954  
FNUS55 KVEF 201143  
FWFVEF  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEVADA  
NORTHWEST ARIZONA AND SOUTHEAST CALIFORNIA  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
343 AM PST WED FEB 20 2019  
   
DISCUSSION
 
A POTENT LOW PRESSURE SYSTEM WILL DIVE DOWN FROM THE  
NORTH THROUGH THURSDAY, BRINING COLD AIR, GUSTY WINDS, SIGNIFICANT  
SNOWS FOR SOME, AND EVEN LOW ELEVATION SNOWS FOR OTHERS.  
 
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-NVZ466-210030-  
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-  
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-  
343 AM PST WED FEB 20 2019 /443 AM MST WED FEB 20 2019/  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.  
SCATTERED SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....53-58.  
* 24 HR TREND.....ON AVERAGE UP 2 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....22-32 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTH WIND 10 TO 15 MPH.  
* 10000 FT MSL....WEST 20 TO 30 MPH INCREASING TO SOUTHWEST 30 TO  
40 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....35 PERCENT.  
* LAL.................1.  
* HAINES INDEX........2.  
* MIXING HEIGHT.......7700 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 15 KNOTS INCREASING TO 20 TO 25  
KNOTS IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SNOW  
SHOWERS.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....33-38.  
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....83-88 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 29 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTH WIND UP TO 10 MPH.  
* 10000 FT MSL....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 30 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....65 PERCENT INCREASING TO 75 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS IN THE  
MORNING. SNOW SHOWERS THROUGH THE DAY. SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....48-53.  
* 24 HR TREND.....ON AVERAGE DOWN 5 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....42-52 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 20 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH.  
* 10000 FT MSL....SOUTHWEST 15 TO 25 MPH BECOMING WEST 10 TO 15 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....85 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......9500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. SCATTERED SHOWERS AND SNOW SHOWERS. LOWS  
IN THE 30S. HIGHS IN THE LOWER TO MID 50S. NORTH WIND 10 TO 15 MPH.   
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S TO MID 30S. HIGHS  
IN THE MID TO UPPER 50S. LIGHT WIND.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 30S. HIGHS IN THE  
MID 50S TO LOWER 60S. SOUTH WIND UP TO 10 MPH.  
 

 
 
AZZ102-210030-  
NORTHWEST DESERTS/NORTHWEST PLATEAU-  
443 AM MST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.  
SNOW SHOWERS LIKELY IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 3000 FEET.......48-53.  
* 6000 FEET.......30-35.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MIN HUMIDITY:  
* 3000 FEET.......26-36 PERCENT.  
* 6000 FEET.......45-55 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* 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 15 MPH.  
* 10000 FT MSL....WEST 20 TO 30 MPH INCREASING TO SOUTHWEST 30 TO  
40 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....5 PERCENT INCREASING TO 75 PERCENT IN THE  
AFTERNOON.  
* LAL.................1.  
* HAINES INDEX........2.  
* MIXING HEIGHT.......5700 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 20 KNOTS INCREASING TO 25 TO 30  
KNOTS IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........CLOUDY. NUMEROUS SHOWERS IN THE EVENING. SNOW  
SHOWERS THROUGH THE NIGHT. SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE:  
* 3000 FEET.......28-33.  
* 6000 FEET.......17-22.  
* 24 HR TREND.....ON AVERAGE UP 9 DEGREES.  
* MAX HUMIDITY:  
* 3000 FEET.......90-95 PERCENT.  
* 6000 FEET.......93-98 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 21 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 WITH GUSTS TO AROUND 30  
MPH.  
* 10000 FT MSL....SOUTHWEST 30 TO 40 MPH DECREASING TO 25 TO 35 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....90 PERCENT INCREASING TO 95 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SHOWERS.  
* MAX TEMPERATURE:  
* 3000 FEET.......42-47.  
* 6000 FEET.......23-28.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MIN HUMIDITY:  
* 3000 FEET.......53-63 PERCENT.  
* 6000 FEET.......75-85 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 28 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTHWEST WINDS UP TO 10 MPH.  
* UPPER SLOPES....SOUTHWEST WINDS UP TO 10 MPH.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH.  
* CWR (>= 0.10 IN)....95 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......6600 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 15 TO 25 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
FRIDAY
 
MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS IN THE LOWER  
TO MID 20S. HIGHS IN THE MID 30S TO LOWER 40S. NORTHWEST WINDS UP  
TO 10 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 15 TO 20. HIGHS IN THE LOWER TO MID  
40S. SOUTHWEST WINDS UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 20S. HIGHS IN THE  
MID 40S TO LOWER 50S. SOUTH WIND UP TO 10 MPH.  
 

