039
FNUS55 KREV 050903
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
203 AM PDT TUE MAY 5 2026
DISCUSSION
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS RETURN ONCE MORE
THROUGH THIS EVENING. NEW FIRE STARTS MAY BE POSSIBLE WITH ANY
LIGHTNING THAT OCCURS OUTSIDE OF MAIN RAIN CORES. A WARMING AND
DRYING TREND STARTS WEDNESDAY.
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
NVZ420-060100-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...25%.
* MAX TEMPERATURE....
* VALLEYS..........67-77.
* MID SLOPE........60-70.
* 24 HR TREND......7 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........15-25%.
* MID SLOPE........22-32%.
* 24 HR TREND......14% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH WITH GUSTS TO 20 MPH
SHIFTING TO THE NORTH 9 TO 16 MPH WITH GUSTS
TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 5600-6600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH SHIFTING TO THE NORTH
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........40-49.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........62-72%.
* MID SLOPE........53-63%.
* 24 HR TREND......18% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 17 MPH DECREASING TO 7 TO
12 MPH IN THE MORNING. GUSTS TO 25 MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........65-75.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........14-24%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 7 TO 12 MPH IN
THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 4400-5400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 38-48. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 76-86. LOWS 37-47. WEST WINDS 10 TO 15 MPH.
FRIDAY
CLEAR. HIGHS 74-84. LOWS 37-47. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 73-83. LOWS 38-48. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 79-89. LOWS 41-51.
MONDAY
SUNNY. HIGHS 83-93.
NVZ421-060100-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........SNOW SHOWERS IN THE MORNING, THEN CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...30%.
* MAX TEMPERATURE....
* VALLEYS..........56-66.
* MID SLOPE........48-58.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........31-41%.
* MID SLOPE........34-44%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 9 TO 14
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 2600-3600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...20%.
* MIN TEMPERATURE....
* VALLEYS..........32-42.
* MID SLOPE........40-50.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........70-80%.
* MID SLOPE........50-60%.
* 24 HR TREND......16% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 14 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 20 TO 30 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......2000-3000 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........57-67.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........13-23%.
* 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 20 MPH.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 3600-4600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 32-42. NORTH WINDS 8 TO 13 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 71-81. LOWS 32-42. SOUTHWEST WINDS 10 TO
15 MPH.
FRIDAY
CLEAR. HIGHS 71-81. LOWS 33-43. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 70-80. LOWS 34-44. NORTH WINDS 10 TO
15 MPH.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 78-88. LOWS 37-47.
CAZ272-060100-
GREATER LAKE TAHOE AND TRUCKEE AREA-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...25%.
* MAX TEMPERATURE....
* VALLEYS..........52-60.
* MID SLOPE........49-59.
* 24 HR TREND......9 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........45-55%.
* 24 HR TREND......19% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 3600-4600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...15%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........34-43.
* 24 HR TREND......7 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........83-93%.
* MID SLOPE........71-81%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH INCREASING TO NORTH
20 TO 30 MPH AFTER MIDNIGHT. GUSTS TO 40 MPH
INCREASING TO 45 MPH AFTER MIDNIGHT, THEN
DECREASING TO 30 MPH IN THE MORNING.
* MIXING HEIGHT......1500-2000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........60-69.
* MID SLOPE........56-66.
* MIN HUMIDITY.......
* VALLEYS..........26-36%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH
UNTIL LATE AFTERNOON.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 3300-4300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 36-46. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 63-71. LOWS 35-45. SLOPE WINDS.
FRIDAY
CLEAR. HIGHS 62-70. LOWS 35-45. SLOPE WINDS.
SATURDAY
CLEAR. HIGHS 66-74. LOWS 35-45. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 71-80. LOWS 38-48.
NVZ423-060100-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........67-77.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........17-27%.
* MID SLOPE........17-27%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 5 TO 10
MPH IN THE MORNING, THEN INCREASING TO NORTH 9
TO 17 MPH WITH GUSTS TO 25 MPH IN THE
AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1700-2700 FT AGL INCREASING TO 7200-8200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING NORTH 15 TO 25 MPH IN THE
AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........42-51.
* MID SLOPE........43-51.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........37-47%.
* 24 HR TREND......34% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 17 MPH WITH GUSTS TO 25 MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 45 MPH.
* MIXING HEIGHT......4700-5700 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 15 TO 25 MPH.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........74-80.
* MID SLOPE........68-78.
* MIN HUMIDITY.......
* VALLEYS..........11-16%.
* MID SLOPE........12-17%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 5000-6000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 42-52. NORTH WINDS 5 TO 10 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 80-88. LOWS 42-52. WEST WINDS 10 TO 15 MPH.
FRIDAY
CLEAR. HIGHS 80-86. LOWS 43-53. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 77-83. LOWS 42-52. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 83-89. LOWS 42-52.
