AREA FORECAST DISCUSSION

 
 FXUS65 KVEF 221731 AAA
 AFDVEF
 
 AREA FORECAST DISCUSSION
 NATIONAL WEATHER SERVICE LAS VEGAS NV
 930 AM PST SUN NOV 22 2009
 
 .SYNOPSIS...THE REGION WILL BE UNDER A DRY NORTHWEST FLOW THROUGH 
 TUESDAY. SOME HIGH CLOUDS WILL DRIFT OVERHEAD FROM TIME TO TIME 
 WHILE LOCALLY GUSTY NORTH WINDS WILL OCCUR MAINLY DOWN THE COLORADO 
 RIVER VALLEY MONDAY. TEMPERATURES WILL BE NEAR OR SLIGHTLY ABOVE 
 NORMAL THROUGH TUESDAY.  
 &&
 
 .UPDATE...SOME HIGH CLOUDS WILL DRIFT ACROSS THE SKY TODAY AS A FAST 
 MOVING SHORTWAVE TROUGH CLIPS NORTHERN NEVADA. ANY PRECIPITATION 
 WILL STAY NORTH OF I-80. RIDGE OVER THE EASTERN PACIFIC WILL SLIDE 
 EASTWARD AND BE OVER THE GREAT BASIN TUESDAY AND WEDNESDAY. MODELS 
 CONSISTENT IN BUILDING A SURFACE HIGH OVER THE NORTHERN GREAT BASIN 
 MONDAY - WEDNESDAY. NORTH-NORTHEAST SURFACE WINDS AT OR LESS THAN 10 
 MPH WILL OCCUR AREAWIDE WHILE STRONGER NORTH BREEZES WILL OCCUR DOWN 
 THE OVERTON ARM THEN SOUTH ALONG THE COLORADO RIVER TO LAKE HAVASU 
 CITY THROUGH MIDWEEK. NO UPDATE NEEDED THIS MORNING.
 &&    
 
 .PREV DISCUSSION...320 AM PST SUN NOV 22...DRY NORTHWEST FLOW ALOFT 
 WILL PERSIST THROUGH TUESDAY WITH JUST SOME HIGH CLOUDS AT TIMES. A 
 SHORTWAVE TROUGH MOVING THROUGH IDAHO AND INTO WYOMING LATE TODAY 
 AND TONIGHT WILL LEAD TO AN INCREASING NORTHERLY GRADIENT OVER THE 
 AREA LATE TONIGHT AND MONDAY WITH BREEZY CONDITIONS DOWN THE 
 COLORADO RIVER VALLEY. THE GRADIENT WILL RELAX TUESDAY BUT SOME 
 NORTHERLY BREEZES MAY LINGER. TEMPERATURES WILL BE PRETTY CLOSE TO 
 NORMAL THROUGH TUESDAY...MAYBE TRENDING SLIGHTLY ABOVE NORMAL. 
 
 .LONG TERM...LITTLE CHANGE IN THE EXTENDED PERIOD...AS GUIDANCE 
 CONTINUES TO INDICATE HIGH PRESSURE ACROSS THE AREA THROUGH THE END 
 OF THE WEEK...UNTIL AN AREA OF LOW PRESSURE BEGINS TO IMPACT HE 
 REGION BY THE BEGINNING OF THE WEEKEND. ABOVE NORMAL TEMPERATURES 
 AND LIMITED CLOUD COVERAGE IS EXPECTED THROUGH FRIDAY. AS THE SYSTEM 
 NEARS THE AREA...SOUTHWEST WINDS WILL INCREASE STARTING FRIDAY 
 AFTERNOON...AND CONTINUE THROUGH SATURDAY AS THE FRONT PASSES ACROSS 
 THE REGION. MOISTURE APPEARS TO BE QUITE LIMITED WITH THIS 
 SYSTEM...SO UNLESS MODELS BEGIN TO TREND TOWARDS A DEEPER 
 SOLUTION...NO ASSOCIATED PRECIPITATION IS EXPECTED ACROSS THE 
 FORECAST AREA. 
 &&
 
 .AVIATION...FOR MCCARRAN...NO SIGNIFICANT WEATHER IS EXPECTED OVER 
 THE NEXT 48 HOURS WITH LIMITED CLOUD COVER AND LIGHT WINDS.
 
 FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST 
 CALIFORNIA...LIGHT WINDS FOLLOWING LOCAL DIURNAL PATTERNS...AND FEW 
 TO SCT HIGH CLOUDS CAN BE EXPECTED OVER THE NEXT SEVERAL DAYS.
 &&
 
 .VEF WATCHES/WARNINGS/ADVISORIES...
 NV...NONE.
 AZ...NONE.
 CA...NONE.
 &&
 
 

 
 PIERCE/HARRISON/KENNEDY
 
 HTTP://WEATHER.GOV/LASVEGAS
 
 
 

Webmaster
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Las Vegas Weather Forecast Office
7851 S Dean Martin Dr.
Las Vegas, NV 89139-6628

Tel: (702) 263-9744