624  
FNUS55 KREV 131118  
FWFREV  
 
FIRE WEATHER PLANNING FORECAST  
NATIONAL WEATHER SERVICE RENO NV  
418 AM PDT SAT APR 13 2024  
   
DISCUSSION
 
 
AN ACTIVE PATTERN REMAINS THIS WEEKEND AS A SLOW MOVING AREA  
OF LOW PRESSURE BRINGS PERIODS OF STRONG AND GUSTY WINDS WITH RAIN  
AND MOUNTAIN SNOW, ISOLATED THUNDERSTORMS, AND COOLER TEMPERATURES.  
MOSTLY DRY CONDITIONS AND SEASONABLE TEMPERATURES ARE LOOKING  
MORE LIKELY FOR 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  
 
NVZ420-140100-  
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,  
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-  
418 AM PDT SAT APR 13 2024  
 
...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 11 PM PDT THIS  
EVENING...  
   
TODAY
 
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........60-70.  
* MID SLOPE........54-64.  
* 24 HR TREND......5 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........16-26%.  
* MID SLOPE........22-32%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 13 TO 20 MPH  
WITH GUSTS TO 35 MPH.  
* RIDGE TOP........SOUTH WINDS 15 TO 30 MPH. GUSTS TO 45 MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...10%.  
* MIXING HEIGHT......2600-3600 FT AGL INCREASING TO 9100-10100 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH 25 TO 35 MPH IN THE  
AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN CHANCE OF SHOWERS AFTER  
MIDNIGHT.  
* MIN TEMPERATURE....  
* VALLEYS..........27-37.  
* MID SLOPE........26-33.  
* 24 HR TREND......10 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........75-85%.  
* MID SLOPE........62-72%.  
* 24 HR TREND......10% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 13 TO 20 MPH WITH GUSTS TO 35 MPH  
DECREASING TO 9 TO 15 MPH IN THE LATE EVENING  
AND OVERNIGHT.  
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...30%.  
* MIXING HEIGHT......3400-4400 FT AGL DECREASING TO 1000-1500 FT  
AGL AFTER MIDNIGHT.  
* TRANSPORT WINDS....WEST 15 TO 25 MPH.  
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........44-54.  
* MID SLOPE........40-50.  
* MIN HUMIDITY.......  
* VALLEYS..........29-39%.  
* MID SLOPE........33-43%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................1.  
* CHC WETTING RAIN...20%.  
* MIXING HEIGHT......2900-3900 FT AGL INCREASING TO 6700-7700 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
* VENTILATION........VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS 28-38. NORTHWEST WINDS 9 TO 14 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS 55-65. LOWS 28-38. NORTHWEST WINDS  
10 TO 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 62-72. LOWS 33-43. NORTHWEST WINDS  
10 TO 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 65-75. LOWS 37-47. NORTH WINDS  
10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 68-78. LOWS 39-49.  
 

 
 
NVZ421-140100-  
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN  
LYON, AND WESTERN MINERAL COUNTIES-  
418 AM PDT SAT APR 13 2024  
 
...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 11 PM PDT THIS  
EVENING...  
   
TODAY
 
 
* SKY/WEATHER........PARTLY CLOUDY. PATCHY BLOWING DUST IN THE  
AFTERNOON. SNOW SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........54-64.  
* MID SLOPE........46-56.  
* 24 HR TREND......6 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........15-25%.  
* MID SLOPE........15-25%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH  
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 45  
MPH.  
* RIDGE TOP........SOUTH WINDS 30 TO 45 MPH WITH GUSTS TO 65 MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...35%.  
* MIXING HEIGHT......2500-3500 FT AGL INCREASING TO 7800-8800 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH INCREASING TO 30 TO 40 MPH  
IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........PARTLY CLOUDY. PATCHY BLOWING DUST IN THE  
EVENING. SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING.  
* MIN TEMPERATURE....  
* VALLEYS..........19-29.  
* MID SLOPE........25-35.  
* 24 HR TREND......11 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........64-74%.  
* MID SLOPE........54-64%.  
* 24 HR TREND......6% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35  
MPH DECREASING TO 9 TO 15 MPH WITH GUSTS TO 30  
MPH IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP........SOUTHWEST WINDS 15 TO 35 MPH WITH GUSTS TO 55  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...20%.  
* MIXING HEIGHT......2700-3700 FT AGL DECREASING TO 1100-1600 FT  
AGL AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH DECREASING TO 15 TO 20  
MPH AFTER MIDNIGHT.  
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........44-54.  
* MID SLOPE........37-47.  
* MIN HUMIDITY.......  
* VALLEYS..........25-35%.  
* MID SLOPE........26-36%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING NORTHWEST 5 TO 10  
MPH LATE IN THE AFTERNOON.  
* RIDGE TOP........SOUTH WINDS 20 TO 30 MPH WITH GUSTS TO 40 MPH  
SHIFTING TO THE SOUTHWEST 10 TO 15 MPH IN THE  
AFTERNOON.  
* HAINES INDEX.......3.  
* LAL................1.  
* CHC WETTING RAIN...25%.  
* MIXING HEIGHT......3900-4900 FT AGL INCREASING TO 5900-6900 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
* VENTILATION........EXCELLENT INCREASING TO VERY GOOD IN THE  
AFTERNOON.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS 21-31.  
NORTHWEST WINDS 9 TO 14 MPH.    
MONDAY
 
