368  
FXUS65 KVEF 151148  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
448 AM PDT TUE SEP 15 2026  
   
KEY MESSAGES
 
 
* BREEZY SOUTH-SOUTHWESTERLY WIND GUSTS WILL CONTINUE THROUGH THE  
WEEK WITH DRY CONDITIONS AND NEAR-NORMAL TEMPERATURES.  
 

 
   
DISCUSSION
 
TODAY THROUGH MONDAY.  
 
TIGHTENED PRESSURE GRADIENTS ACROSS THE REGION WILL CONTINUE TO  
BRING GUSTY SOUTH-SOUTHWESTERLY WINDS TO THE FORECAST AREA IN THE  
AFTERNOONS THANKS TO AN UPPER-LEVEL TROUGH ACROSS THE PACIFIC  
NORTHWEST AND A RIDGE TO OUR EAST. EXPECT GUST SPEEDS GENERALLY  
BETWEEN 25 AND 35 MPH, THOUGH CAN'T RULE OUT 40 MPH SPEEDS IN  
ISOLATED INSTANCES AND/OR IN THE HIGHER TERRAIN. ENSEMBLES  
CONTINUE TO SHOW A REINFORCING CLOSED LOW RIDING ALONG THE  
CALIFORNIA COAST BEFORE PUSHING INTO THE SOUTHERN GREAT BASIN MID-  
TO-LATE WEEK. THE RESULTANT INSTABILITY COUPLED WITH 0.75 TO 1.25  
INCHES OF PWAT OVER OUR EASTERN ZONES HAVE RESULTED IN INCREASED  
POPS ACROSS SOUTHEASTERN LINCOLN AND NORTHERN AND EASTERN MOHAVE  
COUNTIES WEDNESDAY AND THURSDAY. ADDITIONALLY, WPC HAS PAINTED A  
MARGINAL EXCESSIVE RAINFALL OUTLOOK OVER NORTHERN MOHAVE COUNTY  
FOR WEDNESDAY AND THURSDAY. COVERAGE IS EXPECTED TO BE ISOLATED,  
BUT STORMS THAT FORM HAVE THE POTENTIAL TO BE EFFICIENT RAIN-  
MAKERS. FOR LOCATIONS WEST OF INTERSTATE 15, EXPECT MOSTLY DRY  
CONDITIONS AND TEMPERATURES NEAR-NORMAL HEADING INTO THE NEXT WORK  
WEEK.  
 

 
   
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE
 
LIGHT  
WINDS EARLY THIS MORNING WILL SHIFT TO THE SOUTHEAST, WITH GUSTS  
TO 15-20KT DEVELOPING BY MID-MORNING. BY EARLY AFTERNOON, WINDS  
VEER TO THE SOUTH-SOUTHWEST, INCREASING WITH GUSTS TO 20-25KT  
EXPECTED THROUGH SUNSET BEFORE DIMINISHING. WINDS BECOME LIGHTER  
OVERNIGHT, FOLLOWING SIMILAR TRENDS HEADING INTO WEDNESDAY  
MORNING. VFR CONDITIONS PREVAIL WITH NO OPERATIONALLY SIGNIFICANT  
CLOUD COVER, AND TEMPERATURES EXPECTED TO TOP OUT AT 99 DEGREES  
THIS AFTERNOON.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...WINDS AROUND 5-10KT AT  
ISSUANCE WILL SHIFT TO THE SOUTH AND SOUTHEAST, WITH GUSTS TO  
15-20KT DEVELOPING BY MID MORNING, INCREASING TO 20-25KT THIS  
AFTERNOON THROUGH SUNSET. WINDS BECOME LIGHTER OVERNIGHT FOR  
MOST, THOUGH INTERMITTENT GUSTS ARE EXPECTED THROUGH THE NIGHT FOR  
PORTIONS OF THE LOWER COLORADO RIVER VALLEY NEAR KIFP. PRIMARY  
EXCEPTIONS ARE THE NORTHERN OWENS VALLEY/KBIH WHERE GUSTY UP-  
VALLEY WINDS EXPECTED THIS AFTERNOON, AND THE WESTERN MOHAVE  
DESERT/KDAG WHERE WEST WINDS BECOME GUSTY LATE AFTERNOON THROUGH  
LATE EVENING. ISOLATED THUNDERSTORMS ARE EXPECTED, MAINLY OVER  
NORTHWESTERN ARIZONA AND EASTERN LINCOLN COUNTY THIS AFTERNOON  
AND EVENING, BUT OTHERWISE, VFR CONDITIONS PREVAIL WITH NO  
OPERATIONALLY SIGNIFICANT CLOUD COVER ELSEWHERE.  
 

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

 
 

 
 
DISCUSSION...SOULAT  
AVIATION...PHILLIPSON  
 
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:  
HTTPS://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER  
 
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