Moapa Valley, Nevada 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

383
FXUS65 KVEF 252204
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
304 PM PDT Wed Jun 25 2025

.KEY MESSAGES...

* Temperatures gradually rising to near to above normal this
  weekend and early next week, resulting in Moderate to Major Heat
  Risk.

* Slow return of moisture mid to late next week with thunderstorm
  chances increasing toward the July 4th holiday weekend and
  beyond.

&&

.DISCUSSION...
Our stretch of below to near normal temperatures is coming to a
close. This will occur as weak upper troughing is replaced by
zonal flow, and eventually amorphous upper ridging this weekend
into early next week. This will result in rising heights and
temperatures increasing a degree or two each day. Even with hotter
temperatures, given our regular heat this time of year, Heat Risk
is only indicating Moderate to briefly Major values early next
week. This appears too marginal and brief to warrant
consideration of Extreme Heat headlines at this time, but it
warrants monitoring if temperatures come in slightly warmer than
currently projected.

Ensembles point to the establishment of a broad weak upper low
off the SoCal coast early next week. This with a stout upper ridge
poised over the Four Corners region puts the Desert Southwest in
an optimal Monsoon configuration for moisture return. While the
first half of next week generally looks relatively dry for this
time of year, ensembles do reflect a surge in Gulf of California
moisture with PWAT values approaching 1 inch or slightly more
across the CA deserts, southern NV and western AZ. The Climate
Prediction Center has also published key messages around slight
chances for heavy rainfall in the July 4-9 timeframe. Thus, it
appears confidence is increasing that we may enter our first real
episode of Monsoon showers and thunderstorms right in time for the
July 4th holiday weekend. This could mean an increased risk of
thunderstorms containing lightning, strong winds, and heavy
rain/flash flooding. Will continue to monitor as we get into next
week and details become clearer.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...
A diurnally influenced wind pattern is generally expected to
persist over the next 24-36 hours. Wind speeds should generally
remain 10 knots or less, though a few gusts to 15 knots may occur
through 02-03z. Winds may also briefly shift to the southeast
between 00z and 05z before becoming more west/southwest this
evening. Winds then look to become variable then north/northeast
shortly after sunrise. Temperatures are still on track to hover
near 100 degrees from now through around 01z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...A diurnal wind
pattern will persist with winds generally 10 knots or less at most
terminals aside from KDAG, where westerly winds of 10-15 knots
are expected during the overnight hours. Otherwise mostly clear
skies and VFR conditions are on tap.

&&

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

&&

$$

KEY MESSAGES/DISCUSSION/AVIATION...Austin


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