008
FXUS65 KVEF 102222
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
325 PM PDT Thu Jul 10 2025


.KEY MESSAGES...

*  Hot and dry conditions will likely continue through the weekend
   and into early next week as ridging persists across the region.

&&

.DISCUSSION...This afternoon through the middle of next week.

Broad ridging will remain over the forecast area into next week,
although the exact placement and intensity of the ridge will vary at
times. Through the weekend, long-range ensembles are in agreement
that the area of high pressure will remain centered over southern
California, maintaining slightly above-normal height anomalies
through Saturday.  This will result in temperatures remaining above
normal, along with keeping light winds and mainly clear skies. By
late in the weekend and early next week, model ensembles indicate
that the ridge will shift eastward, which is expected to increase
temperatures by a few degrees. Patchy areas of Major HeatRisk levels
return Sunday and Monday across the Mojave Desert, and to a lesser
extent in the Colorado River Valley.  Starting from Tuesday on,
heights begin to fall as an easterly wave moving into eastern Mexico
pushes the ridge to the west.  This wave may also introduce some
moisture in the area by the second half of the week, which would
also help to keep readings down. There is also a low chance for
precipitation on Wednesday across northwest Arizona, but confidence
is low on if and where rain may occur.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...Light
and variable winds continue through late afternoon before the
typical southwest-to-west winds will develop around 01Z.  Light and
variable winds return by daybreak, followed by a more typical wind
progression tomorrow, with northeast winds in the late morning,
southeast winds in the afternoon, and southwest winds in the
evening.  Speeds tomorrow are expected to remain 8 knots or less,
except for random gusts to 15 knots during the afternoon due to
intense heating.  VFR conditions will prevail through tomorrow at
the field.  Reduced slantwise visibilities are possible north of the
valley due to smoke from a wildfire burning on the Nevada Security
Site.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Conditions at the Las
Vegas area terminals will be similar to those described for Harry
Reid, except winds at KHND will favor a more south-to-southwest
direction tomorrow.  Elsewhere, northerly winds of less than 10
knots are forecast for KBIH through tomorrow morning before turning
southerly tomorrow afternoon.  Gusty westerly winds will persist at
KDAG, with a typical decrease expected during the late morning and
afternoon hours.  In the Colorado River Valley, southerly winds with
occasional gusts to 25 knots are expected into the early evening,
followed by light winds overnight. VFR conditions will prevail
through tomorrow across the region. Reduced slantwise visibilities
are possible across portions of southern Nevada north of the Las
Vegas Valley, and far eastern southern California due to smoke from
a wildfire burning on the Nevada Security Site.

&&

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

&&

$$

DISCUSSION...Planz
AVIATION...Planz

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