238
FNUS55 KREV 210733
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1233 AM PDT WED OCT 21 2026
DISCUSSION
A PACIFIC STORM WILL BRING WIDESPREAD SIGNIFICANT RAIN (0.25"+), MOUNTAIN
SNOW, AND THUNDERSTORMS THROUGH THURSDAY. POCKETS OF HEAVY RAIN FROM
T-STORMS TODAY AND THURSDAY MAY LEAD TO PONDING, MUDDY ROADWAYS, AND MINOR
FLOODING IN POOR DRAINAGE AREAS OR RECENT BURN SCARS. INCREASED N/NW GUSTS
ACCOMPANY A COLD FRONTAL PASSAGE EARLY FRIDAY. COOL AND DRY WEATHER RETURNS
THIS WEEKEND INTO NEXT WEEK, WITH CHILLY NIGHTS AND GUSTY NE RIDGE WINDS.
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
NVZ420-220045-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..30%.
* CHC WETTING RAIN...35%.
* MAX TEMPERATURE....
* VALLEYS..........61-71.
* MID SLOPE........56-66.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........30-40%.
* MID SLOPE........42-52%.
* 24 HR TREND......20% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH. GUSTS TO 30 MPH IN THE
LATE MORNING AND AFTERNOON.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 3800-4800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....EAST 10 TO 20 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN LIKELY AFTER
MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........37-47.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........80-90%.
* MID SLOPE........71-81%.
* 24 HR TREND......15% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF RAIN IN THE MORNING, THEN SHOWERS
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...30%.
* MAX TEMPERATURE....
* VALLEYS..........54-62.
* MID SLOPE........48-58.
* MIN HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........56-66%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 8 TO 13 MPH
WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN. LOWS 28-38. WEST WINDS 9 TO 14 MPH
INCREASING TO 15 TO 25 MPH AFTER MIDNIGHT.
FRIDAY
CLEAR. HIGHS 52-62. LOWS 18-28. NORTH WINDS 10 TO 20 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. HIGHS 55-65. LOWS 18-28. SLOPE
WINDS.
MONDAY
CLEAR. HIGHS 57-67. LOWS 23-33.
TUESDAY
SUNNY. HIGHS 56-66.
NVZ421-220045-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW IN THE
MORNING. CHANCE OF THUNDERSTORMS.
* CHANCE OF THUNDER..30%.
* CHC WETTING RAIN...55%.
* MAX TEMPERATURE....
* VALLEYS..........55-65.
* MID SLOPE........48-58.
* 24 HR TREND......5 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........46-56%.
* MID SLOPE........46-56%.
* 24 HR TREND......24% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 7 TO 12 MPH
WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........EAST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS WITH POSSIBLE SNOW AND THUNDERSTORMS
IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MIN TEMPERATURE....
* VALLEYS..........24-34.
* MID SLOPE........38-48.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........81-91%.
* MID SLOPE........72-82%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH. GUSTS TO 20 MPH IN THE
EVENING.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......1300-1800 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF RAIN AND SNOW IN THE MORNING, THEN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...35%.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........42-52.
* MIN HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........52-62%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3900-4900 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN AND SNOW LIKELY. LOWS 21-31. SOUTHWEST WINDS
7 TO 12 MPH UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 50-60. LOWS 13-23. NORTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 54-64. LOWS 13-23. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 57-67. LOWS 19-29. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 57-67. LOWS 21-31.
CAZ272-220045-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...45%.
* MAX TEMPERATURE....
* VALLEYS..........54-60.
* MID SLOPE........48-58.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........53-63%.
* 24 HR TREND......30% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH. GUSTS TO 35 MPH.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 3100-4100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....EAST 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 LIKELY AND A CHANCE
OF SNOW AFTER MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MIN TEMPERATURE....
* VALLEYS..........27-37.
* MID SLOPE........31-41.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........94-100%.
* MID SLOPE........93-100%.
* 24 HR TREND......7% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......900-1400 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR.
