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FXUS65 KVEF 121016

Area Forecast Discussion
National Weather Service Las Vegas NV
215 AM PST Tue Nov 12 2019

.SYNOPSIS...North winds will linger within the lower 
Colorado River today. Otherwise, high clouds will begin to advance 
into the area. Those high clouds will increase Wednesday into 
Friday. Temperatures will remain 4 to 8 degrees above their seasonal 
normals. More sunshine will return over the weekend while 
temperatures stay pleasant.  


.DISCUSSION...through Monday.

A northerly breeze will linger within the lower Colorado River 
Valley, between Lake Mohave and Needles through midday before 
starting to weaken. Elsewhere today, high clouds will begin to 
advance into the are from the northwest. Mostly cloudy to cloudy 
skies expected Wednesday into Friday as RH progs indicate brunt of 
high level moisture overhead. No threat of precipitation as ceilings 
expected to remain at or above 15 kft, while sub-cloud layer stays 
dry. Even under a blanket of thick clouds our temperatures will stay 
above normal through Friday.

Saturday-Monday: Deterministic/Ensemble guidance in good agreement 
showing another closed low developing west of the Baja Peninsula 
while a northern stream trough grazes Utah. This should bring back 
northerly breezes to Lincoln, Clark, eastern San Bernardino and 
Mohave Counties this weekend. Those winds will impact boaters and 
create elevated fire weather concerns in the Lake Mead NRA and lower 
Colorado River Valley. 


.AVIATION...For McCarran...Some high clouds with light and 
variable winds following the typical drainage wind pattern can be 
expected through much of the morning, remaining below 6 knots. Light 
and variable winds are expected to continue through the day favoring 
a northeasterly direction. Thicker high clouds are expected by late 
afternoon aoa 25 kft. Shortly after sunset, winds will become light 
and favor a southwesterly direction.

For the rest of southern Nevada, northwest Arizona and southeast 
California...Some passing high clouds with light and variable winds 
following typical drainage wind patterns can be expected today 
across the region. Though, some north breezes will continue down the 
Colorado River Valley through this morning with gusts to 20-25 
knots. Winds are expected to relax down the Colorado River Valley by 
this afternoon with typical diurnal wind patterns resuming this 
evening. Clouds will become thicker throughout the day today across 
the region moving from northwest to southeast with SCT to BKN aoa 25 


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




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