400
FNUS55 KREV 031936
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1236 PM PDT WED SEP 3 2025
DISCUSSION
SHOWER AND THUNDERSTORM WILL DECREASE TODAY THROUGH FRIDAY IN THE
SIERRA AND ADJACENT FOOTHILLS. THESE STORMS STILL HAVE THE
CAPABILITY OF DRY LIGHTNING OUTSIDE THE RAIN CORES ALONG WITH GUSTY
WINDS AND LOCALLY HEAVY RAIN. DIURNAL, TERRAIN DRIVEN WINDS
FORECASTED WITH BREEZY AFTERNOON WINDS OUTSIDE OF ANY GUSTY WINDS
FROM THUNDERSTORMS. DRIER, COOLER, AND BREEZIER SOUTHWEST FLOW
DEVELOPS OVER THE WEEKEND, WITH SOME FIRE CONCERNS OVER ELEVATED
TERRAIN DUE TO WINDS. SHOWERS AND STORMS MAY RETURN MID NEXT WEEK
BUT EXPECTED TO BE WET AT THIS STAGE.
NVZ420-041415-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........52-62.
* MID SLOPE........54-64.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........63-73%.
* MID SLOPE........48-58%.
* 24 HR TREND......4% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH UNTIL EARLY MORNING
BECOMING LIGHT.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3900-4900 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........SUNNY. PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-90.
* MID SLOPE........77-87.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........20-30%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1600-2100 FT AGL INCREASING TO 6800-7800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........51-61.
* MID SLOPE........54-64.
* MAX HUMIDITY.......
* VALLEYS..........58-68%.
* MID SLOPE........45-55%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT
CHANCE OF SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........80-90.
* MID SLOPE........77-87.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 6500-7500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. LOWS 46-56. WEST WINDS 8 TO 13 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 75-85. LOWS 43-53. WEST
WINDS 10 TO 15 MPH.
MONDAY
PARTLY CLOUDY. HIGHS 70-80. LOWS 43-53. WEST WINDS 10 TO
15 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
64-74. LOWS 40-50.
NVZ421-041415-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........53-63.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........47-57%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHEAST 10 TO 15 MPH IN
THE LATE EVENING AND EARLY MORNING, THEN
BECOMING LIGHT LATE IN THE NIGHT.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3400-4400 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING. AREAS OF
SMOKE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..10%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* 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...10%.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 7200-8200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. PATCHY
SMOKE.
* CHANCE OF THUNDER..10%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........55-65.
* MAX HUMIDITY.......
* VALLEYS..........65-75%.
* MID SLOPE........45-55%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* 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.
FRIDAY
* SKY/WEATHER........SUNNY THEN BECOMING MOSTLY CLOUDY. PATCHY
SMOKE IN THE MORNING. CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........70-80.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........20-30%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 7700-8700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. LOWS 38-48. WEST WINDS 5 TO 10 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 73-83. LOWS 33-43. SOUTHWEST
WINDS 10 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS. HIGHS 65-75. LOWS 31-41.
CAZ272-041415-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........47-57.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........81-91%.
* MID SLOPE........55-65%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......2700-3700 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........68-78.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........32-42%.
* MID SLOPE........30-40%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE LATE MORNING AND AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 5800-6800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........47-57.
* MAX HUMIDITY.......
* VALLEYS..........79-89%.
* MID SLOPE........50-60%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE MORNING.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......2200-3200 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING. SLIGHT
CHANCE OF SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........23-33%.
* MID SLOPE........23-33%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 5100-6100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE EVENING. LOWS
40-50. DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 63-73. LOWS 34-44. SLOPE
WINDS.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 56-66.
LOWS 32-42.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 54-64.
NVZ423-041415-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..20%.
* MIN TEMPERATURE....
* VALLEYS..........57-66.
* MID SLOPE........59-66.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........42-52%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH
SHIFTING TO THE EAST WITH GUSTS TO 25 MPH IN
THE LATE EVENING AND OVERNIGHT.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........86-92.
* MID SLOPE........81-91.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........17-23%.
* MID SLOPE........18-24%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 8100-9100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........57-66.
* MID SLOPE........60-67.
* MAX HUMIDITY.......
* VALLEYS..........46-56%.
* MID SLOPE........37-47%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......4500-5500 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* MAX TEMPERATURE....
* VALLEYS..........88-94.
* MID SLOPE........82-92.
* MIN HUMIDITY.......
* VALLEYS..........16-21%.
* MID SLOPE........17-22%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 6900-7900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. CHANCE OF SHOWERS. LOWS 54-63. DOWNSLOPE 2 TO 5 MPH
BECOMING SOUTHWEST 7 TO 12 MPH IN THE LATE EVENING AND EARLY
MORNING, THEN BECOMING DOWNSLOPE 2 TO 5 MPH IN THE MORNING.
