310  
FNUS75 KVEF 241304  
FWSVEF  
 
SPOT FORECAST FOR POTOSI RX...FOREST SERVICE  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
504 AM PST WED FEB 24 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 PST ON FEBRUARY 24.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...OR IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST...PLEASE CONTACT OUR OFFICE AT  
(702) 263-9750.  
   
DISCUSSION
 
LIGHT WINDS THIS MORNING WILL GIVE WAY TO BREEZY  
WEST WINDS THIS AFTERNOON BEFORE GUSTY NORTH-NORTHWEST WINDS  
LATER THIS EVENING. STRONG NORTHERLY WINDS OF 20-25 MPH WITH  
GUSTS AROUND 35 MPH ARE EXPECTED AROUND 7-8PM TONIGHT. GUSTS  
AROUND 25-30 MPH ARE EXPECTED TO REMAIN THROUGH OVERNIGHT  
THURSDAY AND WINDS WILL GRADUALLY SHIFT NORTHEAST THROUGH THURSDAY  
MORNING. WINDS WILL QUICKLY RELAX THURSDAY AFTERNOON, BECOMING  
LESS THAN 10 MPH BY LATE AFTERNOON. RELATIVE HUMIDITY WILL ALSO  
BE BELOW 20% MUCH OF WEDNESDAY, THURSDAY AND FRIDAY AFTERNOONS.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....50-53.  
MIN HUMIDITY........12-15 PERCENT.  
WINDS:  
20 FT WIND........WEST WINDS 10 TO 15. GUSTS UP TO 25 MPH.  
10000 FT WIND.....WEST AROUND 20 MPH.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......6000 FT AGL.  
TRANSPORT WINDS.....WEST 10 TO 15 KNOTS.  
VENTILATION.........VERY GOOD.  
HAINES INDEX........5.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....25-30.  
MAX HUMIDITY........32-37 PERCENT.  
WINDS:  
20 FT WIND........NORTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND  
35 MPH.  
10000 FT WIND.....NORTHWEST AROUND 26 MPH.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 15 TO 25 KNOTS.  
VENTILATION.........POOR.  
HAINES INDEX........4.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....41-44.  
MIN HUMIDITY........14-17 PERCENT.  
WINDS:  
20 FT WIND........NORTHEAST WINDS 10 TO 15 MPH. GUSTS UP TO 35  
MPH DECREASING TO 20 MPH IN THE AFTERNOON.  
10000 FT WIND.....NORTHWEST AROUND 19 MPH.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......3000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 10 TO 20 KNOTS IN THE MORNING AND  
EARLY AFTERNOON BECOMING LIGHT.  
VENTILATION.........FAIR.  
HAINES INDEX........4.  
 

 
FORECASTER...KRYSTON  
REQUESTED BY...JOSHUA CONSTABLE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2102863.0/VEF  
.DELDT 02/24/21  
.FORMATTERVERSION 1.0.26  
.EMAIL JOSHUA.CONSTABLE@USDA.GOV  
 
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