727  
FXUS65 KVEF 270915  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
215 AM PDT SAT MAY 27 2017  
   
SYNOPSIS
 
RECREATIONAL AND OTHER OUTDOOR ACTIVITIES ARE FAVORED  
THIS MEMORIAL DAY WEEKEND WITH A PERIOD OF QUIET WEATHER SETTING UP  
FOR THE AREA. EXPECT TEMPERATURES TO BE NEAR NORMAL TODAY AND THEN  
WARM TO WELL ABOVE NORMAL BY MEMORIAL DAY. WINDS OVERALL ARE  
EXPECTED TO BE LIGHT.  

 
   
SHORT TERM
 
TODAY THROUGH MONDAY NIGHT.  
 
ESSENTIALLY LOOKING AT A BUILDING RIDGE OF HIGH PRESSURE THROUGH THE  
PERIOD. TEMPERATURES ARE EXPECTED TO INCREASE DAILY BEGINNING WITH  
NEAR SEASONAL TEMPERATURES TODAY WARMING TO ABOUT 6-8 DEGREES ABOVE  
NORMAL ON MONDAY WITH SUNDAY FALLING SOMEWHERE IN BETWEEN. EXPECT  
SUNNY AND DRY CONDITIONS THROUGH THE WEEKEND WITH HIGH CLOUDS  
ROLLING IN ON MEMORIAL DAY. WINDS ARE EXPECTED TO BE GENERALLY LIGHT  
WITH SOME AFTERNOON GUSTINESS IN PLACES.  
   
LONG TERM
 
TUESDAY THROUGH FRIDAY. THE MAIN CONCERN IS STILL THE  
EVOLUTION OF THE NEXT TROUGH OVER THE WEST DURING THIS PERIOD.  
MODELS HAVE COME INTO SLIGHTLY BETTER AGREEMENT, WHICH IS NOT SAYING  
MUCH GIVEN PREVIOUS RUNS. THUS, CONFIDENCE REMAINS BELOW AVERAGE.  
TUESDAY WILL BE ANOTHER DAY OF RIDGING AND TEMPERATURES WELL ABOVE  
NORMAL BEFORE TROUGHING BEGINS TO AFFECT THE WEST ON WEDNESDAY. AS  
NOTED BY PREVIOUS SHIFTS, AND STILL THE CASE THIS MORNING, THERE IS  
A LOT OF MODEL SPREAD REGARDING THE DEPTH, TRACK, AND TIMING OF THE  
TROUGH, SO CONFIDENCE IS VERY LOW IN THE DETAILS. THE OVERALL TREND  
SHOULD BE FOR TEMPERATURES TO COME DOWN CLOSER TO NORMAL, AND THERE  
COULD ALSO BE A FEW THUNDERSTORMS MAINLY OVER THE HIGHER TERRAIN  
NEARER THE COOLER TEMPERATURES ALOFT UNDER THE AXIS OF THE TROUGH  
(WHEREVER THAT ENDS UP BEING). RAISED POPS SOMEWHAT WEDNESDAY OVER  
THE MOUNTAINS IN THE NORTHWEST QUARTER OF THE CWA, BUT MADE LITTLE  
CHANGE ELSEWHERE. WILL ADDRESS FURTHER CHANGES ON FUTURE SHIFTS IF  
THE MODELS START TO ZERO IN ON A MOST LIKELY SOLUTION.  

 
   
AVIATION...FOR MCCARRAN
 
WINDS WILL FAVOR A TYPICAL DIURNAL  
PATTERN WITH AN EAST TO SOUTHEAST DIRECTION PREVAILING THROUGH THE  
DAY AND SOUTHWEST AT NIGHT. CLEAR SKIES AND VFR CONDITIONS  
THROUGH THE PERIOD.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...DIURNALLY DRIVEN WINDS GENERALLY 10 KNOTS OR LESS ARE  
FAVORED FOR TODAY. DRY AND CLEAR CONDITIONS ARE EXPECTED THROUGH THE  
PERIOD.  

 
   
SPOTTER INFORMATION STATEMENT
 
SPOTTERS ARE ENCOURAGED TO REPORT  
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING  
PROCEDURES.  

 
 

 
 
SHORT TERM/AVIATION...SALMEN  
LONG TERM...MORGAN  
 
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:  
 
HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER  
 
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