Area Forecast Discussion
Issued by NWS Las Vegas, NV

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FXUS65 KVEF 270913

Area Forecast Discussion
National Weather Service Las Vegas NV
213 AM PDT FRI MAY 27 2016

.SYNOPSIS...Temperatures over the holiday weekend will edge
closer to normal for late May with a threat of afternoon and evening
thunderstorms primarily over the higher terrain of the southern
Great Basin and Mojave Desert. Elsewhere, mostly sunny to partly
cloudy skies are expected. Above normal temperatures will develop by
the middle of next week with the first bout of widespread triple
digit heat across the Mojave Desert.

.SHORT TERM...Today through Sunday.

Weak troughing will be over the area through the holiday weekend
with scattered clouds and a slight chance of showers and isolated
thunderstorms primarily over the higher terrain in northern Inyo and
south central Nevada. It looks like convection will be limited today
with troughing just beginning to form along the coast and model
stability progs showing only marginally unstable LIs and low end
CAPE values over the Sierra. Better potential exists for the higher
terrain of the far western CWA including the Sierra on Saturday with
low pressure over central California. The general wind flow will
become favorable and combine with daytime heating to provide enough
lift to generate a few showers/storms mainly over the Sierra in the
afternoon. Low pressure is forecast over the southern CWA Sunday
with scattered clouds around much of the area but the better
instability is still limited to the Sierra and south central Nevada
mountains. However, there may be a few mountain showers/storms over
the higher terrain of Clark, San Bernardino and Mohave county as

Overall, winds will be on the light side through the weekend unless
associated with showers and thunderstorms. Temperatures will inch up
close to seasonal normals over the weekend but the lower heights
provided by the trough will keep them from becoming any warmer. The
heat will hold off until the upcoming week and is discussed in the
long term section.

.LONG TERM...Monday through Friday.

There remains a chance of isolated showers and thunderstorms across
mainly the higher terrain of northern Inyo, Esmeralda, central Nye,
and Lincoln counties to round out the holiday weekend. Then the
focus will shift to a pattern change that will swiftly bring dry
conditions and much warmer temperatures. Strong high pressure will
work into the western CONUS next week. Temperatures are expected to
be near normal Monday, but then quickly warm to roughly 5-10 degrees
above normal Wednesday through Friday. The heat might even linger.

.AVIATION...For McCarran...No significant weather expected with VFR
conditions and light winds following typical diurnal trends. A very
small chance of showers on the mountains today but will likely stay
clear of the terminal.

For the rest of southern Nevada...northwest Arizona...and southeast
California...No significant weather expected with light winds
following typical diurnal trends for most terminals through the
period. The exception could be KBIH late this afternoon into the
early evening when thunderstorm outflow moves in from the north and
could produce a storm near the terminal along with gusty north
winds. Otherwise, shower chances will be limited to the higher
terrain of the southern Great Basin and Sierra Nevada with perhaps
another chance of breezy west winds at KDAG during the afternoon
and evening.

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


Short Term/Aviation...Salmen
Long Term...Paddock

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