FNUS56  KSTO 232303
 FWFSTO
 
 FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
 NATIONAL WEATHER SERVICE SACRAMENTO
 300 PM PST MON NOV 23 2009
 
 .DISCUSSION...
 RIDGE OF HIGH PRESSURE OVER THE AREA THROUGH EARLY THURSDAY WITH DRY 
 AND MILD WEATHER.  SURFACE HIGH PRESSURE OVER THE GREAT BASIN AND 
 THERMAL TROUGH OVER CALIFORNIA BRINGING NORTH TO EAST WINDS OVER THE 
 AREA ESPECIALLY IN NORTH TO EAST ORIENTED CANYONS AND PASSES IN THE 
 WEST SLOPE OF THE SIERRA.  A COLD FRONT AND ASSOCIATED TROUGH WILL 
 MOVE THROUGH THE NORTHERN PORTION OF THE AREA LATE THURSDAY INTO 
 FRIDAY BRINGING A CHANCE OF RAIN AND SNOW ALONG WITH SOUTHERLY 
 WINDS. RIDGE OF HIGH PRESSURE BUILDS IN BEHIND THIS SYSTEM BRINGING 
 DRY WEATHER LATE FRIDAY INTO THE WEEKEND.  
 
 
 CAZ264-242130-
 LAKE COUNTY PORTION OF LAKE-NAPA-SONOMA UNIT-
 300 PM PST MON NOV 23 2009
 
 .TONIGHT...
 SKY/WEATHER.........MOSTLY CLEAR. PATCHY VALLEY FOG AFTER MIDNIGHT. 
 MIN TEMPERATURE.....36-42. 
 MAX HUMIDITY........48-68 PERCENT LOWER ELEVATIONS...AND 35-50 
                     PERCENT HIGHER ELEVATIONS. 
 20-FOOT WINDS....... 
     VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 13 MPH. 
     RIDGES/UPR SLOPES....NORTHEAST WINDS 10 TO 20 MPH WITH LOCAL     
                          GUSTS UP TO 35 MPH. 
 CHC OF WETTING RAIN.0 PERCENT. 
 
 .TUESDAY...
 SKY/WEATHER.........SUNNY. PATCHY VALLEY FOG EARLY IN THE MORNING. 
 MAX TEMPERATURE.....61-71. 
 MIN HUMIDITY........19-35 PERCENT. 
 20-FOOT WINDS....... 
     VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 6 MPH.     
     RIDGES/UPR SLOPES....NORTH WINDS 7 TO 15 MPH IN THE MORNING      
                          BECOMING VARIABLE 3 TO 8 MPH. 
 CHC OF WETTING RAIN.0 PERCENT. 
 
 .TUESDAY NIGHT...
 SKY/WEATHER.........CLEAR. 
 MIN TEMPERATURE.....39-45. 
 MAX HUMIDITY........58-74 PERCENT LOWER ELEVATIONS...AND 46-66 
                     PERCENT HIGHER ELEVATIONS. 
 20-FOOT WINDS....... 
     VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 3 TO 7 MPH BECOMING    
                          NORTH 5 TO 10 MPH AFTER MIDNIGHT.           
     RIDGES/UPR SLOPES....NORTH WINDS 8 TO 16 MPH WITH LOCAL GUSTS UP 
                          TO 28 MPH. 
 CHC OF WETTING RAIN.0 PERCENT. 
 
 .WEDNESDAY...
 SKY/WEATHER.........SUNNY. 
 MAX TEMPERATURE.....60-71. 
 MIN HUMIDITY........21-36 PERCENT. 
 20-FOOT WINDS....... 
     VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 6 MPH. 
     RIDGES/UPR SLOPES....VARIABLE 3 TO 8 MPH. 
 CHC OF WETTING RAIN.0 PERCENT. 
 
 
 

 
 ...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
 .THANKSGIVING DAY...MOSTLY CLEAR. SLIGHT CHANCE OF RAIN AND SNOW. 
 LOWS IN THE 30S. HIGHS 45 TO 55. SOUTH WINDS 10 TO 20 MPH. 
 .FRIDAY...MOSTLY CLOUDY. RAIN LIKELY AND A CHANCE OF SNOW SHOWERS 
 THURSDAY NIGHT INTO EARLY FRIDAY. LOWS IN THE 30S. HIGHS IN THE 40S. 
 NORTH WINDS 10 TO 20 MPH WITH LOCAL GUSTS 30 TO 40 MPH. 
 .SATURDAY...PARTLY CLOUDY. LOWS 25 TO 35. HIGHS 45 TO 55.
 NORTHEAST WINDS 10 TO 20 MPH WITH LOCAL GUSTS 30 TO 40 MPH.