855
FNUS55 KREV 221006
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
206 AM PST MON DEC 22 2025
DISCUSSION
AREAS OF LOCALLY HEAVY RAIN FROM THE TAHOE BASIN INTO NORTHEAST
CA WILL LEAD TO LOCALIZED FLOODING TODAY. HEAVY SNOW IS ALSO LIKELY
ABOVE 8,000 FEET INTO THE EARLY EVENING, MOSTLY FROM NORTHERN MONO
COUNTY INTO THE TAHOE BASIN. WINDS ARE LIGHTER TODAY, BUT WILL BE
BREEZY ON THE RIDGETOPS. ADDITIONAL STORMS ARE THEN EXPECTED LATE
TUESDAY THROUGH AFTER CHRISTMAS DAY, WITH THE POSSIBILITY OF MULTIPLE
FEET OF SNOW, STRONG WINDS, AND HEAVY RAIN.
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
NVZ420-230030-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........CHANCE OF RAIN IN THE MORNING, THEN RAIN
LIKELY IN THE AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........45-55.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........44-54%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH. GUSTS TO 30 MPH UNTIL
LATE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 60
MPH.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 1600-2600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........35-42.
* 24 HR TREND......5 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........43-53%.
* 24 HR TREND......8% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 50 MPH.
* CHC WETTING RAIN...15%.
* MIXING HEIGHT......900-1400 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........54-62.
* MID SLOPE........49-59.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........29-39%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 15 MPH. GUSTS TO 25 MPH LATE IN
THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 55 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1700-2200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 15 TO 25 MPH
IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
TUESDAY NIGHT
CHANCE OF RAIN IN THE EVENING, THEN RAIN AFTER
MIDNIGHT. LOWS 33-43. SOUTH WINDS 9 TO 17 MPH.
WEDNESDAY
RAIN AND SNOW. HIGHS 44-52. LOWS 27-37. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW AND RAIN. HIGHS 41-49. LOWS 24-34. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
SNOW AND RAIN LIKELY. HIGHS 38-46. LOWS 13-23. SLOPE
WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 35-43. LOWS
13-23.
SUNDAY
PARTLY CLOUDY. HIGHS 36-46.
NVZ421-230030-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........51-61.
* MID SLOPE........44-54.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........24-34%.
* MID SLOPE........24-34%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH INCREASING TO 12 TO
18 MPH IN THE AFTERNOON. GUSTS TO 35 MPH.
* RIDGE TOP........SOUTHWEST WINDS 25 TO 40 MPH. GUSTS TO 80 MPH
DECREASING TO 65 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...55%.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 3400-4400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH INCREASING TO 30 TO 40
MPH IN THE AFTERNOON.
* VENTILATION........EXCELLENT.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE
EVENING.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........29-39.
* MID SLOPE........35-45.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........34-44%.
* 24 HR TREND......27% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 15 MPH WITH GUSTS TO 30 MPH.
* RIDGE TOP........SOUTH WINDS 20 TO 35 MPH WITH GUSTS TO 75 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH.
* VENTILATION........VERY GOOD DECREASING TO FAIR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........51-61.
* MID SLOPE........44-54.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH WITH GUSTS TO 35 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 40
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 30 TO 50 MPH WITH GUSTS TO 75 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH INCREASING TO 35 TO 45 MPH
IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
TUESDAY NIGHT
CHANCE OF RAIN AND SNOW. LOWS 28-38. SOUTH WINDS
15 TO 25 MPH DECREASING TO 12 TO 18 MPH IN THE MORNING.
WEDNESDAY
SNOW AND RAIN. HIGHS 40-50. LOWS 22-32. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW AND RAIN. HIGHS 38-48. LOWS 19-29. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
SNOW. HIGHS 36-46. LOWS 4-14. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
HIGHS 35-45. LOWS 4-14.
CAZ272-230030-
GREATER LAKE TAHOE AND TRUCKEE AREA-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........40-46.
* MID SLOPE........35-44.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........62-72%.
* MID SLOPE........57-67%.
* 24 HR TREND......12% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH. GUSTS TO 35 MPH IN
THE MORNING.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH. GUSTS TO 70 MPH
DECREASING TO 55 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...80%.
* MIXING HEIGHT......1100-1600 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 25 TO 35 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........28-37.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........73-83%.
* MID SLOPE........58-68%.
* 24 HR TREND......30% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH WITH GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH WITH GUSTS TO 70
MPH.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......1200-1700 FT AGL DECREASING TO 700-1200 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........VERY GOOD.
TUESDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........44-50.
