551  
FNUS55 KREV 121320  
FWFREV  
 
FIRE WEATHER PLANNING FORECAST  
NATIONAL WEATHER SERVICE RENO NV  
520 AM PST WED FEB 12 2025  
   
DISCUSSION  
 
COLD AND DRY WEATHER WITH LIGHT BREEZES WILL CONTINUE THROUGH  
TONIGHT. A SIGNIFICANT WINTER STORM WILL BRING PERIODS OF HEAVY  
SIERRA SNOW, RAIN AND LIGHT SNOW TO VALLEYS, AND GUSTY WINDS LATE  
TONIGHT THROUGH FRIDAY. DRIER CONDITIONS RETURN ON SATURDAY WITH  
A WEAK STORM POSSIBLE SUNDAY INTO 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  
 
NVZ420-130030-  
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,  
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........SUNNY THEN BECOMING PARTLY CLOUDY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........34-44.  
* MID SLOPE........31-41.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........21-31%.  
* MID SLOPE........23-33%.  
* 24 HR TREND......4% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING EAST 7 TO 12 MPH IN  
THE AFTERNOON.  
* RIDGE TOP........WEST WINDS 10 TO 15 MPH.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 1600-2600 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........18-28.  
* MID SLOPE........22-28.  
* 24 HR TREND......12 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........79-89%.  
* MID SLOPE........68-78%.  
* 24 HR TREND......23% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....EAST WINDS 8 TO 13 MPH. GUSTS TO 25 MPH AFTER  
MIDNIGHT.  
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 50  
MPH.  
* CHC WETTING RAIN...25%.  
* MIXING HEIGHT......1200-1700 FT AGL DECREASING TO 600-1000 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW AND RAIN.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........40-48.  
* MID SLOPE........36-46.  
* MIN HUMIDITY.......  
* VALLEYS..........46-56%.  
* MID SLOPE........52-62%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 9 TO 17 MPH INCREASING TO SOUTH  
15 TO 25 MPH IN THE AFTERNOON. GUSTS TO 35  
MPH.  
* RIDGE TOP........SOUTH WINDS 20 TO 30 MPH WITH GUSTS TO 65 MPH.  
* CHC WETTING RAIN...90%.  
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1300-1800 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH.  
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
SNOW AND RAIN IN THE EVENING, THEN SNOW LIKELY AND  
A CHANCE OF RAIN AFTER MIDNIGHT. LOWS 24-34. SOUTH WINDS 9 TO  
17 MPH.    
FRIDAY  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 40-48. LOWS  
14-24. WEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 39-49. LOWS 14-24. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. HIGHS  
44-54. LOWS 22-32. SLOPE WINDS.    
WASHINGTONS BIRTHDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND  
SNOW. HIGHS 42-52. LOWS 16-26.    
TUESDAY  
PARTLY CLOUDY. HIGHS 43-51.  
 
 
 
NVZ421-130030-  
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN  
LYON, AND WESTERN MINERAL COUNTIES-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........PARTLY CLOUDY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........36-44.  
* MID SLOPE........31-41.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........15-25%.  
* MID SLOPE........14-24%.  
* 24 HR TREND......6% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........WEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH UNTIL  
LATE AFTERNOON.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1500-2500 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........MARGINAL INCREASING TO FAIR IN THE AFTERNOON.  
   
