Yucca Valley, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

388
FXUS65 KVEF 181928
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1228 PM PDT Thu Jun 18 2026

.KEY MESSAGES...

* Dry conditions and elevated winds will result in critical fire
  weather conditions tomorrow.

* Temperatures will increase next week as high pressure builds
  over the Southwestern US.

&&

.DISCUSSION...Today through Wednesday.

A shortwave trough will approach the West Coast tomorrow, resulting
in breezy southerly to southwesterly winds picking up across the
region. For the most part peak wind gusts will be in the 25 to 35
mph range, with isolated 40+ mph wind gusts in areas of higher
terrain. These winds, combined with low afternoon humidity will
result in critical fire weather conditions across southern Nevada
and northwestern Arizona - see the FIRE WEATHER section below for
further details. In addition to critical fire weather conditions,
this shortwave will also cause temperatures to "cool" a few degrees,
with more seasonal temperatures over the weekend.

Ridging will build in over the Southwestern US beginning early next
week. As 500 mb heights increase, so will temperatures with
high temperatures topping out around 5 to 10 degrees above normal
by the middle of the week. This will result in widespread
Moderate HeatRisk (Level 2 of 4) across the area with pockets of
Major HeatRisk (Level 3 of 4) beginning to pop up in lower
elevation valleys like the Colorado River Valley and Las Vegas
Valley. This level of heat will affect anyone without sufficient
cooling or hydration, especially those spending time outdoors.

&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...
Southerly to southwesterly winds around 10KT will continue into the
early afternoon before increasing out of the south 12 to 15 knots
with intermittent gusts of 20 to 25 knots from mid-afternoon through
sunset, with wind directions varying between 160 and 190 degrees
true. Winds will then shift to the southwest after sunset, although
speeds are expected to remain between 10 to 13 knots through much of
the night. Wildfire smoke from fires north of the Las Vegas Valley
will mainly impact the Mormon Mesa corridor through the period, but
reduced visibility near the terminal is not expected. Otherwise, VFR
conditions will prevail through the TAF period. Temperatures will
exceed 100F through 04Z, peaking near 107F around 00Z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package... South to southwest
winds will occur over much of the region today with speeds generally
10 to 15 knots with gusts 20 to 25 knots. The exception today will
be KDAG where easterly winds around 8 knots are expected this
afternoon, returning to the west around 00Z with gusts 20 to 25
knots. Wildfires in Lincoln County will help produce lofted smoke
which may impact portions of the southern Great Basin through the
afternoon, otherwise FEW-SCT clouds between 14-15kft.

&&

.FIRE WEATHER...A shortwave trough will approach the West Coast
tomorrow, resulting in southerly to southwesterly winds picking up
across the region. 20 to 25 mph sustained winds with gusts up to 35
mph are expected across southern Nevada and northwestern Arizona
late Friday morning through Friday evening. These elevated winds
combined with afternoon relative humidities in the single digits to
low teens will result in critical fire weather conditions across
southern Nevada and northwestern Arizona. Given these critical
conditions, the Fire Weather Watch has been upgraded to a Red Flag
Warning.

&&

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

&&

$$

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

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