MONDAY
SUNNY. HIGHS 89-95.
NVZ429-060100-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...30%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........59-69.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........26-36%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 4100-5100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...15%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........42-52.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........60-70%.
* MID SLOPE........43-53%.
* 24 HR TREND......22% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 14 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 45 MPH.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........65-75.
* MIN HUMIDITY.......
* VALLEYS..........11-19%.
* MID SLOPE........12-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 14 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......900-1400 FT AGL INCREASING TO 5000-6000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 38-48. NORTH WINDS 8 TO 13 MPH
SHIFTING TO THE SOUTH 7 TO 12 MPH AFTER MIDNIGHT.
THURSDAY
CLEAR. HIGHS 77-87. LOWS 38-48. WEST WINDS 10 TO 15 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 76-86. LOWS 41-51. NORTH
WINDS 10 TO 15 MPH.
SUNDAY
CLEAR. HIGHS 79-89. LOWS 43-53.
MONDAY
SUNNY. HIGHS 85-95.
CAZ270-278-NVZ458-060100-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........SUNNY THEN BECOMING PARTLY CLOUDY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..10%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........69-79.
* MID SLOPE........66-74.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........19-29%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 16 MPH WITH GUSTS TO 30 MPH
INCREASING TO 12 TO 20 MPH WITH GUSTS TO 30
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......2500-3500 FT AGL INCREASING TO 8500-9500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 15 TO 20 MPH INCREASING TO 20 TO 30 MPH
IN THE AFTERNOON.
* VENTILATION........EXCELLENT.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........38-48.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........66-76%.
* MID SLOPE........48-58%.
* 24 HR TREND......13% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 13 TO 20 MPH WITH GUSTS TO 30 MPH
DECREASING TO 9 TO 17 MPH WITH GUSTS TO 30 MPH
IN THE LATE EVENING AND OVERNIGHT.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......4500-5500 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 20 TO 30 MPH DECREASING TO 10 TO 20 MPH
AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........68-76.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........15-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
MORNING.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 5100-6100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 41-51. NORTHWEST WINDS 5 TO 10 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 76-86. LOWS 40-50. WEST WINDS 10 TO 15 MPH.
FRIDAY
CLEAR. HIGHS 72-82. LOWS 35-45. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 72-82. LOWS 35-45. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 78-88. LOWS 38-48.
MONDAY
PARTLY CLOUDY. HIGHS 82-92.
CAZ271-060100-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...10%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........60-70.
* 24 HR TREND......8 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........29-39%.
* MID SLOPE........29-39%.
* 24 HR TREND......21% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 9 TO 14
MPH IN THE LATE MORNING AND AFTERNOON. GUSTS
TO 25 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 6000-7000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH INCREASING TO 15 TO 25 MPH
IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHANCE OF THUNDER..10%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........36-46.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........84-94%.
* MID SLOPE........74-84%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35
MPH.
* MIXING HEIGHT......2900-3900 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%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........69-79.
* MID SLOPE........66-76.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........18-28%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 4600-5600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 38-48. DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 70-80. LOWS 37-47. SOUTHWEST WINDS 10 TO
15 MPH.
FRIDAY
CLEAR. HIGHS 68-78. LOWS 35-45. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 71-81. LOWS 35-45. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 78-86. LOWS 39-49.
MONDAY
PARTLY CLOUDY. HIGHS 79-87.
CAZ274-060100-
SOUTHERN MONO COUNTY-
203 AM PDT TUE MAY 5 2026
TODAY
* SKY/WEATHER........SHOWERS LIKELY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE OF THUNDER..20%.
* CHC WETTING RAIN...25%.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........45-55.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........42-52%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 5 TO 10
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 3200-4200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...20%.
* MIN TEMPERATURE....
* VALLEYS..........30-40.
* MID SLOPE........31-41.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........76-86%.
* MID SLOPE........64-74%.
* 24 HR TREND......14% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 7 TO 12 MPH. GUSTS TO 20 MPH IN
THE EVENING.
* RIDGE TOP........NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35
MPH INCREASING TO NORTH 20 TO 30 MPH WITH
GUSTS TO 45 MPH AFTER MIDNIGHT.
* MIXING HEIGHT......2000-3000 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO FAIR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........59-69.
* MID SLOPE........55-65.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........16-26%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 8 TO 13 MPH
WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......1100-1600 FT AGL INCREASING TO 3800-4800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 20 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
WEDNESDAY NIGHT
CLEAR. LOWS 31-41. NORTH WINDS 7 TO 12 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
THURSDAY
CLEAR. HIGHS 66-76. LOWS 31-41. SLOPE WINDS.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 68-78. LOWS 33-43. NORTH
WINDS 10 TO 15 MPH.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 73-83. LOWS 37-47.
.8 TO 14 DAY OUTLOOK FOR (TUE MAY 12 THROUGH MON MAY 18)
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
=
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