THURSDAY
* SKY/WEATHER........CHANCE OF RAIN AND SNOW IN THE MORNING, THEN
SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...40%.
* MAX TEMPERATURE....
* VALLEYS..........45-51.
* MID SLOPE........39-49.
* MIN HUMIDITY.......
* VALLEYS..........70-80%.
* MID SLOPE........72-82%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH WITH
GUSTS TO 25 MPH IN THE AFTERNOON.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 2800-3800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN AND SNOW. LOWS 23-33. DOWNSLOPE 2 TO 5 MPH
BECOMING WEST 9 TO 16 MPH IN THE LATE EVENING AND OVERNIGHT.
FRIDAY
CLEAR. HIGHS 50-56. LOWS 13-23. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 52-60. LOWS 13-23. EAST WINDS 10 TO 15 MPH.
SUNDAY
CLEAR. HIGHS 54-62. LOWS 19-29. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 53-61. LOWS 21-31.
NVZ423-220045-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........68-76.
* MID SLOPE........64-74.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........27-37%.
* MID SLOPE........29-39%.
* 24 HR TREND......11% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 7 TO 12 MPH IN
THE AFTERNOON.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 4800-5800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....EAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN LIKELY AFTER
MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...45%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........40-50.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........77-87%.
* MID SLOPE........60-70%.
* 24 HR TREND......17% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....EAST WINDS 5 TO 10 MPH BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH. GUSTS TO 35 MPH
INCREASING TO 40 MPH IN THE MORNING.
* MIXING HEIGHT......1800-2800 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...40%.
* MAX TEMPERATURE....
* VALLEYS..........57-65.
* MID SLOPE........52-62.
* MIN HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........56-66%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH. GUSTS TO 35 MPH
UNTIL LATE AFTERNOON.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 2800-3800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN. LOWS 28-38. WEST WINDS 9 TO 15 MPH
INCREASING TO 13 TO 20 MPH IN THE MORNING.
FRIDAY
PARTLY CLOUDY. CHANCE OF RAIN. HIGHS 54-62. LOWS 19-29. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 56-62. LOWS 19-29. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 59-65. LOWS 19-29. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 60-66. LOWS 22-32.
TUESDAY
SUNNY. HIGHS 59-65.
NVZ429-220045-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
. CHANCE OF SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........62-72.
* MID SLOPE........59-69.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........33-43%.
* MID SLOPE........32-42%.
* 24 HR TREND......17% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 9 TO 14 MPH
WITH GUSTS TO 30 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO 35
MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 4200-5200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 20 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS. RAIN LIKELY AFTER MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...50%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........40-50.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........80-90%.
* MID SLOPE........70-80%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHEAST WINDS 8 TO 13 MPH WITH GUSTS TO 25 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 55 MPH.
* MIXING HEIGHT......1800-2800 FT AGL DECREASING TO 700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS. SHOWERS LIKELY IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...45%.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........49-59.
* MIN HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........53-63%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH. GUSTS TO 40 MPH.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 3400-4400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN LIKELY IN THE EVENING, THEN RAIN AFTER
MIDNIGHT. LOWS 31-41. WEST WINDS 9 TO 14 MPH INCREASING TO 12 TO
18 MPH IN THE MORNING.
FRIDAY
PARTLY CLOUDY. CHANCE OF RAIN. HIGHS 52-62. LOWS 21-31. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 53-63. LOWS 21-31. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 56-66. LOWS 21-31. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 58-68. LOWS 23-33.
CAZ270-278-NVZ458-220045-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........61-69.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........28-38%.
* MID SLOPE........29-39%.
* 24 HR TREND......13% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 9 TO 14
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 4700-5700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN LIKELY AFTER
MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...55%.
* MIN TEMPERATURE....
* VALLEYS..........32-42.
* MID SLOPE........38-48.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........80-90%.
* MID SLOPE........70-80%.