SATURDAY
PARTLY CLOUDY. HIGHS 84-90. LOWS 51-61. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 81-87. LOWS 49-59. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. HIGHS 78-84. LOWS 47-57. SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS. HIGHS 71-79. LOWS 45-55.
NVZ429-041415-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..10%.
* MIN TEMPERATURE....
* VALLEYS..........55-65.
* MID SLOPE........56-66.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........57-67%.
* MID SLOPE........45-55%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3800-4800 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........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........83-93.
* MID SLOPE........78-88.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........17-26%.
* MID SLOPE........18-26%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 7800-8800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........57-67.
* MID SLOPE........58-68.
* MAX HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........40-50%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......4300-5300 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY THEN BECOMING MOSTLY CLOUDY. PATCHY
SMOKE IN THE MORNING. CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* MAX TEMPERATURE....
* VALLEYS..........84-94.
* MID SLOPE........79-89.
* MIN HUMIDITY.......
* VALLEYS..........15-25%.
* MID SLOPE........18-28%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 6900-7900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS. LOWS
51-61. SOUTHWEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING BECOMING
DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 80-90. LOWS 49-59. SLOPE
WINDS.
MONDAY
CLEAR. HIGHS 76-86. LOWS 47-57. WEST WINDS 10 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. HIGHS 71-81. LOWS 45-55.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 70-80.
CAZ270-278-NVZ458-041415-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..10%.
* MIN TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........52-62.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........60-70%.
* MID SLOPE........49-59%.
* 24 HR TREND......13% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3500-4500 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....EAST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..10%.
* MAX TEMPERATURE....
* VALLEYS..........82-92.
* MID SLOPE........79-87.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........20-26%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH IN THE
AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1600-2100 FT AGL INCREASING TO 8300-9300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........48-58.
* MID SLOPE........52-62.
* MAX HUMIDITY.......
* VALLEYS..........59-69%.
* MID SLOPE........48-58%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......4300-5300 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* MAX TEMPERATURE....
* VALLEYS..........82-92.
* MID SLOPE........79-87.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........16-24%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 5 TO 10
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 6800-7800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH IN THE
AFTERNOON.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 43-53. WEST
WINDS 9 TO 14 MPH UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 77-87. LOWS 41-51. WEST WINDS 10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. HIGHS 75-85. LOWS 40-50. WEST WINDS 10 TO
15 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 71-81. LOWS
39-49. SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
64-74. LOWS 38-48.
CAZ271-041415-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..20%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........50-60.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........72-82%.
* MID SLOPE........54-64%.
* 24 HR TREND......7% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3200-4200 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........79-89.
* MID SLOPE........77-85.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........23-33%.
* MID SLOPE........23-33%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1600-2100 FT AGL INCREASING TO 8300-9300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........51-61.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........51-61%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS. GUSTS TO 20 MPH IN THE EVENING.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........75-85.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 5 TO 10
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 6700-7700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH IN THE
AFTERNOON.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 35-45. WEST WINDS 8 TO 13 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 72-82. LOWS 33-43. SOUTHWEST WINDS 10 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. HIGHS 70-80. LOWS 32-42. SOUTHWEST WINDS
10 TO 15 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 66-76. LOWS
32-42. SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
61-71. LOWS 31-41.
CAZ274-041415-
SOUTHERN MONO COUNTY-
1236 PM PDT WED SEP 3 2025
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........44-54.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........77-87%.
* MID SLOPE........56-66%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING. AREAS OF
SMOKE IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..10%.
* MAX TEMPERATURE....
* VALLEYS..........72-82.
* MID SLOPE........69-79.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........20-30%.
* MID SLOPE........23-33%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 6100-7100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........45-55.
* MAX HUMIDITY.......
* VALLEYS..........70-80%.
* MID SLOPE........51-61%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......2900-3900 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY THEN BECOMING MOSTLY CLOUDY. PATCHY
SMOKE IN THE MORNING. CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* MAX TEMPERATURE....
* VALLEYS..........72-82.
* MID SLOPE........69-79.
* MIN HUMIDITY.......
* VALLEYS..........20-30%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 6700-7700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. LOWS 37-47. WEST WINDS 5 TO 10 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 69-79. LOWS 33-43. SOUTHWEST
WINDS 10 TO 15 MPH.
TUESDAY
CLEAR. HIGHS 63-73. LOWS 31-41.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 61-71.
.8 TO 14 DAY OUTLOOK FOR (THU SEP 11 THROUGH WED SEP 17)
NEAR NORMAL TEMPERATURES AND PRECIPITATION.
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