FXUS65 KVEF 201735
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1035 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 18Z Forecast Package... 
Northeast wind under 10 kts becoming southeast by mid afternoon. 
Winds will shift to the typical southwest direction after sunset. 
East winds will develop mid morning and become more southeasterly 
during the afternoon. VFR conditions can be expected through the 
period, with a few scattered high clouds with bases AOA 15kft AGL 
moving in after 00Z Thursday. 

For the rest of southern Nevada, northwest Arizona and southeast 
California...For the 18Z Forecast Package...Gusty northerly winds 
will continue in the Colorado River Valley again today, with gusts 
of 20 to 25 knots expected at KIFP and KEED. Elsewhere, winds will 
generally remain under 10 knots through Thursday and winds will be 
much lighter down the Colorado River Valley on Thursday. VFR 
conditions will prevail areawide, with a few scattered high clouds 
with bases AOA 15kft AGL moving from north to south across the 
region late this afternoon through Thursday morning. 
&&


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

&&

$$

DISCUSSION...Soulat
AVIATION...Czyzyk

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