TONIGHT  
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........18-28.  
* MID SLOPE........19-29.  
* 24 HR TREND......14 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........71-81%.  
* MID SLOPE........56-66%.  
* 24 HR TREND......21% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH BECOMING SOUTH 10 TO 15 MPH  
WITH GUSTS TO 30 MPH AFTER MIDNIGHT.  
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH  
INCREASING TO SOUTHWEST 30 TO 50 MPH WITH  
GUSTS TO 75 MPH.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......1200-1700 FT AGL DECREASING TO 600-900 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 15 TO 25 MPH  
AFTER MIDNIGHT.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW AND RAIN.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........39-49.  
* MID SLOPE........33-43.  
* MIN HUMIDITY.......  
* VALLEYS..........41-51%.  
* MID SLOPE........44-54%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO 40 MPH  
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 50  
MPH.  
* RIDGE TOP........SOUTH WINDS 30 TO 50 MPH WITH GUSTS TO 85 MPH.  
* CHC WETTING RAIN...90%.  
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 1400-1900 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH INCREASING TO SOUTHWEST 30  
TO 40 MPH IN THE AFTERNOON.  
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
RAIN IN THE EVENING. SNOW. LOWS 21-31. SOUTHWEST  
WINDS 10 TO 20 MPH.    
FRIDAY  
SNOW. HIGHS 37-47. LOWS 10-20. SOUTHWEST WINDS 10 TO  
15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 42-52. LOWS 10-20. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. HIGHS  
46-56. LOWS 20-30. SOUTHWEST WINDS 10 TO 15 MPH.    
WASHINGTONS BIRTHDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS  
42-52. LOWS 14-24.    
TUESDAY  
PARTLY CLOUDY. HIGHS 41-51.  
 
 
 
CAZ272-130030-  
GREATER LAKE TAHOE AND TRUCKEE AREA-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........PARTLY CLOUDY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........35-41.  
* MID SLOPE........29-39.  
* 24 HR TREND......4 DEGREES WARMER.  
* MIN HUMIDITY.......  
* VALLEYS..........31-41%.  
* MID SLOPE........27-37%.  
* 24 HR TREND......9% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........WEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH UNTIL  
LATE AFTERNOON.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1200-1700 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........19-29.  
* MID SLOPE........18-27.  
* 24 HR TREND......10 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........88-98%.  
* MID SLOPE........76-86%.  
* 24 HR TREND......36% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH BECOMING SOUTH 5 TO 10 MPH  
IN THE MORNING.  
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40  
MPH INCREASING TO 30 TO 45 MPH WITH GUSTS TO  
70 MPH IN THE MORNING.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......800-1300 FT AGL.  
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 20 TO 30 MPH  
AFTER MIDNIGHT.  
* VENTILATION........GOOD.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW AND RAIN.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........33-38.  
* MID SLOPE........31-39.  
* MIN HUMIDITY.......  
* VALLEYS..........70-80%.  
* MID SLOPE........64-74%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH,  
THEN SHIFTING TO THE SOUTHWEST 15 TO 20 MPH  
WITH GUSTS TO 40 MPH IN THE AFTERNOON.  
* RIDGE TOP........SOUTHWEST WINDS 30 TO 50 MPH WITH GUSTS TO 85  
MPH.  
* CHC WETTING RAIN...100%.  
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1400-1900 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTHWEST 25 TO 35 MPH INCREASING TO 35 TO 45  
MPH IN THE AFTERNOON.  
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
SNOW. LOWS 23-33. SOUTHWEST WINDS 10 TO 17 MPH  
INCREASING TO 15 TO 25 MPH IN THE LATE EVENING AND OVERNIGHT.    
FRIDAY  
SNOW. HIGHS 32-38. LOWS 11-21. SOUTHWEST WINDS 10 TO  
15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 39-45. LOWS 11-21. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. HIGHS 40-46. LOWS  
21-31. SOUTHWEST WINDS 10 TO 15 MPH.    
WASHINGTONS BIRTHDAY  
MOSTLY CLOUDY. CHANCE OF SNOW. HIGHS 37-43.  
LOWS 15-25.    
TUESDAY  
MOSTLY CLOUDY. HIGHS 38-44.  
 
