463
FNUS55 KREV 051954
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
DISCUSSION
HOT AND VERY DRY CONDITIONS PERSIST THROUGH SATURDAY, WITH POOR
OVERNIGHT RECOVERIES EXTENDING DAILY BURNING PERIODS AND LOWER-VALLEY
HEAT INCREASING HEAT STRESS FOR CREWS. TYPICAL WEST-SOUTHWEST
AFTERNOON BREEZES PREVAIL. SMOKE AND HAZE REMAIN POSSIBLE, WITH LOW
SHOWER AND THUNDERSTORM CHANCES RETURNING TO MONO AND MINERAL
COUNTIES FRIDAY AFTERNOON. HOT TEMPERATURES AND RESULTING DRY
CONDITIONS MAY CONTINUE THROUGH SUNDAY EVENING BEFORE COOLING OFF A
FEW DEGREES 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
NVZ420-061415-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........58-68.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........31-41%.
* MID SLOPE........20-30%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......5600-6600 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........91-101.
* MID SLOPE........89-99.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........5-15%.
* MID SLOPE........9-17%.
* 24 HR TREND......4% WETTER.
* 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.
* MIXING HEIGHT......1600-2600 FT AGL INCREASING TO 8200-9200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........56-66.
* MID SLOPE........60-70.
* MAX HUMIDITY.......
* VALLEYS..........37-47%.
* MID SLOPE........26-36%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 15 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......6200-7200 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........90-100.
* MID SLOPE........88-98.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........12-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......600 FT AGL INCREASING TO 7500-8500 FT AGL IN
THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 57-67. WEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING BECOMING
DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 91-101. LOWS 54-64. WEST
WINDS 10 TO 15 MPH.
TUESDAY
CLEAR. HIGHS 87-97. LOWS 53-63.
WEDNESDAY
PARTLY CLOUDY. HIGHS 85-95.
NVZ421-061415-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........60-70.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........31-41%.
* MID SLOPE........20-30%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 15 MPH WITH GUSTS TO 25 MPH
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......6600-7600 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........90-100.
* MID SLOPE........83-93.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........9-19%.
* MID SLOPE........9-19%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 8 TO 13
MPH IN THE AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......2800-3800 FT AGL INCREASING TO 11400-12400 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........52-62.
* MID SLOPE........61-71.
* MAX HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........25-35%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 8 TO 13 MPH WITH GUSTS TO 20 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH
UNTIL EARLY MORNING.
* MIXING HEIGHT......6400-7400 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........89-99.
* MID SLOPE........82-92.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........10-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........LIGHT WINDS BECOMING NORTH 10 TO 15 MPH IN THE
AFTERNOON.
* MIXING HEIGHT......700 FT AGL INCREASING TO 9300-10300 FT AGL IN
THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
52-62. DOWNSLOPE 2 TO 5 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 89-99. LOWS
51-61. SLOPE WINDS.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 89-99. LOWS
50-60. SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY
PARTLY CLOUDY. HIGHS 87-97. LOWS 50-60. SOUTHWEST WINDS
10 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 85-95.
LOWS 48-58.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
83-93.
CAZ272-061415-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1254 PM PDT WED AUG 5 2026
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........53-63.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........48-58%.
* MID SLOPE........21-31%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........78-88.
* MID SLOPE........78-88.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........17-27%.
* 24 HR TREND......5% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 5 TO 10 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH.
* MIXING HEIGHT......1800-2800 FT AGL INCREASING TO 6800-7800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........54-63.
* MID SLOPE........56-66.
* MAX HUMIDITY.......
* VALLEYS..........57-67%.
* MID SLOPE........29-39%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......3600-4600 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 15 TO 20 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........79-89.
* MID SLOPE........79-89.
* MIN HUMIDITY.......
* VALLEYS..........19-29%.
* MID SLOPE........20-30%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......200-500 FT AGL THEN 7300-8300 FT AGL IN THE
AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 54-64. DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 80-90. LOWS 52-62. SLOPE WINDS.
SUNDAY THROUGH MONDAY
CLEAR. HIGHS 77-87. LOWS 50-60. SOUTHWEST
WINDS 8 TO 13 MPH.
TUESDAY THROUGH WEDNESDAY
CLEAR. HIGHS 74-84. LOWS 47-57.
NVZ423-061415-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........58-68.
* MID SLOPE........61-70.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........18-28%.
* MID SLOPE........12-22%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS. GUSTS TO 20 MPH AFTER MIDNIGHT.
* MIXING HEIGHT......5500-6500 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........99-105.
* MID SLOPE........93-103.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........6-11%.
* MID SLOPE........6-11%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 13
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1500-2000 FT AGL INCREASING TO 9200-10200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........62-71.
* MID SLOPE........63-72.
* MAX HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........18-28%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH UNTIL
EARLY MORNING.
* MIXING HEIGHT......6000-7000 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........99-107.
* MID SLOPE........94-104.
* MIN HUMIDITY.......
* VALLEYS..........8-13%.
* MID SLOPE........8-13%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS. GUSTS TO 20 MPH IN THE MORNING.
* MIXING HEIGHT......600 FT AGL INCREASING TO 8300-9300 FT AGL IN
THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS 64-73. WEST WINDS 7 TO 12 MPH IN THE EVENING BECOMING DOWNSLOPE
2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 97-107. LOWS 61-71.
SOUTHWEST WINDS 8 TO 13 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. HIGHS 92-100. LOWS
60-70.
NVZ429-061415-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........57-67.
* MID SLOPE........61-71.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........24-34%.
* MID SLOPE........12-22%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......6300-7300 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........95-105.
