FXUS65 KVEF 200716
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1216 AM PDT Wed May 20 2026

.KEY MESSAGES...

* Warming trend continues through Memorial Day Weekend, with 
  afternoon highs climbing to 6 to 8 degrees above-normal.

&&

.DISCUSSION...Today through Tuesday.

Today will be the coolest day of the forecast period as heights rise 
over the region in the wake of last weekend's windy trough. The 
Desert Southwest will remain situated between an eastern Pacific 
area of high pressure to the west and persistent troughing in the 
central CONUS to the east. As a result, expect occasional breezy 
afternoons as shortwave troughs ride along our northwest flow aloft. 
HeatRisk will peak Saturday through Monday, with widespread Minor 
(Level 1 on a scale of 0 to 4), and pockets of Moderate (Level 2) in 
the lower desert valleys such as Death Valley, Moapa Valley, and the 
Colorado River Valley. Increased outdoor activity can be expected 
with the holiday weekend, so people are encouraged to bring along 
with them plenty of water, sunscreen, and take frequent breaks in 
the shade and/or air conditioning. There is a continued signal that 
unsettled weather returns for the middle of next week, but details 
are murky at this time. Stay tuned to the forecast if you have 
travel or outdoor recreation plans! 
&&


.AVIATION...For Harry Reid...For the 06Z Forecast Package... 
Northeasterly winds will become northwesterly overnight, dropping 
to around 5-10KT, before veering to the northeast again by late 
Tuesday morning. Winds thereafter will remain around 8KT or less, 
gradually veering to the southeast through the afternoon and 
becoming variable after sunset. VFR conditions will continue with 
a few high clouds around 25kft expected to move into the area 
Tuesday evening.

For the rest of southern Nevada, northwest Arizona and southeast 
California...For the 06Z Forecast Package...Winds areawide will drop 
to around 5-10KT through the night with gusty northerly winds 
returning by mid-morning at the Colorado River terminals. Gusts will 
peak at around 25KT through mid-afternoon. Elsewhere, winds will 
generally remain under 10KT. VFR conditions prevail areawide, with 
bands of high clouds around 25kft across southern areas this 
evening, and increasing mid-level and high clouds from the north 
late in the period.
&&


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

&&

$$

DISCUSSION...Soulat
AVIATION...Berc

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