102  
FNUS55 KVEF 181105  
FWFVEF  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEVADA  
NORTHWEST ARIZONA AND SOUTHEAST CALIFORNIA  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM PDT TODAY FOR  
STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 460, 461, 462, 463,  
464 AND 465...  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST/PDT SATURDAY  
FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 461 AND 102...  
   
DISCUSSION
 
A SYSTEM PASSING NORTH OF THE AREA TODAY AND  
SATURDAY WILL BRING AN INCREASE IN WINDS FRIDAY AND SATURDAY  
AFTERNOON ACROSS SOUTHERN NEVADA AND NORTHWEST ARIZONA. WITH  
HISTORICALLY DRY CONDITIONS, WINDS AROUND 20 MPH WILL CREATE  
CRITICAL CONDITIONS FOR RAPID FIRE SPREAD OVER MUCH OF SOUTHERN  
NEVADA THIS AFTERNOON AND NORTHWEST ARIZONA SATURDAY AFTERNOON.  
DRY CONDITIONS CONTINUE SUNDAY AND THE UPCOMING WEEK WITH  
OCCASIONAL AFTERNOON BREEZES.  
 
NOTE: THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS.  
 
NOTE: PLEASE SEE OPERATING PLAN FOR DETAILED ZONE DESCRIPTIONS AT:  
HTTP://WWW.WRH.NOAA.GOV/VEF/FIRE.PHP  
 
AZZ101-CAZ229-NVZ466-182330-  
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-  
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-  
405 AM PDT FRI SEP 18 2020 /405 AM MST FRI SEP 18 2020/  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. HAZE.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....106-111.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....3-11 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH 10 TO  
15 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTH 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......16400 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTH 10 TO 15 KNOTS IN  
THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
HAZE IN THE EVENING.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....74-79.  
* 24 HR TREND.....LITTLE CHANGE.  
* MAX HUMIDITY:  
* VALLEY FLOOR....22-27 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 8 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHEAST WIND UP TO 10 MPH. GUSTS UP TO 30 MPH  
IN THE EVENING.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH INCREASING TO 30 TO 40 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....103-108.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....5-15 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTH WIND 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 35 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 30 TO 40 MPH DECREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......13900 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE MID TO UPPER 70S. HIGHS 103 TO 108.  
SOUTH WIND 10 TO 15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 70S. HIGHS  
101 TO 106. SOUTH WIND UP TO 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE 70S. HIGHS 100 TO 105. SOUTH  
WIND UP TO 10 MPH.  
 

 
 
AZZ102-182330-  
NORTHWEST DESERTS/NORTHWEST PLATEAU-  
405 AM MST FRI SEP 18 2020  
   
..RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST SATURDAY
 
 
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE:  
* 3000 FEET.......100-105.  
* 6000 FEET.......83-88.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* 3000 FEET.......6-9 PERCENT.  
* 6000 FEET.......9-12 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHEAST WINDS UP TO 10 MPH SHIFTING TO THE  
SOUTHWEST WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTH WINDS UP TO 10 MPH SHIFTING TO THE  
SOUTHWEST WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......15100 FT AGL.  
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 KNOTS SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE:  
* 3000 FEET.......66-71.  
* 6000 FEET.......48-53.  
* 24 HR TREND.....LITTLE CHANGE.  
* MAX HUMIDITY:  
* 3000 FEET.......23-28 PERCENT.  
* 6000 FEET.......32-37 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 7 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* UPPER SLOPES....SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH INCREASING TO 30 TO 40 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE:  
* 3000 FEET.......98-103.  
* 6000 FEET.......81-86.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* 3000 FEET.......9-12 PERCENT.  
* 6000 FEET.......12-15 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
* UPPER SLOPES....SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND  
40 MPH.  
* 10000 FT MSL....SOUTHWEST 25 TO 35 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......12300 FT AGL.  
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 KNOTS SHIFTING TO THE  
SOUTHWEST 15 TO 20 KNOTS IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE LOWER TO MID 60S. HIGHS IN THE LOWER  
TO MID 90S. SOUTH WINDS 10 TO 15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 60S. HIGHS IN  
THE UPPER 80S TO MID 90S. SOUTH WINDS UP TO 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 60S. HIGHS IN  
THE UPPER 80S TO LOWER 90S. SOUTH WINDS UP TO 10 MPH.  
 

