672
FNUS55 KREV 021950
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1250 PM PDT WED SEP 2 2026
DISCUSSION
GUSTY SOUTHWEST WINDS TO 30-35 MPH CONTINUE THROUGH THURSDAY EVENING.
HOWEVER, RELATIVE HUMIDITY CONTINUES TO INCREASE ABOVE CRITICAL
THRESHOLDS OVER THE NEXT FEW DAYS WHICH MITIGATES THE FIRE RISK.
TEMPERATURES ARE EXPECTED TO BE 10-20 DEGREES BELOW AVERAGE TOO.
SHOWER CHANCES INCREASE THIS EVENING THROUGH FRIDAY MORNING FOR
PORTIONS OF NE CALIFORNIA AND NW NEVADA. THERE IS A 5-15% OF
ISOLATED THUNDERSTORMS EMBEDDED WITH THOSE SHOWERS.
NOTE: THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS.
NOTE: MIXING HEIGHTS ARE IN FEET ABOVE GROUND LEVEL OF THE VALLEY FLOORS.
NOTE: PLEASE SEE OPERATING PLAN FOR DETAILED ZONE DESCRIPTIONS
HTTPS://WWW.WEATHER.GOV/WRH/FIRE?WFO=REV
NVZ420-030145-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. AREAS OF BLOWING DUST IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........65-75.
* MID SLOPE........62-72.
* 24 HR TREND......6 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........20-30%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH WITH GUSTS TO 25 MPH IN
THE MORNING BECOMING UPSLOPE 4 TO 8 MPH, THEN
BECOMING SOUTHWEST 15 TO 25 MPH WITH GUSTS TO
40 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS TO 40 MPH.
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 5100-6100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........43-52.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........62-72%.
* MID SLOPE........41-51%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35
MPH DECREASING TO 9 TO 15 MPH WITH GUSTS TO 25
MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......2700-3700 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH DECREASING TO 15 TO 20
MPH AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. AREAS OF BLOWING DUST IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........66-76.
* MID SLOPE........63-73.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH WITH GUSTS TO 30 MPH
INCREASING TO SOUTHWEST 20 TO 30 MPH WITH
GUSTS TO 45 MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1900-2900 FT AGL INCREASING TO 5400-6400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 25 TO 35
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. CHANCE OF SHOWERS. LOWS 43-53. SOUTHWEST WINDS 15 TO 25 MPH
SHIFTING TO THE WEST 8 TO 13 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 64-74. LOWS 38-48. WEST
WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 68-78. LOWS 38-48. SLOPE WINDS.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 68-78. LOWS 41-51.
WEST WINDS 10 TO 15 MPH.
LABOR DAY
CLEAR. HIGHS 66-76. LOWS 41-51.
TUESDAY
SUNNY. HIGHS 70-80.
NVZ421-030145-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........67-77.
* MID SLOPE........60-70.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........12-22%.
* 24 HR TREND......7% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHEAST WINDS 5 TO 10 MPH IN THE MORNING
BECOMING UPSLOPE 4 TO 8 MPH, THEN BECOMING
SOUTHWEST 9 TO 16 MPH EARLY IN THE AFTERNOON
INCREASING TO 15 TO 25 MPH. GUSTS TO 35 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1700-2700 FT AGL INCREASING TO 5300-6300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........44-54.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........54-64%.
* MID SLOPE........37-47%.
* 24 HR TREND......7% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35
MPH BECOMING SOUTH 5 TO 10 MPH WITH GUSTS TO
25 MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH DECREASING TO 10 TO 15
MPH AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........69-79.
* MID SLOPE........62-72.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........18-28%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH WITH GUSTS TO 35 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 40
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 5600-6600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
LOWS 36-46. SOUTHWEST WINDS 15 TO 25 MPH BECOMING DOWNSLOPE 2 TO
5 MPH.
FRIDAY
CLEAR. HIGHS 68-78. LOWS 34-44. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 70-80. LOWS 34-44. SOUTHWEST WINDS 10 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 68-78. LOWS
35-45. SOUTHWEST WINDS 10 TO 15 MPH.
LABOR DAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 67-77.
LOWS 35-45.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 69-79.
CAZ272-030145-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........50-60.
* 24 HR TREND......6 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........33-43%.