 
 
NVZ465-210030-  
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
NUMEROUS SHOWERS AND SCATTERED SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......46-51.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......31-41 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 10 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 30  
MPH.  
* 10000 FT MSL....WEST 15 TO 25 MPH INCREASING TO SOUTHWEST 25 TO  
35 MPH IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....45 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......7000 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 10 KNOTS SHIFTING TO THE  
SOUTHWEST 15 TO 20 KNOTS IN THE AFTERNOON.  
* VENTILATION.........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS IN THE  
EVENING. SNOW SHOWERS LIKELY THROUGH THE NIGHT.  
* MIN TEMPERATURE:  
* 4000 FEET.......26-31.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......86-91 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 23 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....WEST WINDS UP TO 10 MPH IN THE EVENING BECOMING  
DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.  
* 10000 FT MSL....WEST 15 TO 20 MPH BECOMING NORTHWEST 10 TO 15 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....55 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY IN THE  
MORNING, THEN SCATTERED SNOW SHOWERS AND NUMEROUS SHOWERS IN THE  
AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......40-45.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......46-56 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 15 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST UP  
TO 10 MPH IN THE AFTERNOON.  
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....70 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......6900 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 10 KNOTS IN  
THE AFTERNOON.  
* VENTILATION.........GOOD TO VERY GOOD.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS IN THE LOWER  
TO MID 20S. HIGHS IN THE UPPER 30S TO LOWER 40S. NORTH WINDS 10 TO  
15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 19 TO 24. HIGHS IN THE 40S. LIGHT  
WIND.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 20S. HIGHS IN THE  
MID 40S TO LOWER 50S. LIGHT WIND.  
 

 
 
NVZ463-464-210030-  
SHEEP RANGE-SPRING MOUNTAINS-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SNOW SHOWERS LIKELY IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 7000 FEET.......30-35.  
* 24 HR TREND.....ON AVERAGE UP 2 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......41-51 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 9 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....SOUTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....WEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....5 PERCENT INCREASING TO 50 PERCENT IN THE  
AFTERNOON.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......4000 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 KNOTS.  
* VENTILATION.........GOOD TO VERY GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY.  
* MIN TEMPERATURE:  
* 7000 FEET.......11-16.  
* 24 HR TREND.....ON AVERAGE UP 2 DEGREES.  
* MAX HUMIDITY:  
* 7000 FEET.......86-91 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 22 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....WEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....70 PERCENT INCREASING TO 75 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY IN THE  
MORNING, THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 7000 FEET.......23-28.  
* 24 HR TREND.....ON AVERAGE DOWN 7 DEGREES.  
* MIN HUMIDITY:  
* 7000 FEET.......60-70 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 19 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* UPPER SLOPES....NORTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....80 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......6600 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 KNOTS.  
* VENTILATION.........GOOD TO VERY GOOD.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 11 TO 16.  
HIGHS IN THE UPPER 20S TO LOWER 30S. NORTHWEST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 9 TO 14. HIGHS IN THE LOWER TO MID  
30S. SOUTHWEST WINDS 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 14 TO 19. HIGHS IN THE MID TO UPPER  
30S. SOUTH WIND AROUND 10 MPH.  
 