 
 
NVZ465-182330-  
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT  
THIS EVENING...  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
HAZE.  
* MAX TEMPERATURE:  
* 4000 FEET.......99-104.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......7-9 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 20  
MPH INCREASING TO 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH IN  
THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH INCREASING TO 25 TO 35 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......15500 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 KNOTS  
IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE IN THE EVENING.  
* MIN TEMPERATURE:  
* 4000 FEET.......65-70.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......26-31 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 12 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* 10000 FT MSL....SOUTHWEST 30 TO 40 MPH INCREASING TO 40 TO 50 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......98-103.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 4000 FEET.......10-13 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....SOUTHWEST 35 TO 45 MPH DECREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......12400 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE UPPER 50S TO LOWER 60S. HIGHS IN THE  
UPPER 80S TO LOWER 90S. SOUTH WINDS UP TO 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S TO MID 60S. HIGHS  
IN THE UPPER 80S TO LOWER 90S. SOUTH WINDS UP TO 10 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 60S. HIGHS IN  
THE MID 80S TO LOWER 90S. SOUTH WINDS UP TO 10 MPH.  
 

 
 
NVZ463-464-182330-  
SHEEP RANGE-SPRING MOUNTAINS-  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT  
THIS EVENING...  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
HAZE THROUGH THE DAY.  
* MAX TEMPERATURE:  
* 7000 FEET.......81-86.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......10-14 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....SOUTH WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 40 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH INCREASING TO 25 TO 35 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......14600 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 20 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
HAZE IN THE EVENING.  
* MIN TEMPERATURE:  
* 7000 FEET.......47-52.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MAX HUMIDITY:  
* 7000 FEET.......37-42 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 18 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND  
35 MPH.  
* 10000 FT MSL....SOUTHWEST 35 TO 45 MPH INCREASING TO 45 TO 55 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 7000 FEET.......78-83.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......15-25 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 7 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND  
30 MPH.  
* 10000 FT MSL....SOUTHWEST 35 TO 45 MPH DECREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......11800 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS IN THE  
MID 70S TO LOWER 80S. SOUTH WINDS 10 TO 15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS  
IN THE MID 70S TO LOWER 80S. SOUTH WINDS 10 TO 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS  
IN THE MID TO UPPER 70S. SOUTH WINDS 10 TO 15 MPH.  
 

 
 
NVZ461-182330-  
LINCOLN COUNTY/ELY DISPATCH-  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT  
THIS EVENING...   
..RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM PDT SATURDAY
 
 
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE THROUGH THE DAY.  
* MAX TEMPERATURE:  
* 4000 FEET.......95-100.  
* 7000 FEET.......79-84.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......8-10 PERCENT.  
* 7000 FEET.......9-12 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHEAST WIND UP TO 10 MPH WITH GUSTS TO AROUND  
25 MPH INCREASING TO SOUTH 15 TO 20 MPH WITH GUSTS TO AROUND  
40 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTH WIND 10 TO 20 MPH. GUSTS UP TO 30 MPH  
INCREASING TO 45 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTH 20 TO 30 MPH INCREASING TO SOUTHWEST 30 TO  
40 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........6.  
* MIXING HEIGHT.......13600 FT AGL.  
* TRANSPORT WINDS.....EAST AROUND 10 KNOTS SHIFTING TO THE SOUTH 10  
TO 20 KNOTS IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
HAZE IN THE EVENING. ISOLATED SHOWERS THROUGH THE NIGHT.  
* MIN TEMPERATURE:  
* 4000 FEET.......61-66.  
* 7000 FEET.......51-56.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......25-30 PERCENT.  
* 7000 FEET.......35-40 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 15 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WIND UP TO 10 MPH. GUSTS UP TO 35 MPH IN  
THE EVENING.  
* UPPER SLOPES....SOUTH WIND 10 TO 15 MPH. GUSTS UP TO 40 MPH IN  
THE EVENING.  
* 10000 FT MSL....SOUTHWEST 35 TO 45 MPH INCREASING TO 45 TO 55 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........6.  
   
SATURDAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......93-98.  
* 7000 FEET.......76-81.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......11-13 PERCENT.  
* 7000 FEET.......14-19 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 4 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WIND UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTHWEST WIND 10 TO 15 MPH WITH GUSTS TO AROUND  
35 MPH.  
* 10000 FT MSL....SOUTHWEST 30 TO 40 MPH DECREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......12300 FT AGL.  
* TRANSPORT WINDS.....SOUTHEAST AROUND 10 KNOTS SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE UPPER 40S TO LOWER 50S. HIGHS IN THE  
LOWER TO MID 90S. SOUTH WIND 10 TO 15 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE 50S. HIGHS IN THE UPPER 80S  
TO MID 90S. SOUTH WIND 10 TO 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE 50S. HIGHS IN THE UPPER 80S  
TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.  
 