 
 
NVZ423-130030-  
WEST HUMBOLDT BASIN IN PERSHING COUNTY-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........SUNNY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........33-40.  
* MID SLOPE........29-38.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........17-27%.  
* MID SLOPE........19-29%.  
* 24 HR TREND......7% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........WEST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 2000-3000 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLOUDY. CHANCE OF  
SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........13-23.  
* MID SLOPE........18-27.  
* 24 HR TREND......17 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........71-81%.  
* MID SLOPE........59-69%.  
* 24 HR TREND......7% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.  
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 35 MPH.  
* CHC WETTING RAIN...10%.  
* MIXING HEIGHT......1400-1900 FT AGL DECREASING TO 600-800 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW. RAIN IN THE AFTERNOON.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........39-47.  
* MID SLOPE........35-45.  
* MIN HUMIDITY.......  
* VALLEYS..........49-59%.  
* MID SLOPE........58-68%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH  
SHIFTING TO THE SOUTH 15 TO 20 MPH WITH GUSTS  
TO 35 MPH LATE IN THE AFTERNOON.  
* RIDGE TOP........SOUTH WINDS 20 TO 35 MPH. GUSTS TO 45 MPH  
INCREASING TO 65 MPH IN THE LATE MORNING AND  
AFTERNOON.  
* CHC WETTING RAIN...60%.  
* MIXING HEIGHT......700-1200 FT AGL.  
* TRANSPORT WINDS....SOUTH 15 TO 20 MPH INCREASING TO 20 TO 30 MPH  
IN THE AFTERNOON.  
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. LOWS  
24-33. SOUTH WINDS 9 TO 14 MPH.    
FRIDAY  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 41-47. LOWS  
16-26. SOUTHWEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 39-47. LOWS 16-26. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. HIGHS  
45-55. LOWS 24-32. SLOPE WINDS.    
WASHINGTONS BIRTHDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND  
SNOW. HIGHS 45-53. LOWS 20-30.    
TUESDAY  
PARTLY CLOUDY. HIGHS 45-53.  
 
 
 
NVZ429-130030-  
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........SUNNY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........35-43.  
* MID SLOPE........32-40.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........16-26%.  
* MID SLOPE........15-25%.  
* 24 HR TREND......6% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........NORTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......700-1200 FT AGL INCREASING TO 1900-2900 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING CLOUDY. CHANCE OF  
SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........18-28.  
* MID SLOPE........21-31.  
* 24 HR TREND......11 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........59-69%.  
* MID SLOPE........52-62%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH BECOMING EAST 9 TO 14 MPH  
WITH GUSTS TO 40 MPH AFTER MIDNIGHT.  
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 45  
MPH.  
* CHC WETTING RAIN...5%.  
* MIXING HEIGHT......1200-1700 FT AGL DECREASING TO 600-800 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW. RAIN IN THE AFTERNOON.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........41-51.  
* MID SLOPE........36-46.  
* MIN HUMIDITY.......  
* VALLEYS..........43-53%.  
* MID SLOPE........47-57%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 10 TO 15 MPH INCREASING TO SOUTH  
20 TO 30 MPH. GUSTS TO 55 MPH DECREASING TO 45  
MPH LATE IN THE AFTERNOON.  
* RIDGE TOP........SOUTH WINDS 25 TO 40 MPH. GUSTS TO 70 MPH  
INCREASING TO 75 MPH IN THE AFTERNOON.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1200-1700 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 25 TO 35 MPH.  
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. LOWS  
24-34. SOUTH WINDS 9 TO 17 MPH.    
FRIDAY  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 41-51. LOWS  
18-28. WEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 41-51. LOWS 18-28. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. HIGHS 50-60. LOWS 24-34. SLOPE WINDS.    
WASHINGTONS BIRTHDAY THROUGH TUESDAY  
PARTLY CLOUDY. HIGHS 45-55.  
LOWS 21-31.  
 
