109
FXUS65 KVEF 051137
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
437 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 12Z Forecast Package...Light
and variable winds will increase slightly and settle in from the
south-southeast later this morning/early this afternoon. These
south-southeasterly winds will continue through mid-afternoon when
10 to 15 knot southwesterly winds will pick up, accompanied by
gusts to around 20 knots. These breezy southwesterly winds will
continue into the evening hours, with a brief lull around sunset.
Wind gusts will drop off during the overnight hours, with winds
maintaining a southwesterly direction. Breezy southwesterly winds
will pick back up on Saturday morning. VFR conditions will persist
through the TAF period with no operationally significant cloud
cover. Temperatures will climb over 100 degrees again this
afternoon from 19Z through 03Z, topping out around 106 degrees.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 12Z Forecast Package...Winds will remain
relatively light, following typical diurnal directional patterns
through later this morning when breezy southerly to southwesterly
winds will pick up. These breezy southerly winds will continue
into the evening hours, before dropping off overnight. The
exception will be the western Mojave Desert, including KDAG, where
winds will favor a more westerly direction this afternoon and
evening. VFR conditions will persist through the TAF period with
no operationally significant cloud cover.

&&

.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/FIRE WEATHER...Gorelow
AVIATION...Stessman

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NWS Las Vegas (VEF) Office