 
 
NVZ462-182330-  
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT  
THIS EVENING...  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
HAZE THROUGH THE DAY.  
* MAX TEMPERATURE:  
* 4000 FEET.......96-101.  
* 7000 FEET.......78-83.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......7-9 PERCENT.  
* 7000 FEET.......9-11 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHEAST WIND UP TO 10 MPH WITH GUSTS TO AROUND  
25 MPH INCREASING TO SOUTH 10 TO 20 MPH WITH GUSTS TO AROUND  
45 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTH WIND AROUND 10 MPH WITH GUSTS TO AROUND 30  
MPH INCREASING TO 15 TO 20 MPH WITH GUSTS TO AROUND 45 MPH IN  
THE AFTERNOON.  
* 10000 FT MSL....SOUTH 25 TO 35 MPH INCREASING TO 30 TO 40 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........6.  
* MIXING HEIGHT.......12100 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST 15 TO 20 KNOTS  
IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE IN THE EVENING.  
* MIN TEMPERATURE:  
* 4000 FEET.......58-63.  
* 7000 FEET.......51-56.  
* 24 HR TREND.....ON AVERAGE DOWN 11 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......36-41 PERCENT.  
* 7000 FEET.......47-52 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 30 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WIND 10 TO 15 MPH. GUSTS UP TO 35 MPH IN  
THE EVENING.  
* UPPER SLOPES....SOUTHWEST WIND 10 TO 15 MPH. GUSTS UP TO 40 MPH  
IN THE EVENING.  
* 10000 FT MSL....SOUTHWEST 35 TO 45 MPH DECREASING TO 30 TO 40 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......92-97.  
* 7000 FEET.......73-78.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......11-13 PERCENT.  
* 7000 FEET.......13-18 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 5 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....WEST WIND UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON. GUSTS UP TO 30 MPH.  
* UPPER SLOPES....NORTHWEST WIND UP TO 10 MPH SHIFTING TO THE  
SOUTHWEST AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.  
* 10000 FT MSL....SOUTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......9600 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE UPPER 40S TO LOWER 50S. HIGHS IN THE  
UPPER 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.    
MONDAY
 
CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS IN THE  
UPPER 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO LOWER 50S.  
HIGHS IN THE UPPER 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.  
 

 
 
NVZ460-182330-  
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-  
405 AM PDT FRI SEP 18 2020  
 
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT  
THIS EVENING...  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
HAZE AND AREAS OF SMOKE THROUGH THE DAY. ISOLATED SHOWERS THROUGH  
THE DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......88-93.  
* 7000 FEET.......78-83.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......8-9 PERCENT.  
* 7000 FEET.......8-18 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH 10 TO  
15 MPH WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTHEAST WIND UP TO 10 MPH SHIFTING TO THE SOUTH  
WITH GUSTS TO AROUND 40 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTH 15 TO 20 MPH INCREASING TO 20 TO 30 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................2.  
* HAINES INDEX........6.  
* MIXING HEIGHT.......12400 FT AGL.  
* TRANSPORT WINDS.....EAST AROUND 10 KNOTS SHIFTING TO THE SOUTH IN  
THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE AND AREAS OF SMOKE IN THE  
EVENING. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING.  
* MIN TEMPERATURE:  
* 4000 FEET.......48-53.  
* 7000 FEET.......44-49.  
* 24 HR TREND.....ON AVERAGE DOWN 12 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......47-52 PERCENT.  
* 7000 FEET.......50-55 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 32 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHWEST WIND AROUND 10 MPH WITH GUSTS TO AROUND  
30 MPH SHIFTING TO THE NORTH UP TO 10 MPH AFTER MIDNIGHT.  
* UPPER SLOPES....SOUTHWEST WIND 10 TO 15 MPH WITH GUSTS TO AROUND  
35 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.  
* 10000 FT MSL....SOUTHWEST 15 TO 25 MPH BECOMING 15 TO 20 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................2 DECREASING TO 1 AFTER MIDNIGHT.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......85-90.  
* 7000 FEET.......73-78.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......12-13 PERCENT.  
* 7000 FEET.......12-18 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WIND UP TO 10 MPH.  
* UPPER SLOPES....NORTHWEST WIND UP TO 10 MPH.  
* 10000 FT MSL....SOUTHWEST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......8000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 10 KNOTS IN THE MORNING  
BECOMING LIGHT.  
* VENTILATION.........FAIR.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS IN THE  
MID 80S TO LOWER 90S. SOUTHEAST WIND UP TO 10 MPH.    
MONDAY
 
CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS IN THE  
MID 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO LOWER 50S.  
HIGHS IN THE MID 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.  
 

