Chalfant, California Weather Forecast Discussion

373
FXUS65 KVEF 120439
AFDVEF
Area Forecast Discussion
National Weather Service Las Vegas NV
940 PM PDT Thu Sep 11 2025
.KEY MESSAGES...
* Low pressure brings breezy afternoon winds, below average
  temperatures, and isolated precipitation through tomorrow.
* Dry conditions and increasing temperatures return this weekend
  and early next week.
&&
.DISCUSSION...through Wednesday.
Breezy and relatively cool conditions persist as an area of low
pressure slowly tracks east through the Great Basin today and
tomorrow. Current satellite imagery shows cumulus development over
the Sierra, White Mountains, and the mountains of Esmeralda County.
CAMs suggest that isolated thunderstorms will develop over this area
this afternoon and evening, some of which may produce frequent
lightning and gusty outflow winds. Another round is possible
tomorrow before dry and descending air arrives on the back side
of the low. Breezy southerly to southwesterly winds will decrease
this evening and should be lighter tomorrow as the center of the
low moves overhead. Tomorrow should be the coolest day of the
forecast period, with highs 5 to 10 degrees below average for this
time of year. For Las Vegas, highs will be in the upper 80s to
low 90s.
Heights aloft rise as the low tracks east over the next few days.
Temperatures gradually increase in response, with highs reaching
near to above normal values Monday through Wednesday. This means
highs in the mid to upper 90s for Las Vegas. Besides increasing
temperatures, expect light winds and dry conditions.
&&
.AVIATION...For Harry Reid...For the 06Z Forecast
Package...Light winds under 8KT following typical wind patterns are
expected through Saturday morning. Southwest winds overnight will
diminish by Friday morning, then become east around 5KT in the
afternoon. Winds will switch back to the west or southwest after
sunset Friday. VFR conditions will prevail through the period.
For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Showers and
thunderstorms that developed in the Sierra and Owens Valley have
ended, with dry weather and typical wind patterns expected the rest
of the night across the region. The chance for showers and thunders
returns to the Sierra and Owens Valley on Friday, a bit earlier than
today around 21Z. Light, sudden gusty winds, and CIGs to 8000ft
would be possible with any storms including in KBIH. Elsewhere it
will remain dry. Winds should remain light in most locations, though
gusts to around 20KT are possible Friday afternoon in the Colorado
River Valley. And elevated winds that do develop Friday afternoon
will quickly end around sunset.
&&
.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&
$$
DISCUSSION/AVIATION...Meltzer/Nickerson
For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

NWS VEF Office Area Forecast Discussion