876
FNUS55 KREV 081209
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
509 AM PDT WED OCT 8 2025
...ELEVATED TO NEAR CRITICAL CONDITIONS OVER MINERAL AND MONO
COUNTIES ON THURSDAY AFTERNOON...
DISCUSSION
DRY CONDITIONS WITH SEASONAL TO SLIGHTLY ABOVE NORMAL TEMPERATURES
AND GOOD OVERNIGHT RECOVERIES CONTINUE THROUGH TOMORROW. WINDS
INCREASE OVER THE NEXT TWO DAYS RESULTING IN ELEVATED TO CRITICAL
CONDITIONS BY THURSDAY AFTERNOON FOR MINERAL AND MONO COUNTIES DUE
TO GUSTY WINDS AND LOW HUMIDITY. THEN, ANOTHER STORM SYSTEM BRINGS
MORE GUSTY WINDS, COOLER TEMPERATURES AND RAIN AND MOUNTAIN SNOW ON
FRIDAY INTO SATURDAY.
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
NVZ420-090330-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-79.
* MID SLOPE........66-76.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........17-26%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 9 TO 14
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 7000-8000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH 15 TO 25 MPH IN THE
AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........37-47.
* MID SLOPE........41-49.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........60-70%.
* MID SLOPE........38-48%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH. GUSTS TO 25 MPH IN
THE EVENING.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 35 MPH
INCREASING TO 40 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3200-4200 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........68-78.
* MID SLOPE........64-74.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 8 TO 13 MPH
WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 3700-4700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 38-48. SOUTHWEST WINDS 9 TO 14 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 64-74. LOWS 32-42.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 52-62. LOWS 26-36. WEST
WINDS 8 TO 13 MPH.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 48-58. LOWS 29-39.
NVZ421-090330-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........68-78.
* MID SLOPE........61-71.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........13-23%.
* 24 HR TREND......11% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 6200-7200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........40-50.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........37-47%.
* MID SLOPE........25-35%.
* 24 HR TREND......19% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 50 MPH
INCREASING TO 25 TO 35 MPH WITH GUSTS TO 60
MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........68-78.
* MID SLOPE........61-71.
* MIN HUMIDITY.......
* VALLEYS..........9-18%.
* MID SLOPE........9-19%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH
INCREASING TO 12 TO 18 MPH WITH GUSTS TO 40
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 25 TO 35 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 4600-5600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO 30 TO 40 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. SOUTH WINDS 9 TO 17 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 65-75. LOWS 27-37.
SOUTHWEST WINDS 10 TO 20 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 54-64. LOWS 21-31. SOUTHWEST
WINDS 8 TO 13 MPH.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 48-58. LOWS 22-32.
CAZ272-090330-
GREATER LAKE TAHOE AND TRUCKEE AREA-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........61-69.
* MID SLOPE........57-67.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........24-34%.
* MID SLOPE........25-35%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 13
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 6000-7000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO SOUTH 20
TO 25 MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........35-45.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........52-62%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH WITH GUSTS TO 65
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2300-3300 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH DECREASING TO 10 TO 15 MPH
AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........59-66.
* MID SLOPE........54-64.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 13
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 60
MPH INCREASING TO 20 TO 35 MPH WITH GUSTS TO
60 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 3300-4300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 33-43. SOUTHWEST WINDS 8 TO 13 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 54-61. LOWS 25-35.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. HIGHS 45-53. LOWS
21-31. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 50-58. LOWS 21-31. SLOPE WINDS.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 40-49. LOWS 22-32.
NVZ423-090330-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........72-78.
* MID SLOPE........67-77.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........16-24%.
* MID SLOPE........18-24%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 8 TO 13 MPH
WITH GUSTS TO 20 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 5200-6200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........42-51.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........30-40%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 35
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3000-4000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........72-80.
* MID SLOPE........68-78.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........15-23%.
* 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........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 2800-3800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 37-47. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. HIGHS 69-77. LOWS 35-45.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 56-62. LOWS 28-38. WEST WINDS 10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. HIGHS 54-60. LOWS 28-38. SLOPE WINDS.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 53-59. LOWS 32-41.
NVZ429-090330-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........66-76.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........14-22%.
* 24 HR TREND......8% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 7 TO 12 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 5900-6900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH 15 TO 25 MPH IN THE
AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........43-53.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........47-57%.
