HeatRisk (Level 3 of 4). On Wednesday, temperatures in the lower Colorado River Valley will top out between 110 and 120 degrees while temperatures in the lower elevations of southern Mohave County (e.g., Wikieup, Yucca, Golden Valley, etc.) will top out around 110 to 115 degrees. Temperatures will drop a degree or two from Wednesday to Thursday as a shortwave trough rolls through the Great Basin and knocks 500 mb heights down a bit. Ridging will rebound across the Southwestern US late this week, which will allow for temperatures to heat back up as we head into the weekend. && .FIRE WEATHER...Southerly-to-southwesterly winds will continue across the region this afternoon and again tomorrow as we find ourselves sandwiched between a cut-off low pressure system to our west, off the coast of California, and building high pressure to our east. 20 to 25 mph sustained winds with gusts up to 30-35 mph will pick up each afternoon across Esmeralda and Nye counties. These winds combined with afternoon relative humidities bottoming out in the single digits and critically dry fuels will result in critical fire weather conditions across portions of southern Nevada. A Red Flag Warning is in effect for Nevada fire weather zone 460 today and zones 460 and 462 tomorrow. Recreation with sparks and outdoor burning is not recommended as any fires that start will develop and spread quickly. There may be some need to continue additional Red Flag Warnings on Wednesday but winds may not quite reach criteria. We will assess further overnight. && .AVIATION...For Harry Reid...For the 00Z Forecast Package...South to southwest winds with gusts of 15 to 20 knots into the early evening. Around sunset, winds should go back to the typical southwest drainage direction. VFR conditions under mostly clear skies. Temperatures will exceed 100 degrees thru 04Z. Similar wind and sky conditions are expected on Tuesday. For the rest of southern Nevada, northwest Arizona and southeast California...For the 00Z Forecast Package...Breezy south to southwest winds through the early evening hours, with the strongest gusts over the Sierra crest and the mountains of Death Valley, decreasing around sunset. VFR conditions prevail under mainly clear skies. Similar wind conditions expected on Tuesday but slightly stronger across Inyo, Esmeralda, Nye and Lincoln Counties. An isolated thunderstorm in extreme eastern Mohave County cannot be ruled out on Tuesday afternoon. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION/FIRE WEATHER...Czyzyk AVIATION...Czyyzk For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter