437
FNUS76 KSTO 171221
FWSSTO
SPOT FORECAST FOR D54 PILE BURN...U.S. FOREST SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
421 AM PST SAT JAN 17 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 PST ON JANUARY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE CONTINUES TO DOMINATE THE WEATHER PATTERN RESULTING
IN SIMILAR CONDITIONS AS YESTERDAY. WINDS WILL BE LIGHT AND
TERRAIN DRIVEN, WITH RIDGETOP GUSTS 5 TO 10 MPH IN THE MORNING.
DAYTIME HUMIDITIES WILL REMAIN THROUGH THE WEEKEND AND INTO EARLY
NEXT WEEK BEFORE THE RIDGE BEGINS TO WEAKEN SLIGHTLY. THIS WILL
ALLOW A SLIGHT IMPROVEMENT IN DAYTIME AND OVERNIGHT HUMIDITIES MID
TO LATE NEXT WEEK. A WEAK SYSTEM IS EXPECTED TO MOVE IN BY LATE
WEEK, BUT CONFIDENCE IN EVEN LIGHT PRECIPITATION THROUGH THE
WEEKEND IS LOW AT THIS POINT. LONGER RANGE MODELS SHOW A POTENTIAL
RETURN TO MORE ACTIVE WEATHER TOWARD THE END OF JANUARY.
REST OF TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....62-66.
MIN HUMIDITY........25-29 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS UP TO 5 MPH LATE IN THE MORNING
BECOMING LIGHT.
RIDGETOP...........NORTHEAST AROUND 10 MPH SHIFTING TO THE EAST
AROUND 3 MPH LATE IN THE MORNING, THEN SHIFTING
TO THE SOUTHWEST AROUND 2 MPH EARLY IN THE
AFTERNOON SHIFTING TO THE NORTHEAST LATE IN THE
AFTERNOON.
MIXING HEIGHT.......1600 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE EAST
AROUND 3 MPH LATE IN THE MORNING, THEN SHIFTING
TO THE SOUTHWEST AROUND 2 MPH EARLY IN THE
AFTERNOON SHIFTING TO THE NORTHEAST LATE IN THE
AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PST) 9 AM 11 AM 1 PM 3 PM 5 PM
SKY COVER.......CLEAR CLEAR CLEAR MCLEAR MCLEAR
CWR.............0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0
TEMP............49 59 63 62 56
RH..............39 33 27 25 38
SL/VL WIND......N 5 E 2 S 2 S 2 NE 2
SL/VL WIND GUST.8 7 5 3 3
RIDGETOP WIND...S 5 S 5 S 5 S 5 S 5
MIX HGT (FT)....1100 1400 1600 1600 1000
TRANSPORT WIND..NE 10 E 3 SW 2 SW 2 NE 2
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY THEN BECOMING MOSTLY
CLOUDY.
MIN TEMPERATURE.....42-46.
MAX HUMIDITY........44-48 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHEAST UP TO 6 MPH
EARLY IN THE EVENING.
RIDGETOP...........NORTHEAST 2 TO 9 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 2 TO 9 MPH.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......PCLDY PCLDY PCLDY MCLDY PCLDY MCLDY
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............50 48 47 46 45 45
RH..............43 45 46 43 43 37
SL/VL WIND......NE 2 N 5 NE 5 NE 5 N 6 N 6
SL/VL WIND GUST.6 7 7 7 8 8
RIDGETOP WIND...S 5 SW 5 SW 10 SW 10 W 10 W 10
MIX HGT (FT)....1000 1000 1100 1100 1000 1100
TRANSPORT WIND..NE 2 NE 7 NE 7 NE 7 NE 9 N 9
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....61-65.
MIN HUMIDITY........27-31 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHEAST WINDS UP TO 6 MPH EARLY IN THE
MORNING BECOMING LIGHT.
RIDGETOP...........NORTH 3 TO 9 MPH SHIFTING TO THE WEST AROUND 3
MPH EARLY IN THE AFTERNOON, THEN SHIFTING TO
THE NORTH LATE IN THE AFTERNOON.
MIXING HEIGHT.......2300 FT AGL.
TRANSPORT WINDS.....NORTH 3 TO 8 MPH SHIFTING TO THE WEST EARLY IN
THE AFTERNOON, THEN SHIFTING TO THE NORTH LATE
IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PST) 6 AM 9 AM NOON 3 PM
SKY COVER.......MCLDY MCLDY MCLDY PCLDY
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............44 50 60 61
RH..............39 35 33 38
SL/VL WIND......N 6G8 NE 5G7 N 2G7 W 2G5
RIDGETOP WIND...NW 15 NW 10 NW 10 NW 10
MIX HGT (FT)....1100 1000 1000 2300
TRANSPORT WIND..N 9 N 8 N 3 W 3
FORECASTER...EK
REQUESTED BY...BRADLEY WALKER
TYPE OF REQUEST...PRESCRIBED
.TAG 2600384.0/STO
.DELDT 01/17/26
.FORMATTERVERSION 2.0.0
.EMAIL BRADLEY.WALKER@USDA.GOV,DAVID.REYNOLDS@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page