* MID SLOPE........25-35%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 7 TO 12 MPH WITH GUSTS TO 25 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3000-4000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........72-82.
* MID SLOPE........68-78.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........11-19%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH. GUSTS TO 25 MPH
INCREASING TO 35 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 55
MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 3800-4800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH SHIFTING TO THE SOUTH
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 38-48. SOUTH WINDS 9 TO 14 MPH.
FRIDAY
CLEAR. HIGHS 71-81. LOWS 36-46. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 55-65. LOWS 30-40. NORTHWEST WINDS 10 TO
15 MPH.
SUNDAY
CLEAR. HIGHS 56-64. LOWS 30-40. SLOPE WINDS.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 52-62. LOWS 33-42.
CAZ270-278-NVZ458-090330-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........68-78.
* MID SLOPE........64-72.
* 24 HR TREND......4 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........18-26%.
* MID SLOPE........20-26%.
* 24 HR TREND......LITTLE CHANGE.
* 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 30
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 7000-8000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........37-47.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........56-66%.
* 24 HR TREND......9% 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 40
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3900-4900 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........64-74.
* MID SLOPE........61-69.
* MIN HUMIDITY.......
* VALLEYS..........20-30%.
* MID SLOPE........23-31%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH WITH GUSTS TO 30 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 4100-5100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 35-45. SOUTHWEST WINDS 10 TO 17 MPH DECREASING TO 7 TO 12 MPH
IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 59-69. LOWS 29-39.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 49-59.
LOWS 22-32. WEST WINDS 10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. HIGHS 49-59.
LOWS 22-32. SLOPE WINDS.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 46-56. LOWS
25-35.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. HIGHS 46-56.
CAZ271-090330-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........65-75.
* MID SLOPE........63-71.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........21-31%.
* MID SLOPE........21-31%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 9 TO 16
MPH WITH GUSTS TO 30 MPH IN THE LATE MORNING
AND AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1300-1800 FT AGL INCREASING TO 7900-8900 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........36-46.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........80-90%.
* MID SLOPE........69-79%.
* 24 HR TREND......20% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 15 MPH SHIFTING TO THE
SOUTH 5 TO 10 MPH IN THE MORNING. GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS TO 30 MPH
INCREASING TO 50 MPH IN THE LATE EVENING AND
OVERNIGHT.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH DECREASING TO 10 TO 15 MPH
AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........59-69.
* MID SLOPE........56-66.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........25-35%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 15 MPH. GUSTS TO 30 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 4100-5100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 30-40. SOUTH WINDS 9 TO 14 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 53-63. LOWS 24-34.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 47-57.
LOWS 19-29. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. HIGHS 49-59. LOWS 19-29. SLOPE WINDS.
COLUMBUS DAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS.
HIGHS 43-53. LOWS 22-32.
CAZ274-090330-
SOUTHERN MONO COUNTY-
509 AM PDT WED OCT 8 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........60-70.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........13-21%.
* MID SLOPE........14-22%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 9 TO 16 MPH
WITH GUSTS TO 30 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 30 MPH
INCREASING TO 35 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 4300-5300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........34-44.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........32-42%.
* MID SLOPE........25-35%.
* 24 HR TREND......30% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 15 MPH WITH GUSTS TO 30 MPH.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH INCREASING TO 25 TO 35
MPH AFTER MIDNIGHT. GUSTS TO 45 MPH INCREASING
TO 60 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2300-3300 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........64-74.
* MID SLOPE........60-70.
* MIN HUMIDITY.......
* VALLEYS..........9-15%.
* MID SLOPE........9-17%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH WITH GUSTS TO 30 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 40
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 25 TO 40 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3800-4800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO 30 TO 40 MPH
IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. SOUTH WINDS 15 TO 25 MPH
DECREASING TO 9 TO 16 MPH IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
CLEAR. HIGHS 61-71. LOWS 28-38. SOUTH WINDS 10 TO 20 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 53-63. LOWS 21-31. SOUTHWEST
WINDS 8 TO 13 MPH.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 48-58. LOWS
22-32.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 42-52.
.8 TO 14 DAY OUTLOOK FOR (WED OCT 15 THROUGH TUE OCT 21)
BELOW NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
=
HTTP://WEATHER.GOV/RENO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page