804  
FNUS75 KVEF 151036  
FWSVEF  
 
SPOT FORECAST FOR AHA MACAV...AZ-CRA BIA  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
336 AM PDT TUE SEP 15 2020  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON SEPTEMBER 15.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...OR IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST...PLEASE CONTACT OUR OFFICE AT  
(702) 263-9750.  
   
DISCUSSION
 
DRY CONDITIONS ALONG WITH VERY DRY FUELS WILL KEEP,  
FIRE WEATHER CONDITIONS ELEVATED THROUGH THE WEEK. EXPECT  
AFTERNOON BREEZES TO REMAIN RELATIVELY LIGHT WITH ONLY MINOR GUSTS  
THROUGH MID WEEK BEFORE A SYSTEM TO THE NORTH ENHANCES AFTERNOON  
WINDS THURSDAY AND ESPECIALLY FRIDAY. THE INCREASING WIND COULD  
SET UP NEAR CRITICAL CONDITIONS FOR WILDFIRE SPREAD.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. HAZE.  
MAX TEMPERATURE.....101-106.  
MIN HUMIDITY........9-11 PERCENT.  
WINDS:  
20 FT WIND........UPSLOPE/UPVALLEY 4 TO 8 MPH.  
10000 FT WIND.....SOUTH 4 TO 9 MPH SHIFTING TO THE WEST AROUND 3  
MPH IN THE AFTERNOON.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......9000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
HAINES INDEX........2.  
VENTILATION.........GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....79-84.  
MAX HUMIDITY........21-26 PERCENT.  
WINDS:  
20 FT WIND........WEST WINDS AROUND 10 MPH IN THE EVENING  
BECOMING DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.  
10000 FT WIND.....NORTH 5 TO 10 MPH SHIFTING TO THE EAST  
OVERNIGHT.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......1000 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS.  
HAINES INDEX........4.  
VENTILATION.........POOR.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....103-108.  
MIN HUMIDITY........6-8 PERCENT.  
WINDS:  
20 FT WIND........UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST  
AROUND 10 MPH IN THE AFTERNOON.  
10000 FT WIND.....EAST AROUND 4 MPH SHIFTING TO THE NORTH AROUND  
2 MPH IN THE AFTERNOON.  
CWR (>= 0.10 IN)....0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......8000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 KNOTS.  
HAINES INDEX........4.  
VENTILATION.........VERY GOOD.  
 

 
FORECASTER...SALMEN  
REQUESTED BY...RYAN SHATTO  
TYPE OF REQUEST...WILDFIRE  
.TAG 2012628.0/VEF  
.EMAIL AZPDC@FIRENET.GOV  
 
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