831
FXUS65 KVEF 281853
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1153 AM PDT Tue Apr 28 2026

.KEY MESSAGES...

* Isolated shower and thunderstorm activity possible in the Sierra
  and southwestern Great Basin this afternoon.

* Warming trend will continue through the week with unsettled
  weather returning late-weekend.

&&


.DISCUSSION...Today through Monday.

A shortwave embedded in the upper-level flow will move through the
Mojave Desert this afternoon, allowing for a renewed chance of
isolated showers and thunderstorms in the Sierra and southwestern
Great Basin. Rainfall amounts will remain less than a tenth of an
inch, with totals above 0.05" confined to the higher terrain and
embedded thunderstorms. Expect wind gusts between 20 and 30 mph from
the direction of the shower activity.

Ridging building over northern Mexico will allow temperatures to
gradually warm up through the week, with temperatures 6 to 8 degrees
above seasonal normal by Friday. A closed low pressure system will
weaken as it pushes into Baja California Wednesday night into
Thursday, bringing a very modest surge of moisture into the Desert
Southwest. Resultant precipitation chances have fluctuated a bit,
with slight (10-20 percent) PoPs still lingering in the outer edges
of the CWA Wednesday into Thursday. That said, any precipitation
that falls is expected to remain light. Heading into the weekend,
temperatures will continue to increase under mostly clear skies. The
next weather system to impact our forecast area will drop down the
California Coast late-weekend into early next week, which will
increase precipitation chances, increase southwesterly winds, and
decrease temperatures.
&&


.AVIATION...For Harry Reid...For the 18Z Forecast Package...Winds
remain light and follow typical, daily patterns. Chance of 10+ knots
is only ~10%, and any instances would be brief. Mostly clear skies
with just a few mid-level and high clouds.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Light winds and dry
conditions anticipated across most of the region today and tonight.
Westerly breezes expected this evening across the western Mojave
Desert, but otherwise winds remain around 10 knots or less. Only
chance of precipitation is in Esmeralda and northern Inyo County
where a few showers/virga appear poised to develop this afternoon
and evening (10% chance of thunder). Coverage may be enough to
produce CIGs between 8-10kft along with brief periods of erratic
winds below.
&&


.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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NWS Las Vegas (VEF) Office