322 FXUS65 KVEF 072116 AFDVEFArea Forecast Discussion National Weather Service Las Vegas NV 215 PM PDT Sun Sep 7 2025
.KEY MESSAGES...
* A drying trend is expected this week as flow becomes more westerly. Relatively cooler temperatures will also overspread the region by mid week.
* Periods of breezy southwest winds through mid week.
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.DISCUSSION...Through next Saturday.
Isolated thunderstorms have been developing this afternoon over the higher terrain of Mohave County as residual monsoon moisture and decent CAPE remains. Due to the lack of any upper support, these storms will continue to mainly develop over the terrain and propagate northeast. Even with the overall decrease in PWAT, the threat of localized isolated flash flooding will still exist through sunset. Storms that are able to form west of the Colorado River will have higher DCAPEs to work with, so the threat of gusty outflow winds are possible this afternoon.
An area of low pressure will move into the Pacific Northwest Monday bringing a drier southwest flow to the region. Most of the area will remain dry, but some isolated storms will still be possible across far eastern Mohave County. The remainder of the area will see sunny skies along with some breezy winds. As the trough continues to moved inland, temperatures become 5-10 degrees below seasonal normals by midweek. This means highs in the low 90s to upper 80s for Las Vegas. The drier air will also bring more relief overnight with cool morning lows, including temperatures in the low 70s in Las Vegas by midweek. Temperatures may start to increase again towards next weekend as the low exits east and heights aloft begin to rise.
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.AVIATION...For Harry Reid...For the 00Z Forecast Package... South to southwest winds 10-12KT with at intermittent gusts to around 20KT through early evening. After sunset, gusts diminish, though southwesterly winds will remain around 10KT overnight. Generally light winds Monday morning with increasing southwest winds with gusts 20-25KT after 18z. VFR conditions expected through Monday.
For the rest of southern Nevada, northwest Arizona and southeast California...For the 00Z Forecast Package...A few isolated thunderstorms into early evening over northwest Arizona with generally clear skies overnight. Most areas will see southwest to west winds with gusts 20-25KT through 03z with winds then decreasing to less than 10KT overnight. Dry conditions areawide Monday with increasing south to southwest winds after 18z to 20-25KT. &&
.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures.
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DISCUSSION...Gorelow AVIATION...Gorelow
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NWS VEF Office Area Forecast Discussion