Area Forecast Discussion
Issued by NWS Las Vegas, NV
FXUS65 KVEF 301027
Area Forecast Discussion
National Weather Service Las Vegas NV
325 AM PDT Sun Apr 30 2017
.SYNOPSIS...High pressure will gradually move over the region during
the upcoming week bringing a significant warming trend to the area.
Dry conditions along with light winds can also be expected.
.SHORT TERM...through Tuesday night.
A dry northwest flow will set up over the region over the next
couple of day ahead of a strong ridge of high pressure that will
move over the area by mid week. Overall winds will be much lighter
across the area today, but there will be some remaining breezes down
the Colorado River this afternoon. The big story over the next few
days will be increasing temperatures. Highs today will jump about 5
degrees from yesterday and then an additional 5 degrees warming on
Monday. This will put most areas about 5-10 degrees above normal by
Monday and Tuesday.
The models do indicate a couple of weak disturbances pushing
southeast through Utah Monday and Tuesday. This may bring a few
clouds to Lincoln and northern Mohave Counties, but any
precipitation will remain well east of the area.
.LONG TERM...Wednesday through Sunday.
Strong ridge of high pressure will provide the region with warm
temperatures Wednesday-Friday. In fact, warmest readings of 2017
expected with triple digits being easily reached in Death Valley
N.P. While cities in the the lower Colorado River Valley from
Laughlin/Bullhead City to Lake Havasu City have all reached 99
degrees so far this year. This week will be their first taste of
triple digits. Ridge axis shifts east over the Rocky Mountain states
as a deep trough approaches the West Coast Friday. Winds will
increase from the south-southwest Friday likely making Friday the
warmest day of the period.
Models continue to advertise a deep trough developing over the
southwest CONUS next weekend. Have higher confidence that
temperatures will dramatically cool and gusty winds could be a
problem. Less confidence in precipitation chances/placement due to
large difference in position of upper low next Sunday. ECMWF has the
low off the central California coast while the GFS is inland over
California/Nevada. For now, keeping any slight chance mention of
showers confined to the higher terrain of Inyo/Esmeralda Counties
Saturday and Sunday.
.FIRE WEATHER...Dry conditions along with a significant warming
trend is expected during the upcoming week. Winds are not expected
to be much of an impact for most areas, but there could be some
breezy conditions this afternoon across portions of Esmeralda and
central Nye Counties.
.AVIATION...Much lighter winds expected today. Winds will mainly be
light and variable through the morning hours, but we could see some
easterly winds develop during the afternoon with speeds around 7
kts. Mainly clear skies.
For the rest of southern Nevada...northwest Arizona...and southeast
California...Some lingering north winds down the Colorado River
Valley today, but overall much lighter winds across the region.
During the afternoon some northwest winds up to 15 kts may develop
over portions of Esmeralda and central Nye Counties. Mainly clear
.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant wind impacts according to standard operating
Short Term/Fire Weather/Aviation...Gorelow
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