504
FNUS55 KVEF 200728
FWFVEF
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEVADA
NORTHWEST ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE LAS VEGAS NV
1228 AM PDT WED MAY 20 2026
DISCUSSION
DRY CONDITIONS WITH SINGLE-DIGIT AFTERNOON RELATIVE
HUMIDITIES WILL CONTINUE THROUGH THE WEEKEND WITH PERIODS OF
AFTERNOON BREEZES. EXPECT OVERNIGHT RECOVERIES BETWEEN 15 AND 25
PERCENT FOR DESERT VALLEYS AND ABOVE 30 PERCENT FOR HIGHER
ELEVATIONS. AFOREMENTIONED BREEZES WILL GENERALLY RANGE FROM 10
TO 20 MPH FROM THE NORTH-NORTHWEST THROUGH THURSDAY, THEN FROM THE
SOUTH-SOUTHWEST.
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-NVZ466-202315-
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
1228 AM PDT WED MAY 20 2026 /1228 AM MST WED MAY 20 2026/
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....91-96.
* 24 HR TREND.....ON AVERAGE UP 4 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....4-9 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 35
MPH.
* 10000 FT MSL....NORTH 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......11200 FT AGL.
* TRANSPORT WINDS.....NORTH 10 TO 15 KNOTS.
* VENTILATION.........EXCELLENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* VALLEY FLOOR....59-64.
* 24 HR TREND.....ON AVERAGE UP 4 DEGREES.
* MAX HUMIDITY:
* VALLEY FLOOR....13-18 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTH AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....96-101.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....3-8 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH UP TO
10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* 10000 FT MSL....NORTHWEST 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......13200 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 KNOTS.
* VENTILATION.........EXCELLENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS IN THE 60S. HIGHS 97 TO 102. SOUTH
WIND AROUND 10 MPH.
SATURDAY
CLEAR. LOWS IN THE MID 60S TO LOWER 70S. HIGHS 96 TO
101. SOUTH WIND 10 TO 15 MPH.
SUNDAY
CLEAR. LOWS IN THE MID 60S TO LOWER 70S. HIGHS 98 TO
103. SOUTH WIND AROUND 10 MPH.
AZZ102-202315-
NORTHWEST DESERTS/NORTHWEST PLATEAU-
1228 AM MST WED MAY 20 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 3000 FEET.......86-91.
* 6000 FEET.......69-74.
* 24 HR TREND.....ON AVERAGE UP 4 DEGREES.
* MIN HUMIDITY:
* 3000 FEET.......5-8 PERCENT.
* 6000 FEET.......10-12 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....NORTH WINDS AROUND 10 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* UPPER SLOPES....NORTHEAST WINDS 5 TO 10 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* 10000 FT MSL....EAST 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......11200 FT AGL.
* TRANSPORT WINDS.....LIGHT WINDS.
* VENTILATION.........GOOD.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 3000 FEET.......52-57.
* 6000 FEET.......36-41.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* 3000 FEET.......14-19 PERCENT.
* 6000 FEET.......23-28 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 10 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....NORTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* UPPER SLOPES....NORTHWEST WINDS AROUND 10 MPH IN THE EVENING
BECOMING DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTHWEST 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 3000 FEET.......89-94.
* 6000 FEET.......73-78.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* 3000 FEET.......5-7 PERCENT.
* 6000 FEET.......7-10 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHWEST
AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST 10 TO
15 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.
* 10000 FT MSL....WEST AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......12200 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 10 KNOTS.
* VENTILATION.........VERY GOOD.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS IN THE 50S. HIGHS IN THE MID TO
UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 50S. HIGHS IN
THE MID 80S TO LOWER 90S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
CLEAR. LOWS IN THE MID 50S TO LOWER 60S. HIGHS IN THE
UPPER 80S TO LOWER 90S. SOUTHWEST WINDS AROUND 10 MPH.
NVZ465-202315-
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......84-89.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......5-8 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 30
MPH.
* 10000 FT MSL....NORTH 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......11500 FT AGL.
* TRANSPORT WINDS.....NORTH 10 TO 15 KNOTS.
* VENTILATION.........EXCELLENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 4000 FEET.......53-58.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* 4000 FEET.......14-19 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTH AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......91-96.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......5-8 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHWEST
AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* 10000 FT MSL....WEST AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......14300 FT AGL.
* TRANSPORT WINDS.....LIGHT WINDS.
* VENTILATION.........EXCELLENT.
EXTENDED
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S TO LOWER 60S. HIGHS
IN THE MID TO UPPER 80S. SOUTH WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S TO LOWER 60S. HIGHS
IN THE MID 80S TO LOWER 90S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY
CLEAR. LOWS IN THE MID 50S TO LOWER 60S. HIGHS IN THE
UPPER 80S TO LOWER 90S. SOUTH WINDS AROUND 10 MPH.
