Area Forecast Discussion


360 
FXUS65 KVEF 171104
AFDVEF
Area Forecast Discussion
National Weather Service Las Vegas NV
304 AM PST Sun Dec 17 2017
.SYNOPSIS...Gusty north winds and slightly cooler temperatures can 
be expected today before a warming trend begins Monday and 
accelerates Tuesday under high pressure. Another cold front is 
expected to bring strong north winds and cooler temperatures on 
Thursday.
&&
.SHORT TERM...Today through Tuesday night. 
A band of clouds associated with an exiting trough extended across 
generally the southeast half of the forecast area early this 
morning. This area of cloud cover will gradually decrease throughout 
the day as the trough continues to move east of the area. Otherwise, 
areas of gusty northerly winds will linger much of the day before 
decreasing late this afternoon. A wind advisory remains in effect 
for the Owens Valley, Death Valley southern Nye and western Clark 
Counties until 4 pm. Temperatures will generally cool a little bit 
today. High pressure will gradually push east from the California 
coast Monday to Nevada by Tuesday with dry conditions, mainly light 
winds and warming temperatures. 
.LONG TERM...Wednesday through Saturday.
Not much change in the long term as the next system is approaching 
the area by Wednesday. Expect above average temperatures with 
breezes increasing by Wednesday afternoon and evening.
Models have come into better agreement with the next system, cutting 
from northern California over to the four corners on Thursday. This 
will drag a cold front across the area, bringing much cooler 
temperatures - likely 10 or more degrees cooler than Wednesday - and 
gusty north winds to the region. Precipitation chances look fairly 
minimal as the system is now forecast to remain progressive and 
quickly exit the area. The upper-level ridge axis looks to remain 
off shore for the remainder of the period, leaving north to 
northwest flow over the area with cooler temperatures.
&&
.AVIATION...For McCarran...North winds generally gusting around 25 
kts will persist this morning then gradually decrease in the 
afternoon. Clouds will gradually decrease this morning. Light winds 
following typical diurnal trends are expected overnight tonight 
through Monday. 
For the rest of southern Nevada, northwest Arizona and southeast 
California...Gusty north winds will persist across most regional 
airports today, gradually decreasing during the afternoon. Most 
areas will still see north to northeast winds tonight and Monday but 
speeds will be lighter. Clouds will gradually clear this morning.
&&
.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&
$$
Short Term/Aviation...Harrison 
Long Term...Steele
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