CLEAR. HIGHS 53-63. LOWS 21-31. NORTHWEST WINDS 10 TO  
15 MPH.    
TUESDAY
 
CLEAR. HIGHS 62-72. LOWS 28-38. WEST WINDS AROUND 10 MPH.   
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 65-75. LOWS 32-42. NORTHWEST WINDS  
10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 66-76. LOWS 34-44.  
 

 
 
CAZ272-140100-  
GREATER LAKE TAHOE AND TRUCKEE AREA-  
418 AM PDT SAT APR 13 2024  
   
TODAY
 
 
* SKY/WEATHER........SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........45-53.  
* MID SLOPE........41-51.  
* 24 HR TREND......8 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........44-54%.  
* MID SLOPE........40-50%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTH 10 TO 20 MPH  
WITH GUSTS TO 30 MPH.  
* RIDGE TOP........SOUTH WINDS 20 TO 35 MPH WITH GUSTS TO 65 MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...25%.  
* MIXING HEIGHT......3900-4900 FT AGL.  
* TRANSPORT WINDS....SOUTH 15 TO 20 MPH INCREASING TO 25 TO 35 MPH  
IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* MIN TEMPERATURE....  
* VALLEYS..........20-30.  
* MID SLOPE........17-27.  
* 24 HR TREND......11 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........81-91%.  
* MID SLOPE........77-87%.  
* 24 HR TREND......7% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 15 MPH WITH GUSTS TO 25 MPH  
DECREASING TO 8 TO 13 MPH AFTER MIDNIGHT.  
* RIDGE TOP........SOUTHWEST WINDS 15 TO 30 MPH WITH GUSTS TO 50  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................1.  
* CHC WETTING RAIN...10%.  
* MIXING HEIGHT......1500-2000 FT AGL.  
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH DECREASING TO 10 TO 15 MPH.  
* VENTILATION........VERY GOOD DECREASING TO GOOD AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........37-43.  
* MID SLOPE........32-42.  
* MIN HUMIDITY.......  
* VALLEYS..........52-62%.  
* MID SLOPE........46-56%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING  
BECOMING SOUTHWEST 9 TO 14 MPH IN THE AFTERNOON.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 40 MPH.  
* HAINES INDEX.......2-3.  
* LAL................1.  
* CHC WETTING RAIN...15%.  
* MIXING HEIGHT......2400-3400 FT AGL INCREASING TO 5900-6900 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE  
EVENING. LOWS 21-31. WEST WINDS 8 TO 13 MPH IN THE EVENING BECOMING  
DOWNSLOPE 2 TO 5 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS 49-55. LOWS 21-31. SLOPE WINDS.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 55-63. LOWS 28-38. SLOPE WINDS.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 59-65. LOWS 32-42. EAST WINDS  
AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 59-67. LOWS 33-43.  
 

 
 
NVZ423-140100-  
WEST HUMBOLDT BASIN IN PERSHING COUNTY-  
418 AM PDT SAT APR 13 2024  
 
...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 11 PM PDT THIS  
EVENING...  
   
