Area Forecast Discussion
Issued by NWS Las Vegas, NV

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FXUS65 KVEF 081734 AAA

Area Forecast Discussion
National Weather Service Las Vegas NV
930 AM PST Thu Dec 8 2016

.SYNOPSIS...Mainly dry weather along with a warming trend
is on tap through the remainder of the week and into the weekend.
However...there will be considerable high cloudiness at times and
also a chance of light snow for the Sierra and far northern Lincoln

.UPDATE...Generally light winds and cool temperatures this morning
except along the Colorado River south of the Hoover Dam where some
gusty winds remain in place. Those winds should gradually diminish
by late morning with light winds area wide by this afternoon. High
clouds will continue to stream across the area today with the
thicker clouds across Inyo, Esmeralda, central Nye and Lincoln
Counties. Current forecast in good shape and no updates planned.

218 AM PST Thu Dec 8 2016

.SHORT TERM...Today through Saturday Night...

Basically looking at zonal flow over the area through the short
term. Heights will rise somewhat beginning today and most areas will
see a warming trend through the period. Warming will likely be
limited somewhat in some valley locations due to strong surface
based temperature inversions. A strong jet to our north and weak
ripples in the flow will keep a considerable amount of high cloud
cover moving across the area at times. A bit deeper moisture will
clip the northern part of the forecast area and although synoptic
lift will be limited, there will be just enough moisture and
orographic lift to bring some light snow to the Sierra through the
period and possibly at times to northeast Lincoln County. Any
precipitation amounts will be very light in Lincoln County. The
eastern Sierra slopes could end up with up to six inches of snow
near the crest over the three day period.

.LONG TERM...Sunday through Wednesday.

It`s starting to sound like a broken record forecast through the
long term period. Northwest flow will prevail with mid and high
level moisture streaming across the area. Enough moisture will be
present to keep a nearly continuous slight chance of precipitation
across the high terrain of the Sierra and southern Great Basin
Sunday through at least Tuesday. Models hint at a wave on or about
Tuesday which could bring an increase in winds along with it.
Otherwise, winds will remain fairly tame with just occasional breezy
periods outside of the Sierra.

Temperatures will run several degrees above normal through the long
term period, resulting in temperatures in the low to mid 60`s for
Las Vegas and even into the low 70`s for the lower Colorado River
Valley and Death Valley.

As mentioned yesterday, looking out toward the end of the week there
could be a change to a more unsettled pattern, with a trough
indicated as early as Thursday or Friday.

.AVIATION...For McCarran...Considerable high cloud cover can be
expected at times through Friday. Winds will be light favoring
typical diurnal trends.

For the rest of southern Nevada...northwest Arizona...and southeast
California...Considerable high cloud cover can be expected at times
through Friday. Winds will generally be light favoring typical
diurnal trends.

.SPOTTER INFORMATION STATEMENT...Spotter activation will not be


LONG TERM...Wolcott

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