312  
FNUS75 KVEF 261624  
FWSVEF  
 
SPOT FORECAST FOR ROCK FIRE...CAL FIRE  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
924 AM PDT SUN JUL 26 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1111 PDT ON JULY 26.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...OR IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST...PLEASE CONTACT OUR OFFICE AT  
(702) 263-9750.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
LIGHT, MAINLY DRAINAGE WINDS WILL BECOME SOUTHERLY  
AFTER NOON WITH SPEEDS GENERALLY AROUND 8 TO 12 MPH. STRONGER  
GUSTS OUT OF THE WEST ARE LIKELY IN THE LATE AFTERNOON AND EARLY  
EVENING. SIMILAR WINDS EXPECTED ON MONDAY. HUMIDITY WILL BE  
SLIGHTLY LOWER TODAY WITH MINIMUMS IN THE MID-20S AT MID SLOPE  
AND IN THE 10-15% RANGE IN THE VALLEY. MIN RH VALUES WILL BE A  
COUPLE PERCENT LOWER ON MONDAY. SOME CLOUD COVER IS POSSIBLE  
OVER THE CREST TODAY AND MONDAY, BUT NO THREAT OF THUNDERSTORMS.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....69-72.  
MIN HUMIDITY........21-26 PERCENT.  
WINDS:  
20 FT WINDS.......SOUTH WINDS 8 TO 12 MPH.  
STRONGER WEST WIND GUSTS LATE AFTERNOON  
AND EVENING AT 20 TO 25 MPH.  
10000 FT WINDS....SOUTHWEST AROUND 5 MPH.  
CWR (>= 0.10).......0 PERCENT.  
MIXING HEIGHT.......11400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 KNOTS.  
VENTILATION.........VERY GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....53-56.  
MAX HUMIDITY........37-42 PERCENT.  
WINDS:  
20 FT WINDS.......WEST WINDS 6 TO 12 MPH WITH GUSTS  
OF 20 TO 25 MPH IN EARLY EVENING.  
10000 FT WINDS....WEST AROUND 5 MPH.  
CWR (>= 0.10).......0 PERCENT.  
MIXING HEIGHT.......7000 FT AGL.  
TRANSPORT WINDS.....WEST 5 TO 10 KNOTS.  
VENTILATION.........GOOD.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....69-72.  
MIN HUMIDITY........18-23 PERCENT.  
WINDS:  
20 FT WINDS.......SOUTH WINDS 8 TO 12 MPH.  
STRONGER WEST WIND GUSTS LATE AFTERNOON  
AND EVENING AT 20 TO 25 MPH.  
10000 FT WINDS....SOUTHWEST AROUND 5 MPH.  
CWR (>= 0.10).......0 PERCENT.  
MIXING HEIGHT.......10800 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST UP TO 10 KNOTS.  
VENTILATION.........GOOD.  
 

 
FORECASTER...CZYZYK  
REQUESTED BY...NICK SHEW  
TYPE OF REQUEST...WILDFIRE  
.TAG 2618146.1/VEF  
.DELDT 07/26/26  
.FORMATTERVERSION 2.0.0  
.EMAIL NICK.SHEW@FIRE.CA.GOV  
 
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