461
FNUS55 KREV 052154
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
254 PM PDT TUE MAY 5 2026
DISCUSSION
SHOWERS AND ISOLATED THUNDERSTORMS ARE POSSIBLE THROUGH THE AFTERNOON
SOUTH OF I-80. HIGH PRESSURE MOVES INTO THE REGION AFTER TODAY,
RESULTING IN SEVERAL DAYS OF WARM AND DRY WEATHER THAT LASTS INTO
EARLY NEXT WEEK. RECORD SETTING HEAT IS ALSO POSSIBLE EARLY NEXT WEEK.
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
NVZ420-061530-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........41-50.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........63-73%.
* MID SLOPE........56-66%.
* 24 HR TREND......18% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 17 MPH DECREASING TO 7 TO
12 MPH LATE IN THE NIGHT. GUSTS TO 25 MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......4000-5000 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 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..........70-80.
* MID SLOPE........65-75.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........15-25%.
* 24 HR TREND......12% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH UNTIL
LATE AFTERNOON.
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 4600-5600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........43-53.
* MAX HUMIDITY.......
* VALLEYS..........49-59%.
* MID SLOPE........38-48%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......3000-4000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........76-86.
* MID SLOPE........71-81.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 9 TO 15 MPH IN
THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 5900-6900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 37-47. WEST WINDS 10 TO 17 MPH
DECREASING TO 8 TO 13 MPH AFTER MIDNIGHT.
FRIDAY
CLEAR. HIGHS 74-84. LOWS 37-47. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 72-82. LOWS 37-47. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 77-87. LOWS 42-52. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 81-91. LOWS 44-54.
NVZ421-061530-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...15%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........40-50.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........71-81%.
* MID SLOPE........53-63%.
* 24 HR TREND......16% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 9 TO 14 MPH BECOMING DOWNSLOPE 2
TO 5 MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH. GUSTS TO 40 MPH.
* MIXING HEIGHT......1800-2800 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 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..........64-74.
* MID SLOPE........57-67.
* 24 HR TREND......8 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........13-23%.
* 24 HR TREND......25% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 9 TO 14 MPH
WITH GUSTS TO 25 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH.
* MIXING HEIGHT......1900-2900 FT AGL INCREASING TO 3500-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........42-52.
* MAX HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........30-40%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT......2400-3400 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........65-75.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 7 TO 12 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH. GUSTS TO 20 MPH IN THE
MORNING THEN 25 MPH LATE IN THE AFTERNOON.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 5500-6500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. WEST WINDS 9 TO 15 MPH UNTIL
EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 72-82. LOWS 32-42. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 71-81. LOWS 32-42. NORTH WINDS 10 TO
15 MPH.
SUNDAY
CLEAR. HIGHS 77-87. LOWS 36-46. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 81-91. LOWS 39-49.
CAZ272-061530-
GREATER LAKE TAHOE AND TRUCKEE AREA-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........34-43.
* 24 HR TREND......7 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........84-94%.
* MID SLOPE........72-82%.
* 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........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......1600-2100 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........57-67.
* 24 HR TREND......8 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........26-36%.
* MID SLOPE........22-32%.
* 24 HR TREND......28% DRIER.
* 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......1600-2100 FT AGL INCREASING TO 3500-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........37-47.
* MID SLOPE........37-46.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........48-58%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......2400-3400 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........63-72.
* MID SLOPE........60-70.
* MIN HUMIDITY.......
* VALLEYS..........30-40%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 7 TO 12 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN THE
LATE MORNING AND AFTERNOON.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 4200-5200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. WEST WINDS 9 TO 14 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 63-72. LOWS 32-42. SLOPE WINDS.
SATURDAY
CLEAR. HIGHS 66-76. LOWS 32-42. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 71-81. LOWS 36-46. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 73-83. LOWS 38-48.
NVZ423-061530-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........42-51.
* MID SLOPE........42-51.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........41-51%.
* 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......4900-5900 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 15 TO 25 MPH DECREASING TO 10 TO 15 MPH
AFTER MIDNIGHT.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........74-82.
* MID SLOPE........69-79.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........11-16%.
* MID SLOPE........13-18%.
* 24 HR TREND......9% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 14 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH. GUSTS TO 35 MPH UNTIL
LATE AFTERNOON.
* MIXING HEIGHT......1900-2900 FT AGL INCREASING TO 5200-6200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........47-55.
* MAX HUMIDITY.......
* VALLEYS..........36-46%.
* MID SLOPE........24-34%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......3500-4500 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........81-89.
* MID SLOPE........75-85.
* MIN HUMIDITY.......
* VALLEYS..........12-17%.
* MID SLOPE........13-19%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 9 TO 15 MPH IN
THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35
MPH.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 6700-7700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING WEST 15 TO 25 MPH IN THE
AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 45-54. WEST WINDS 9 TO 16 MPH.
FRIDAY
CLEAR. HIGHS 80-86. LOWS 42-52. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 78-86. LOWS 42-52. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 84-92. LOWS 42-52. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 87-97. LOWS 46-56.
