964
FXUS65 KVEF 281705
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
905 AM PST Fri Nov 28 2025

.KEY MESSAGES...

* Late-weekend system is trending weaker, with only a modest
  temperature drop and wind increase expected. Another system will
  approach midweek, though details remain uncertain at this time.

&&

.DISCUSSION...Today through Thursday.

We have been anticipating the approach of an area of low pressure
this weekend, with the potential for the return of unsettled
weather. However, this low`s track has trended further west and
south such that it will avoid our forecast area entirely before
stalling in the southeastern Pacific Ocean. Meanwhile, our
persistent northwest flow aloft will allow for the passage of a
shortwave Inside Slider during the latter half of the weekend into
early next week. This system will drop temperatures by 4 to 6
degrees between Sunday and Monday and will increase northerly
afternoon breezes (10-20 mph areawide, with 25-35 mph in the
Colorado River Valley) Monday afternoon. Otherwise, the northwest
flow aloft continues through the work week, allowing for additional
shortwave passages to return breezy afternoons. The most robust
shortwave looks to drop through the southern Great Basin and Mojave
Desert midweek. The exact trajectory of this trough will determine
precipitation chances for the area, as a westward trajectory will
allow for Pacific moisture uptake and an eastward trajectory will
keep the system dry. The current forecast favors the eastward
trajectory, with 20-30% PoPs across the Mojave Desert, but with
negligible accumulations. Expect a return of gusty north winds
Wednesday and Thursday as the associated cold front passes through
the forecast area. That said, not expecting a noticable change in
temperatures at this time. Will continue to monitor this system`s
forecast trajectory and strength as we move through the weekend.

&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...Winds
remain light and follow typical, daily patterns throughout the TAF
period. Chance of seeing 10+ knots is under 10% today, but ~25% on
Saturday. Mostly clear skies today with widespread high clouds
moving in early Saturday morning.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Winds across most of the
region remain light and follow typical, daily patterns today. Skies
remain mostly clear until widespread high clouds move in from the
west overnight. Gusty north winds begin to develop in the lower
Colorado River Valley Saturday morning, with gusts 20-30 knots
expected.

&&

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

&&

$$

DISCUSSION...Soulat
AVIATION...Woods

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