 
 
NVZ461-210030-  
LINCOLN COUNTY/ELY DISPATCH-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE  
MORNING, THEN SNOW SHOWERS LIKELY IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......38-43.  
* 7000 FEET.......24-29.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 4000 FEET.......41-51 PERCENT.  
* 7000 FEET.......57-67 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.  
* UPPER SLOPES....SOUTH WIND 10 TO 15 MPH.  
* 10000 FT MSL....SOUTHWEST 20 TO 30 MPH.  
* CWR (>= 0.10 IN)....30 PERCENT INCREASING TO 55 PERCENT IN THE  
AFTERNOON.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......4200 FT AGL.  
* TRANSPORT WINDS.....SOUTH 10 TO 15 KNOTS.  
* VENTILATION.........GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY.  
* MIN TEMPERATURE:  
* 4000 FEET.......24-29.  
* 7000 FEET.......9-14.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......89-94 PERCENT.  
* 7000 FEET.......90-95 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 10 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH BECOMING NORTH UP  
TO 10 MPH AFTER MIDNIGHT. GUSTS UP TO 20 MPH.  
* UPPER SLOPES....SOUTH WIND UP TO 10 MPH SHIFTING TO THE NORTH  
AFTER MIDNIGHT.  
* 10000 FT MSL....WEST 10 TO 15 MPH SHIFTING TO THE NORTHEAST AFTER  
MIDNIGHT.  
* CWR (>= 0.10 IN)....65 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY IN THE  
MORNING, THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......36-41.  
* 7000 FEET.......24-29.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 4000 FEET.......53-63 PERCENT.  
* 7000 FEET.......60-70 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 8 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND UP TO 10 MPH WITH GUSTS TO AROUND 25  
MPH.  
* UPPER SLOPES....NORTH WIND 10 TO 15 MPH.  
* 10000 FT MSL....NORTHEAST 10 TO 15 MPH.  
* CWR (>= 0.10 IN)....70 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......5600 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS.  
* VENTILATION.........FAIR.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 6 TO 11.  
HIGHS IN THE UPPER 30S TO LOWER 40S. NORTH WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 5 TO 10. HIGHS IN THE 40S. SOUTHWEST  
WIND UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 12 TO 17. HIGHS IN THE MID TO UPPER  
40S. SOUTH WIND AROUND 10 MPH.  
 

 
 
NVZ462-210030-  
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE  
AFTERNOON.  
* MAX TEMPERATURE:  
* 4000 FEET.......44-49.  
* 7000 FEET.......26-31.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 4000 FEET.......33-42 PERCENT.  
* 7000 FEET.......47-57 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 12 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....SOUTH WIND UP TO 10 MPH.  
* UPPER SLOPES....WEST WIND UP TO 10 MPH.  
* 10000 FT MSL....WEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....25 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......5700 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 10 KNOTS.  
* VENTILATION.........GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS.  
* MIN TEMPERATURE:  
* 4000 FEET.......26-31.  
* 7000 FEET.......12-17.  
* 24 HR TREND.....LITTLE CHANGE.  
* MAX HUMIDITY:  
* 4000 FEET.......70-75 PERCENT.  
* 7000 FEET.......79-84 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 9 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND UP TO 10 MPH.  
* UPPER SLOPES....NORTH WIND 10 TO 15 MPH.  
* 10000 FT MSL....NORTHWEST 15 TO 20 MPH SHIFTING TO THE NORTH 10  
TO 20 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....25 PERCENT DECREASING TO 15 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SNOW SHOWERS.  
* MAX TEMPERATURE:  
* 4000 FEET.......42-47.  
* 7000 FEET.......24-29.  
* 24 HR TREND.....ON AVERAGE DOWN 2 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......29-39 PERCENT.  
* 7000 FEET.......49-59 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
* UPPER SLOPES....NORTH WIND 10 TO 15 MPH.  
* 10000 FT MSL....NORTHEAST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....15 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......9200 FT AGL.  
* TRANSPORT WINDS.....NORTHWEST AROUND 10 KNOTS.  
* VENTILATION.........VERY GOOD.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS 12 TO 17.  
HIGHS IN THE LOWER TO MID 40S. NORTH WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 11 TO 16. HIGHS IN THE 40S. SOUTH  
WIND UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 16 TO 21. HIGHS IN THE MID 40S TO  
LOWER 50S. SOUTH WIND AROUND 10 MPH.  
 

