306
FNUS55 KREV 152020
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
120 PM PDT MON SEP 15 2025
DISCUSSION
WARMING AND DRYING CONDITIONS ARE EXPECTED THROUGH MIDWEEK WITH
MAINLY LIGHT WINDS. POOR RH RECOVERIES RETURN ESPECIALLY FOR
MIDSLOPE AREAS TUESDAY AND WEDNESDAY NIGHTS. OTHERWISE LOOK FOR
INCREASING CHANCES OF SHOWERS WITH ISOLATED THUNDERSTORMS POSSIBLE
BY THURSDAY INTO NEXT WEEKEND.
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
NVZ420-161415-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........47-56.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........43-53%.
* MID SLOPE........32-42%.
* 24 HR TREND......12% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........75-85.
* MID SLOPE........74-84.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........14-20%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 4100-5100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........46-56.
* MID SLOPE........50-60.
* MAX HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........27-37%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........76-86.
* MIN HUMIDITY.......
* VALLEYS..........9-19%.
* MID SLOPE........12-18%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 4300-5300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 48-58. NORTHEAST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 77-87.
LOWS 48-58. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 72-82. LOWS
47-57. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 72-82.
LOWS 46-56. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 74-84. LOWS 46-56.
NVZ421-161415-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........49-59.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........33-43%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH AFTER
MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3300-4300 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........75-85.
* MID SLOPE........70-80.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........14-24%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHEAST 10 TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1300-1800 FT AGL INCREASING TO 5500-6500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........50-60.
* MAX HUMIDITY.......
* VALLEYS..........41-51%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3300-4300 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........71-81.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........11-21%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 8 TO 13
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 5600-6600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 41-51. NORTHEAST WINDS 9 TO
14 MPH IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 75-85. LOWS
41-51. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 70-80. LOWS 37-47.
SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 71-81.
LOWS 37-47. SLOPE WINDS.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS
73-83. LOWS 37-47.
CAZ272-161415-
GREATER LAKE TAHOE AND TRUCKEE AREA-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........42-52.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........62-72%.
* MID SLOPE........38-48%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHEAST 10 TO 15 MPH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........68-78.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........19-29%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 4700-5700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........46-56.
* MAX HUMIDITY.......
* VALLEYS..........59-69%.
* MID SLOPE........35-45%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2700-3700 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........72-82.
* MID SLOPE........69-79.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 4700-5700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 41-51. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 69-79.
LOWS 41-51. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 65-75. LOWS 39-49. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 64-74. LOWS
39-49. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 66-76. LOWS 39-49.
NVZ423-161415-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........46-56.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........24-34%.
* 24 HR TREND......16% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-86.
* MID SLOPE........74-84.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........9-15%.
* MID SLOPE........11-16%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHEAST WINDS 7 TO 12 MPH UNTIL LATE AFTERNOON
BECOMING UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 4200-5200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........GOOD.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........49-59.
* MAX HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH BECOMING NORTHEAST 7 TO 12
MPH IN THE LATE EVENING AND OVERNIGHT.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2600-3600 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........85-91.
* MID SLOPE........79-89.
* MIN HUMIDITY.......
* VALLEYS..........8-13%.
* MID SLOPE........8-13%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 4000-5000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 46-56. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
PARTLY CLOUDY. HIGHS 84-90. LOWS 46-56. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 80-86. LOWS
51-61. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 80-86. LOWS 50-60. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 80-86. LOWS 49-59.
NVZ429-161415-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........46-56.
* MID SLOPE........50-60.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........36-46%.
* MID SLOPE........29-39%.
* 24 HR TREND......10% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2900-3900 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........79-89.
* MID SLOPE........75-85.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-18%.
* MID SLOPE........11-19%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 7 TO 12 MPH IN
THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 4800-5800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........47-57.
* MID SLOPE........51-61.
* MAX HUMIDITY.......
* VALLEYS..........26-36%.
* MID SLOPE........19-29%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2900-3900 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........82-92.
* MID SLOPE........78-88.
* MIN HUMIDITY.......
* VALLEYS..........8-14%.
* MID SLOPE........8-16%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 5 TO 10 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH UNTIL LATE AFTERNOON
BECOMING LIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 4500-5500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 47-57. NORTH WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 80-90.
LOWS 47-57. SOUTHEAST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
76-86. LOWS 50-60. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 76-86. LOWS 50-60. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 77-87. LOWS 49-59.
CAZ270-278-NVZ458-161415-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........37-47.
* MID SLOPE........43-53.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........42-52%.
* MID SLOPE........31-41%.
* 24 HR TREND......24% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING EAST 10 TO 15 MPH IN THE
LATE EVENING AND OVERNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2500-3500 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........73-81.
* 24 HR TREND......4 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........11-18%.
* MID SLOPE........13-18%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 7 TO 12
MPH WITH GUSTS TO 20 MPH IN THE LATE MORNING
AND AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 4300-5300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........46-56.
* MAX HUMIDITY.......
* VALLEYS..........36-46%.
* MID SLOPE........24-34%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........81-91.
* MID SLOPE........78-86.
* MIN HUMIDITY.......
* VALLEYS..........9-16%.
* MID SLOPE........11-16%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 4700-5700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 43-53. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
PARTLY CLOUDY. HIGHS 80-90. LOWS 43-53. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 75-85. LOWS
44-54. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 74-84.
LOWS 43-53. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 76-86. LOWS 42-52.
CAZ271-161415-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........43-53.
* 24 HR TREND......5 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........53-63%.
* MID SLOPE........36-46%.
* 24 HR TREND......22% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHEAST 10 TO 15 MPH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3000-4000 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........74-82.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........15-23%.
* MID SLOPE........16-22%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 7 TO 12 MPH
WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 5300-6300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........46-56.
* MAX HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........36-46%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH AFTER
MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3300-4300 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-90.
* MID SLOPE........77-85.
* MIN HUMIDITY.......
* VALLEYS..........13-21%.
* MID SLOPE........14-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 5400-6400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 39-49. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. HIGHS 78-88. LOWS 39-49. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 70-80. LOWS
39-49. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
70-80. LOWS 38-48. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 73-83. LOWS 37-47.
CAZ274-161415-
SOUTHERN MONO COUNTY-
120 PM PDT MON SEP 15 2025
TONIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........40-50.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........38-48%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3900-4900 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
TUESDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........73-83.
* MID SLOPE........69-79.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........15-25%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1600-2100 FT AGL INCREASING TO 5500-6500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TUESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........41-51.
* MAX HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........33-43%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3900-4900 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-84.
* MID SLOPE........69-79.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH SHIFTING TO THE EAST IN
THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 5800-6800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 41-51. EAST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 69-79. LOWS
39-49. SLOPE WINDS.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 64-74. LOWS 37-47. SLOPE WINDS.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 67-77. LOWS
37-47. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 68-78. LOWS 37-47.
.8 TO 14 DAY OUTLOOK FOR (TUE SEP 23 THROUGH MON SEP 29)
NEAR NORMAL TEMPERATURES AND PRECIPITATION.
=
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