073  
FNUS55 KVEF 240953  
FWFVEF  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEVADA  
NORTHWEST ARIZONA AND SOUTHEAST CALIFORNIA  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
153 AM PST WED FEB 24 2021  
   
DISCUSSION
 
A COLD FRONT WILL PUSH THROUGH THE REGION TODAY,  
BRINGING GUSTY NORTHERLY WINDS FIRST TO THE SOUTHERN GREAT BASIN  
LATE THIS MORNING, THEN EXTENDING SOUTHWARD THROUGH THE AFTERNOON  
AND EVENING TO INCLUDE THE REST OF SOUTHEASTERN CALIFORNIA,  
SOUTHERN NEVADA AND NORTHWESTERN ARIZONA. WINDS ALONG THE COLORADO  
RIVER VALLEY WILL PEAK OVERNIGHT, DIMINISHING THROUGH THE  
AFTERNOON ON THURSDAY. NORTH WINDS WILL PICK BACK UP SATURDAY INTO  
SUNDAY.  
 
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-NVZ466-250015-  
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-  
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-  
153 AM PST WED FEB 24 2021 /253 AM MST WED FEB 24 2021/  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....77-82.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* VALLEY FLOOR....7-13 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST UP TO  
10 MPH IN THE AFTERNOON.  
* 10000 FT MSL....WEST 10 TO 20 MPH INCREASING TO 20 TO 30 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......10200 FT AGL.  
* TRANSPORT WINDS.....NORTH AROUND 10 KNOTS.  
* VENTILATION.........VERY GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....38-43.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....24-29 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 5 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTH WIND 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH.  
* 10000 FT MSL....WEST 20 TO 30 MPH INCREASING TO NORTHWEST 35 TO  
45 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....65-70.  
* 24 HR TREND.....ON AVERAGE DOWN 12 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....8-14 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTH WIND 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH.  
* 10000 FT MSL....NORTH 20 TO 30 MPH BECOMING NORTHWEST 15 TO 20  
MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......4300 FT AGL.  
* TRANSPORT WINDS.....NORTH 15 TO 25 KNOTS.  
* VENTILATION.........VERY GOOD.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE UPPER 30S TO MID 40S. HIGHS IN THE  
MID TO UPPER 70S. NORTH WIND UP TO 10 MPH.    
SATURDAY
 
CLEAR. LOWS IN THE LOWER TO MID 40S. HIGHS IN THE MID  
TO UPPER 70S. NORTHWEST WIND 10 TO 15 MPH.    
SUNDAY
 
COOLER. MOSTLY CLEAR. LOWS IN THE 40S. HIGHS IN THE MID  
TO UPPER 60S. NORTH WIND 15 TO 25 MPH.  
 

 
 
AZZ102-250015-  
NORTHWEST DESERTS/NORTHWEST PLATEAU-  
253 AM MST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 3000 FEET.......71-76.  
* 6000 FEET.......53-58.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 3000 FEET.......10-13 PERCENT.  
* 6000 FEET.......11-16 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST 10 TO  
15 MPH WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.  
* UPPER SLOPES....SOUTHWEST WINDS UP TO 10 MPH WITH GUSTS TO AROUND  
20 MPH SHIFTING TO THE WEST WITH GUSTS TO AROUND 30 MPH IN  
THE AFTERNOON.  
* 10000 FT MSL....WEST 15 TO 25 MPH INCREASING TO 20 TO 30 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......9200 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 10 KNOTS IN  
THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* 3000 FEET.......30-35.  
* 6000 FEET.......15-20.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MAX HUMIDITY:  
* 3000 FEET.......31-36 PERCENT.  
* 6000 FEET.......48-53 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
* UPPER SLOPES....NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
* 10000 FT MSL....WEST 20 TO 30 MPH INCREASING TO NORTHWEST 25 TO  
35 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 3000 FEET.......65-70.  
* 6000 FEET.......45-50.  
* 24 HR TREND.....ON AVERAGE DOWN 8 DEGREES.  
* MIN HUMIDITY:  
* 3000 FEET.......10-15 PERCENT.  
* 6000 FEET.......14-18 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
* UPPER SLOPES....NORTHEAST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 15 TO 25 MPH BECOMING NORTHWEST 10 TO 15  
MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......3800 FT AGL.  
* TRANSPORT WINDS.....NORTH 10 TO 20 KNOTS.  
* VENTILATION.........GOOD.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE UPPER 20S TO MID 30S. HIGHS IN THE  
LOWER TO MID 60S. NORTHWEST WINDS UP TO 10 MPH.    
SATURDAY
 
CLEAR. LOWS IN THE 30S. HIGHS IN THE LOWER TO MID  
60S. WEST WINDS 10 TO 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS IN THE UPPER  
20S TO LOWER 30S. HIGHS IN THE LOWER TO MID 50S. NORTH WINDS  
10 TO 20 MPH.  
 