TODAY
 
 
* SKY/WEATHER........PARTLY CLOUDY. PATCHY BLOWING DUST IN THE  
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........69-75.  
* MID SLOPE........64-74.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........10-16%.  
* MID SLOPE........10-18%.  
* 24 HR TREND......6% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....EAST WINDS 7 TO 12 MPH INCREASING TO SOUTH 20 TO  
35 MPH WITH GUSTS TO 45 MPH.  
* RIDGE TOP........SOUTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 45  
MPH SHIFTING TO THE SOUTH 25 TO 40 MPH WITH  
GUSTS TO 60 MPH IN THE AFTERNOON.  
* HAINES INDEX.......3.  
* LAL................2.  
* CHC WETTING RAIN...5%.  
* MIXING HEIGHT......2400-3400 FT AGL INCREASING TO 9700-10700 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH INCREASING TO SOUTH 30  
TO 40 MPH IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........PATCHY BLOWING DUST IN THE EVENING. CHANCE OF  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN SHOWERS LIKELY AFTER  
MIDNIGHT.  
* MIN TEMPERATURE....  
* VALLEYS..........33-38.  
* MID SLOPE........30-37.  
* 24 HR TREND......9 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........72-82%.  
* MID SLOPE........68-78%.  
* 24 HR TREND......13% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH  
BECOMING SOUTHWEST 9 TO 16 MPH WITH GUSTS TO  
25 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 60  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...40%.  
* MIXING HEIGHT......5600-6600 FT AGL DECREASING TO 1300-1800 FT  
AGL AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTH 30 TO 40 MPH BECOMING SOUTHWEST 15 TO 20  
MPH AFTER MIDNIGHT.  
* VENTILATION........EXCELLENT DECREASING TO GOOD AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........47-57.  
* MID SLOPE........43-53.  
* MIN HUMIDITY.......  
* VALLEYS..........22-32%.  
* MID SLOPE........26-36%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHWEST WINDS 9 TO 14 MPH WITH GUSTS TO 30  
MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................1.  
* CHC WETTING RAIN...25%.  
* MIXING HEIGHT......2900-3900 FT AGL INCREASING TO 6500-7500 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.  
* VENTILATION........EXCELLENT.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE EVENING. LOWS 29-36.  
NORTHWEST WINDS 8 TO 13 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS 58-64. LOWS 29-39. NORTHWEST WINDS  
10 TO 15 MPH.    
TUESDAY THROUGH WEDNESDAY
 
PARTLY CLOUDY. HIGHS 65-73. LOWS 33-43.  
NORTH WINDS 10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 70-80. LOWS 39-49.  
 

 
 
NVZ429-140100-  
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-  
418 AM PDT SAT APR 13 2024  
 
...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 11 PM PDT THIS  
EVENING...  
   
TODAY
 
 
* SKY/WEATHER........SUNNY. PATCHY BLOWING DUST IN THE AFTERNOON.  
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........64-74.  
* MID SLOPE........59-69.  
* 24 HR TREND......6 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........10-18%.  
* MID SLOPE........12-20%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH  
INCREASING TO SOUTH 25 TO 40 MPH WITH GUSTS TO  
55 MPH IN THE AFTERNOON.  
* RIDGE TOP........SOUTH WINDS 30 TO 45 MPH WITH GUSTS TO 80 MPH.  
* HAINES INDEX.......3.  
* LAL................2.  
* CHC WETTING RAIN...5%.  
* MIXING HEIGHT......2400-3400 FT AGL INCREASING TO 7700-8700 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO 30 TO 40 MPH  
IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........PATCHY BLOWING DUST IN THE EVENING. SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN CHANCE OF SHOWERS AFTER  
MIDNIGHT.  
* MIN TEMPERATURE....  
* VALLEYS..........29-39.  
* MID SLOPE........27-37.  
* 24 HR TREND......9 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........72-82%.  
* MID SLOPE........55-65%.  
* 24 HR TREND......23% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 20 TO 40 MPH WITH GUSTS TO 55 MPH  
BECOMING WEST 9 TO 14 MPH WITH GUSTS TO 25  
MPH.  
* RIDGE TOP........SOUTHWEST WINDS 25 TO 45 MPH WITH GUSTS TO 80  
MPH DECREASING TO 15 TO 20 MPH WITH GUSTS TO  
35 MPH IN THE MORNING.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......5200-6200 FT AGL DECREASING TO 1100-1600 FT  
AGL AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTH 25 TO 35 MPH BECOMING WEST 10 TO 15 MPH  
AFTER MIDNIGHT.  
* VENTILATION........EXCELLENT DECREASING TO GOOD AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........49-59.  
* MID SLOPE........45-55.  
* MIN HUMIDITY.......  
* VALLEYS..........22-32%.  
* MID SLOPE........25-35%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12  
MPH IN THE AFTERNOON.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 30  
MPH.  
* HAINES INDEX.......3.  
* LAL................1.  
* CHC WETTING RAIN...10%.  
* MIXING HEIGHT......2600-3600 FT AGL INCREASING TO 7400-8400 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.  
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE  
EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 31-40.  
NORTHWEST WINDS 9 TO 15 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS 56-66. LOWS 31-41. NORTHWEST WINDS  
10 TO 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 65-73. LOWS 34-44. NORTHWEST WINDS  
AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 67-77. LOWS 40-50. NORTH WINDS  
10 TO 15 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 71-81. LOWS 40-50.  
 

