262
FNUS55 KREV 201013
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
313 AM PDT TUE MAY 20 2025
DISCUSSION
WARM AND VERY DRY WEATHER PREVAILS THROUGH THIS WEEK WITH INCREASING WINDS
BRINGING POSSIBLE ELEVATED FIRE WEATHER CONDITIONS ACROSS VALLEYS AND FOOTHILLS
OF WESTERN NEVADA BOTH THURSDAY AND FRIDAY AFTERNOONS. LIGHT SHOWERS AND/OR A
STRAY THUNDERSTORM WILL BE POSSIBLE THURSDAY AND FRIDAY ALONG THE OREGON BORDER.
LIGHTER WINDS COMBINED WITH WARM AND DRY CONDITIONS ARE LIKELY HEADING INTO
THE HOLIDAY WEEKEND. HOWEVER, A STRAY SHOWER OR TWO ISN'T OUT OF THE PICTURE.
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
NVZ420-210015-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........68-78.
* 24 HR TREND......4 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........11-19%.
* 24 HR TREND......8% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 8 TO 13
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1900-2900 FT AGL INCREASING TO 6500-7500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........40-49.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........40-50%.
* MID SLOPE........35-45%.
* 24 HR TREND......14% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 15 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4200-5200 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-84.
* MID SLOPE........71-81.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........12-18%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO THE
WEST LATE IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 5000-6000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 45-55. WEST WINDS 9 TO 16 MPH
DECREASING TO 7 TO 12 MPH AFTER MIDNIGHT.
THURSDAY
CLEAR. HIGHS 72-82. LOWS 39-49. SOUTHWEST WINDS 10 TO
20 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 72-82. LOWS 39-49. NORTHWEST
WINDS 10 TO 20 MPH.
SUNDAY
CLEAR. HIGHS 77-87. LOWS 45-55.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 76-86.
NVZ421-210015-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........64-74.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........9-19%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 7 TO 12
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 6600-7600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........41-51.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........30-40%.
* 24 HR TREND......8% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS. GUSTS TO 25 MPH IN THE EVENING.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4600-5600 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-84.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........9-19%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 5 TO 10
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 5500-6500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 40-50. WEST WINDS 9 TO 15 MPH.
THURSDAY
CLEAR. HIGHS 71-81. LOWS 36-46. SOUTHWEST WINDS 10 TO
20 MPH.
FRIDAY
CLEAR. HIGHS 67-77. LOWS 35-45. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 71-81. LOWS 35-45. NORTHWEST WINDS 10 TO
15 MPH.
SUNDAY
CLEAR. HIGHS 74-84. LOWS 39-49.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 72-82.
CAZ272-210015-
GREATER LAKE TAHOE AND TRUCKEE AREA-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........61-70.
* MID SLOPE........58-68.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........18-28%.
* MID SLOPE........16-26%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 8 TO 13 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 3700-4700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........35-44.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........36-46%.
* 24 HR TREND......24% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE MORNING.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2000-3000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........64-74.
* MID SLOPE........61-71.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........15-25%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 8 TO 13 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 3700-4700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 41-49. SOUTHWEST WINDS 9 TO 14 MPH.
THURSDAY
CLEAR. HIGHS 60-68. LOWS 35-45. SOUTHWEST WINDS 10 TO
20 MPH.
FRIDAY
CLEAR. HIGHS 57-65. LOWS 35-45. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 63-73. LOWS 35-45. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 67-76. LOWS 39-49.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 63-72.
NVZ423-210015-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-80.
* MID SLOPE........68-78.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........10-15%.
* MID SLOPE........10-16%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2300-3300 FT AGL INCREASING TO 7000-8000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........37-47.
* MID SLOPE........40-50.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........24-34%.
* 24 HR TREND......18% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 15 MPH SHIFTING TO THE
NORTH 7 TO 12 MPH AFTER MIDNIGHT.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4300-5300 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........78-84.
* MID SLOPE........72-82.
* MIN HUMIDITY.......
* VALLEYS..........8-14%.
* MID SLOPE........10-15%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
MORNING.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 5000-6000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 45-54. DOWNSLOPE 2 TO 5 MPH BECOMING
WEST 7 TO 12 MPH AFTER MIDNIGHT.
