614
FNUS76 KSTO 182129
FWSSTO
SPOT FORECAST FOR WILLIAMS II VMP...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
129 PM PST SUN JAN 18 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 PST ON JANUARY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
DRY CONDITIONS PERSIST THIS WEEK. BREEZY NORTH-NORTHWEST
SLOPE/VALLEY WINDS ARE EXPECTED EARLY MONDAY MORNING, WITH LIGHT
EAST-SOUTHEAST IN THE LATE MORNING AND AFTERNOON. MINIMUM RH
VALUES WILL BE AROUND 18-30% ON MONDAY, LOWEST HUMIDITY VALUES
EXPECTED DURING THE OVERNIGHT AND EARLY MORNING PERIOD PRIOR TO
0900 IGNITION TIME DUE TO OFFSHORE FLOW. GRADUAL IMPROVEMENT IN
DAYTIME AND OVERNIGHT HUMIDITIES EXPECTED MID TO LATE WEEK. THERE
IS A SLIGHT POTENTIAL (10-15% CHANCE) FOR LIGHT RAIN OVER THE
WEEKEND.
MARTIN LUTHER KING JR DAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....62-66.
MIN HUMIDITY........18-30 PERCENT. LOWEST HUMIDITY VALUES EXPECTED
DURING THE OVERNIGHT AND MORNING HOURS.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 7 MPH SHIFTING TO THE
EAST-SOUTHEAST 5 TO 6 MPH LATE MORNING INTO THE
AFTERNOON, THEN SHIFTING TO THE NORTHWEST UP TO 5 MPH
LATE IN THE AFTERNOON. GUSTS UP TO 15 MPH DURING
THE EARLY MORNING HOURS.
RIDGETOP...........NORTH TO NORTHWEST 5 TO 9 MPH.
MIXING HEIGHT.......1100 FT AGL.
TRANSPORT WINDS.....NORTH TO NORTHWEST 5 TO 9 MPH.
CWR.................0 PERCENT.
TIME (PST) 9 AM 11 AM 1 PM 3 PM 5 PM
SKY COVER.......MCLEAR MCLEAR CLEAR MCLEAR MCLEAR
CWR.............0 0 0 0 0
TEMP............53 59 62 63 59
RH..............27 27 25 25 22
SL/VL WIND......NW 7 ESE 6 ESE 6 ESE 5 NW 5
SL/VL WIND GUST.12 10 9 7 8
RIDGETOP WIND...NW 9 N 7 N 6 N 6 NW 5
MIX HGT (FT)....200 700 1100 1100 300
TRANSPORT WIND..NW 9 N 7 N 6 N 6 NW 5
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 50S.
LIGHT WINDS.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S.
NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID 50S.
NORTHWEST WINDS AROUND 6 MPH.
FORECASTER...IDS
REQUESTED BY...JAN SMUTZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2600346.0/STO
.DELDT 01/18/26
.FORMATTERVERSION 2.0.0
.EMAIL TIM.BRADY@FIRE.CA.GOV,SHUECCSTAFF@FIRE.CA.GOV,JAN.SMUTZ@FIRE.CA.GOV,DUSTY.GYVES@FIRE.CA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page