 
 
NVZ465-250015-  
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......68-73.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......8-11 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS UP TO 10 MPH. GUSTS UP TO 30 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....WEST 15 TO 25 MPH INCREASING TO 20 TO 30 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......8400 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTHWEST AROUND 10  
KNOTS IN THE AFTERNOON.  
* VENTILATION.........GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* 4000 FEET.......30-35.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......27-32 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
* 10000 FT MSL....NORTH 30 TO 40 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......58-63.  
* 24 HR TREND.....ON AVERAGE DOWN 10 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......8-12 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS 10 TO 15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 25 MPH IN THE AFTERNOON.  
* 10000 FT MSL....NORTH 20 TO 30 MPH BECOMING NORTHWEST 15 TO 20  
MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......4700 FT AGL.  
* TRANSPORT WINDS.....NORTH 10 TO 15 KNOTS.  
* VENTILATION.........GOOD.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE UPPER 20S TO LOWER 30S. HIGHS IN THE  
LOWER TO MID 60S. NORTHWEST WINDS UP TO 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE 30S. HIGHS IN THE UPPER 50S  
TO LOWER 60S. NORTHWEST WINDS 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S TO LOWER 30S. HIGHS  
IN THE UPPER 40S TO MID 50S. NORTH WINDS 15 TO 20 MPH.  
 

 
 
NVZ463-464-250015-  
SHEEP RANGE-SPRING MOUNTAINS-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 7000 FEET.......52-57.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......10-13 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....NORTHWEST WINDS 10 MPH INCREASING TO 10 TO 15 MPH  
WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
* 10000 FT MSL....WEST 15 TO 20 MPH BECOMING 15 TO 25 MPH IN THE  
AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......8300 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* 7000 FEET.......13-18.  
* 24 HR TREND.....ON AVERAGE DOWN 10 DEGREES.  
* MAX HUMIDITY:  
* 7000 FEET.......40-45 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 13 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....NORTH WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH.  
* 10000 FT MSL....NORTH 30 TO 40 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 7000 FEET.......44-49.  
* 24 HR TREND.....ON AVERAGE DOWN 10 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......12-15 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....NORTH WINDS 10 TO 15 MPH. GUSTS UP TO 35 MPH IN  
THE MORNING.  
* 10000 FT MSL....NORTH 15 TO 25 MPH SHIFTING TO THE NORTHWEST 15  
TO 20 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......3700 FT AGL.  
* TRANSPORT WINDS.....NORTH 10 TO 15 KNOTS.  
* VENTILATION.........GOOD.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE 20S. HIGHS IN THE UPPER 40S TO MID  
50S. NORTHWEST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE 20S. HIGHS IN THE MID 40S  
TO LOWER 50S. NORTHWEST WINDS 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 18 TO 23. HIGHS IN THE UPPER 30S TO  
MID 40S. NORTH WINDS 10 TO 20 MPH.  
 

 
 
NVZ461-250015-  
LINCOLN COUNTY/ELY DISPATCH-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......63-68.  
* 7000 FEET.......45-50.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......10-13 PERCENT.  
* 7000 FEET.......15-24 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WIND UP TO 10 MPH INCREASING TO 10 TO  
15 MPH WITH GUSTS TO AROUND 40 MPH IN THE AFTERNOON.  
* UPPER SLOPES....NORTHWEST WIND UP TO 10 MPH SHIFTING TO THE NORTH  
WITH GUSTS TO AROUND 40 MPH IN THE AFTERNOON.  
* 10000 FT MSL....NORTHWEST 20 TO 30 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......8700 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE:  
* 4000 FEET.......27-32.  
* 7000 FEET.......12-17.  
* 24 HR TREND.....ON AVERAGE DOWN 8 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......34-39 PERCENT.  
* 7000 FEET.......54-59 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH DECREASING TO 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH  
AFTER MIDNIGHT.  
* UPPER SLOPES....NORTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
* 10000 FT MSL....NORTH 30 TO 40 MPH INCREASING TO NORTHEAST 35 TO  
45 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......55-60.  
* 7000 FEET.......41-46.  
* 24 HR TREND.....ON AVERAGE DOWN 8 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......10-13 PERCENT.  
* 7000 FEET.......12-18 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH DECREASING TO AROUND 10 MPH IN THE AFTERNOON.  
* UPPER SLOPES....NORTHWEST WIND UP TO 10 MPH. GUSTS UP TO 25 MPH  
IN THE MORNING.  
* 10000 FT MSL....NORTHEAST 15 TO 25 MPH SHIFTING TO THE NORTHWEST  
15 TO 20 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......3700 FT AGL.  
* TRANSPORT WINDS.....NORTH 10 TO 20 KNOTS.  
* VENTILATION.........GOOD.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE 20S. HIGHS IN THE UPPER 50S TO MID  
60S. NORTHWEST WIND UP TO 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 20S. HIGHS IN  
THE MID 50S TO LOWER 60S. NORTHWEST WIND 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 17 TO 22. HIGHS IN THE LOWER TO MID  
50S. NORTH WIND 10 TO 20 MPH.  
 

