785
FNUS55 KREV 171015
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
315 AM PDT WED SEP 17 2025
DISCUSSION
HIGH PRESSURE WILL MAINTAIN WARM AND DRY WEATHER TODAY WITH LIGHT
AFTERNOON BREEZES. POOR OVERNIGHT RECOVERIES WILL CONTINUE ACROSS
VALLEY AND MIDSLOPE AREAS THROUGH THURSDAY MORNING. INCREASING
MOISTURE WILL SUPPORT SHOWERS AND THUNDERSTORMS THURSDAY THROUGH THE
WEEKEND. STORMS WILL TREND ON THE WETTER SIDE AND WILL LIKELY PRODUCE
WETTING RAINFALL FOR SOME AREAS ALONG THE EASTERN SIERRA AND WESTERN
NEVADA.
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
NVZ420-180015-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........77-87.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........9-19%.
* MID SLOPE........12-18%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 5600-6600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........52-62.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........34-44%.
* MID SLOPE........22-32%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........75-85.
* MIN HUMIDITY.......
* VALLEYS..........9-19%.
* MID SLOPE........11-18%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 4100-5100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 50-60.
DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 72-80. LOWS 46-56. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 73-83.
LOWS 46-56. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 74-84. LOWS 46-56. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 77-87. LOWS
47-57.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 75-85.
NVZ421-180015-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........71-81.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........11-21%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 9 TO 14
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH IN THE MORNING
BECOMING LIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 7100-8100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........52-62.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........33-43%.
* MID SLOPE........22-32%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHEAST WINDS 8 TO 13 MPH IN THE EVENING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN
THE LATE EVENING AND OVERNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4000-5000 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........75-85.
* MID SLOPE........68-78.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH
INCREASING TO 35 MPH LATE IN THE AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 4800-5800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. CHANCE OF SHOWERS. LOWS 40-50. SOUTH WINDS
9 TO 14 MPH UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 69-79. LOWS 37-47. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 72-82.
LOWS 37-47. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 74-84. LOWS 38-48. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 76-86. LOWS
40-50.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 74-84.
CAZ272-180015-
GREATER LAKE TAHOE AND TRUCKEE AREA-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........73-83.
* MID SLOPE........70-80.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........18-28%.
* 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......1100-1600 FT AGL INCREASING TO 6000-7000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........46-56.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........49-59%.
* MID SLOPE........28-38%.
* 24 HR TREND......11% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING EAST 10 TO 15 MPH AFTER
MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3300-4300 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........68-78.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........16-26%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 4300-5300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. CHANCE OF SHOWERS. LOWS 41-51. DOWNSLOPE
2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 61-66. LOWS 40-50. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 65-75.
LOWS 39-49. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 67-77. LOWS 39-49. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 69-79. LOWS
40-50.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 64-74.
NVZ423-180015-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........84-90.
* MID SLOPE........78-88.
* 24 HR TREND......4 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........8-14%.
* MID SLOPE........9-14%.
* 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......800-1300 FT AGL INCREASING TO 5500-6500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........47-57.
* MID SLOPE........52-62.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........23-33%.
* MID SLOPE........15-25%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHEAST WINDS 7 TO 12 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3500-4500 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........85-91.
* MID SLOPE........80-90.
* MIN HUMIDITY.......
* VALLEYS..........8-13%.
* MID SLOPE........10-15%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 3900-4900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. LOWS 55-65. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 76-84. LOWS
50-60. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 80-86. LOWS 50-59. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 82-88. LOWS 50-59. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 83-91. LOWS 50-60.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 82-90.
NVZ429-180015-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........82-92.
* MID SLOPE........77-87.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........8-14%.
* MID SLOPE........9-15%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 8 TO 13 MPH IN
THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 6300-7300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........53-63.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........23-33%.
* MID SLOPE........17-27%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-90.
* MID SLOPE........76-86.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........9-19%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 5 TO 10 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH SHIFTING TO THE WEST WITH GUSTS TO 30 MPH
LATE IN THE AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 4400-5400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 54-64.
SOUTH WINDS 9 TO 14 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 74-80. LOWS
49-59. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 77-87. LOWS 49-59. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 79-89. LOWS 50-60. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 81-91. LOWS 51-61.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 80-90.
CAZ270-278-NVZ458-180015-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-90.
* MID SLOPE........77-85.
* 24 HR TREND......4 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........10-16%.
* MID SLOPE........12-17%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 6200-7200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........49-59.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........32-42%.
* MID SLOPE........23-33%.
* 24 HR TREND......4% 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 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........81-91.
* MID SLOPE........77-85.
* MIN HUMIDITY.......
* VALLEYS..........9-16%.
* MID SLOPE........11-16%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 7 TO 12
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 4400-5400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 48-58. EAST WINDS 7 TO 12 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 74-82. LOWS
43-53. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 75-85. LOWS 42-52. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 76-86. LOWS 42-52. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 80-90. LOWS 44-54.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 75-85.
CAZ271-180015-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........79-89.
* MID SLOPE........77-85.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........13-21%.
* MID SLOPE........13-21%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH BECOMING LIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 6700-7700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........48-58.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........43-53%.
* MID SLOPE........30-40%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3800-4800 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........76-84.
* MIN HUMIDITY.......
* VALLEYS..........12-20%.
* MID SLOPE........12-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 5000-6000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS 41-51. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
70-80. LOWS 37-47. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 71-81.
LOWS 37-47. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 74-84. LOWS 37-47. SLOPE WINDS.
MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 77-87. LOWS 39-49.
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
70-80.
CAZ274-180015-
SOUTHERN MONO COUNTY-
315 AM PDT WED SEP 17 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-84.
* MID SLOPE........70-80.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........13-23%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 7 TO 12 MPH IN
THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1500-2500 FT AGL INCREASING TO 7100-8100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........43-53.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........42-52%.
* MID SLOPE........28-38%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....EAST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4500-5500 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........68-78.
* MID SLOPE........65-75.
* MIN HUMIDITY.......
* VALLEYS..........18-28%.
* MID SLOPE........19-29%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 7 TO 12
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 30
MPH.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 4000-5000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLOUDY. CHANCE OF SHOWERS. LOWS 39-49. SOUTHEAST
WINDS 8 TO 13 MPH IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 66-76. LOWS 37-47. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 67-77.
LOWS 37-47. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 70-80. LOWS 38-48. SLOPE WINDS.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
69-79. LOWS 39-49.
.8 TO 14 DAY OUTLOOK FOR (WED SEP 24 THROUGH TUE SEP 30)
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
=
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