 
 
CAZ270-278-NVZ458-140100-  
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-  
NORTHERN WASHOE COUNTY-  
418 AM PDT SAT APR 13 2024  
   
TODAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS. SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........59-69.  
* MID SLOPE........56-66.  
* 24 HR TREND......4 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........15-25%.  
* MID SLOPE........17-27%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHEAST 9 TO 15  
MPH WITH GUSTS TO 25 MPH EARLY IN THE  
AFTERNOON, THEN INCREASING TO SOUTH 12 TO 18  
MPH WITH GUSTS TO 35 MPH LATE IN THE  
AFTERNOON.  
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 35  
MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO  
45 MPH IN THE AFTERNOON.  
* HAINES INDEX.......3.  
* LAL................3.  
* CHC WETTING RAIN...35%.  
* MIXING HEIGHT......2100-3100 FT AGL INCREASING TO 7800-8800 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH INCREASING TO 25 TO 35  
MPH IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........SNOW SHOWERS AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SHOWERS LIKELY AFTER  
MIDNIGHT.  
* MIN TEMPERATURE....  
* VALLEYS..........29-38.  
* MID SLOPE........27-34.  
* 24 HR TREND......7 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........84-94%.  
* MID SLOPE........85-95%.  
* 24 HR TREND......13% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 15 TO 25 MPH WITH GUSTS TO 40 MPH  
DECREASING TO 9 TO 15 MPH WITH GUSTS TO 25 MPH  
IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.  
* HAINES INDEX.......2-3.  
* LAL................3.  
* CHC WETTING RAIN...60%.  
* MIXING HEIGHT......5000-6000 FT AGL DECREASING TO 1000-1500 FT  
AGL AFTER MIDNIGHT.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
* VENTILATION........EXCELLENT DECREASING TO FAIR AFTER MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........SNOW SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........40-50.  
* MID SLOPE........36-46.  
* MIN HUMIDITY.......  
* VALLEYS..........46-56%.  
* MID SLOPE........55-65%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 9 TO 14 MPH WITH GUSTS TO 25 MPH.  
* RIDGE TOP........WEST WINDS 10 TO 20 MPH WITH GUSTS TO 40 MPH.  
* HAINES INDEX.......2.  
* LAL................1.  
* CHC WETTING RAIN...60%.  
* MIXING HEIGHT......2100-3100 FT AGL INCREASING TO 3400-4400 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....WEST 15 TO 20 MPH.  
* VENTILATION........VERY GOOD.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS 29-37. WEST WINDS 9 TO 14 MPH.    
MONDAY
 
PARTLY CLOUDY. HIGHS 51-61. LOWS 27-37. NORTHWEST WINDS  
10 TO 15 MPH.    
TUESDAY THROUGH WEDNESDAY
 
PARTLY CLOUDY. HIGHS 60-70. LOWS 27-37.  
NORTH WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 64-74. LOWS 34-44.    
FRIDAY
 
PARTLY CLOUDY. HIGHS 67-77.  
 

 
 
CAZ271-140100-  
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-  
418 AM PDT SAT APR 13 2024  
   
TODAY
 
 
* SKY/WEATHER........SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........48-58.  
* MID SLOPE........45-55.  
* 24 HR TREND......8 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........40-50%.  
* MID SLOPE........42-52%.  
* 24 HR TREND......13% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 9 TO 14 MPH.  
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 35 MPH.  
* HAINES INDEX.......2-3.  
* LAL................3.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......2600-3600 FT AGL INCREASING TO 3500-4500 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SNOW SHOWERS AFTER MIDNIGHT.  
* MIN TEMPERATURE....  
* VALLEYS..........26-35.  
* MID SLOPE........24-31.  
* 24 HR TREND......10 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........87-97%.  
* MID SLOPE........83-93%.  
* 24 HR TREND......14% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH IN THE EVENING BECOMING  
DOWNSLOPE 2 TO 5 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 40  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................3.  
* CHC WETTING RAIN...60%.  
* MIXING HEIGHT......900-1400 FT AGL.  
* TRANSPORT WINDS....WEST 10 TO 15 MPH.  
* VENTILATION........FAIR.  
   
