754
FNUS55 KREV 220737
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1237 AM PDT THU OCT 22 2026
DISCUSSION
ADDITIONAL RAIN AND MOUNTAIN SNOW IS EXPECTED THROUGH FRIDAY MORNING,
WITH THUNDERSTORMS POSSIBLE THIS MORNING AND AFTERNOON. ROADS MAY
BECOME WET/MUDDY, OR COATED IN SMALL HAIL TODAY, WITH LOCALIZED FLOODING
POSSIBLE. A FRONTAL PASSAGE WILL DELIVER INCREASED N/NW WINDS OVERNIGHT,
BECOMING GUSTY E/NE RIDGE WINDS FRIDAY NIGHT. COOL AND DRY WEATHER
PREVAILS INTO NEXT WEEK, WITH COLD NIGHTTIME TEMPERATURES.
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
NVZ420-230015-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........SHOWERS LIKELY IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS. SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...50%.
* MAX TEMPERATURE....
* VALLEYS..........54-62.
* MID SLOPE........48-58.
* 24 HR TREND......8 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........53-63%.
* 24 HR TREND......13% WETTER.
* 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 15 MPH. GUSTS TO 20 MPH
LATE IN THE AFTERNOON.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 2600-3600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........RAIN IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...60%.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........34-43.
* 24 HR TREND......5 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........76-86%.
* MID SLOPE........65-75%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 16 MPH WITH GUSTS TO 30 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 45
MPH AFTER MIDNIGHT.
* RIDGE TOP........WEST WINDS 15 TO 25 MPH. GUSTS TO 30 MPH
INCREASING TO 45 MPH AFTER MIDNIGHT.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 800-1300 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH INCREASING TO 15 TO 25 MPH
AFTER MIDNIGHT.
* VENTILATION........GOOD.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING SUNNY. CHANCE OF
RAIN IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........51-61.
* MID SLOPE........47-57.
* MIN HUMIDITY.......
* VALLEYS..........20-30%.
* MID SLOPE........33-43%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 12 TO 20 MPH WITH GUSTS TO 35
MPH DECREASING TO 9 TO 16 MPH WITH GUSTS TO 25
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 16 MPH. GUSTS TO 40 MPH
DECREASING TO 25 MPH LATE IN THE AFTERNOON.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 3300-4300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 20 MPH.
* VENTILATION........GOOD.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 19-29. NORTH WINDS 7 TO 12 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 53-63. LOWS 19-29. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. HIGHS 59-69. LOWS 21-31. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 58-68. LOWS 24-34. SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 58-68. LOWS 24-34.
NVZ421-230015-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........CHANCE OF SHOWERS IN THE MORNING. SLIGHT
CHANCE OF THUNDERSTORMS. SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...40%.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........42-52.
* 24 HR TREND......6 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........47-57%.
* MID SLOPE........49-59%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 5 TO 10 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 30
MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...20%.
* MIN TEMPERATURE....
* VALLEYS..........21-31.
* MID SLOPE........34-44.
* 24 HR TREND......4 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........79-89%.
* MID SLOPE........67-77%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30
MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO
45 MPH IN THE MORNING.
* MIXING HEIGHT......1300-1800 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........FAIR.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........48-58.
* MID SLOPE........42-52.
* MIN HUMIDITY.......
* VALLEYS..........37-47%.
* MID SLOPE........38-48%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 2600-3600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 15-25. NORTH WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 52-62. LOWS 15-25. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 59-69. LOWS 18-28. SLOPE
WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 58-68. LOWS 21-31.
CAZ272-230015-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........SHOWERS LIKELY IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS. SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...50%.
* MAX TEMPERATURE....
* VALLEYS..........43-48.
* MID SLOPE........39-49.
* 24 HR TREND......9 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........67-77%.
* MID SLOPE........70-80%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH LATE
IN THE AFTERNOON. GUSTS TO 30 MPH LATE IN THE
AFTERNOON.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 2300-3300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........RAIN AND SNOW IN THE EVENING, THEN RAIN AND
SNOW LIKELY AFTER MIDNIGHT.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...45%.
* MIN TEMPERATURE....
* VALLEYS..........23-33.
* MID SLOPE........28-38.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........91-100%.
* MID SLOPE........83-93%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH. GUSTS TO 20 MPH
INCREASING TO 30 MPH IN THE LATE EVENING AND
OVERNIGHT.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30
MPH INCREASING TO 20 TO 35 MPH WITH GUSTS TO
50 MPH AFTER MIDNIGHT.
* MIXING HEIGHT......1100-1600 FT AGL.