* MID SLOPE........91-101.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........6-13%.
* MID SLOPE........6-12%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......1700-2200 FT AGL INCREASING TO 9600-10600 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........59-69.
* MID SLOPE........63-73.
* MAX HUMIDITY.......
* VALLEYS..........29-39%.
* MID SLOPE........18-28%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHWEST WINDS 8 TO 13 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* MIXING HEIGHT......6500-7500 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........96-106.
* MID SLOPE........92-102.
* MIN HUMIDITY.......
* VALLEYS..........7-15%.
* MID SLOPE........7-15%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600 FT AGL INCREASING TO 8300-9300 FT AGL IN
THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 60-70. WEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING BECOMING
DOWNSLOPE 2 TO 5 MPH.
SATURDAY
CLEAR. HIGHS 97-107. LOWS 59-69. SLOPE WINDS.
SUNDAY
CLEAR. HIGHS 95-105. LOWS 58-68. WEST WINDS 10 TO 15 MPH.
MONDAY
PARTLY CLOUDY. HIGHS 93-103. LOWS 58-68. WEST WINDS 10 TO
15 MPH.
TUESDAY
PARTLY CLOUDY. HIGHS 91-101. LOWS 57-67.
WEDNESDAY
SUNNY. HIGHS 89-99.
CAZ270-278-NVZ458-061415-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........55-65.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........30-40%.
* MID SLOPE........21-31%.
* 24 HR TREND......4% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 15 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......5600-6600 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........92-102.
* MID SLOPE........89-97.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........5-14%.
* MID SLOPE........7-12%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 9 TO 15
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......1400-1900 FT AGL INCREASING TO 8800-9800 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........52-62.
* MID SLOPE........56-66.
* MAX HUMIDITY.......
* VALLEYS..........28-38%.
* MID SLOPE........24-34%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 17 MPH WITH GUSTS TO 25 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5
MPH.
* RIDGE TOP........WEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT......5800-6800 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 10 TO 20 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........93-103.
* MID SLOPE........90-98.
* MIN HUMIDITY.......
* VALLEYS..........8-17%.
* MID SLOPE........10-16%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12
MPH WITH GUSTS TO 20 MPH LATE IN THE
AFTERNOON.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......200-500 FT AGL THEN 7800-8800 FT AGL IN THE
AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 54-64. WEST WINDS 9 TO 15 MPH UNTIL
EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 92-102. LOWS 50-60. WEST
WINDS 10 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
CLEAR. HIGHS 87-97. LOWS 49-59.
CAZ271-061415-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1254 PM PDT WED AUG 5 2026
..HEAT ADVISORY IN EFFECT UNTIL 8 AM PDT SUNDAY
TONIGHT
* SKY/WEATHER........CLEAR. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........44-54.
* MID SLOPE........52-62.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........39-49%.
* MID SLOPE........27-37%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS. GUSTS TO 25 MPH IN THE EVENING THEN
20 MPH LATE IN THE NIGHT.
* MIXING HEIGHT......3800-4800 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........87-97.
* MID SLOPE........85-95.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........9-19%.
* 24 HR TREND......LITTLE CHANGE.
* 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......1700-2200 FT AGL INCREASING TO 8000-9000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 15 TO 20 MPH IN
THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLEAR. PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........55-65.
* MAX HUMIDITY.......
* VALLEYS..........38-48%.
* MID SLOPE........29-39%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 30
MPH.
* MIXING HEIGHT......4300-5300 FT AGL IN THE EVENING THEN 200-500
FT AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........88-98.
* MID SLOPE........85-95.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING WEST 5 TO 10 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......200-500 FT AGL THEN 8700-9700 FT AGL IN THE
AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........POOR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
FRIDAY NIGHT
CLEAR. LOWS 50-60. WEST WINDS 8 TO 13 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
SATURDAY THROUGH MONDAY
CLEAR. HIGHS 87-97. LOWS 45-55. SOUTHWEST
WINDS 10 TO 15 MPH.
TUESDAY THROUGH WEDNESDAY
CLEAR. HIGHS 82-92. LOWS 44-54.
CAZ274-061415-
SOUTHERN MONO COUNTY-
1254 PM PDT WED AUG 5 2026
TONIGHT
* SKY/WEATHER........CLEAR. HAZE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........50-60.
* MID SLOPE........51-61.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........40-50%.
* MID SLOPE........25-35%.
* 24 HR TREND......5% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH IN
THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 10 TO 15 MPH. GUSTS TO 30 MPH UNTIL
EARLY MORNING.
* MIXING HEIGHT......6600-7600 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....WEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........84-94.
* MID SLOPE........81-91.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........8-18%.
* MID SLOPE........10-20%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......2800-3800 FT AGL INCREASING TO 11100-12100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. PATCHY
SMOKE.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........52-62.
* MID SLOPE........53-63.
* MAX HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........32-42%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHWEST 10 TO 15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT......6100-7100 FT AGL DECREASING TO 600 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........EXCELLENT DECREASING TO POOR AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........SUNNY. PATCHY SMOKE IN THE MORNING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........83-93.
* MID SLOPE........80-90.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........13-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 9100-10100 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHEAST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
52-62. DOWNSLOPE 2 TO 5 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
83-93. LOWS 51-61. SLOPE WINDS.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
82-92. LOWS 50-60. SLOPE WINDS.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 81-91. LOWS
49-59. SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 79-89.
LOWS 47-57.
WEDNESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 77-87.
.8 TO 14 DAY OUTLOOK FOR (THU AUG 13 THROUGH WED AUG 19)
ABOVE NORMAL TEMPERATURES AND LITTLE OR NO PRECIPITATION.
=
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