Weather Service Report


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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Western Regional Climate Center, wrcc@dri.edu