 
 
NVZ460-210030-  
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SNOW SHOWERS THROUGH  
THE DAY.  
* MAX TEMPERATURE:  
* 4000 FEET.......38-43.  
* 7000 FEET.......29-34.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* 4000 FEET.......37-43 PERCENT.  
* 7000 FEET.......44-54 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 10 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTH UP TO  
10 MPH IN THE AFTERNOON.  
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST  
AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.  
* 10000 FT MSL....NORTHWEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....10 PERCENT INCREASING TO 40 PERCENT IN THE  
AFTERNOON.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......8000 FT AGL.  
* TRANSPORT WINDS.....LIGHT WINDS.  
* VENTILATION.........FAIR TO GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY IN THE  
EVENING, THEN SCATTERED SNOW SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE:  
* 4000 FEET.......20-25.  
* 7000 FEET.......9-14.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MAX HUMIDITY:  
* 4000 FEET.......70-75 PERCENT.  
* 7000 FEET.......77-82 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 6 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WIND 10 TO 15 MPH.  
* UPPER SLOPES....NORTHWEST WIND 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 20 TO 30 MPH.  
* CWR (>= 0.10 IN)....40 PERCENT DECREASING TO 5 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SNOW SHOWERS.  
* MAX TEMPERATURE:  
* 4000 FEET.......37-42.  
* 7000 FEET.......24-29.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* 4000 FEET.......31-37 PERCENT.  
* 7000 FEET.......51-61 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTH WIND 10 TO 20 MPH.  
* UPPER SLOPES....NORTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
* 10000 FT MSL....NORTH 25 TO 35 MPH.  
* CWR (>= 0.10 IN)....5 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
* MIXING HEIGHT.......9400 FT AGL.  
* TRANSPORT WINDS.....NORTH 20 TO 30 KNOTS.  
* VENTILATION.........EXCELLENT.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. LOWS 10 TO 15. HIGHS IN THE LOWER TO MID  
40S. NORTHWEST WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 13 TO 18. HIGHS IN THE 40S. SOUTH  
WIND UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS 18 TO 23. HIGHS IN THE MID 40S TO  
LOWER 50S. LIGHT WIND.  
 

 
 
CAZ226-210030-  
OWENS VALLEY/SOUTHERN INYO FOREST-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SNOW SHOWERS IN THE  
MORNING. SCATTERED SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....45-50.  
* 7000 FEET.......29-34.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* VALLEY FLOOR....30-38 PERCENT.  
* 7000 FEET.......40-50 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 9 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS UP TO 10 MPH.  
* UPPER SLOPES....WEST WINDS 15 TO 25 MPH. GUSTS UP TO 50 MPH  
DECREASING TO 35 MPH IN THE AFTERNOON.  
* 10000 FT MSL....NORTHWEST 20 TO 30 MPH DECREASING TO 15 TO 25 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....10 PERCENT INCREASING TO 25 PERCENT IN THE  
AFTERNOON.  
* LAL.................1.  
* HAINES INDEX........3.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY IN THE  
EVENING, THEN SCATTERED SNOW SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....21-26.  
* 7000 FEET.......5 BELOW-10 BELOW ZERO.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....61-66 PERCENT.  
* 7000 FEET.......69-74 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS 10 TO 15 MPH.  
* UPPER SLOPES....WEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING.  
* 10000 FT MSL....NORTHWEST 10 TO 20 MPH INCREASING TO NORTH 20 TO  
30 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....30 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....39-44.  
* 7000 FEET.......22-27.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....28-38 PERCENT.  
* 7000 FEET.......47-57 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 3 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* SLOPE/VALLEY....NORTHWEST WINDS 10 TO 15 MPH.  
* UPPER SLOPES....NORTHWEST WINDS 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 20 TO 30 MPH.  
* CWR (>= 0.10 IN)....20 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS 11 TO 16.  
HIGHS IN THE LOWER TO MID 40S. NORTHWEST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 17 TO 22. HIGHS IN THE MID 40S TO  
LOWER 50S. SOUTH WINDS UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE 20S. HIGHS IN THE UPPER 40S TO  
LOWER 50S. SOUTH WIND AROUND 10 MPH.  
 