THURSDAY
CLEAR. HIGHS 78-84. LOWS 42-52. WEST WINDS 10 TO 20 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 76-83. LOWS 42-52. NORTHWEST
WINDS 8 TO 13 MPH.
SUNDAY
CLEAR. HIGHS 82-88. LOWS 44-54.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 83-89.
NVZ429-210015-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........74-84.
* MID SLOPE........69-79.
* 24 HR TREND......7 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........8-13%.
* MID SLOPE........9-14%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 7 TO 12
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 7500-8500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........43-53.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........30-40%.
* MID SLOPE........24-34%.
* 24 HR TREND......15% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 14 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4700-5700 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........73-83.
* MIN HUMIDITY.......
* VALLEYS..........8-13%.
* MID SLOPE........9-14%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 5000-6000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 47-56. WEST WINDS 8 TO 13 MPH.
THURSDAY
CLEAR. HIGHS 78-88. LOWS 43-53. WEST WINDS 10 TO 20 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 75-85. LOWS 43-53. NORTHWEST
WINDS 10 TO 20 MPH.
SUNDAY
CLEAR. HIGHS 80-90. LOWS 47-57.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 80-90.
CAZ270-278-NVZ458-210015-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........67-77.
* MID SLOPE........61-71.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........13-23%.
* 24 HR TREND......10% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 9 TO 14 MPH IN
THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1500-2500 FT AGL INCREASING TO 6300-7300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING WEST 15 TO 20 MPH IN THE
AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........35-45.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........50-60%.
* MID SLOPE........35-45%.
* 24 HR TREND......20% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 16 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4000-5000 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........72-82.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........13-21%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 4500-5500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 39-49. WEST WINDS 9 TO 15 MPH DECREASING TO 7 TO 12 MPH AFTER
MIDNIGHT.
THURSDAY
CLEAR. HIGHS 69-79. LOWS 36-46. WEST WINDS 10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 68-78. LOWS
36-46. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 71-81. LOWS 37-47. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 77-87. LOWS 40-50.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 75-85.
CAZ271-210015-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........65-75.
* MID SLOPE........63-73.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........16-24%.
* MID SLOPE........15-25%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 7 TO 12 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 5500-6500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........34-44.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........53-63%.
* MID SLOPE........42-52%.
* 24 HR TREND......21% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH WITH GUSTS TO 20 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......3100-4100 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........16-22%.
* MID SLOPE........15-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 5 TO 10 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH SHIFTING TO THE WEST
LATE IN THE AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 5000-6000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 38-48. SOUTHWEST WINDS 9 TO 16 MPH UNTIL EARLY MORNING BECOMING
DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 64-74. LOWS 34-44. SOUTHWEST WINDS 10 TO
15 MPH.
FRIDAY
CLEAR. HIGHS 63-73. LOWS 34-44. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY
CLEAR. HIGHS 69-79. LOWS 35-45. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 75-83. LOWS 39-49.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 69-79.
CAZ274-210015-
SOUTHERN MONO COUNTY-
313 AM PDT TUE MAY 20 2025
TODAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........67-77.
* MID SLOPE........63-73.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........7-17%.
* MID SLOPE........9-19%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 7 TO 12 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 6000-7000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........36-44.
* 24 HR TREND......5 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........39-49%.
* MID SLOPE........34-44%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......4500-5500 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........66-76.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........10-18%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST IN THE LATE MORNING AND AFTERNOON.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 5400-6400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 37-47. WEST WINDS 9 TO 14 MPH.
THURSDAY
CLEAR. HIGHS 67-77. LOWS 34-44. SOUTHWEST WINDS 10 TO
20 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 65-75. LOWS 33-43. NORTHWEST
WINDS 8 TO 13 MPH.
SUNDAY
CLEAR. HIGHS 69-79. LOWS 37-47.
MEMORIAL DAY
PARTLY CLOUDY. HIGHS 68-78.
.8 TO 14 DAY OUTLOOK FOR (TUE MAY 27 THROUGH MON JUN 2)
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
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