* MID SLOPE........33-43%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 17 MPH WITH GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 3800-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........35-45.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........80-90%.
* MID SLOPE........59-69%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 18 MPH WITH GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1800-2800 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........VERY GOOD DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........50-60.
* MIN HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........44-54%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 17 MPH. GUSTS TO 30 MPH IN
THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 45
MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO
40 MPH IN THE AFTERNOON.
* MIXING HEIGHT......1500-2500 FT AGL INCREASING TO 3600-4600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH INCREASING TO 30 TO 35
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT. LOWS 37-47. SOUTHWEST WINDS 10 TO 17 MPH
INCREASING TO 15 TO 25 MPH IN THE LATE EVENING AND EARLY MORNING,
THEN DECREASING TO 9 TO 16 MPH IN THE MORNING.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 52-62. LOWS 33-43.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 59-69. LOWS 33-43. SLOPE WINDS.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 57-67. LOWS 35-45.
SOUTHWEST WINDS 10 TO 15 MPH.
LABOR DAY
CLEAR. HIGHS 60-70. LOWS 35-45.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS. HIGHS 63-73.
NVZ423-030145-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
AREAS OF BLOWING DUST IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........69-79.
* MID SLOPE........65-75.
* 24 HR TREND......7 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........18-28%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 8 TO 13 MPH WITH GUSTS TO 20 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 35
MPH.
* RIDGE TOP........WEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......2100-3100 FT AGL INCREASING TO 6400-7400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. AREAS OF
BLOWING DUST IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........44-53.
* MID SLOPE........45-54.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........36-46%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 13 TO 20 MPH WITH GUSTS TO 30 MPH
BECOMING SOUTH 5 TO 10 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......3700-4700 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 15 TO 25 MPH SHIFTING TO THE SOUTHWEST 10
TO 15 MPH AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY. AREAS OF BLOWING DUST IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........20-30%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH
INCREASING TO SOUTHWEST 15 TO 25 MPH WITH
GUSTS TO 40 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35
MPH.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 6800-7800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
MOSTLY CLOUDY. AREAS OF BLOWING DUST IN THE
EVENING. CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 45-54. WEST WINDS
15 TO 25 MPH BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 68-78. LOWS 42-52.
WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 72-82. LOWS 42-52. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 74-82. LOWS
45-55. WEST WINDS 10 TO 15 MPH.
LABOR DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 70-78. LOWS
43-53.
TUESDAY
SUNNY. HIGHS 75-81.
NVZ429-030145-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
AREAS OF BLOWING DUST IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........73-83.
* MID SLOPE........69-79.
* 24 HR TREND......4 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........11-21%.
* 24 HR TREND......6% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH IN
THE MORNING BECOMING UPSLOPE 4 TO 8 MPH, THEN
BECOMING SOUTHWEST 7 TO 12 MPH WITH GUSTS TO
25 MPH EARLY IN THE AFTERNOON INCREASING TO
WEST 10 TO 17 MPH WITH GUSTS TO 30 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 7100-8100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH SHIFTING TO THE SOUTHWEST 15
TO 25 MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. AREAS OF
BLOWING DUST IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........45-55.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........59-69%.
* MID SLOPE........37-47%.
* 24 HR TREND......10% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 13 TO 20 MPH WITH GUSTS TO 35 MPH
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......3900-4900 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 15 TO 25 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. AREAS OF BLOWING DUST IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........75-85.
* MID SLOPE........72-82.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........15-25%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 12 TO 18
MPH WITH GUSTS TO 35 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN
THE AFTERNOON.
* MIXING HEIGHT......1600-2600 FT AGL INCREASING TO 7500-8500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 15 TO 25 MPH IN
THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. AREAS OF BLOWING DUST IN THE EVENING. LOWS
43-53. WEST WINDS 15 TO 25 MPH SHIFTING TO THE NORTHWEST 9 TO
14 MPH.
FRIDAY
CLEAR. HIGHS 73-83. LOWS 42-52. NORTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 74-84. LOWS 42-52. NORTHWEST WINDS 10 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 73-83. LOWS
45-55. WEST WINDS 10 TO 15 MPH.
LABOR DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 70-80. LOWS
45-55.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 73-83.
CAZ270-278-NVZ458-030145-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. AREAS OF BLOWING DUST IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........62-72.
