FXUS65 KVEF 180748
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1248 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 06Z Forecast Package...Gusty 
south to southwest winds will continue through the morning hours 
gusts of 30 to 40 knots likely. Winds will gradually diminish 
through the morning. Periods of low-level turbulence can be expected 
through the midday Monday. No significant ceilings or visibility 
concerns are expected through the TAF period

For the rest of southern Nevada, northwest Arizona and southeast 
California...For the 06Z Forecast Package...Strong winds will 
continue across much of the region through the morning Monday at Las 
Vegas Valley TAF sites, while strong winds gusting to 30+KT will 
persist through the day in the Colorado River Valley. No significant 
ceilings or visibility concerns are expected through the TAF 
period.

&&

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

&&

$$

DISCUSSION...Meltzer
AVIATION...Planz

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter