941  
FNUS75 KVEF 211531  
FWSVEF  
 
SPOT FORECAST FOR ANDRUS RX...NPS  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
831 AM PDT THU SEP 21 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MST ON SEPTEMBER 21.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...OR IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST...PLEASE CONTACT OUR OFFICE AT  
(702) 263-9750.  
   
DISCUSSION
 
A LOW PRESSURE TROUGH AND ASSOCIATED COLD FRONT WILL  
BRING STRONG SOUTHWEST WINDS TO NORTHWEST ARIZONA TODAY AND EVEN  
SOME RAIN SHOWERS EARLY THIS EVENING. WINDS WILL DECREASE TONIGHT  
AND TEMPERATURES WILL DROP OVER 10 TO 15 DEGREES FRIDAY AS THE  
TROUGH SETTLES OVER THE REGION.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....72-74.  
MIN HUMIDITY........22-24 PERCENT.  
WINDS:  
20 FT WIND........SOUTH WINDS INCREASING BY LATE MORNING AND  
BECOMING SOUTHWEST 15 TO 25 MPH WITH GUSTS TO  
AROUND 40 MPH IN THE AFTERNOON.  
CWR (>= 0.10 IN)....0 PERCENT.  
HAINES INDEX........2.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY WITH SCATTERED SHOWERS IN THE EVENING.  
MIN TEMPERATURE.....46-50.  
MAX HUMIDITY........62-67 PERCENT.  
WINDS:  
20 FT WIND........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO  
AROUND 40 MPH IN THE EVENING THEN DECREASING  
AND BECOMING NORTH 5 TO 10 MPH AFTER MIDNIGHT.  
CWR (>= 0.10 IN)....10 PERCENT.  
HAINES INDEX........2.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....61-66.  
MIN HUMIDITY........16-18 PERCENT.  
WINDS:  
20 FT WIND........SOUTH 4 TO 8 MPH IN THE MORNING BECOMING SOUTHWEST  
8 TO 12 MPH IN THE AFTERNOON.  
HAINES INDEX........4.  
 

 
FORECASTER...ADAIR  
REQUESTED BY...JOHN FOLEY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1716105.0/VEF  
.EMAIL JCFOLEY@NPS.GOV  
 
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