 
 
CAZ226-182330-  
OWENS VALLEY/SOUTHERN INYO FOREST-  
405 AM PDT FRI SEP 18 2020  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. HAZE IN THE MORNING. AREAS OF  
SMOKE THROUGH THE DAY. SCATTERED SHOWERS IN THE MORNING. ISOLATED  
SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....90-95.  
* 7000 FEET.......76-81.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....9-15 PERCENT.  
* 7000 FEET.......17-27 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 11 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS UP TO 10 MPH INCREASING TO 10 TO 15  
MPH WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 35 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 10 TO 15 MPH INCREASING TO 15 TO 25 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE IN THE EVENING.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....51-56.  
* 7000 FEET.......29-34.  
* 24 HR TREND.....ON AVERAGE DOWN 9 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....38-43 PERCENT.  
* 7000 FEET.......58-63 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 20 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....WEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* UPPER SLOPES....WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
* 10000 FT MSL....SOUTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....89-94.  
* 7000 FEET.......74-79.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....9-12 PERCENT.  
* 7000 FEET.......11-19 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 5 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE  
SOUTHEAST AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.  
* UPPER SLOPES....WEST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHEAST  
AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.  
* 10000 FT MSL....SOUTH UP TO 10 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS IN THE  
MID 80S TO LOWER 90S. SOUTH WINDS UP TO 10 MPH.    
MONDAY
 
CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS IN THE  
MID 80S TO LOWER 90S. SOUTH WINDS 10 TO 15 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS IN THE  
MID 80S TO LOWER 90S. SOUTH WINDS 10 TO 15 MPH.  
 

 
 
CAZ227-182330-  
DEATH VALLEY NATIONAL PARK-  
405 AM PDT FRI SEP 18 2020  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.  
HAZE AND AREAS OF SMOKE THROUGH THE DAY. ISOLATED SHOWERS THROUGH  
THE DAY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....108-113.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....6-8 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHEAST WIND UP TO 10 MPH SHIFTING TO THE SOUTH  
WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTH 15 TO 25 MPH INCREASING TO SOUTHWEST 25 TO  
35 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE AND AREAS OF SMOKE IN THE  
EVENING.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....79-84.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....25-30 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 16 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTH WIND 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* 10000 FT MSL....SOUTHWEST 30 TO 40 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....105-110.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....8-10 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....WEST WIND UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON. GUSTS UP TO 20 MPH.  
* 10000 FT MSL....SOUTHWEST 15 TO 25 MPH DECREASING TO 10 TO 15 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE 70S. HIGHS 106 TO 111. SOUTH WIND UP  
TO 10 MPH.    
MONDAY
 
CLEAR. LOWS IN THE MID 70S TO LOWER 80S. HIGHS 105 TO  
110. SOUTH WIND 10 TO 15 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE MID TO UPPER 70S. HIGHS 104 TO 109.  
SOUTH WIND 10 TO 15 MPH.  
 

 
 
CAZ228-182330-  
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-  
405 AM PDT FRI SEP 18 2020  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY. HAZE THROUGH THE DAY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....102-107.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....7-11 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHWEST WIND UP TO 10 MPH WITH GUSTS TO AROUND  
20 MPH INCREASING TO 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY. HAZE IN THE EVENING.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....64-69.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....31-36 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 16 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHWEST WIND 10 TO 15 MPH. GUSTS UP TO 30 MPH  
IN THE EVENING.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH INCREASING TO 25 TO 35 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
SATURDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....100-105.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....10-13 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHWEST WIND UP TO 10 MPH INCREASING TO 10 TO  
15 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* 10000 FT MSL....SOUTHWEST 25 TO 35 MPH DECREASING TO 15 TO 25 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
EXTENDED
 
   
SUNDAY
 
CLEAR. LOWS IN THE 60S. HIGHS 95 TO 100. SOUTH WIND UP  
TO 10 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE 60S. HIGHS IN THE MID TO  
UPPER 90S. SOUTH WIND 10 TO 15 MPH.    
TUESDAY
 
CLEAR. LOWS IN THE 60S. HIGHS IN THE 90S. SOUTHWEST  
WIND UP TO 10 MPH.  
 

 
 
NOTE: MIXING HEIGHT...TRANSPORT WINDS AND VENTILATION CATEGORY FOR  
EACH FIRE ZONE ARE BASED ON THE FOLLOWING POINTS/AREAS:  
 
IN THE COLORADO RIVER VALLEY:  
NVZ466-CAZ229-AZZ001 - LAUGHLIN/BULLHEAD CITY/NEEDLES  
 
IN ARIZONA:  
AZZ102 - KINGMAN VICINITY  
 
IN NEVADA:  
NVZ460 - ORIENTAL WASH RAWS VICINITY  
NVZ461 - KANE SPRINGS RAWS VICINITY  
NVZ462 - DESERT ROCK VICINITY  
NVZ463-NVZ464 - KYLE CANYON VICINITY  
NVZ465 - LAS VEGAS VICINITY  
 
HTTP://WEATHER.GOV/LASVEGAS  
 
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