FXUS65 KVEF 081752
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1052 AM PDT Wed Jul 8 2026

.KEY MESSAGES...

* Dry conditions and warming temperatures will continue through the 
  end of the week.

* Monsoonal moisture begins increasing this weekend, resulting in
  increased chances for showers and thunderstorms early next week.

&&

.DISCUSSION...Today through Tuesday.

High pressure builds aloft and temperatures are on the rise through 
the rest of the week. Afternoon high temperatures will top out 
between 5 and 7 degrees above normal and Las Vegas has a 40 to 50 
percent chance of a high of at least 110 degrees each afternoon 
between Thursday and Saturday. Hot daytime temperatures combined 
with warm overnight low temperatures will result in widespread 
Moderate (Level 2 of 4) with pockets of Major (Level 3 of 4) Heat 
Risk for most locations. This level of heat will affect those who do 
not have access to sufficient cooling and hydration, as well as 
those who are especially vulnerable to heat related illnesses. The 
position of the high should maintain dry conditions and afternoon 
breezes, which prompt elevated fire weather conditions across much 
of the region today and tomorrow. 

A classic monsoon setup develops this weekend as high pressure 
becomes established over the Four Corners region and southerly flow 
advects moisture into the Desert Southwest. PWAT values of an inch 
or more cover areas along and southeast of Interstate 15 on Sunday, 
at which point the best precipitation chances will exist over high 
terrain in northwestern Arizona. Moisture increases and POPs spread 
north through the first half of next week, generally favoring high 
terrain where orographic lift favors thunderstorm formation. Finer 
details on timing and location of storms should become more apparent 
over the next few days. Other than storm potential, lowering heights 
aloft and the moisture influx should help lower temperatures by a 
few degrees. 
&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...Winds
will shift to the southwest early in the forecast period, 
increasing to around 10-15KT with gusts to 20-25KT through the 
afternoon. Gusts are expected to diminish quickly after sunset 
with the loss of heating, with winds becoming light and variable 
by daybreak. Following a similar pattern on Thursday, winds shift 
to the southeast by mid-morning, then veer to the southwest during
the afternoon with another round of gusts to 20-25KT expected 
thereafter. VFR conditions with clear skies will continue, with a 
high temperature of 109F and temperatures exceeding 100F through 
04Z this evening, and again on Thursday after 18Z.


For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Winds across much of
the region will shift to the south- southwest this afternoon, 
with gusts to 20-25KT common through sunset. An exception to this 
will be in the northern Owens Valley including KBIH, where winds 
generally follow daily patterns until mid-afternoon, when a push 
of westerly winds around 10-15KT is expected through sunset, 
followed by a northeasterly shift before winds become light and 
settle out of the northwest overnight. At KDAG in the western 
Mojave Desert, winds generally remain westerly, with periodic 
gusts to around 25KT through midnight. Tonight, winds become 
lighter across the area, with another round of elevated/gusty 
southerly to southwesterly winds developing late in the period. 
VFR conditions with no operationally significant cloud cover will 
continue.

&&

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

&&

$$

DISCUSSION...Meltzer 
AVIATION...PhillipsonFor more forecast information...see us on our webpage:
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