990  
FXUS65 KVEF 300538  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
1037 PM PDT SUN JUN 29 2025  
   
KEY MESSAGES  
 
* TEMPERATURES WILL PEAK ON MONDAY AND TUESDAY AS THE GRADUAL  
WARMING TREND CONTINUES INTO NEXT WEEK.  
 
* INCREASING MOISTURE WILL BRING A SLIGHT CHANCE FOR AFTERNOON  
SHOWERS AND THUNDERSTORMS TO MOHAVE COUNTY BEGINNING TUESDAY.  
 
 
   
DISCUSSION  
THROUGH THE END OF THE WEEK.  
 
TEMPERATURES WILL CONTINUE TO WARM A FEW DEGREES EACH DAY AS WE HEAD  
INTO NEXT WEEK, PEAKING AROUND 3 TO 7 DEGREES ABOVE NORMAL ON MONDAY  
AND TUESDAY. THE COLORADO RIVER VALLEY AND PORTIONS OF SOUTHERN  
MOHAVE COUNTY WILL SEE HEATRISK INCREASE TO MAJOR (LEVEL 3 OF 4),  
WITH MODERATE HEATRISK (LEVEL 2 OF 4) ACROSS THE REST OF THE AREA.  
DUE TO THE ISOLATED AND SHORT LIVED NATURE OF THE MAJOR HEATRISK,  
WE WILL NOT BE ISSUING ANY EXTREME HEAT HEADLINES. BEYOND TUESDAY  
TEMPERATURES WILL GRADUALLY DECREASE AS LOW PRESSURE PUSHES INTO  
SOUTHEASTERN CALIFORNIA, SOUTHERN NEVADA, AND NORTHWESTERN  
ARIZONA. BY MID-WEEK TEMPERATURES WILL HAVE COOLED BACK DOWN TO  
NEAR NORMAL WITH SLIGHTLY BELOW NORMAL TEMPERATURES POSSIBLE LATE  
IN THE WEEK.  
 
MOISTURE WILL BEGIN TO CREEP UP THE COLORADO RIVER VALLEY TOMORROW  
AS WE FIND OURSELVES SANDWICHED BETWEEN THE FOUR CORNERS HIGH TO THE  
EAST AND A LOW PRESSURE SYSTEM TO OUR WEST. THIS WILL RESULT IN  
SOUTHEASTERLY FLOW ALOFT ACROSS THE EASTERN PORTION OF OUR FORECAST  
AREA, ALLOWING FOR MOISTURE ADVECTION INTO THE COLORADO RIVER  
VALLEY, NORTHWESTERN ARIZONA, AND THE FAR EASTERN MOJAVE DESERT.  
BEGINNING ON TUESDAY, MOHAVE COUNTY WILL SEE SLIGHT CHANCES FOR  
SHOWERS AND THUNDERSTORMS EACH AFTERNOON THROUGH AT LEAST THURSDAY.  
THE HIGHER TERRAIN OF CLARK AND LINCOLN COUNTIES WILL HAVE A LESSER,  
BUT NOT ZERO, CHANCE OF SEEING AFTERNOON SHOWERS AND THUNDERSTORMS  
DEVELOP BEGINNING AROUND MID-WEEK. THE PRIMARY THREATS WILL BE DRY  
LIGHTNING POTENTIAL ON MONDAY AND TUESDAY, FOLLOWED BY MORE TYPICAL  
SUMMER LIKE DOWNPOURS AND GUSTY WINDS MIDWEEK ONWARD.  
 
 
   
AVIATION...FOR HARRY REID  
FOR THE 06Z FORECAST  
PACKAGE...SOUTHWESTERLY WIND AT OR BELOW 8KT WILL BECOME LIGHT AND  
VARIABLE BY 15Z AND LAST THROUGH THE MORNING UNTIL GUSTY  
SOUTH TO SOUTHWESTERLY WINDS RETURN DURING THE AFTERNOON HOURS.  
GUSTS TO 20KT ARE FORECAST. WINDS WILL BECOME LIGHT FROM THE  
SOUTHWEST AFTER SUNSET. TEMPERATURES WILL BE OVER 100 DEGREES  
BETWEEN 19Z AND 04Z ON MONDAY. SKIES WILL BE MOSTLY CLEAR  
THROUGH THE TAF PERIOD.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...MAINLY LIGHT WIND  
AND CLEAR SKIES THROUGH THE MORNING HOURS AT MOST TAF SITES.  
KDAG WILL REMAIN WESTERLY AT AROUND 10KT. GUSTY SOUTHERLY  
TO SOUTHWESTERLY WINDS INCREASE MONDAY AFTERNOON ACROSS  
MOST OF THE FORECAST AREA. ISOLATED CONVECTION IS POSSIBLE ALONG  
HIGH TERRAIN IN MOHAVE COUNTY IN THE AFTERNOON, BUT OTHERWISE SKIES  
WILL BE MOSTLY CLEAR.  
 
 
   
SPOTTER INFORMATION STATEMENT  
SPOTTERS ARE ENCOURAGED TO REPORT  
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING  
PROCEDURES.  
 
 
 
 
 
DISCUSSION...STESSMAN  
AVIATION...BERC  
 
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:  
HTTPS://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER  
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