* MID SLOPE........38-48.
* MIN HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........46-56%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH WITH GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH WITH GUSTS TO 75
MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1300-1800 FT AGL INCREASING TO 2700-3700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH INCREASING TO SOUTH 30
TO 40 MPH IN THE AFTERNOON.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
TUESDAY NIGHT
RAIN AND SNOW LIKELY IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. LOWS 27-37. SOUTH WINDS 9 TO 17 MPH INCREASING
TO 10 TO 18 MPH AFTER MIDNIGHT.
WEDNESDAY
SNOW AND RAIN. HIGHS 35-41. LOWS 24-34. SOUTH WINDS
10 TO 15 MPH.
CHRISTMAS DAY
SNOW. HIGHS 31-36. LOWS 20-30. SOUTHWEST WINDS
10 TO 20 MPH.
FRIDAY
SNOW. HIGHS 30-36. LOWS 9-19. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 29-37. LOWS
9-19.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 34-43.
NVZ423-230030-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........CLOUDY. CHANCE OF RAIN.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........54-60.
* MID SLOPE........48-58.
* 24 HR TREND......6 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........40-50%.
* MID SLOPE........46-56%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS TO 60 MPH
DECREASING TO 45 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...15%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1800-2800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........34-43.
* MID SLOPE........37-43.
* 24 HR TREND......7 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........70-80%.
* MID SLOPE........55-65%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......800-1300 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR DECREASING TO MARGINAL AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........56-64.
* MID SLOPE........52-62.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........27-37%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 50 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 1300-1800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. CHANCE OF RAIN AFTER MIDNIGHT. LOWS 39-47. SOUTH WINDS 9 TO
16 MPH INCREASING TO 15 TO 25 MPH AFTER MIDNIGHT.
WEDNESDAY
RAIN AND SNOW. HIGHS 49-55. LOWS 32-42. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW LIKELY AND A CHANCE OF RAIN. HIGHS 47-55. LOWS
27-37. SOUTH WINDS 10 TO 20 MPH.
FRIDAY
RAIN LIKELY AND A SLIGHT CHANCE OF SNOW. HIGHS 42-50. LOWS
18-28. SLOPE WINDS.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 39-46. LOWS 16-26.
NVZ429-230030-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........54-64.
* MID SLOPE........51-61.
* 24 HR TREND......5 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........29-39%.
* MID SLOPE........25-35%.
* 24 HR TREND......10% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 70 MPH
DECREASING TO 55 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1600-2600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........36-46.
* 24 HR TREND......8 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........58-68%.
* MID SLOPE........35-45%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 7 TO 12 MPH. GUSTS TO 20 MPH IN THE
LATE EVENING AND OVERNIGHT.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 50 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......800 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........FAIR.
TUESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........55-65.
* MID SLOPE........51-61.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHEAST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH
INCREASING TO SOUTH 12 TO 18 MPH WITH GUSTS TO
30 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 20 TO 30 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 2000-3000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 20 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. CHANCE OF RAIN. LOWS 36-46. SOUTHEAST WINDS 19 TO 30 MPH.
WEDNESDAY
RAIN AND SNOW. HIGHS 46-56. LOWS 29-39. SOUTH WINDS
15 TO 25 MPH.
CHRISTMAS DAY
RAIN AND SNOW. HIGHS 46-56. LOWS 27-37. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
SNOW AND RAIN LIKELY. HIGHS 42-52. LOWS 18-28. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 36-46. LOWS
17-27.
SUNDAY
PARTLY CLOUDY. HIGHS 38-48.
CAZ270-278-NVZ458-230030-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........CLOUDY. CHANCE OF RAIN.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........46-56.
* MID SLOPE........43-51.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........58-68%.
* MID SLOPE........58-68%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 16 MPH WITH GUSTS TO 30
MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 50
MPH.
* CHC WETTING RAIN...15%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 2700-3700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CHANCE OF SNOW IN THE EVENING. CHANCE OF RAIN
. SNOW AFTER MIDNIGHT.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........32-41.
* MID SLOPE........33-39.
* 24 HR TREND......5 DEGREES COOLER.
* MAX HUMIDITY.......
* VALLEYS..........84-94%.
* MID SLOPE........84-94%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH
INCREASING TO SOUTHWEST 20 TO 30 MPH WITH
GUSTS TO 45 MPH IN THE MORNING.
* CHC WETTING RAIN...45%.
* MIXING HEIGHT......1300-1800 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.
* VENTILATION........GOOD DECREASING TO FAIR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING.
CHANCE OF RAIN.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........44-54.
