249
FNUS55 KREV 281931
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
1231 PM PDT TUE APR 28 2026
DISCUSSION
LIGHT RAIN AND MOUNTAIN SNOW SHOWERS ARE DEVELOPING ALONG THE SIERRA CREST
TODAY WITH A 15-25% CHANCE FOR THUNDER AND LIGHTNING. SHOWERS AND
THUNDERSTORMS DECREASE IN LIKELIHOOD AND COVERAGE WEDNESDAY. A
WARMING AND DRYING TREND WILL BE IN PLACE INTO THE START OF THE
WEEKEND WITH TEMPERATURES WARMING NEAR 10 DEGREES ABOVE SEASON
AVERAGE. COOLER, SHOWERY WEATHER MAY RETURN LATE THIS WEEKEND, BUT
CONFIDENCE REMAINS LOW.
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
NVZ420-291700-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........29-39.
* MID SLOPE........32-42.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........68-78%.
* MID SLOPE........58-68%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......4000-5000 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........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........59-69.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........11-21%.
* MID SLOPE........16-26%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 6200-7200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........36-45.
* MAX HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........41-51%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......4400-5400 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.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........66-75.
* MID SLOPE........61-71.
* MIN HUMIDITY.......
* VALLEYS..........10-20%.
* MID SLOPE........15-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 9 TO 14
MPH IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 6900-7900 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO EXCELLENT IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. NORTH WINDS 9 TO 14 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 71-81. LOWS 34-44. SLOPE WINDS.
SATURDAY
MOSTLY CLOUDY. HIGHS 70-80. LOWS 38-48. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 68-78. LOWS
37-47. WEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
64-74. LOWS 36-46.
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 64-74.
NVZ421-291700-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........24-34.
* MID SLOPE........33-43.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........69-79%.
* MID SLOPE........48-58%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING EAST 10 TO 15 MPH AFTER
MIDNIGHT.
* MIXING HEIGHT......3100-4100 FT AGL DECREASING TO 600-900 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........MOSTLY SUNNY. SLIGHT CHANCE OF SNOW SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........59-69.
* MID SLOPE........52-62.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........14-24%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 5 TO 10
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......800-1300 FT AGL INCREASING TO 5500-6500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........27-37.
* MID SLOPE........36-46.
* MAX HUMIDITY.......
* VALLEYS..........54-64%.
* MID SLOPE........35-45%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 14 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......4100-5100 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..........61-71.
* MID SLOPE........54-64.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........14-24%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 9 TO 15 MPH IN
THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 6300-7300 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 29-39. NORTH WINDS 9 TO 16 MPH
BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 67-77. LOWS 29-39. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 68-78. LOWS 32-42. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
HIGHS 64-74. LOWS 31-41. SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 59-69. LOWS 29-39.
CAZ272-291700-
GREATER LAKE TAHOE AND TRUCKEE AREA-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........25-35.
* MID SLOPE........26-35.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........86-96%.
* MID SLOPE........70-80%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHEAST 10 TO 15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT......1900-2900 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........55-62.
* MID SLOPE........51-61.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........29-39%.
* MID SLOPE........26-36%.
* 24 HR TREND......7% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 5200-6200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........30-40.
* MID SLOPE........31-40.
* MAX HUMIDITY.......
* VALLEYS..........73-83%.
* MID SLOPE........52-62%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......2500-3500 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..........57-65.
* MID SLOPE........53-63.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........22-32%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHEAST 10 TO 15 MPH IN
THE AFTERNOON.
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 5700-6700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 33-43. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 62-70. LOWS 33-43. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 60-68.
LOWS 36-46. SOUTHWEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
57-64. LOWS 34-44. SLOPE WINDS.
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 52-60. LOWS 31-41.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 50-60.
NVZ423-291700-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........33-43.
* MID SLOPE........37-46.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........46-56%.
* MID SLOPE........30-40%.
* 24 HR TREND......14% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......4400-5400 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........68-74.
* MID SLOPE........62-72.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........14-19%.
* MID SLOPE........15-22%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 7800-8800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO VERY GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........35-45.
* MID SLOPE........38-47.
* MAX HUMIDITY.......
* VALLEYS..........47-57%.
* MID SLOPE........33-43%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......5000-6000 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 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..........70-76.
* MID SLOPE........64-74.
* MIN HUMIDITY.......
* VALLEYS..........13-18%.
* MID SLOPE........14-20%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTHEAST WINDS 9 TO 14 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 7400-8400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 37-47. NORTH WINDS 9 TO 14 MPH.
FRIDAY
CLEAR. HIGHS 75-81. LOWS 37-47. SLOPE WINDS.
SATURDAY
MOSTLY CLOUDY. HIGHS 77-83. LOWS 42-52. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 76-82. LOWS
43-53. SLOPE WINDS.
MONDAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
71-78. LOWS 42-52.
NVZ429-291700-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........32-42.
* MID SLOPE........36-46.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........55-65%.
* MID SLOPE........35-45%.
* 24 HR TREND......11% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......4400-5400 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........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........60-70.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........12-20%.
* MID SLOPE........15-23%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS BECOMING NORTHWEST 10 TO 15 MPH IN
THE LATE MORNING AND AFTERNOON.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 7200-8200 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........34-44.
* MID SLOPE........38-48.
* MAX HUMIDITY.......
* VALLEYS..........43-53%.
