028  
FNUS76 KSTO 071850  
FWSSTO  
 
SPOT FORECAST FOR LATOUR DSF RX...CAL FIRE  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
1150 AM PDT TUE OCT 7 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON OCTOBER 08.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
ONSHORE FLOW WITH BREEZY SOUTHWEST WINDS WED. INTO FRIDAY EVENING  
WITH GUSTS UP TO 25 MPH AND STRONGEST IN THE AFTERNOON. HUMIDITY  
VALUES TREND HIGHER OVER THE NEXT SEVERAL DAYS WITH A SLIGHT  
UPTICK WEDNESDAY AND MORE EARNESTLY LATER IN THE WORK WEEK.  
SLIGHT CHANCE OF WETTING RAINS THURSDAY MORNING AHEAD OF A WEATHER  
SYSTEM BRINGING WETTING RAINS, BREEZY WINDS, AND COOLER  
TEMPERATURES THURSDAY NIGHT INTO FRIDAY NIGHT.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....58-62.  
MIN HUMIDITY........34-38 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH SHIFTING TO THE  
SOUTHWEST WITH GUSTS AROUND 21 MPH LATE IN  
THE MORNING.  
RIDGETOP...........SOUTHWEST 12 TO 16 MPH INCREASING TO 18 TO 24  
MPH LATE IN THE AFTERNOON.  
MIXING HEIGHT.......6800 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 12 TO 24 MPH.  
CWR.................2 PERCENT.  
CHANCE OF THUNDER...3 PERCENT.  
 
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......CLR CLR CLR CLR CLR CLR MCR MCR MCR PC  
CWR.............0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0  
TEMP............49 51 56 58 59 59 60 59 59 58  
RH..............48 43 37 35 37 36 37 37 37 40  
SL/VL WIND DIR..S S SW SW SW SW SW SW SW SW  
SL/VL WIND SPD..8 10 10 9 10 10 10 10 10 9  
SL/VL WIND GUST.14 17 18 17 18 20 21 21 21 18  
RIDGE WIND DIR..SW SW SW SW SW SW SW SW S S  
RIDGE WIND SPD..12 12 12 21 21 21 24 24 24 17  
MIX HGT (KFT)...0.8 0.8 0.8 5.2 5.2 5.2 6.8 6.8 6.8 2.6  
TRANSP WIND DIR.S S S SW SW SW SW SW SW S  
TRANSP WIND SPD.12 12 12 21 21 21 24 24 24 17  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS  
EARLY IN THE MORNING.  
MIN TEMPERATURE.....40-44.  
MAX HUMIDITY........82-86 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH.  
RIDGETOP...........SOUTH 12 TO 17 MPH.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 17 MPH.  
CWR.................11 PERCENT.  
CHANCE OF THUNDER...3 PERCENT.  
 
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY COVER.......PC PC PC PC PC MCR MCR MCR PC PC PC PC  
CWR.............0 0 0 0 0 0 0 0 0 0 0 10  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............56 53 50 49 48 48 47 47 46 45 44 43  
RH..............46 53 57 60 62 65 68 72 76 80 83 85  
SL/VL WIND DIR..SW SW S S S S S S S S S S  
SL/VL WIND SPD..9 9 8 8 8 9 9 9 9 9 9 9  
SL/VL WIND GUST.18 18 14 14 14 16 16 16 14 14 14 15  
RIDGE WIND DIR..S S S S S S S SW SW S S S  
RIDGE WIND SPD..17 17 12 12 12 13 13 13 13 13 13 14  
MIX HGT (KFT)...2.6 2.6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.17 17 12 12 12 13 13 13 13 13 13 14  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN  
THE MORNING.  
MAX TEMPERATURE.....47-51.  
MIN HUMIDITY........70-74 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 8 TO 13 MPH.  
RIDGETOP...........SOUTH 10 TO 16 MPH INCREASING TO 18 TO 23 MPH  
LATE IN THE MORNING.  
MIXING HEIGHT.......3700 FT AGL.  
TRANSPORT WINDS.....SOUTH 14 TO 25 MPH INCREASING TO 20 TO 25 MPH  
LATE IN THE MORNING.  
CWR.................11 PERCENT.  
CHANCE OF THUNDER...2 PERCENT.  
 
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......PC PC PC PC PC PC PC PC PC PC PC MC  
CWR.............10 10 10 10 10 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............42 42 42 43 45 46 47 48 48 48 48 47  
RH..............86 86 85 82 78 74 72 72 72 72 72 74  
SL/VL WIND DIR..S S S S S SW SW SW SW SW SW SW  
SL/VL WIND SPD..9 9 12 12 12 13 13 13 10 10 10 9  
SL/VL WIND GUST.15 15 18 18 18 22 22 22 22 22 22 18  
RIDGE WIND DIR..S S S S S S S S S S S S  
RIDGE WIND SPD..14 14 16 16 16 24 24 24 25 25 25 20  
MIX HGT (KFT)...0.1 0.1 0.5 0.5 0.5 2.8 2.8 2.8 3.7 3.7 3.7 2.8  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.14 14 16 16 16 24 24 24 25 25 25 20  
   
FORECAST DAYS 3 THROUGH 5
 
   
FRIDAY
 
 
MOSTLY CLOUDY. SHOWERS LIKELY. LOWS IN THE UPPER 30S. HIGHS IN  
THE LOWER 40S. SOUTH WINDS AROUND 10 MPH.    
SATURDAY
 
 
MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 30S. HIGHS IN THE MID 40S. SOUTHEAST WINDS AROUND 6 MPH.    
SUNDAY
 
 
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 40S. NORTHEAST WINDS AROUND 8 MPH.  
 

 
FORECASTER...DA  
REQUESTED BY...DAN CHENOWETH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2523067.0/STO  
.DELDT 10/07/25  
.FORMATTERVERSION 2.0.0  
.EMAIL DAN.CHENOWETH@FIRE.CA.GOV  
 
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