388 
FXUS65 KVEF 271505
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
805 AM PDT Wed Jun 27 2018

.SYNOPSIS...An area of high pressure over the Desert Southwest will 
keep hot and dry conditions in place today. A trough of low pressure 
will move across the western states Thursday and Friday leading to 
increasing southwest winds and temperatures pulling back closer to 
normal Friday. Temperatures will warm slightly Saturday through 
early next week.  
&&

.UPDATE...Another warm and dry late June day is in store, with 
conditions closely mirroring those observed yesterday. The current 
forecast is in good shape, and no updates are planned today. 

-Outler-

&&


.SHORT TERM...through Friday night.

Trough approaching the Pacific Northwest will usher in stronger 
winds today and Thursday. Main issue will concern those with fire 
weather interests Thursday due to low RH and winds that would aid in 
fire spread. Isolated pockets of stronger winds linger in Mohave 
County Friday, elsewhere less wind can be expected. Downward trend 
in temperatures through Friday. Otherwise, smoke from the Lions Fire 
will probably continue to produce lower visibility in Inyo and 
Esmeralda Counties.  

.LONG TERM...Saturday through Wednesday.

Didn't make any significant changes to the extended forecast as high 
pressure begins to nudge into the region from the west. This will 
bring an increase in temperatures area-wide, but overall readings 
are not expected to be much above normal. The models begin to 
diverge more Sunday through Tuesday with the GFS showing a rather 
strong high centered near the four corners region while the EC has 
this high centered more into Oklahoma. It really comes down to the 
strength of a trough that is forecast to move into the Pacific 
Northwest early next week. If it comes in fairly weak and shallow, 
it may open the door for a southeast flow which would potentially 
bring low level gulf moisture into the area. Anything stronger then 
we would likely remain in a dry southwest flow. Will follow the same 
trends as the previous forecast which is to increase some clouds 
over the southern CWA, but keeping all mention of pops out of the 
forecast.
&&

.AVIATION...For McCarran...Light northeast to easterly 
winds expected after 15Z today before stronger southwest winds with 
gusts up to 25 kts arrive between 21-23Z this afternoon. Mostly 
clear conditions with slight chance for diffuse smoke from distant 
wildfires. 

For the rest of southern Nevada, northwest Arizona and southeast 
California...South-southwest winds expected today across the region 
by late morning with gusts 25 to 30 kts possible. Mostly clear 
conditions with slight chance for diffuse smoke from distant 
wildfires. Denser smoke and lower visibility possible around KBIH.
&&

.FIRE WEATHER...A Red Flag Warning remains in effect Thursday from 
noon until 9 PM for strong south-southwest winds and low relative 
humidity across Clark, Lincoln and Mohave Counties as the trough 
moves across the Great Basin leading to extensive gusts 35 to 40 
mph. Minimum humidity values will be in the single digits.
&&

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

$$

SHORT TERM/AVIATION/FIRE WEATHER...Pierce
LONG TERM...Gorelow

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