* MID SLOPE........57-67.
* 24 HR TREND......9 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........27-37%.
* 24 HR TREND......16% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH WITH GUSTS TO 25 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 35
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 4700-5700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
AREAS OF BLOWING DUST IN THE EVENING. CHANCE
OF SHOWERS.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........40-50.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........71-81%.
* MID SLOPE........57-67%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40
MPH DECREASING TO 12 TO 18 MPH WITH GUSTS TO
35 MPH IN THE MORNING.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF SHOWERS. AREAS OF BLOWING DUST IN
THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........57-67.
* MID SLOPE........52-62.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........39-49%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 17 MPH WITH GUSTS TO 30 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 40
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 2800-3800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
PATCHY BLOWING DUST IN THE EVENING. SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. SHOWERS LIKELY. LOWS 32-42.
SOUTHWEST WINDS 13 TO 20 MPH BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 61-71. LOWS 29-39. WEST
WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 66-76. LOWS 29-39. WEST WINDS 10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 66-76. LOWS 34-44. WEST WINDS 10 TO 15 MPH.
LABOR DAY
CLEAR. HIGHS 65-75. LOWS 34-44.
TUESDAY
SUNNY. HIGHS 71-81.
CAZ271-030145-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........56-66.
* MID SLOPE........53-63.
* 24 HR TREND......7 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........31-41%.
* MID SLOPE........31-41%.
* 24 HR TREND......17% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 9 TO 17
MPH WITH GUSTS TO 30 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......1700-2700 FT AGL INCREASING TO 3800-4800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........30-40.
* MID SLOPE........38-48.
* 24 HR TREND......5 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........83-93%.
* MID SLOPE........70-80%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH INCREASING TO 12 TO
18 MPH IN THE LATE EVENING AND EARLY MORNING,
THEN DECREASING TO 8 TO 13 MPH IN THE MORNING.
GUSTS TO 30 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......2400-3400 FT AGL DECREASING TO 800-1300 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..10%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........51-61.
* MID SLOPE........48-58.
* MIN HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........47-57%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH. GUSTS TO 25 MPH
INCREASING TO 30 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 2000-3000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS 30-40.
SOUTHWEST WINDS 7 TO 12 MPH IN THE EVENING BECOMING DOWNSLOPE 2 TO
5 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 56-66. LOWS 25-35.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 63-73. LOWS 25-35. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 62-72. LOWS 29-39.
SOUTHWEST WINDS 10 TO 15 MPH.
LABOR DAY
CLEAR. HIGHS 64-74. LOWS 29-39.
TUESDAY
SUNNY. HIGHS 70-80.
CAZ274-030145-
SOUTHERN MONO COUNTY-
1250 PM PDT WED SEP 2 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........64-74.
* MID SLOPE........60-70.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........12-22%.
* 24 HR TREND......7% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO 30 MPH
IN THE MORNING BECOMING UPSLOPE 4 TO 8 MPH,
THEN BECOMING SOUTHWEST 9 TO 15 MPH WITH GUSTS
TO 30 MPH EARLY IN THE AFTERNOON INCREASING TO
13 TO 20 MPH WITH GUSTS TO 35 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1500-2500 FT AGL INCREASING TO 5700-6700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........36-46.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........58-68%.
* MID SLOPE........37-47%.
* 24 HR TREND......14% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 17 MPH DECREASING TO 7 TO
12 MPH IN THE MORNING. GUSTS TO 25 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........67-77.
* MID SLOPE........63-73.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........20-30%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 15 MPH WITH GUSTS TO 30 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 35
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......1600-2600 FT AGL INCREASING TO 5400-6400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 20 TO 30
MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 36-46. SOUTHWEST WINDS 15 TO 25 MPH
DECREASING TO 9 TO 16 MPH IN THE MORNING.
FRIDAY
CLEAR. HIGHS 66-76. LOWS 35-45. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 67-77. LOWS 35-45. SOUTHWEST WINDS 10 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 64-74. LOWS
36-46. SOUTHWEST WINDS 10 TO 20 MPH.
LABOR DAY THROUGH TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS. HIGHS 66-76. LOWS 36-46.
.8 TO 14 DAY OUTLOOK FOR (WED SEP 9 THROUGH TUE SEP 15)
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
=
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