* MID SLOPE........35-45%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 9 TO 14 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......4900-5900 FT AGL DECREASING TO 600-800 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO MARGINAL AFTER
MIDNIGHT.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........66-76.
* MID SLOPE........62-72.
* MIN HUMIDITY.......
* VALLEYS..........13-19%.
* MID SLOPE........14-20%.
* 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......600-1100 FT AGL INCREASING TO 7800-8800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 36-46. NORTH WINDS 9 TO 15 MPH UNTIL
EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 72-82. LOWS 36-46. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 74-84. LOWS 39-49. SOUTHWEST WINDS
10 TO 20 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 72-82. LOWS
41-51. WEST WINDS 10 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS
66-76. LOWS 39-49.
CAZ270-278-NVZ458-291700-
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........29-39.
* MID SLOPE........32-42.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........65-75%.
* MID SLOPE........50-60%.
* 24 HR TREND......13% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......4100-5100 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.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........63-73.
* MID SLOPE........59-67.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........14-24%.
* MID SLOPE........18-26%.
* 24 HR TREND......5% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 6500-7500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO VERY GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........32-42.
* MID SLOPE........34-44.
* MAX HUMIDITY.......
* VALLEYS..........54-64%.
* MID SLOPE........46-56%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....NORTH WINDS 7 TO 12 MPH UNTIL EARLY MORNING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......4300-5300 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 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..........65-75.
* MID SLOPE........62-70.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........17-23%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHEAST 8 TO 13
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 6500-7500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING CLEAR.
LOWS 36-46. NORTHEAST WINDS 8 TO 13 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. HIGHS 70-80. LOWS 36-46. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 69-79.
LOWS 38-48. SOUTHWEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. HIGHS 69-79. LOWS
38-48. NORTHWEST WINDS 10 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 65-75. LOWS 38-48.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 64-74.
CAZ271-291700-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
1231 PM PDT TUE APR 28 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR. SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...10%.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........28-38.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........79-89%.
* MID SLOPE........69-79%.
* 24 HR TREND......8% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......2800-3800 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTHWEST 10 TO 15 MPH.
* VENTILATION........VERY GOOD DECREASING TO POOR AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........SUNNY.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MAX TEMPERATURE....
* VALLEYS..........61-71.
* MID SLOPE........58-68.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........21-31%.
* MID SLOPE........21-31%.
* 24 HR TREND......10% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 6300-7300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...0%.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........32-42.
* MAX HUMIDITY.......
* VALLEYS..........66-76%.
* MID SLOPE........51-61%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......3700-4700 FT AGL DECREASING TO 600-700 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 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..........64-74.
* MID SLOPE........62-70.
* MIN HUMIDITY.......
* VALLEYS..........18-28%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 6300-7300 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....NORTHEAST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 34-44. DOWNSLOPE 2 TO 5 MPH.
FRIDAY
PARTLY CLOUDY. HIGHS 69-77. LOWS 34-44. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 66-74. LOWS 36-46. SOUTH WINDS
10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
64-74. LOWS 35-45. SLOPE WINDS.
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 60-68. LOWS 34-44.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. HIGHS 58-68.
CAZ274-291700-
SOUTHERN MONO COUNTY-
1231 PM PDT TUE APR 28 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..........23-33.
* MID SLOPE........24-34.
* 24 HR TREND......4 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........76-86%.
* MID SLOPE........60-70%.
* 24 HR TREND......LITTLE CHANGE.
* 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 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........MOSTLY SUNNY. SLIGHT CHANCE OF SNOW SHOWERS IN THE
AFTERNOON.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MAX TEMPERATURE....
* VALLEYS..........54-64.
* MID SLOPE........50-60.
* 24 HR TREND......6 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........16-26%.
* MID SLOPE........20-30%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* MIXING HEIGHT......1000-1500 FT AGL INCREASING TO 4700-5700 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLEAR.
* CHANCE OF THUNDER..0%.
* CHC WETTING RAIN...5%.
* MIN TEMPERATURE....
* VALLEYS..........26-36.
* MID SLOPE........27-37.
* MAX HUMIDITY.......
* VALLEYS..........56-66%.
* MID SLOPE........42-52%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT......3700-4700 FT AGL DECREASING TO 600-1000 FT AGL
AFTER MIDNIGHT.
* TRANSPORT WINDS....NORTH 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..........57-67.
* MID SLOPE........53-63.
* MIN HUMIDITY.......
* VALLEYS..........13-23%.
* MID SLOPE........17-27%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTH 5 TO 10 MPH
WITH GUSTS TO 20 MPH LATE IN THE AFTERNOON.
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
* MIXING HEIGHT......1200-1700 FT AGL INCREASING TO 6200-7200 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS....NORTH 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
EXTENDED
THURSDAY NIGHT
CLEAR. LOWS 28-38. NORTH WINDS 9 TO 14 MPH IN THE
EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
FRIDAY
CLEAR. HIGHS 62-72. LOWS 28-38. SLOPE WINDS.
SATURDAY
PARTLY CLOUDY. HIGHS 62-72. LOWS 31-41. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. HIGHS 59-69.
LOWS 30-40. SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS 54-64. LOWS 28-38.
.8 TO 14 DAY OUTLOOK FOR (WED MAY 6 THROUGH TUE MAY 12)
ABOVE NORMAL TEMPERATURES AND PRECIPITATION.
=
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