317  
FNUS75 KVEF 172335  
FWSVEF  
 
SPOT FORECAST FOR PASS...USFS  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
435 PM PDT WED SEP 17 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 PDT ON SEPTEMBER 17.  
 
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  
TROPICAL MOISTURE WILL MOVE INTO THE REGION TOMORROW  
AND FRIDAY AND SHOWERS AND THUNDERSTORMS ARE LIKELY. HEAVY DOWNPOURS  
AND GUSTY OUTFLOW WINDS ARE ALSO POSSIBLE BUT OTHERWISE WINDS WILL BE  
LIGHT. CONDITIONS DRY OUT OVER THE WEEKEND WITH ONLY ISOLATED  
THUNDERSTORMS AND TEMPERATURES INCREASE NEXT WEEK.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....46-49.  
MAX HUMIDITY........57-60 PERCENT.  
WINDS:  
20 FT WINDS.......LIGHT WINDS.  
10000 FT WINDS....SOUTHEAST AROUND 10 MPH.  
CWR (>= 0.10).......5 PERCENT.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....NORTH UP TO 5 KNOTS.  
VENTILATION.........MARGINAL TO FAIR.  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING,  
THEN RAIN SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
MAX TEMPERATURE.....60-63.  
MIN HUMIDITY........47-50 PERCENT.  
WINDS:  
20 FT WINDS.......EAST WINDS UP TO 5 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS.  
10000 FT WINDS....EAST AROUND 10 MPH.  
CWR (>= 0.10).......65 PERCENT.  
MIXING HEIGHT.......5000 FT AGL.  
TRANSPORT WINDS.....EAST 5 TO 10 KNOTS.  
VENTILATION.........VERY GOOD.  
   
THURSDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF  
RAIN SHOWERS AND THUNDERSTORMS OVERNIGHT.  
MIN TEMPERATURE.....41-44.  
MAX HUMIDITY........97-100 PERCENT.  
WINDS:  
20 FT WINDS.......LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS.  
10000 FT WINDS....SOUTH AROUND 10 MPH.  
CWR (>= 0.10).......65 PERCENT.  
MIXING HEIGHT.......1300 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST UP TO 5 KNOTS.  
VENTILATION.........POOR.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE MORNING. RAIN SHOWERS AND THUNDERSTORMS LIKELY  
IN THE AFTERNOON.  
MAX TEMPERATURE.....61-64.  
MIN HUMIDITY........57-60 PERCENT.  
WINDS:  
20 FT WINDS.......SOUTH WINDS UP TO 5 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
10000 FT WINDS....SOUTHWEST AROUND 5 MPH.  
CWR (>= 0.10).......50-60 PERCENT.  
MIXING HEIGHT.......3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 KNOTS.  
VENTILATION.........FAIR.  
 
 
FORECASTER...CZYZYK  
REQUESTED BY...ALEXANDRA BROWN  
TYPE OF REQUEST...WILDFIRE  
.TAG 2522116.0/VEF  
.DELDT 09/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL CAOVCC@FIRENET.GOV  
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