Area Forecast Discussion
Issued by NWS Las Vegas, NV

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FXUS65 KVEF 090354
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
754 PM 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
County through the weekend.
&&

.UPDATE...Tweaked evening and overnight sky grids to better match
satellite trends, otherwise the rest of the forecast in good shape
with low temperatures a couple to few degrees warmer than those last
night
&&

.PREV DISCUSSION...
Issued at 230 PM PST Thu Dec 8 201

.SHORT TERM...Tonight through Sunday Night...

After some gusty winds this morning down the Colorado River, winds
have diminished and are generally calm across the region this
afternoon. The area will remain under the influence of a near zonal
flow through the weekend with weak embedded disturbances. Moisture
will continue to stream into the Pacific Northwest down to central
California, but most of the precipitation is expected to be shadowed
by the Sierra with very little falling over the eastern slopes.
Still, the highest peaks could still see several inches of snow
through the weekend. A few showers are also possible across the
higher elevations of Esmeralda, central Nye and Lincoln Counties,
but any amounts that do fall are expected to be light. The best
chance for northern Lincoln County looks to be Saturday night as a
disturbance moves through the area. Just ahead of this disturbance
Saturday afternoon we could see some gusty west winds develop across
western portions of San Bernardino County with speeds generally
between 30-40 mph. Temperatures will still remain close to normal
through Friday, but will start to warm a few degrees Saturday and
Sunday.

.LONG TERM...Monday through Thursday.

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
Monday 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.
&&

&&

$$

Update...Steele
SHORT TERM/AVIATION...Gorelow
LONG TERM...Wolcott


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