FXUS65 KVEF 181035
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
335 AM PDT Mon May 18 2026

.KEY MESSAGES...

* Today's weather includes cool temperatures and decreasing winds
  before a warming trend takes place through the rest of the week.

&&

.DISCUSSION...through Sunday.

The trough responsible for yesterday's winds is centered over the 
Nevada-Utah state line as of midnight PDT/MST and will continue to 
move east this morning. Wind speeds will decrease areawide in 
response. Wind Advisories and High Wind Warnings remain in effect 
until 5 AM PST/MST this morning for most locations. Northerly winds 
remain in the Colorado River Valley this morning with gusts between 
30 and 40 mph, which will bring waves of 2 to 4 feet on area lakes. 
A High Wind Warning will continue until 11 AM PDT/MST, but these 
winds will weaken in the afternoon. Also of interest is notably 
cooler temperatures today, with highs 10 to 15 degrees below normal 
for mid-May. This means highs in the upper 70s to low 80s for the 
Mojave Desert Valleys including Las Vegas and highs in the 60s to 
low 70s in the southern Great Basin and Owens Valley. However, these 
unseasonably cool temperatures will be short lived as high pressure 
rebuilds over the West Coast throughout the week. Highs return to 
near normal values by Wednesday and climb to 5 to 10 degrees above 
normal by Friday, lasting through the weekend.

&&

.AVIATION...For Harry Reid...For the 12z Forecast 
Package...Northerly winds with gusts of 20-30 knots will continue 
through the morning hours before gradually easing in the afternoon. 
Wind direction will shift more northeasterly in the afternoon hours 
with wind speeds becoming 8 to 12 knots. Winds will shift back to 
the northwest late Monday night before resuming northeasterly 
direction Tuesday by late morning. Otherwise, mostly clear skies are 
expected. 

For the rest of southern Nevada, northwest Arizona and southeast 
California...For the 12Z Forecast Package...Northerly wind 
directions are favored for most of the region on Monday with morning 
gusts in the 15 to 25 knot range. Exception will be along the 
Colorado River Valley near KIFP and KEED where gusts of 25 to 35 
knots are possible. Wind gusts will gradually ease areawide by late 
in the day. Mostly clear skies are expected. 

&&

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

&&

$$

DISCUSSION...Meltzer
AVIATION...Outler

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