498  
FXUS65 KVEF 102011  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
112 PM PDT THU JUL 10 2025  
 
   
KEY MESSAGES
 
 
* HOT AND DRY CONDITIONS WILL LIKELY CONTINUE THROUGH THE WEEKEND  
AND INTO EARLY NEXT WEEK AS RIDGING PERSISTS ACROSS THE REGION.  
 

 
   
DISCUSSION
 
THIS AFTERNOON THROUGH THE MIDDLE OF NEXT WEEK.  
 
BROAD RIDGING WILL REMAIN OVER THE FORECAST AREA INTO NEXT WEEK,  
ALTHOUGH THE EXACT PLACEMENT AND INTENSITY OF THE RIDGE WILL VARY AT  
TIMES. THROUGH THE WEEKEND, LONG-RANGE ENSEMBLES ARE IN AGREEMENT  
THAT THE AREA OF HIGH PRESSURE WILL REMAIN CENTERED OVER SOUTHERN  
CALIFORNIA, MAINTAINING SLIGHTLY ABOVE-NORMAL HEIGHT ANOMALIES  
THROUGH SATURDAY. THIS WILL RESULT IN TEMPERATURES REMAINING ABOVE  
NORMAL, ALONG WITH KEEPING LIGHT WINDS AND MAINLY CLEAR SKIES. BY  
LATE IN THE WEEKEND AND EARLY NEXT WEEK, MODEL ENSEMBLES INDICATE  
THAT THE RIDGE WILL SHIFT EASTWARD, WHICH IS EXPECTED TO INCREASE  
TEMPERATURES BY A FEW DEGREES. PATCHY AREAS OF MAJOR HEATRISK LEVELS  
RETURN SUNDAY AND MONDAY ACROSS THE MOJAVE DESERT, AND TO A LESSER  
EXTENT IN THE COLORADO RIVER VALLEY. STARTING FROM TUESDAY ON,  
HEIGHTS BEGIN TO FALL AS AN EASTERLY WAVE MOVING INTO EASTERN MEXICO  
PUSHES THE RIDGE TO THE WEST. THIS WAVE MAY ALSO INTRODUCE SOME  
MOISTURE IN THE AREA BY THE SECOND HALF OF THE WEEK, WHICH WOULD  
ALSO HELP TO KEEP READINGS DOWN. THERE IS ALSO A LOW CHANCE FOR  
PRECIPITATION ON WEDNESDAY ACROSS NORTHWEST ARIZONA, BUT CONFIDENCE  
IS LOW ON IF AND WHERE RAIN MAY OCCUR.  
 

 
 
.AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST  
PACKAGE...NORTHWEST WINDS WITH INTERMITTENT GUSTS TO 15 KNOTS WILL  
CONTINUE INTO THE EARLY AFTERNOON BEFORE BECOMING LIGHT AND VARIABLE  
AFTER 20Z. THE TYPICAL SOUTHWEST-TO-WEST WINDS WILL DEVELOP AROUND  
00Z, AND OCCASIONAL GUSTS TO 20 KNOTS CAN BE EXPECTED THROUGH MID-  
EVENING. LIGHT AND VARIABLE WINDS RETURN BY DAYBREAK, FOLLOWED BY A  
MORE TYPICAL WIND PROGRESSION TOMORROW, WITH NORTHEAST WINDS IN THE  
LATE MORNING, SOUTHEAST WINDS IN THE AFTERNOON, AND SOUTHWEST WINDS  
IN THE EVENING. SPEEDS TOMORROW ARE EXPECTED TO REMAIN 8 KNOTS OR  
LESS, EXCEPT FOR RANDOM GUSTS TO 15 KNOTS DURING THE AFTERNOON DUE  
TO INTENSE HEATING. VFR CONDITIONS WILL PREVAIL THROUGH TOMORROW AT  
THE FIELD. REDUCED SLANTWISE VISIBILITIES ARE POSSIBLE ALONG THE  
BEATTY CORRIDOR DUE TO SMOKE FROM A WILDFIRE BURNING ON THE NEVADA  
SECURITY SITE.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...CONDITIONS AT THE LAS  
VEGAS AREA TERMINALS WILL BE SIMILAR TO THOSE DESCRIBED FOR HARRY  
REID, EXCEPT WINDS AT KHND WILL FAVOR A MORE SOUTH-TO-SOUTHWEST  
DIRECTION TOMORROW. ELSEWHERE, NORTHERLY WINDS OF LESS THAN 10  
KNOTS ARE FORECAST FOR KBIH THROUGH TOMORROW MORNING BEFORE TURNING  
SOUTHERLY TOMORROW AFTERNOON. GUSTY WESTERLY WINDS WILL PERSIST AT  
KDAG, WITH A TYPICAL DECREASE EXPECTED DURING THE LATE MORNING AND  
AFTERNOON HOURS. IN THE COLORADO RIVER VALLEY, SOUTHERLY WINDS WITH  
OCCASIONAL GUSTS TO 25 KNOTS ARE EXPECTED DURING THE LATE AFTERNOON  
AND EARLY EVENING, FOLLOWED BY LIGHT WINDS OVERNIGHT. VFR CONDITIONS  
WILL PREVAIL THROUGH TOMORROW ACROSS THE REGION. REDUCED SLANTWISE  
VISIBILITIES ARE POSSIBLE ACROSS PORTIONS OF SOUTHERN NEVADA AND FAR  
EASTERN SOUTHERN CALIFORNIA DUE TO SMOKE FROM A WILDFIRE BURNING ON  
THE NEVADA SECURITY SITE.
 
   
SPOTTER INFORMATION STATEMENT
 
SPOTTERS ARE ENCOURAGED TO REPORT  
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING  
PROCEDURES.  
 

 
 

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