132
FXUS65 KVEF 061150
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
450 AM PDT Thu Aug 6 2026

.KEY MESSAGES...

* Dangerous heat continue through the weekend, with widespread
  Moderate-to-Major Heat Risk as a result of warm temperatures and
  increased humidity.

* Monsoon moisture will increase over the next few days, with best
  shower and thunderstorm chances across northwestern Arizona as
  well as area mountains.

&&

.DISCUSSION...

Heights will continue to climb across the Desert Southwest through
the remainder of the week and into the weekend. As this occurs,
afternoon highs will remain between 8 and 10 degrees above seasonal
normals. Additionally, over the next few days, monsoon moisture will
increase across the region. This will increase the humidity, which
will increase Heat Risk and overnight low temperatures through the
weekend. As a result, the day shift extended the Extreme Heat
Warning and Heat Advisories for the region to continue through
Sunday, August 9th. Next week, moisture, cloud cover, and decreasing
heights will allow temperatures to decrease back toward seasonal
normals. If 110-degree temperatures continue in Las Vegas through
Sunday, it would tie for the longest running stretch of 110s with 11
days in a row. Per the latest NBM, there is a 75 percent chance of
this occurring.

Monsoon moisture is returning to the region, as seen in the latest
ACARS sounding at 04Z, which measured 0.75 inches of PWAT (compared
to Monday`s 0.48 inches). Moisture will continue to climb over the
next couple of days, with between 1.00 and 1.50 inches of PWAT
expected across the forecast area. Best chances of showers and
thunderstorms today exist across northwestern Arizona as well as the
mountains of southeastern California and southern Nevada. The low
levels of the atmosphere remain quite dry, so expect dry lightning
and gusty winds initially, though stronger cells will likely
saturate the entire column, and can result in 0.10 to 0.25 inches of
measured rainfall. Chances of showers and thunderstorms return each
afternoon through the weekend into next week, with best chances in
the higher terrain and northwestern Arizona.

&&

.AVIATION...For Harry Reid...For the 12Z Forecast Package...Light
and variable winds early this morning will settle out of the
southeast mid-morning through late afternoon before veering to the
southwest. Sustained speeds will be around 10-12KT, with sporadic
thermally-induced gusts possible during the afternoon. There is a
10-20% chance for thunderstorms to develop over the higher
terrain surrounding the valley this afternoon, with the main
concern being gusty outflow winds that could impact the terminal.
Otherwise, VFR conditions continue with no operationally
significant cloud cover expected. Temperatures today will exceed
100 degrees between 18Z-05Z, reaching a high of 111.


For the rest of southern Nevada, northwest Arizona and southeast
California...For the 12Z Forecast Package...Winds under 10KT at
issuance will shift to the southeast later this morning,
increasing to around 10-15KT. Higher gusts to 20-25KT will be
possible through the afternoon, especially at KHND in the southern
Las Vegas Valley, and along the Lower Colorado River Valley from
KIFP to KEED where terrain will enhance up-valley winds.
Thunderstorms are expected to develop this afternoon across
northwestern Arizona, with a lower chance over the Sierra and
mountains of southern Nevada. Direct impacts at area terminals are
not expected, though erratic gusty outflow winds will be possible
through mid- to late evening. Outside of convective influences,
winds diminish overnight. VFR conditions prevail, with no
operationally significant cloud cover.

&&

.CLIMATE...Numerous climate locations have a forecast high
temperature and/or forecast warm low temperature within 3 degrees of
the daily record.

The table below shows the daily record maximum temperature and the
year the record was last set. An asterisk (*) denotes which records
are in jeopardy (within 3 degrees of the forecast).

MAX           THU, AUG 6   FRI, AUG 7   SAT, AUG 8   SUN, AUG 9
              Record(Yr)   Record(Yr)   Record(Yr)   Record(Yr)
Las Vegas     114(2024)*   111(2018)*   114(1978)*   114(1940)*
Bishop        106(2024)*   107(1981)*   107(1981)*   107(1981)*
Needles       118(2018)    119(2025)    118(2025)*   117(2004)
Daggett       114(1997)    115(1997)    112(2012)*   113(1980)*
Kingman       109(1920)    110(1920)    107(1915)*   108(1940)
Desert Rock   109(2024)*   111(1981)    109(1978)*   109(2012)*
Death Valley  127(2017)    126(1998)*   125(1978)*   125(2012)*

The table below shows the daily record warm minimum temperature and
the year the record was last set. An asterisk (*) denotes which
records are in jeopardy (within 3 degrees of the forecast).

WARM MIN      THU, AUG 6   FRI, AUG 7   SAT, AUG 8   SUN, AUG 9
              Record(Yr)   Record(Yr)   Record(Yr)   Record(Yr)
Las Vegas     91(2024)     90(2024)*    88(2025)*    87(2025)*
Bishop        69(1979)     71(1983)     68(2024)     65(2022)*
Needles       94(2021)     93(1903)     93(2022)     92(1902)*
Daggett       84(1983)*    86(2024)     85(1978)*    82(2024)*
Kingman       79(2019)*    80(1952)*    79(2025)*    79(2003)*
Desert Rock   82(1994)     82(2025)*    83(1994)     81(2012)*
Death Valley  99(2024)*    99(1947)*    101(1920)*   100(2024)*

&&

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

&&

$$

DISCUSSION...Soulat
AVIATION...Phillipson

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NWS Las Vegas (VEF) Office