SUNDAY
 
 
* SKY/WEATHER........SNOW SHOWERS IN THE MORNING, THEN SHOWERS  
LIKELY IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........35-45.  
* MID SLOPE........33-43.  
* MIN HUMIDITY.......  
* VALLEYS..........52-62%.  
* MID SLOPE........58-68%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....WEST WINDS 8 TO 13 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30  
MPH.  
* HAINES INDEX.......2-3.  
* LAL................1.  
* CHC WETTING RAIN...50%.  
* MIXING HEIGHT......2000-3000 FT AGL INCREASING TO 2800-3800 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 10 TO 20 MPH.  
* VENTILATION........VERY GOOD.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING. LOWS 26-35. WEST WINDS 7 TO 12 MPH IN THE EVENING BECOMING  
DOWNSLOPE 2 TO 5 MPH.    
MONDAY
 
CLEAR. HIGHS 49-59. LOWS 25-35. SLOPE WINDS.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 56-66. LOWS 25-35. NORTH WINDS 10 TO  
15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 60-70. LOWS 31-41. NORTHEAST WINDS  
AROUND 10 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 64-74. LOWS 34-44.  
 

 
 
CAZ274-140100-  
SOUTHERN MONO COUNTY-  
418 AM PDT SAT APR 13 2024  
 
...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 11 PM PDT THIS  
EVENING...  
   
TODAY
 
 
* SKY/WEATHER........SUNNY THEN BECOMING MOSTLY CLOUDY. SNOW SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE....  
* VALLEYS..........47-57.  
* MID SLOPE........43-53.  
* 24 HR TREND......8 DEGREES COOLER.  
* MIN HUMIDITY.......  
* VALLEYS..........16-26%.  
* MID SLOPE........22-32%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 5 TO 10 MPH INCREASING TO 20 TO 30  
MPH WITH GUSTS TO 45 MPH.  
* RIDGE TOP........SOUTH WINDS 30 TO 50 MPH. GUSTS TO 75 MPH.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...40%.  
* MIXING HEIGHT......1600-2600 FT AGL INCREASING TO 5200-6200 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO 30 TO 35 MPH  
IN THE AFTERNOON.  
* VENTILATION........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER........MOSTLY CLOUDY THEN CLEARING OVERNIGHT. SHOWERS  
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING.  
* MIN TEMPERATURE....  
* VALLEYS..........15-25.  
* MID SLOPE........16-26.  
* 24 HR TREND......12 DEGREES COOLER.  
* MAX HUMIDITY.......  
* VALLEYS..........66-76%.  
* MID SLOPE........55-65%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHWEST WINDS 13 TO 20 MPH WITH GUSTS TO 35  
MPH DECREASING TO 7 TO 12 MPH WITH GUSTS TO 20  
MPH.  
* RIDGE TOP........SOUTHWEST WINDS 25 TO 40 MPH WITH GUSTS TO 80  
MPH DECREASING TO 15 TO 25 MPH WITH GUSTS TO  
45 MPH IN THE MORNING.  
* HAINES INDEX.......2-3.  
* LAL................2.  
* CHC WETTING RAIN...35%.  
* MIXING HEIGHT......1700-2700 FT AGL DECREASING TO 600-700 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH DECREASING TO SOUTHWEST  
10 TO 20 MPH.  
* VENTILATION........EXCELLENT DECREASING TO MARGINAL AFTER  
MIDNIGHT.  
   
SUNDAY
 
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
* MAX TEMPERATURE....  
* VALLEYS..........39-49.  
* MID SLOPE........35-45.  
* MIN HUMIDITY.......  
* VALLEYS..........26-36%.  
* MID SLOPE........29-39%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 7 TO 12 MPH IN THE MORNING BECOMING  
UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH. GUSTS TO 35 MPH IN THE  
MORNING.  
* HAINES INDEX.......3.  
* LAL................1.  
* CHC WETTING RAIN...20%.  
* MIXING HEIGHT......2700-3700 FT AGL INCREASING TO 5200-6200 FT  
AGL IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.  
* VENTILATION........VERY GOOD.  
 
   
EXTENDED
 
   
SUNDAY NIGHT
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
20-30. WEST WINDS 5 TO 10 MPH IN THE EVENING BECOMING DOWNSLOPE 2 TO  
5 MPH, THEN BECOMING NORTHWEST 7 TO 12 MPH AFTER MIDNIGHT.    
MONDAY
 
CLEAR. HIGHS 49-59. LOWS 20-30. NORTHWEST WINDS 10 TO  
15 MPH.    
TUESDAY
 
CLEAR. HIGHS 58-68. LOWS 25-35. WEST WINDS AROUND 10 MPH.   
WEDNESDAY
 
CLEAR. HIGHS 62-72. LOWS 31-41. NORTHWEST WINDS AROUND  
10 MPH.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS 62-72. LOWS 33-43.  
 

 
 
.8 TO 14 DAY OUTLOOK FOR (SAT APR 20 THROUGH FRI APR 26)  
ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.  
 
=  

 
 
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