* TRANSPORT WINDS....WEST 15 TO 25 MPH.
* VENTILATION........GOOD.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN AND SNOW IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........46-51.
* MID SLOPE........41-51.
* MIN HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........38-48%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 20 TO 30 MPH WITH GUSTS TO 40 MPH
SHIFTING TO THE NORTH 10 TO 20 MPH WITH GUSTS
TO 30 MPH IN THE LATE MORNING AND AFTERNOON.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 2900-3900 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 15-25. DOWNSLOPE 2 TO 5 MPH BECOMING
NORTHEAST 7 TO 12 MPH IN THE EVENING, THEN INCREASING TO EAST 12 TO
18 MPH AFTER MIDNIGHT DECREASING TO 9 TO 15 MPH IN THE MORNING.
SATURDAY
CLEAR. HIGHS 51-59. LOWS 15-25. SLOPE WINDS.
SUNDAY THROUGH MONDAY
PARTLY CLOUDY. HIGHS 55-64. LOWS 19-29.
SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 54-61. LOWS 22-32.
NVZ423-230015-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS. SHOWERS LIKELY IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........57-65.
* MID SLOPE........53-63.
* 24 HR TREND......11 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........49-59%.
* MID SLOPE........54-64%.
* 24 HR TREND......25% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 13
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 40
MPH.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 2400-3400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
RAIN.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...65%.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........36-46.
* 24 HR TREND......7 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........78-88%.
* MID SLOPE........61-71%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH INCREASING TO 15 TO
25 MPH WITH GUSTS TO 35 MPH AFTER MIDNIGHT.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1500-2000 FT AGL.
* TRANSPORT WINDS....WEST 10 TO 15 MPH INCREASING TO 15 TO 25 MPH
AFTER MIDNIGHT.
* VENTILATION........GOOD.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN AND SNOW IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...20%.
* MAX TEMPERATURE....
* VALLEYS..........54-62.
* MID SLOPE........48-58.
* MIN HUMIDITY.......
* VALLEYS..........29-39%.
* MID SLOPE........32-42%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 12 TO 18 MPH WITH GUSTS TO 30 MPH
SHIFTING TO THE NORTHWEST 9 TO 16 MPH WITH
GUSTS TO 25 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 40 MPH
DECREASING TO 25 MPH IN THE AFTERNOON.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 3600-4600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 20 MPH.
* VENTILATION........GOOD.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 18-28. NORTH WINDS 9 TO 14 MPH.
SATURDAY
CLEAR. HIGHS 55-61. LOWS 18-28. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 60-66. LOWS 19-29. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. HIGHS 61-67. LOWS 22-32. SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 60-66. LOWS 22-32.
NVZ429-230015-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........SHOWERS IN THE MORNING. CHANCE OF
THUNDERSTORMS.
* CHANCE OF THUNDER..30%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........54-64.
* MID SLOPE........50-60.
* 24 HR TREND......8 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........46-56%.
* MID SLOPE........47-57%.
* 24 HR TREND......10% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 7 TO 12 MPH IN
THE LATE MORNING AND AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 55 MPH
DECREASING TO 35 MPH IN THE AFTERNOON.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 3000-4000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN AFTER MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........36-46.
* 24 HR TREND......5 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........79-89%.
* MID SLOPE........68-78%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 16 MPH WITH GUSTS TO 35 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 40
MPH IN THE MORNING.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 800-1300 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........GOOD.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...25%.
* MAX TEMPERATURE....
* VALLEYS..........52-62.
* MID SLOPE........47-57.
* MIN HUMIDITY.......
* VALLEYS..........32-42%.
* MID SLOPE........37-47%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 16 MPH. GUSTS TO 30 MPH
UNTIL LATE AFTERNOON.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 45 MPH
DECREASING TO 30 MPH IN THE LATE MORNING AND
AFTERNOON.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 3700-4700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 21-31. NORTH WINDS 9 TO 15 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 52-62. LOWS 20-30. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 59-69. LOWS 20-30. SLOPE
WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 59-69. LOWS 24-34.
CAZ270-278-NVZ458-230015-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........CHANCE OF RAIN IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS. SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........51-59.
* 24 HR TREND......10 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........53-63%.
* 24 HR TREND......25% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 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.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 2100-3100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........RAIN IN THE EVENING, THEN CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...60%.