 
 
CAZ270-278-NVZ458-130030-  
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-  
NORTHERN WASHOE COUNTY-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........SUNNY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........28-38.  
* MID SLOPE........24-34.  
* 24 HR TREND......5 DEGREES WARMER.  
* MIN HUMIDITY.......  
* VALLEYS..........24-34%.  
* MID SLOPE........30-40%.  
* 24 HR TREND......4% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN  
THE MORNING.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 1400-1900 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........10-20.  
* MID SLOPE........14-24.  
* 24 HR TREND......7 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........83-93%.  
* MID SLOPE........78-88%.  
* 24 HR TREND......17% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....EAST WINDS 8 TO 13 MPH. GUSTS TO 25 MPH AFTER  
MIDNIGHT.  
* RIDGE TOP........SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 35  
MPH INCREASING TO SOUTH 20 TO 30 MPH WITH  
GUSTS TO 40 MPH IN THE MORNING.  
* CHC WETTING RAIN...20%.  
* MIXING HEIGHT......700-1200 FT AGL.  
* TRANSPORT WINDS....SOUTHEAST 10 TO 20 MPH.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW. RAIN IN THE AFTERNOON.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........34-44.  
* MID SLOPE........33-39.  
* MIN HUMIDITY.......  
* VALLEYS..........63-73%.  
* MID SLOPE........67-77%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 9 TO 17 MPH WITH GUSTS TO 40  
MPH.  
* RIDGE TOP........SOUTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 55  
MPH.  
* CHC WETTING RAIN...65%.  
* MIXING HEIGHT......800-1300 FT AGL.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH.  
* VENTILATION........GOOD.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
RAIN LIKELY IN THE EVENING. SNOW LIKELY. CHANCE  
OF RAIN AFTER MIDNIGHT. LOWS 26-33. SOUTH WINDS 9 TO 14 MPH.    
FRIDAY  
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. HIGHS 36-46. LOWS  
14-24. WEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 35-43. LOWS  
14-24. SLOPE WINDS.    
SUNDAY  
CLOUDY. CHANCE OF SNOW AND A SLIGHT CHANCE OF RAIN. HIGHS  
39-49. LOWS 24-33. SLOPE WINDS.    
WASHINGTONS BIRTHDAY  
MOSTLY CLOUDY. CHANCE OF SNOW AND A SLIGHT  
CHANCE OF RAIN. HIGHS 38-48. LOWS 17-27.    
TUESDAY  
MOSTLY CLOUDY. HIGHS 38-48.  
 
 
 
CAZ271-130030-  
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........SUNNY THEN BECOMING PARTLY CLOUDY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........32-42.  
* MID SLOPE........30-40.  
* 24 HR TREND......4 DEGREES WARMER.  
* MIN HUMIDITY.......  
* VALLEYS..........28-38%.  
* MID SLOPE........29-39%.  
* 24 HR TREND......LITTLE CHANGE.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH IN THE  
LATE MORNING AND AFTERNOON. GUSTS TO 20 MPH IN  
THE MORNING.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 1300-1800 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........FAIR.  
   
TONIGHT  
 
* SKY/WEATHER........SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........15-25.  
* MID SLOPE........18-28.  
* 24 HR TREND......12 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........86-96%.  
* MID SLOPE........82-92%.  
* 24 HR TREND......15% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.  
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH  
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 50  
MPH IN THE MORNING.  
* CHC WETTING RAIN...55%.  
* MIXING HEIGHT......700-1200 FT AGL.  
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW. RAIN IN THE AFTERNOON.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........35-43.  
* MID SLOPE........33-41.  
* MIN HUMIDITY.......  
* VALLEYS..........62-72%.  
* MID SLOPE........64-74%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.  
* RIDGE TOP........SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 60 MPH.  
* CHC WETTING RAIN...80%.  
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1300-1800 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH.  
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
SNOW AND RAIN. LOWS 25-35. SOUTH WINDS 9 TO  
14 MPH.    
FRIDAY  
SNOW AND RAIN. HIGHS 35-43. LOWS 13-23. SOUTHWEST WINDS  
10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 38-48. LOWS  
13-23. SLOPE WINDS.    
SUNDAY  
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. HIGHS 38-48. LOWS  
23-33. SLOPE WINDS.    
WASHINGTONS BIRTHDAY  
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN.  
HIGHS 37-45. LOWS 16-26.    
TUESDAY  
MOSTLY CLOUDY. HIGHS 40-48.  
 
