817
FXUS65 KVEF 050731
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1230 AM PDT Fri Jun 5 2026

.KEY MESSAGES...

* Quiet weather and above-normal temperatures continue through the
  end of the work week.

* Expect increasing southwest winds and cooling temperatures this
  weekend and into next week.

&&


.DISCUSSION...Today through Thursday.

Ridging will remain in place through today, bringing another day of
temperatures around 10 degrees above normal. Widespread areas of
Moderate Heat Risk, with pockets of Major Heat Risk in the Las Vegas
Valley, Colorado River Valley, and Death Valley. We will start to
see cooling temperatures beginning Saturday as an area of low
pressure pushes into the Pacific NW, resulting in an elongated
trough along the western US. The main impact from this trough will
be increasing southwest winds with speeds generally 20 to 25 mph
with gusts to around 35 mph, with stronger winds in the higher
terrain. Due to the combination of strong gusty winds, low relative
humidity, and critical fuels, a Fire Weather Watch has been issued
for southern Nevada and northwestern Arizona. Winds will begin to
subside Sunday over southern Nevada, but remain gusty across
portions of northwest Arizona. Temperatures will cool an additional
4 to 7 degrees Sunday putting temperatures close to normal for this
time of year. A second piece of energy is expected to help deepen
the trough Monday and Tuesday helping to once again increasing wind
speeds and keep the ongoing fire weather danger in place.
Temperatures will also continue to cool with highs on Tuesday and
Wednesday potentially a few degrees below normal. Generalized
troughing will persist through the next work week, with a modest
uptick in moisture on Tuesday. That said, negligible chances of
precipitation at this time.
&&

.AVIATION...For Harry Reid...For the 06Z Forecast
Package...Southwest winds will remain around 8-10KT through much of
the night before becoming light and variable early Friday morning.
Increasing south to southwest winds are expected Friday afternoon
which will be similar to today as south winds around 8KT will become
southwest and gust after 21Z. The south winds Friday may vary 160-
190 degrees at times before becoming southwest. Gusts Friday
afternoon will be a bit higher than what occurred today with gusts
to around 20KT. Winds will dissipate after sunset Friday evening.
VFR conditions with clear skies will persist through the period.
Temperatures will climb over 100 degrees again Friday 19Z through
03Z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Light winds following
typical directional patterns are expected in most locations
overnight. The exception is around KDAG where west winds at 10-15KT
will continue through much of the night. Similar trends are expected
on Friday to what occurred today with light winds increasing out of
the south to southwest in the afternoon. Gusts Friday afternoon will
be slightly strong than today at 20-25KT. Winds will diminish after
sunset as they usually do. VFR conditions will persist through the
period.
&&


.FIRE WEATHER...Widespread southwest winds between 15 and 25 mph
expected on Saturday, with gusts near 35 mph. Afternoon relative
humidities will range between 5 and 10 percent, with up to 15
percent in the higher elevations of southern Nevada and northwestern
Arizona. Combined with critical fuels, a Fire Weather Watch has been
issued for Arizona Zones 101 and 102 and Nevada Zones 461, 462, 465,
and 466 on Saturday... with the Arizona Zones persisting into
Sunday. Near to critical fire weather conditions will likely persist
into the middle part of next week as this trough pattern remains set
up over the Desert Southwest with a continuation of gusty winds and
low humidity.
&&


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

&&

$$

DISCUSSION...Gorelow
AVIATION...Nickerson

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