* MIN TEMPERATURE....
* VALLEYS..........24-34.
* MID SLOPE........32-42.
* 24 HR TREND......8 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........77-87%.
* MID SLOPE........67-77%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH
INCREASING TO NORTHWEST 19 TO 30 MPH WITH
GUSTS TO 45 MPH IN THE LATE EVENING AND
OVERNIGHT.
* RIDGE TOP........NORTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 50
MPH.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 1100-1600 FT
AGL AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........45-55.
* MIN HUMIDITY.......
* VALLEYS..........21-31%.
* MID SLOPE........25-35%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 18 MPH. GUSTS TO 30 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 45
MPH.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 3300-4300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 15 TO 25 MPH.
* VENTILATION........GOOD.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 15-25. NORTH WINDS 9 TO 14 MPH UNTIL
EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 53-63. LOWS 15-25. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. HIGHS 57-67. LOWS 19-29. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. HIGHS 56-66. LOWS 21-31. SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 55-65. LOWS 21-31.
CAZ271-230015-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........SLIGHT CHANCE OF RAIN IN THE MORNING, THEN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...50%.
* MAX TEMPERATURE....
* VALLEYS..........50-58.
* MID SLOPE........46-56.
* 24 HR TREND......11 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........63-73%.
* MID SLOPE........63-73%.
* 24 HR TREND......35% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 7 TO 12 MPH
WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 2200-3100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........RAIN IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...60%.
* MIN TEMPERATURE....
* VALLEYS..........21-31.
* MID SLOPE........31-41.
* 24 HR TREND......7 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........84-94%.
* MID SLOPE........76-86%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 15 MPH WITH GUSTS TO 40 MPH
DECREASING TO 5 TO 10 MPH WITH GUSTS TO 30 MPH
IN THE MORNING.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH. GUSTS TO 25 MPH
INCREASING TO 40 MPH AFTER MIDNIGHT.
* MIXING HEIGHT......1500-2000 FT AGL DECREASING TO 900-1400 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 15 TO 20 MPH.
* VENTILATION........FAIR.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING SUNNY. CHANCE OF
RAIN IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........48-58.
* MID SLOPE........45-55.
* MIN HUMIDITY.......
* VALLEYS..........26-36%.
* MID SLOPE........28-38%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 7 TO 12 MPH IN
THE LATE MORNING AND AFTERNOON. GUSTS TO 25
MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3300-4300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 12-22. DOWNSLOPE 2 TO 5 MPH BECOMING
EAST 7 TO 12 MPH AFTER MIDNIGHT.
SATURDAY
CLEAR. HIGHS 55-65. LOWS 12-22. EAST WINDS 10 TO 15 MPH.
SUNDAY THROUGH MONDAY
PARTLY CLOUDY. HIGHS 58-68. LOWS 14-24.
SLOPE WINDS.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 56-66. LOWS 17-27.
CAZ274-230015-
SOUTHERN MONO COUNTY-
1237 AM PDT THU OCT 22 2026
TODAY
* SKY/WEATHER........CHANCE OF SNOW IN THE MORNING. SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...40%.
* MAX TEMPERATURE....
* VALLEYS..........45-55.
* MID SLOPE........40-50.
* 24 HR TREND......5 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........54-64%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH. GUSTS TO 40 MPH UNTIL
LATE AFTERNOON.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN AND SNOW IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........17-27.
* MID SLOPE........26-36.
* 24 HR TREND......6 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........83-93%.
* MID SLOPE........71-81%.
* 24 HR TREND......5% DRIER.
* 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........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1400-1900 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........FAIR.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........46-56.
* MID SLOPE........41-51.
* MIN HUMIDITY.......
* VALLEYS..........39-49%.
* MID SLOPE........47-57%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 7 TO 12 MPH
WITH GUSTS TO 25 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH. GUSTS TO 30 MPH IN
THE MORNING.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 2700-3700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
15-25. NORTH WINDS 9 TO 14 MPH IN THE EVENING BECOMING DOWNSLOPE
2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 50-60. LOWS 15-25. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 56-66. LOWS 17-27. SLOPE
WINDS.
TUESDAY
CLEAR. HIGHS 56-66. LOWS 21-31.
WEDNESDAY
PARTLY CLOUDY. HIGHS 54-64.
.8 TO 14 DAY OUTLOOK FOR (THU OCT 29 THROUGH TUE NOV 3)
BELOW NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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