 
 
NVZ462-250015-  
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......67-72.  
* 7000 FEET.......45-50.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......7-9 PERCENT.  
* 7000 FEET.......12-17 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WIND 10 TO 20 MPH. GUSTS UP TO 45 MPH  
IN THE AFTERNOON.  
* UPPER SLOPES....NORTHWEST WIND AROUND 10 MPH WITH GUSTS TO AROUND  
25 MPH INCREASING TO 15 TO 25 MPH WITH GUSTS TO AROUND 45 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....WEST 15 TO 25 MPH INCREASING TO NORTHWEST 25 TO  
35 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......7700 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST 10 TO 15 KNOTS IN  
THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* 4000 FEET.......29-34.  
* 7000 FEET.......15-20.  
* 24 HR TREND.....ON AVERAGE DOWN 7 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......27-32 PERCENT.  
* 7000 FEET.......44-49 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH DECREASING TO 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH  
AFTER MIDNIGHT.  
* UPPER SLOPES....NORTH WIND 15 TO 25 MPH WITH GUSTS TO AROUND 45  
MPH DECREASING TO 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH  
AFTER MIDNIGHT.  
* 10000 FT MSL....NORTHWEST 30 TO 40 MPH BECOMING NORTH 25 TO 35  
MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......58-63.  
* 7000 FEET.......41-46.  
* 24 HR TREND.....ON AVERAGE DOWN 9 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......7-9 PERCENT.  
* 7000 FEET.......10-13 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE MORNING.  
* UPPER SLOPES....NORTH WIND 10 TO 15 MPH. GUSTS UP TO 25 MPH IN  
THE MORNING.  
* 10000 FT MSL....NORTH 10 TO 15 MPH INCREASING TO NORTHWEST 20 TO  
30 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
* MIXING HEIGHT.......3000 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST 10 TO 15 KNOTS.  
* VENTILATION.........FAIR.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE 20S. HIGHS IN THE LOWER TO MID 60S.  
NORTHWEST WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S TO LOWER 30S. HIGHS  
IN THE UPPER 50S TO LOWER 60S. NORTH WIND 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 20S. HIGHS IN  
THE 50S. NORTH WIND 15 TO 25 MPH.  
 

 
 
NVZ460-250015-  
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......59-64.  
* 7000 FEET.......45-50.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......10-12 PERCENT.  
* 7000 FEET.......14-23 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND AROUND 10 MPH WITH GUSTS TO AROUND 25  
MPH INCREASING TO 15 TO 25 MPH WITH GUSTS TO AROUND 45 MPH IN  
THE AFTERNOON.  
* UPPER SLOPES....NORTHWEST WIND AROUND 10 MPH WITH GUSTS TO AROUND  
25 MPH INCREASING TO 15 TO 25 MPH WITH GUSTS TO AROUND 45 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....NORTHWEST 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.......4900 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 10 KNOTS SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
* VENTILATION.........VERY GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* 4000 FEET.......20-25.  
* 7000 FEET.......14-19.  
* 24 HR TREND.....ON AVERAGE DOWN 7 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......34-39 PERCENT.  
* 7000 FEET.......46-51 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 6 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 10 TO 20 MPH. GUSTS UP TO 45 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
* UPPER SLOPES....NORTH WIND 10 TO 20 MPH. GUSTS UP TO 45 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
* 10000 FT MSL....NORTH 25 TO 35 MPH DECREASING TO 15 TO 25 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* 4000 FEET.......53-58.  
* 7000 FEET.......42-47.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......8 PERCENT.  
* 7000 FEET.......10-16 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 6 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....NORTHWEST 10 TO 15 MPH INCREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
* MIXING HEIGHT.......2600 FT AGL.  
* TRANSPORT WINDS.....NORTHEAST AROUND 10 KNOTS IN THE MORNING  
BECOMING LIGHT.  
* VENTILATION.........MARGINAL.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE 20S. HIGHS IN THE LOWER TO MID 60S.  
NORTHWEST WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S TO LOWER 30S. HIGHS  
IN THE MID 50S TO LOWER 60S. NORTHWEST WIND 10 TO 20 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 20S. HIGHS IN  
THE 50S. NORTH WIND 15 TO 25 MPH.  
 

