Area Forecast Discussion
Issued by NWS Las Vegas, NV

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FXUS65 KVEF 270915

Area Forecast Discussion
National Weather Service Las Vegas NV
215 AM PDT Sat May 27 2017

.SYNOPSIS...Recreational and other outdoor activities are favored
this Memorial Day weekend with a period of quiet weather setting up
for the area. Expect temperatures to be near normal today and then
warm to well above normal by Memorial Day. Winds overall are
expected to be light.

.SHORT through Monday night.

Essentially looking at a building ridge of high pressure through the
period. Temperatures are expected to increase daily beginning with
near seasonal temperatures today warming to about 6-8 degrees above
normal on Monday with Sunday falling somewhere in between. Expect
sunny and dry conditions through the weekend with high clouds
rolling in on Memorial Day. Winds are expected to be generally light
with some afternoon gustiness in places.

.LONG TERM...Tuesday through Friday. The main concern is still the
evolution of the next trough over the West during this period.
Models have come into slightly better agreement, which is not saying
much given previous runs. Thus, confidence remains below average.
Tuesday will be another day of ridging and temperatures well above
normal before troughing begins to affect the West on Wednesday. As
noted by previous shifts, and still the case this morning, there is
a lot of model spread regarding the depth, track, and timing of the
trough, so confidence is very low in the details. The overall trend
should be for temperatures to come down closer to normal, and there
could also be a few thunderstorms mainly over the higher terrain
nearer the cooler temperatures aloft under the axis of the trough
(wherever that ends up being). Raised PoPs somewhat Wednesday over
the mountains in the northwest quarter of the CWA, but made little
change elsewhere. Will address further changes on future shifts if
the models start to zero in on a most likely solution.

.AVIATION...For McCarran...Winds will favor a typical diurnal
pattern with an east to southeast direction prevailing through the
day and southwest at night. Clear skies and VFR conditions
through the period.

For the rest of southern Nevada, northwest Arizona and southeast
California...Diurnally driven winds generally 10 knots or less are
favored for today. Dry and clear conditions are expected through the

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


LONG TERM...Morgan

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