* MIN HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........42-52%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 17 MPH WITH GUSTS TO 30 MPH.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...20%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 2400-3400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH INCREASING TO 25 TO 35 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
TUESDAY NIGHT
CHANCE OF RAIN IN THE EVENING, THEN RAIN AFTER
MIDNIGHT. LOWS 32-42. SOUTH WINDS 9 TO 16 MPH INCREASING TO 12 TO
20 MPH AFTER MIDNIGHT.
WEDNESDAY
RAIN AND SNOW. HIGHS 42-52. LOWS 28-38. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW AND RAIN. HIGHS 38-48. LOWS 22-32. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
SNOW LIKELY. HIGHS 34-44. LOWS 11-21. SLOPE WINDS.
SATURDAY
MOSTLY CLOUDY. HIGHS 33-41. LOWS 11-21.
SUNDAY
MOSTLY CLOUDY. HIGHS 34-44.
CAZ271-230030-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........RAIN LIKELY IN THE MORNING. SNOW. RAIN IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........43-51.
* MID SLOPE........40-48.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........67-77%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH WITH GUSTS TO 25
MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS TO 60 MPH
DECREASING TO 40 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...60%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 1700-2700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........29-39.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........86-96%.
* MID SLOPE........81-91%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH WITH GUSTS TO 20
MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 45
MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO
55 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...60%.
* MIXING HEIGHT......1000-1500 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.
* VENTILATION........GOOD DECREASING TO FAIR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........RAIN AND SNOW LIKELY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........41-51.
* MIN HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........46-56%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 16 MPH. GUSTS TO 25 MPH
INCREASING TO 30 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 2800-3800 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
TUESDAY NIGHT
RAIN LIKELY IN THE EVENING, THEN RAIN AND SNOW
AFTER MIDNIGHT. LOWS 27-37. SOUTH WINDS 9 TO 16 MPH INCREASING TO
10 TO 18 MPH IN THE LATE EVENING AND OVERNIGHT.
WEDNESDAY
SNOW AND RAIN. HIGHS 39-47. LOWS 25-35. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW AND RAIN. HIGHS 35-43. LOWS 20-30. SOUTH WINDS
10 TO 15 MPH.
FRIDAY
SNOW. HIGHS 33-41. LOWS 10-20. SLOPE WINDS.
SATURDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 34-42. LOWS
9-19.
SUNDAY
MOSTLY CLOUDY. HIGHS 36-46.
CAZ274-230030-
SOUTHERN MONO COUNTY-
206 AM PST MON DEC 22 2025
TODAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........46-56.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........18-28%.
* MID SLOPE........23-33%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 10 TO 18 MPH WITH GUSTS TO 30
MPH INCREASING TO 13 TO 20 MPH WITH GUSTS TO
30 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 25 TO 40 MPH. GUSTS TO 70 MPH
DECREASING TO 55 MPH LATE IN THE AFTERNOON.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......1600-2100 FT AGL INCREASING TO 3000-4000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH INCREASING TO 30 TO 40
MPH IN THE AFTERNOON.
* VENTILATION........EXCELLENT.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........27-37.
* MID SLOPE........29-39.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........36-46%.
* 24 HR TREND......17% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 15 MPH WITH GUSTS TO 25 MPH.
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 55 MPH
INCREASING TO 25 TO 35 MPH WITH GUSTS TO 60
MPH IN THE MORNING.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1600-2100 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH.
* VENTILATION........VERY GOOD DECREASING TO FAIR AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF RAIN AND SNOW IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........47-57.
* MID SLOPE........43-53.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 16 MPH WITH GUSTS TO 25 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 35
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTH WINDS 25 TO 40 MPH WITH GUSTS TO 60 MPH.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 2700-3700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO 25 TO 35 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
TUESDAY NIGHT
SNOW LIKELY AND A CHANCE OF RAIN AND SNOW. LOWS
27-37. SOUTH WINDS 13 TO 20 MPH DECREASING TO 10 TO 17 MPH IN THE
MORNING.
WEDNESDAY
SNOW AND RAIN. HIGHS 36-46. LOWS 20-30. SOUTH WINDS
10 TO 20 MPH.
CHRISTMAS DAY
SNOW AND RAIN. HIGHS 33-43. LOWS 18-28. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SNOW. HIGHS 32-42. LOWS 4-14.
SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
HIGHS 32-42. LOWS 4-14.
.8 TO 14 DAY OUTLOOK FOR (MON DEC 29 THROUGH SUN JAN 4)
ABOVE NORMAL TEMPERATURES AND PRECIPITATION.
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