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000
FXUS65 KVEF 230848
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
148 AM PDT Tue Oct 23 2018

.SYNOPSIS...Dry weather and a warming trend will accompany a
building ridge of high pressure through the weekend. Daytime highs
will climb well above normal for late October.
&&

.SHORT TERM...through Thursday night

A considerable amount of high clouds from Las Vegas south early this
morning. Clouds are associated with an upper level disturbance
southwest of San Diego. Skies clear from Las Vegas north.

The upper level disturbance will pass to our south today. Mid/Hi
level RH data shows high clouds will remain south/southeast of Las
Vegas today. Models show another fast moving area of high clouds set
to grace our skies tonight and Wednesday. Strong ridge of high
pressure will begin to nose in from the west Wednesday night and
Thursday. Temperatures will warm a degree or two each day. North
breezes will continue in the favored Colorado River Valley between
Lake Mohave and Needles today. On Wednesday, those north wind
speeds should be slightly less.

.LONG TERM...Friday through Monday.

Models agree well on strong high pressure slowly traversing the area
from west to east Friday through Sunday, bringing dry weather with
temperatures well above normal for late October. Death Valley may
even make a run at 100F on one or more of those days. It is worth
noting that their record for latest 100F temperature of the season
is October 28. The models then diverge with their handling of low
pressure in the Gulf of Alaska, leading to a variety of solutions
over our area on Monday, most of which would produce nothing more
impactful than varying amounts of cloud cover and cooling of
temperatures. Will continue to monitor.
&&

.AVIATION...For McCarran...No significant wind expected with speeds
likely less than 10 kts during the period. An east-northeast
direction expected late morning into the afternoon then becoming
westerly tonight. High clouds to our south this morning with just a
few clouds around 10k feet over the higher terrain. Expecting
another area of high clouds tonight.

For the rest of southern Nevada, northwest Arizona and southeast
California...Considerable high clouds across southern California and
northwest Arizona today. Elsewhere, just a few clouds around 10 kft
over the higher terrain today. Another area of high clouds tonight
and Wednesday. Northeast wind around 6-8 kts most areas, except
stronger north winds expected at KIFP within the Colorado River
Valley.
&&

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

$$

SHORT TERM/AVIATION...Pierce
LONG TERM...Morgan

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