NVZ463-464-202315-
SHEEP RANGE-SPRING MOUNTAINS-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 7000 FEET.......67-72.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MIN HUMIDITY:
* 7000 FEET.......7-13 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTH 10 MPH
IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* 10000 FT MSL....NORTH 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......10600 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 10 KNOTS.
* VENTILATION.........EXCELLENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 7000 FEET.......36-41.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* 7000 FEET.......19-24 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* UPPER SLOPES....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTH 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 7000 FEET.......73-78.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MIN HUMIDITY:
* 7000 FEET.......8-13 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST AROUND
10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* 10000 FT MSL....WEST AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......15500 FT AGL.
* TRANSPORT WINDS.....WEST 10 KNOTS.
* VENTILATION.........EXCELLENT.
EXTENDED
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 40S. HIGHS IN
THE LOWER TO MID 70S. SOUTH WINDS 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 40S. HIGHS IN
THE 70S. SOUTH WINDS 10 MPH.
SUNDAY
CLEAR. LOWS IN THE 40S. HIGHS IN THE MID TO UPPER 70S.
SOUTH WINDS 10 MPH.
NVZ461-202315-
LINCOLN COUNTY/ELY DISPATCH-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......81-86.
* 7000 FEET.......65-70.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......7-9 PERCENT.
* 7000 FEET.......10-15 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....NORTH WIND 5 TO 10 MPH WITH GUSTS TO AROUND 25
MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY 4 TO 8 MPH.
* UPPER SLOPES....NORTHEAST WIND 5 TO 10 MPH. GUSTS UP TO 25 MPH
IN THE MORNING.
* 10000 FT MSL....NORTH 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......11200 FT AGL.
* TRANSPORT WINDS.....NORTHEAST 10 TO 15 KNOTS.
* VENTILATION.........EXCELLENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 4000 FEET.......47-52.
* 7000 FEET.......39-44.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MAX HUMIDITY:
* 4000 FEET.......21-26 PERCENT.
* 7000 FEET.......28-33 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* UPPER SLOPES....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTHWEST AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......88-93.
* 7000 FEET.......73-78.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......7-9 PERCENT.
* 7000 FEET.......10-15 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST AROUND
10 MPH WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST 10
TO 15 MPH IN THE AFTERNOON. GUSTS UP TO 35 MPH.
* 10000 FT MSL....WEST 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......14800 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 KNOTS.
* VENTILATION.........EXCELLENT.
EXTENDED
FRIDAY
PARTLY CLOUDY. LOWS IN THE 40S. HIGHS IN THE MID 80S TO
LOWER 90S. NORTH WIND 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
HIGHS IN THE UPPER 80S TO MID 90S. SOUTH WIND 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS
IN THE LOWER TO MID 90S. SOUTH WIND 10 TO 15 MPH.
NVZ462-202315-
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......83-88.
* 7000 FEET.......66-71.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......6-8 PERCENT.
* 7000 FEET.......9-12 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....NORTH WIND 5 TO 10 MPH WITH GUSTS TO AROUND 20
MPH.
* UPPER SLOPES....NORTH WIND 5 TO 10 MPH WITH GUSTS TO AROUND 20
MPH.
* 10000 FT MSL....NORTH AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......11100 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 10 KNOTS.
* VENTILATION.........VERY GOOD.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 4000 FEET.......48-53.
* 7000 FEET.......43-48.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MAX HUMIDITY:
* 4000 FEET.......16-21 PERCENT.
* 7000 FEET.......21-26 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* UPPER SLOPES....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTHWEST 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......90-95.
* 7000 FEET.......73-78.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......6-8 PERCENT.
* 7000 FEET.......10-13 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING WEST 10 TO
15 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* UPPER SLOPES....NORTHWEST WIND 5 TO 10 MPH INCREASING TO 10 TO
15 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......13300 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 KNOTS.
* VENTILATION.........EXCELLENT.
EXTENDED
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S. HIGHS
IN THE MID 80S TO LOWER 90S. SOUTH WIND 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS
IN THE UPPER 80S TO LOWER 90S. SOUTH WIND 10 TO 15 MPH.
SUNDAY
CLEAR. LOWS IN THE MID 40S TO LOWER 50S. HIGHS IN THE
LOWER TO MID 90S. SOUTH WIND 10 TO 15 MPH.
NVZ460-202315-
ESMERALDA AND NYE COUNTY DESERTS/CNC DISPATCH-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......79-83.
* 7000 FEET.......66-71.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......7-8 PERCENT.
* 7000 FEET.......9-14 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH.
* 10000 FT MSL....NORTH 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......9800 FT AGL.
* TRANSPORT WINDS.....LIGHT WINDS.
* VENTILATION.........FAIR.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* 4000 FEET.......43-48.
* 7000 FEET.......43-48.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* 4000 FEET.......19-24 PERCENT.