NVZ429-061530-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING.
* CHANCE OF THUNDER..10%.
* CHC WETTING RAIN...20%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........42-52.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........64-74%.
* MID SLOPE........49-59%.
* 24 HR TREND......22% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH
SHIFTING TO THE NORTH 10 TO 15 MPH WITH GUSTS
TO 35 MPH LATE IN THE NIGHT.
* MIXING HEIGHT......2800-3800 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%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........65-75.
* 24 HR TREND......7 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........11-19%.
* MID SLOPE........13-21%.
* 24 HR TREND......21% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 15 MPH. GUSTS TO 25 MPH IN THE
LATE MORNING AND AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 5100-6100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........45-55.
* MAX HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT. GUSTS TO 25 MPH.
* MIXING HEIGHT......3100-4100 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........77-87.
* MID SLOPE........73-83.
* MIN HUMIDITY.......
* VALLEYS..........12-18%.
* MID SLOPE........12-18%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 8 TO 13 MPH IN
THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 5900-6900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 42-52. WEST WINDS 9 TO 15 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 76-86. LOWS 41-51. NORTH
WINDS 10 TO 15 MPH.
SUNDAY
CLEAR. HIGHS 81-91. LOWS 41-51. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 86-96. LOWS 46-56.
CAZ270-278-NVZ458-061530-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........37-47.
* MID SLOPE........38-48.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........68-78%.
* MID SLOPE........49-59%.
* 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.
* MIXING HEIGHT......4900-5900 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 MARGINAL AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........71-81.
* MID SLOPE........68-76.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........12-22%.
* MID SLOPE........16-24%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
MORNING.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 5600-6600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........42-52.
* MAX HUMIDITY.......
* VALLEYS..........61-71%.
* MID SLOPE........44-54%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......3500-4500 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........75-85.
* MID SLOPE........71-81.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........17-26%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 10 TO 17 MPH
WITH GUSTS TO 25 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 6200-7200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING WEST 15 TO 25 MPH IN THE
AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 40-50. WEST WINDS 13 TO 20 MPH
DECREASING TO 8 TO 13 MPH.
FRIDAY
CLEAR. HIGHS 73-83. LOWS 35-45. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 73-83. LOWS 35-45. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 79-89. LOWS 38-48. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 82-92. LOWS 41-51.
CAZ271-061530-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........36-46.
* MID SLOPE........36-46.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........85-95%.
* MID SLOPE........75-85%.
* 24 HR TREND......4% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST 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 30
MPH.
* MIXING HEIGHT......3400-4400 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..........70-78.
* MID SLOPE........66-76.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........18-28%.
* 24 HR TREND......17% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1700-2700 FT AGL INCREASING TO 5100-6100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........39-49.
* MID SLOPE........39-49.
* MAX HUMIDITY.......
* VALLEYS..........77-87%.
* MID SLOPE........57-67%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......3100-4100 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........70-80.
* MID SLOPE........67-77.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........22-32%.
* 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........WEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 4900-5900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING WEST 15 TO 20 MPH IN THE
AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 36-46. WEST WINDS 9 TO 15 MPH BECOMING
DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 69-79. LOWS 33-43. WEST WINDS 10 TO 15 MPH.
SATURDAY
CLEAR. HIGHS 72-82. LOWS 33-43. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 77-87. LOWS 36-46. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 78-88. LOWS 38-48.
CAZ274-061530-
SOUTHERN MONO COUNTY-
254 PM PDT TUE MAY 5 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. CHANCE OF
SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...20%.
* MIN TEMPERATURE....
* VALLEYS..........30-40.
* MID SLOPE........30-40.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........79-89%.
* MID SLOPE........66-76%.
* 24 HR TREND......14% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 7 TO 12 MPH WITH GUSTS TO 20 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 45 MPH.
* MIXING HEIGHT......1900-2900 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 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.
* 24 HR TREND......10 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........18-28%.
* 24 HR TREND......25% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 8 TO 13 MPH
WITH GUSTS TO 25 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.
* MIXING HEIGHT......2100-3100 FT AGL INCREASING TO 3500-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 20 MPH.
* VENTILATION........EXCELLENT.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........31-41.
* MAX HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........40-50%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH WITH GUSTS TO 25 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH. GUSTS TO 30 MPH
UNTIL EARLY MORNING.
* MIXING HEIGHT......2700-3700 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........66-76.
* MID SLOPE........63-73.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........15-25%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 5 TO 10 MPH
LATE IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 4600-5600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. WEST WINDS 9 TO 14 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY THROUGH SATURDAY
CLEAR. HIGHS 69-79. LOWS 34-44. NORTH
WINDS 8 TO 13 MPH.
SUNDAY
CLEAR. HIGHS 74-84. LOWS 38-48. SLOPE WINDS.
MONDAY THROUGH TUESDAY
CLEAR. HIGHS 77-87. LOWS 40-50.
.8 TO 14 DAY OUTLOOK FOR (WED MAY 13 THROUGH TUE MAY 19)
ABOVE NORMAL TEMPERATURES AND PRECIPITATION.
=
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