 
 
CAZ227-210030-  
DEATH VALLEY NATIONAL PARK-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
SCATTERED SHOWERS AND SNOW SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....57-62.  
* 24 HR TREND.....LITTLE CHANGE.  
* MIN HUMIDITY:  
* VALLEY FLOOR....23-27 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 10 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH.  
* 10000 FT MSL....NORTHWEST 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....15 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS AND  
SHOWERS.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....41-46.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MAX HUMIDITY:  
* VALLEY FLOOR....46-51 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 4 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND UP TO 10 MPH.  
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH INCREASING TO NORTH 15 TO  
25 MPH AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....15 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SNOW SHOWERS AND  
SHOWERS THROUGH THE DAY.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....54-59.  
* 24 HR TREND.....ON AVERAGE DOWN 3 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....19-22 PERCENT.  
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND 10 TO 15 MPH.  
* 10000 FT MSL....NORTH 15 TO 25 MPH.  
* CWR (>= 0.10 IN)....15 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE 30S. HIGHS IN THE UPPER 50S TO  
MID 60S. NORTHWEST WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 30S. HIGHS IN  
THE 60S. SOUTHEAST WIND UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO LOWER 40S. HIGHS  
IN THE MID TO UPPER 60S. SOUTHEAST WIND UP TO 10 MPH.  
 

 
 
CAZ228-210030-  
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-  
343 AM PST WED FEB 20 2019  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.  
ISOLATED SHOWERS IN THE AFTERNOON.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....53-58.  
* 24 HR TREND.....ON AVERAGE UP 3 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....28-38 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 13 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....SOUTHWEST WIND 10 TO 15 MPH INCREASING TO 15 TO  
25 MPH IN THE AFTERNOON. GUSTS UP TO 45 MPH.  
* 10000 FT MSL....WEST 25 TO 35 MPH INCREASING TO 30 TO 40 MPH IN  
THE AFTERNOON.  
* CWR (>= 0.10 IN)....5 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND SNOW  
SHOWERS.  
* MIN TEMPERATURE:  
* VALLEY FLOOR....28-33.  
* 24 HR TREND.....LITTLE CHANGE.  
* MAX HUMIDITY:  
* VALLEY FLOOR....77-82 PERCENT.  
* 24 HR TREND.....ON AVERAGE UP 20 PERCENT.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....WEST WIND 10 TO 15 MPH. GUSTS UP TO 35 MPH IN THE  
EVENING.  
* 10000 FT MSL....WEST 25 TO 35 MPH DECREASING TO 20 TO 30 MPH  
AFTER MIDNIGHT.  
* CWR (>= 0.10 IN)....20 PERCENT INCREASING TO 35 PERCENT AFTER  
MIDNIGHT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
THURSDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
SCATTERED SNOW SHOWERS AND SHOWERS.  
* MAX TEMPERATURE:  
* VALLEY FLOOR....47-52.  
* 24 HR TREND.....ON AVERAGE DOWN 6 DEGREES.  
* MIN HUMIDITY:  
* VALLEY FLOOR....28-38 PERCENT.  
* 24 HR TREND.....LITTLE CHANGE.  
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):  
* VALLEY FLOOR....NORTHWEST WIND 10 TO 15 MPH.  
* 10000 FT MSL....WEST 20 TO 30 MPH BECOMING NORTHWEST 15 TO 25 MPH  
IN THE AFTERNOON.  
* CWR (>= 0.10 IN)....50 PERCENT.  
* LAL.................1.  
* HAINES INDEX........3.  
   
EXTENDED
 
   
FRIDAY
 
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS IN THE UPPER  
20S TO LOWER 30S. HIGHS IN THE UPPER 40S TO LOWER 50S. NORTHWEST  
WIND 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S TO LOWER 30S. HIGHS  
IN THE 50S. SOUTH WIND UP TO 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 30S. HIGHS IN THE  
MID 50S TO LOWER 60S. SOUTH WIND AROUND 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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