 
 
CAZ226-250015-  
OWENS VALLEY/SOUTHERN INYO FOREST-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....65-70.  
* 7000 FEET.......49-54.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....10-13 PERCENT.  
* 7000 FEET.......14-22 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH  
IN THE AFTERNOON.  
* UPPER SLOPES....NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH  
IN THE MORNING.  
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....22-27.  
* 7000 FEET.......5-10.  
* 24 HR TREND.....ON AVERAGE DOWN 8 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....29-34 PERCENT.  
* 7000 FEET.......41-46 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
* UPPER SLOPES....NORTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 10 TO 15 MPH BECOMING 10 TO 20 MPH AFTER  
MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....58-63.  
* 7000 FEET.......46-51.  
* 24 HR TREND.....ON AVERAGE DOWN 8 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....7-12 PERCENT.  
* 7000 FEET.......11-20 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WINDS UP TO 10 MPH.  
* UPPER SLOPES....NORTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
EXTENDED
 
   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S TO LOWER 30S. HIGHS  
IN THE LOWER TO MID 60S. NORTHWEST WINDS UP TO 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S TO LOWER 30S.  
HIGHS IN THE MID 50S TO LOWER 60S. NORTHWEST WINDS 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE 20S. HIGHS IN THE 50S. NORTH  
WINDS 10 TO 20 MPH.  
 

 
 
CAZ227-250015-  
DEATH VALLEY NATIONAL PARK-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....78-83.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....7-9 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND UP TO 10 MPH. GUSTS UP TO 25 MPH  
IN THE AFTERNOON.  
* 10000 FT MSL....WEST 10 TO 15 MPH INCREASING TO NORTHWEST 15 TO  
25 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....44-49.  
* 24 HR TREND.....ON AVERAGE DOWN 4 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....16-21 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTH WIND 10 TO 20 MPH. GUSTS UP TO 40 MPH  
DECREASING TO 30 MPH AFTER MIDNIGHT.  
* 10000 FT MSL....NORTHWEST 20 TO 30 MPH INCREASING TO NORTH 25 TO  
35 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....69-74.  
* 24 HR TREND.....ON AVERAGE DOWN 9 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....6-8 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND UP TO 10 MPH WITH GUSTS TO AROUND  
25 MPH.  
* 10000 FT MSL....NORTH 15 TO 25 MPH SHIFTING TO THE NORTHWEST 15  
TO 20 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE LOWER TO MID 40S. HIGHS IN THE MID  
70S TO LOWER 80S. NORTHWEST WIND UP TO 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 40S. HIGHS IN  
THE MID TO UPPER 70S. NORTH WIND UP TO 10 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE 40S. HIGHS IN THE UPPER 60S  
TO MID 70S. NORTH WIND 10 TO 20 MPH.  
 

 
 
CAZ228-250015-  
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-  
153 AM PST WED FEB 24 2021  
   
TODAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....73-78.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* VALLEY FLOOR....8-12 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND UP TO 10 MPH.  
* 10000 FT MSL....WEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLEAR.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....33-38.  
* 24 HR TREND.....ON AVERAGE DOWN 7 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....22-27 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 6 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 40  
MPH.  
* 10000 FT MSL....NORTHWEST 15 TO 25 MPH INCREASING TO 30 TO 40 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........5.  
   
THURSDAY
 
 
* SKY/WEATHER.........SUNNY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....62-67.  
* 24 HR TREND.....ON AVERAGE DOWN 11 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....7-10 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
* 10000 FT MSL....NORTH 20 TO 30 MPH BECOMING NORTHWEST 15 TO 25  
MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....0 PERCENT.  
* LAL.................1.  
* HAINES INDEX........4.  
   
EXTENDED
 
   
FRIDAY
 
CLEAR. LOWS IN THE 30S. HIGHS IN THE UPPER 60S TO LOWER  
70S. NORTHWEST WIND UP TO 10 MPH.    
SATURDAY
 
CLEAR. LOWS IN THE UPPER 30S TO LOWER 40S. HIGHS IN  
THE UPPER 60S TO LOWER 70S. NORTHWEST WIND 10 TO 15 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 40S. HIGHS  
IN THE UPPER 50S TO MID 60S. NORTH WIND 10 TO 20 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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