790 FXUS65 KVEF 022252 AFDVEFArea Forecast Discussion National Weather Service Las Vegas NV 350 PM PDT Thu Oct 2 2025
.KEY MESSAGES...
* A low pressure system will bring gusty southwesterly wind to the region on Friday, with increased precipitation chances for the Great Basin and eastern Sierra.
* Beyond tomorrow, temperatures will remain slightly below normal along with dry conditions.
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.DISCUSSION...through Wednesday.
Our next system remains on track to impact southeastern California, southern Nevada, and northwest Arizona tomorrow as a trough swings through the area. This trough will bring gusty southwesterly winds to the region, with multiple wind headlines in effect for portions of San Bernardino County and the Spring Mountains of Southern Nevada, where 40+ mph wind gusts are expected throughout the day tomorrow. Elsewhere, wind gusts will top out in the 30 to 40 mph range with isolated 40+ mph gusts possible in areas of higher terrain. Starting early tomorrow morning, localized 40+ mph southerly downslope winds are expected across Highway 95 near Desert Rock-Mercury. However, due to the isolated nature of these winds, no wind headlines have been issued at this time. Outside of winds, this system will also bring a 30 to 60% chance of isolated showers to the higher terrain of Inyo County and the Great Basin. With snow- levels around 9,000 to 10,000 feet, precipitation is expected to fall as rain outside of the Sierra Crest, where they will see their first dusting of the season with an inch or two possible along the ridgeline.
The progressive nature of this system means that it`ll be out of our area by Saturday. In its wake, drier conditions, cooler temperatures, and lighter breezes. Ensembles continue to indicate a reloading/persistent trough over the western US through the middle of next week, which means the aforementioned conditions are likely to linger, albeit with a slight moderation in temperatures toward seasonable values.
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.AVIATION...For Harry Reid...For the 00Z Forecast Package... Southwest winds with occasional gusts to 20 knots are expected through sunset. Overnight, winds will remain southwesterly while diminishing to around 10 knots. Southwest winds will increase during the morning tomorrow with gusts of 25 to 32 knots developing after 20Z (25% chance of gusts reaching 35 knots). Winds will gradually decrease through the evening, though occasional gusts to 25 knots remain possible through 06Z. VFR conditions prevail with FEW-SCT clouds with bases AOA 25kft AGL through the TAF period.
For the rest of southern Nevada, northwest Arizona and southeast California...For the 00Z Forecast Package...The Las Vegas area TAF sites will see wind conditions similar to those forecast for Harry Reid. Elsewhere, south to southwest winds with gusts up to 25 knots will continue across the western Mojave Desert through the evening. In the Owens Valley, up-valley gusts up to 25 knots are expected this evening before turning northerly and diminishing overnight. West to southwest winds will increase again tomorrow afternoon, with gusts up to 30 knots possible. VFR conditions will prevail with FEW- SCT clouds with bases AOA 20kft AGL through the TAF period, except in the Owens Valley where SCT clouds with bases around 12kft AGL are expected tomorrow afternoon.
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.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures.
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DISCUSSION...Stessman AVIATION...Planz
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NWS VEF Office Area Forecast Discussion