 
 
CAZ274-130030-  
SOUTHERN MONO COUNTY-  
520 AM PST WED FEB 12 2025  
   
TODAY  
 
* SKY/WEATHER........PARTLY CLOUDY.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........35-45.  
* MID SLOPE........32-41.  
* 24 HR TREND......LITTLE CHANGE.  
* MIN HUMIDITY.......  
* VALLEYS..........12-22%.  
* MID SLOPE........14-24%.  
* 24 HR TREND......5% DRIER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.  
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.  
* CHC WETTING RAIN...0%.  
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1600-2100 FT AGL  
IN THE AFTERNOON.  
* TRANSPORT WINDS....LIGHT WINDS.  
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.  
   
TONIGHT  
 
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW AFTER MIDNIGHT.  
* CHANCE OF THUNDER..0%.  
* MIN TEMPERATURE....  
* VALLEYS..........16-26.  
* MID SLOPE........16-26.  
* 24 HR TREND......12 DEGREES WARMER.  
* MAX HUMIDITY.......  
* VALLEYS..........78-88%.  
* MID SLOPE........65-75%.  
* 24 HR TREND......18% WETTER.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH BECOMING SOUTHEAST 10 TO 15  
MPH IN THE LATE EVENING AND OVERNIGHT.  
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH INCREASING TO SOUTHWEST  
20 TO 35 MPH WITH GUSTS TO 60 MPH AFTER  
MIDNIGHT.  
* CHC WETTING RAIN...40%.  
* MIXING HEIGHT......1200-1700 FT AGL DECREASING TO 600-1000 FT AGL  
AFTER MIDNIGHT.  
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH INCREASING TO 15 TO 25 MPH  
AFTER MIDNIGHT.  
* VENTILATION........FAIR.  
   
THURSDAY  
 
* SKY/WEATHER........SNOW AND RAIN.  
* CHANCE OF THUNDER..0%.  
* MAX TEMPERATURE....  
* VALLEYS..........35-45.  
* MID SLOPE........31-40.  
* MIN HUMIDITY.......  
* VALLEYS..........44-54%.  
* MID SLOPE........52-62%.  
* 20-FOOT WINDS......  
* VALLEYS/SLOPE....SOUTHEAST WINDS 10 TO 17 MPH WITH GUSTS TO 30  
MPH INCREASING TO SOUTH 20 TO 30 MPH WITH  
GUSTS TO 45 MPH.  
* RIDGE TOP........SOUTH WINDS 30 TO 45 MPH WITH GUSTS TO 85 MPH.  
* CHC WETTING RAIN...95%.  
* MIXING HEIGHT......1000-1500 FT AGL.  
* TRANSPORT WINDS....SOUTH 20 TO 30 MPH INCREASING TO 30 TO 40 MPH  
IN THE AFTERNOON.  
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
 
   
EXTENDED  
   
THURSDAY NIGHT  
RAIN IN THE EVENING. SNOW. LOWS 17-27. SOUTH WINDS  
15 TO 25 MPH SHIFTING TO THE SOUTHWEST 9 TO 18 MPH IN THE LATE  
EVENING AND OVERNIGHT.    
FRIDAY  
SNOW. HIGHS 33-43. LOWS 8-18. WEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY CLOUDY. HIGHS 41-51. LOWS 8-18. SLOPE WINDS.    
SUNDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. HIGHS  
43-53. LOWS 18-28. SLOPE WINDS.    
WASHINGTONS BIRTHDAY  
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS  
40-50. LOWS 11-21.    
TUESDAY  
PARTLY CLOUDY. HIGHS 39-49.  
 
 
 
.8 TO 14 DAY OUTLOOK FOR (WED FEB 19 THROUGH TUE FEB 25)  
ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.  
 
=  
 
 
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