694
FNUS76 KSTO 180232
FWSSTO
SPOT FORECAST FOR SLY PARK VMP...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
732 PM PDT SAT OCT 17 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON OCTOBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
PATTERN CHANGE EXPECTED FOR MUCH OF THE WEEK AHEAD WITH COOLER
TEMPERATURES AND UNSETTLED WEATHER. MONDAY WILL FEATURE MOSTLY
DRY AND SUNNY CONDITIONS WITH COOLER TEMPERATURES AND BREEZY
SOUTHWEST WINDS. PRECIPITATION CHANCES WILL ENTER THE FORECAST
TUESDAY AFTERNOON WITH A SLIGHT CHANCE FOR SHOWERS, AND THEN BETTER
CHANCES ARE FAVORED WEDNESDAY INTO THURSDAY. STORM TOTAL PRECIPITATION
LATE TUESDAY THROUGH THURSDAY IS CURRENTLY FORECAST BETWEEN 0.10"-0.20".
THERE IS AN 80% CHANCE OF AT LEAST A TENTH OF AN INCH OF RAIN FROM
TUESDAY PM-THURSDAY. CONFIDENCE IS HIGH ON THE OVERALL PATTERN CHANGE,
MEDIUM ON PRECIPITATION AMOUNTS AND TIMING. RH RECOVERIES WILL SIGNIFICANTLY
IMPROVE OVER THE NEXT FEW DAYS.
MONDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....64-68.
MIN HUMIDITY........34-40 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH LATE
IN THE MORNING WITH GUSTS 14 TO 17 MPH.
RIDGETOP...........SOUTHWEST 8 TO 18 MPH.
MIXING HEIGHT.......INCREASING TO 4200 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 9 MPH INCREASING TO 13 TO 20 MPH
LATE IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR MCR MCR MCR MCR MCR MCR PC
CWR.............0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0
TEMP............53 58 62 64 65 65 65 64 61
RH..............46 43 40 38 38 38 40 43 47
SL/VL WIND DIR..SE SE SW SW SW SW SW SW SW
SL/VL WIND SPD..2 2 6 7 7 8 8 7 3
SL/VL WIND GUST.7 7 16 16 16 17 17 17 10
RIDGE WIND DIR..SE SE SW SW SW SW SW SW SW
RIDGE WIND SPD..9 9 15 16 17 18 18 18 13
MIX HGT (KFT)...0.5 0.5 3.6 3.6 3.6 4.2 4.2 4.2 2.9
TRANSP WIND DIR.S S S S S S S S S
TRANSP WIND SPD.9 9 20 20 20 20 20 20 13
MONDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
MIN TEMPERATURE.....44-48.
MAX HUMIDITY........65-69 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........SOUTHWEST TO EAST 5 TO 13 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 13 MPH SHIFTING TO THE SOUTHEAST 5
TO 7 MPH EARLY IN THE EVENING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC PC PC MC MC MC MC MC MC MC
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............58 54 51 50 49 49 49 49 49 49 48 48
RH..............53 59 64 67 67 67 66 64 62 60 59 58
SL/VL WIND DIR..SW SW SE SE SE SE SE SE E E E N
SL/VL WIND SPD..3 3 2 2 2 1 1 1 1 1 1 0
SL/VL WIND GUST.10 10 6 6 6 3 3 3 3 3 3 3
RIDGE WIND DIR..SW SW S S S S S S E E E N
RIDGE WIND SPD..13 13 5 5 5 5 5 5 7 7 7 7
MIX HGT (KFT)...2.9 2.9 0.3 0.3 0.3 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S SE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.13 13 5 5 5 5 5 5 7 7 7 7
TUESDAY
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....63-67.
MIN HUMIDITY........41-45 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........EAST TO SOUTHWEST 8 TO 16 MPH.
MIXING HEIGHT.......INCREASING TO 4700 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 7 TO 16 MPH SHIFTING TO THE SOUTHWEST
7 TO 12 MPH LATE IN THE AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF THUNDER...LESS THAN 5 PERCENT.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC MC MC MC MC MC MC MC MC MC MC MC
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............47 47 48 51 56 60 62 63 63 63 63 59
RH..............58 59 58 54 50 46 44 43 44 45 47 53
SL/VL WIND DIR..N N E E E SW SW SW SW SW SW W
SL/VL WIND SPD..2 2 2 2 2 3 3 3 3 3 3 1
SL/VL WIND GUST.3 3 6 6 6 8 8 8 10 10 10 5
RIDGE WIND DIR..E E E E E SW SW SW SW SW SW W
RIDGE WIND SPD..8 8 10 10 12 16 16 16 12 12 12 8
MIX HGT (KFT)...0.5 0.5 0.4 0.4 0.4 4.7 4.7 4.7 4.4 4.4 4.4 2.2
TRANSP WIND DIR.SE SE E E E S S S SW SW SW SW
TRANSP WIND SPD.7 7 8 8 8 16 16 16 12 12 12 7
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND THUNDERSTORMS. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 60S. LIGHT WINDS.
THURSDAY
MOSTLY CLOUDY. RAIN LIKELY, SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S. LIGHT WINDS.
FRIDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS IN THE LOWER 40S. HIGHS
AROUND 60. LIGHT WINDS.
FORECASTER...KH
REQUESTED BY...JOSH VICKERS
TYPE OF REQUEST...PRESCRIBED
.TAG 2623776.0/STO
.DELDT 10/18/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSH.VICKERS@FIRE.CA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page