* 7000 FEET.......22-27 PERCENT.
* 24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* UPPER SLOPES....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTHWEST AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* 4000 FEET.......85-89.
* 7000 FEET.......72-77.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MIN HUMIDITY:
* 4000 FEET.......7-8 PERCENT.
* 7000 FEET.......10-16 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST
AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTHWEST 10
TO 15 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* 10000 FT MSL....NORTHWEST 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
* MIXING HEIGHT.......13700 FT AGL.
* TRANSPORT WINDS.....LIGHT WINDS.
* VENTILATION.........GOOD.
EXTENDED
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S TO LOWER 50S.
HIGHS IN THE MID TO UPPER 80S. NORTHWEST WIND 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS
IN THE MID 80S TO LOWER 90S. SOUTH WIND 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO MID 50S. HIGHS
IN THE MID 80S TO LOWER 90S. SOUTH WIND 5 TO 10 MPH.
CAZ226-202315-
OWENS VALLEY/SOUTHERN INYO FOREST-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....82-87.
* 7000 FEET.......68-73.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....6-9 PERCENT.
* 7000 FEET.......10-20 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH UP TO
10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH AROUND
10 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* 10000 FT MSL....LIGHT AND VARIABLE.
* CWR (>= 0.10 IN)....0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* VALLEY FLOOR....51-56.
* 7000 FEET.......26-31.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* VALLEY FLOOR....27-32 PERCENT.
* 7000 FEET.......35-40 PERCENT.
* 24 HR TREND.....ON AVERAGE UP 4 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* UPPER SLOPES....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....LIGHT AND VARIABLE.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....88-93.
* 7000 FEET.......74-79.
* 24 HR TREND.....ON AVERAGE UP 7 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....7-10 PERCENT.
* 7000 FEET.......14-24 PERCENT.
* 24 HR TREND.....ON AVERAGE UP 2 PERCENT.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHWEST UP
TO 10 MPH IN THE AFTERNOON. GUSTS UP TO 25 MPH.
* UPPER SLOPES....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHWEST
AROUND 10 MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.
* 10000 FT MSL....LIGHT AND VARIABLE.
* CWR (>= 0.10 IN)....0 PERCENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 50S. HIGHS IN
THE MID 80S TO LOWER 90S. SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 50S. HIGHS IN
THE UPPER 80S TO LOWER 90S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE 50S. HIGHS IN THE UPPER 80S
TO LOWER 90S. SOUTHEAST WINDS 5 TO 10 MPH.
CAZ227-202315-
DEATH VALLEY NATIONAL PARK-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....96-101.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....4-6 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH.
* 10000 FT MSL....NORTH AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* VALLEY FLOOR....69-74.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* VALLEY FLOOR....10-15 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTH 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....102-107.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....4-6 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTH UP TO
10 MPH IN THE AFTERNOON.
* 10000 FT MSL....LIGHT AND VARIABLE.
* CWR (>= 0.10 IN)....0 PERCENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 70S. HIGHS
105 TO 110. SOUTHEAST WIND 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 70S. HIGHS
106 TO 111. SOUTH WIND 5 TO 10 MPH.
SUNDAY
CLEAR. LOWS IN THE 70S. HIGHS 106 TO 111. SOUTH WIND UP
TO 10 MPH.
CAZ228-202315-
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-
1228 AM PDT WED MAY 20 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....89-94.
* 24 HR TREND.....ON AVERAGE UP 6 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....4-7 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....NORTH WIND 5 TO 10 MPH WITH GUSTS TO AROUND 30
MPH.
* 10000 FT MSL....NORTH 10 TO 15 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF THUNDER...0 PERCENT.
* MIN TEMPERATURE:
* VALLEY FLOOR....55-60.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MAX HUMIDITY:
* VALLEY FLOOR....16-21 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.
* 10000 FT MSL....NORTH AROUND 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
THURSDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF THUNDER...0 PERCENT.
* MAX TEMPERATURE:
* VALLEY FLOOR....94-99.
* 24 HR TREND.....ON AVERAGE UP 5 DEGREES.
* MIN HUMIDITY:
* VALLEY FLOOR....4-7 PERCENT.
* 24 HR TREND.....LITTLE CHANGE.
* WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):
* VALLEY FLOOR....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHWEST UP
TO 10 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.
* 10000 FT MSL....WEST 5 TO 10 MPH.
* CWR (>= 0.10 IN)....0 PERCENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S TO MID 60S. HIGHS
IN THE 90S. SOUTH WIND 5 TO 10 MPH.
SATURDAY
CLEAR. LOWS IN THE UPPER 50S TO MID 60S. HIGHS IN THE
MID TO UPPER 90S. SOUTH WIND AROUND 10 MPH.
SUNDAY
CLEAR. LOWS IN THE UPPER 50S TO MID 60S. HIGHS IN THE
90S. 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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