Area Forecast Discussion
Issued by NWS Las Vegas, NV
FXUS65 KVEF 072234
Area Forecast Discussion
National Weather Service Las Vegas NV
235 PM PST Wed Dec 7 2016
.SYNOPSIS...Mainly dry conditions 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. Lighter winds are also on tap through the weekend.
.SHORT TERM...through Saturday Night...Gusty winds still occurring
down the Colorado River this afternoon behind a cold front that
moved through the region last night. These winds will gradually
decrease overnight, but still remain gusty at times through early
Thursday morning before diminishing Thursday afternoon. A mainly dry
northwest flow is expected to persist into the weekend with periods
of mid and high clouds moving across the region. An upper low moving
into the Pacific Northwest tonight through Friday will bring rain
and snow to much of the Washington, Oregon, and northern California
coasts. However, the moisture could extend far enough south to bring
a few light snow showers to the Sierra and possibly the far northern
portions of the CWA. The NAM12 is still generating some light QPF
amounts over portions of Clark and Mohave Counties, but with the
lack of any real dynamics and the jet remaining pretty far north, do
not expect any precipitation to fall that far south and have left it
out of the forecast. A weak cold front will brush central and
southern Nevada Saturday bringing a brief period of gusty northwest
winds to mainly northern Inyo, Esmeralda, central Nye and Lincoln
Counties. These winds are not expected to last for any significant
time and are expected to remain below advisory levels.
.LONG TERM...Sunday through Wednesday.
Very little change to the long term forecast as a dry northwest flow
remains in place Sunday and Monday. Temperatures will remain near to
slightly above normal. By Tuesday and Wednesday the models are
showing a fairly strong ridge over the eastern Pacific expanding
north and east helping to build the ridge over the southwest states.
This will push the jet a bit further north and bring a warming trend
for the middle part of next week with temperatures running about 5
to 8 degrees above normal.
.AVIATION...For McCarran...Considerable high cloud cover can be
expected at times through Thursday. Northeast winds between 040-070
can also be expected into early this evening before turning
southwest around 6 kts. Lighter winds will occur Thursday with
speeds generally around 5-6 kts. Winds may favor a northeast
direction during the afternoon.
For the rest of southern Nevada...northwest Arizona...and southeast
California...Considerable high cloud cover can be expected at times
through Thursday. Gusty winds down the Colorado River are expected
to diminish overnight, but remain somewhat gusty through early
Thursday morning. By the afternoon wind speeds will be less than 10
kts. Elsewhere winds will decreasing to less than 10 kts by 03z this
evening and remain below 10 kts through Thursday.
.SPOTTER INFORMATION STATEMENT...Spotter activation will not be
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