788
FXUS65 KVEF 042333
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
333 PM PST Tue Nov 4 2025

.KEY MESSAGES...

* A shortwave passing to the north of the region will result in
  increased winds across the region on Wednesday, especially along
  the eastern Sierra Slopes where a Wind Advisory is in effect.
  Additionally, a slight chance of precipitation is expected along
  portions of the eastern Sierra, along with cooler temperatures
  on Thursday in the wake of the system.

* Friday onward, warm, dry conditions are expected as temperatures
  remain above normal.

&&

.DISCUSSION...

Over the Pacific Northwest this afternoon, the next trough to
impact our region is coming ashore, and will dampen as it
translates eastward across the Great Basin tonight and Wednesday.
While a bulk of the energy associated with this system and its
attendant jet will remain just north of the area, a return of
breezy to windy conditions is expected beginning tonight across
western areas, and expanding areawide through Wednesday afternoon.
The highest confidence for impactful winds is across the eastern
Sierra Slopes, particularly for locations west of Big Pine to west
of Bishop, and especially in the vicinity of Aspendell. Sustained
winds up to 45 mph are expected there from late tonight through
Wednesday evening, with gusts upwards of 55 mph (intermittently
higher gusts possible, especially at higher elevations). While
there is some signal for impactful downsloping winds along
portions of US-395 in the Owens Valley and across US-95 in the
vicinity of Desert Rock-Mercury, the duration of these winds will
be brief, and the potential for 40+ mph gusts very localized.
Elsewhere, gusts to 20-35 mph will be common, with winds
diminishing areawide through Wednesday evening as the wave slides
eastward. In addition to the winds, there remains a slight chance
for a wintry mix of rain and snow in the eastern Sierra in
northwestern Inyo County, though QPF remains very low, with under
1" of snow forecast along the crest. While temperatures Wednesday
will be similar to today for most of the area, a cooldown is
expected Thursday in the wake of the system, though with highs in
the lower 70s to mid 80s for most, temperatures will remain above
normal for early November.

Friday onward, a subtle warming trend is expected as quasi-zonal
flow gives way to high-amplitude ridging, with high temperatures
expected to top out around 5 to 10 degrees above normal through
early next week. Given the ridging, light winds and dry conditions
will once again be the rule.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...Winds
8KT or less following diurnal directional patterns will continue
through late Wednesday morning. Thereafter, winds are expected to
veer to the south and southwest by early to mid afternoon,
increasing to 10-15KT with gusts to around 20-25KT. These gusty
southwesterly winds are expected to continue thereafter through
the end of the forecast period. VFR conditions will prevail, with
FEW-SCT clouds around 25kft AGL overspreading the area by
sunrise, and FEW mid-level clouds around 15kft AGL by early
afternoon.



For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Winds across the
region will generally follow typical diurnal directional patterns
through early Wednesday afternoon. Thereafter, winds shift to the
south-southwest and become elevated and gusty, with gusts to
20-25KT common. One exception will be through the Owens Valley,
including BIH, where gusty up-valley winds are expected to
increase to around 22-28KT overnight onward, and in the Lower
Colorado River Valley in the vicinity of EED where strong gusts
are not expected to develop. Winds will increase across the
mountains of southeastern California overnight, yielding increased
turbulence to the lee of the mountain ranges through Wednesday.
Otherwise, VFR conditions prevail, with mid and high clouds around
between 15-25kft AGL overspreading the area tonight through
Wednesday, and persisting at BIH for the duration.

&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.

&&

$$

DISCUSSION/AVIATION...Phillipson


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NWS Flagstaff Office