063
FXUS65 KVEF 141142
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
442 AM PDT Mon Sep 14 2026

.KEY MESSAGES...

* Breezy south-southwesterly wind gusts will continue through the
  week with dry conditions and near-normal temperatures.

&&

.DISCUSSION...

The Desert Southwest will remain situated between an upper-level
trough across the Pacific Northwest and a ridge of high pressure
across the southern Plains. As a result, increased pressure
gradients aloft will return gusty south-southwest winds to the
region each day through at least midweek. Expect gust speeds
generally between 25 and 35 mph, though can`t rule out 40 mph
speeds in isolated instances and/or in the higher terrain.
Otherwise, expect mostly dry conditions and temperatures near-
normal. Near-normal for this time of year for desert valleys is
in the upper-90s to lower-100s. Mid-to-late week, confidence
decreases. Ensemble means show a closed area of low pressure
pushing into the southwestern Great Basin Wednesday and Thursday,
then eventually meandering across the southern Great Basin heading
into the weekend. The associated upper-level jet overhead should
provide ample instability to our western zones. When combined with
PWATs between 0.75 and 1.00 inches, portions of northwestern
Arizona could see a return of scattered showers and thunderstorms.
Will continue to monitor as we get closer.

&&

.AVIATION...For Harry Reid...For the 12Z Forecast Package...Gusty
south-southwesterly winds will dominate for a majority of the
forecast period, with gusts to 20-25KT expected through sunset
this evening. Thereafter, sustained speeds will remain around 10KT
through Tuesday morning, when winds are expected to back to the
south. VFR conditions prevail, with temperatures briefly reaching
a high of 100 degrees around 23Z-00Z.


For the rest of southern Nevada, northwest Arizona and southeast
California...For the 12Z Forecast Package...Winds across much of
the region will become elevated and gusty out of the south-
southwest by mid- to late morning, with gusts to 20-25KT common
through this evening before gradually diminishing. Exceptions
include the western Mojave Desert/KDAG, where west-northwesterly
winds are not expected to shift to the southwest until early
evening, with gusts continuing through much of the night, as well
as the northern Owens Valley/KBIH, where winds generally follow
typical daily patterns with speeds around 10KT or less. VFR
conditions will prevail, with isolated thunderstorms expected over
portions of northwestern Arizona this afternoon that are unlikely
to cause any impacts at area terminals.

&&

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

&&

$$

DISCUSSION...Soulat
AVIATION...Phillipson

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