169
FXUS65 KVEF 030401
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
900 PM PDT Tue Jun 2 2026

.KEY MESSAGES...

*  Quiet weather with above normal temperatures anticipated through
   the work week.

*  A trough approaches this weekend, producing some modest
   increase in winds and cooling temperatures slightly.

&&

.DISCUSSION...Through Monday

Quiet weather is expected to continue through at least Friday as
weak ridging keeps the area dry with light winds. Temperatures will
remain above normal through the work week, peaking on Thursday and
Friday as high temperatures climb 5-8 degrees above normal. Moderate
(level 2 of 5) HeatRisk is expected in many valley locations, anyone
sensitive to the heat, people outdoors for long periods of time, and
those without adequate cooling or water should take precautions to
protect from heat-related impacts.

A trough will dig in from the Pacific Northwest and move through the
region this weekend, with model cluster analysis in decent agreement
that a trough will move through but some discrepancy in how strong
the trough will be. Very little moisture is associated with
trajectory and there is minimal response in surface PWATs, so not
expecting any precipitation with this system. The main concern will
be winds as the pressure gradient tightens ahead of the incoming
trough. Probabilities suggest the potential for impactful wind gusts
over 40 MPH through the typical southwesterly wind belt of San
Bernardino County, southern Nevada, and northern Mohave County. The
highest chance for gusts over 40 MPH is Saturday through the Western
Mojave Desert with a 70%+ probability. Will monitor trends with this
system and probabilities for wind impacts as there remains
uncertainty in the strength of the trough which will influence how
strong winds will be. Other than winds, temperatures are expected to
moderate slightly, dropping back closer to normal from their peaks
late in the work week.
&&

.AVIATION...For Harry Reid...For the 06Z Forecast Package...Light
southerly winds are expected for the remainder of the overnight
period, trending to light and variable by daybreak. Similar wind
patterns are expected on Wednesday, although the southwest shift is
expected to occur earlier, likely between 19Z and 22Z. Occasional
gusts to 15 knots are expected once again during the afternoon. VFR
conditions will prevail through Wednesday with passing high clouds
around 25kft AGL. Temperatures Wednesday afternoon will be near 100F
from 22z through 02Z, topping out around 103 degrees.


For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Across the region, winds
will generally remain around 5-10KT and follow typical daily
directional patterns through Wednesday evening. Otherwise, VFR
conditions will prevail with no operationally significant cloud
cover expected.

&&

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

&&

$$

DISCUSSION...Nickerson
AVIATION...Planz/CO

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NWS Las Vegas (VEF) Office