* 24 HR TREND......27% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....EAST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1900-2900 FT AGL DECREASING TO 700-1200 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....EAST 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF RAIN IN THE MORNING, THEN RAIN
LIKELY IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...45%.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........50-58.
* MIN HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........51-61%.
* 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.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 2700-3700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 23-33. WEST WINDS 9 TO 15 MPH INCREASING TO 19 TO
30 MPH AFTER MIDNIGHT.
FRIDAY
CLEAR. HIGHS 51-61. LOWS 14-24. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 53-63. LOWS 14-24. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 55-65. LOWS 19-29. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 55-65. LOWS 21-31.
TUESDAY
PARTLY CLOUDY. HIGHS 54-64.
CAZ271-220045-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...35%.
* MAX TEMPERATURE....
* VALLEYS..........60-70.
* MID SLOPE........58-66.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........36-46%.
* 24 HR TREND......17% WETTER.
* 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........EAST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 4400-5400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....EAST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN LIKELY AFTER
MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...60%.
* MIN TEMPERATURE....
* VALLEYS..........26-36.
* MID SLOPE........37-47.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........88-98%.
* MID SLOPE........84-94%.
* 24 HR TREND......18% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT. GUSTS TO 25 MPH.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 700-1200 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........CHANCE OF RAIN IN THE MORNING, THEN RAIN
LIKELY IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...45%.
* MAX TEMPERATURE....
* VALLEYS..........49-57.
* MID SLOPE........46-56.
* MIN HUMIDITY.......
* VALLEYS..........61-71%.
* MID SLOPE........61-71%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH. GUSTS TO 20 MPH IN
THE MORNING.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 2600-3600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
RAIN IN THE EVENING, THEN RAIN LIKELY AFTER
MIDNIGHT. LOWS 20-30. DOWNSLOPE 2 TO 5 MPH BECOMING WEST 9 TO 14 MPH
AFTER MIDNIGHT.
FRIDAY
CLEAR. HIGHS 51-61. LOWS 9-19. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 55-65. LOWS 9-19. EAST WINDS 10 TO 15 MPH.
SUNDAY
CLEAR. HIGHS 56-66. LOWS 14-24. SLOPE WINDS.
MONDAY
CLEAR. HIGHS 55-65. LOWS 17-27.
TUESDAY
PARTLY CLOUDY. HIGHS 55-65.
CAZ274-220045-
SOUTHERN MONO COUNTY-
1233 AM PDT WED OCT 21 2026
TODAY
* SKY/WEATHER........CHANCE OF SHOWERS AND A SLIGHT CHANCE OF SNOW
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
. SNOW SHOWERS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...45%.
* MAX TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........45-55.
* 24 HR TREND......4 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........57-67%.
* 24 HR TREND......22% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 8 TO 13
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 40
MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO
40 MPH IN THE AFTERNOON.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 2800-3800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH INCREASING TO 15 TO 25
MPH IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........SHOWERS WITH SNOW LIKELY IN THE EVENING.
SLIGHT CHANCE OF THUNDERSTORMS. RAIN AND SNOW
AFTER MIDNIGHT.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...70%.
* MIN TEMPERATURE....
* VALLEYS..........23-33.
* MID SLOPE........31-41.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........86-96%.
* MID SLOPE........77-87%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH
INCREASING TO 20 TO 35 MPH WITH GUSTS TO 55
MPH AFTER MIDNIGHT.
* MIXING HEIGHT......1400-1900 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........RAIN LIKELY AND A CHANCE OF SNOW IN THE
MORNING, THEN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...25%.
* MAX TEMPERATURE....
* VALLEYS..........45-55.
* MID SLOPE........41-50.
* MIN HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........55-65%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 3900-4900 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. LOWS
19-29. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 48-58. LOWS 15-25. NORTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 51-61. LOWS 15-25. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 55-65. LOWS 19-29. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 54-64. LOWS 21-31.
.8 TO 14 DAY OUTLOOK FOR (WED OCT 28 THROUGH MON NOV 2)
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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