055
FNUS76 KSTO 090842
FWSSTO
SPOT FORECAST FOR COLFAX WASTEWATER VMP...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
142 AM PDT TUE JUN 9 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON JUNE 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOSTLY SUNNY WITH DRY CONDITIONS AS DIURNAL WIND PATTERN TAKES OVER
THE WEATHER PATTERN LATER THIS WEEK. DAYTIME HUMIDITY VALUES WILL BE
IN THE MID TO LOW TEENS ON FRIDAY, WITH SLIGHT IMPROVEMENTS INTO THE
UPPER TEENS - LOW 20S SATURDAY. HIGH PRESSURE IS FORECAST TO DEVELOP
OFFSHORE, LOCKING IN THE DRY AND HOT CONDITIONS LATER THIS WEEK. WINDS
AT THE SURFACE SHOULD REMAIN BELOW THE 10 MPH SUSTAINED THRESHOLD IN
THE MORNING AND EARLY AFTERNOON, WITH SOUTHWEST WINDS AROUND NOON. SOUTH
TO WEST WINDS IN THE EVENING MAY ALLOW FOR SMOKE DRIFT INTO COLFAX, THEN
DURING NIGHT WITH LOWER MIXING HEIGHTS AND LIGHT/ALMOST STAGNANT WINDS
COULD CREATE HAZE/SMOKY CONDITIONS IN THE TOWN.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....93-97.
MIN HUMIDITY........15-19 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST UP TO 6 MPH LATE
IN THE MORNING.
RIDGETOP...........NORTH 1 TO 3 MPH INCREASING TO NORTHWEST AROUND
12 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....EAST AROUND 6 MPH SHIFTING TO THE WEST 6 TO 7
MPH LATE IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
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............73 79 85 90 93 94 94 95 95 95
RH..............37 32 26 21 19 19 19 18 17 17
SL/VL WIND DIR..E E E SW SW SW W W W W
SL/VL WIND SPD..1 1 1 5 5 5 6 6 6 5
SL/VL WIND GUST.3 3 3 9 9 9 12 12 12 10
RIDGE WIND DIR..N NE NE NE NE NE N N NW NW
RIDGE WIND SPD..1 1 2 2 2 2 3 3 3 12
MIX HGT (KFT)...0.3 0.3 0.3 3.8 3.8 3.8 5.1 5.1 5.1 5.1
TRANSP WIND DIR.E E E W W W W W W W
TRANSP WIND SPD.6 6 6 6 6 6 7 7 7 7
FRIDAY NIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....62-66.
MAX HUMIDITY........43-47 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS UP TO 5 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........NORTHWEST 5 TO 14 MPH SHIFTING TO THE WEST
AROUND 3 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 7 MPH SHIFTING TO THE EAST 7
TO 8 MPH LATE 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.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
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............93 91 88 84 80 76 73 71 69 67 66 66
RH..............19 22 25 29 32 36 39 42 44 45 45 45
SL/VL WIND DIR..W W S S S E E E E E E E
SL/VL WIND SPD..5 5 1 1 1 1 1 1 2 2 2 2
SL/VL WIND GUST.10 10 3 3 3 5 5 5 5 5 5 5
RIDGE WIND DIR..NW NW NW N N N N NW NW W W W
RIDGE WIND SPD..13 13 14 14 14 14 13 10 8 7 5 3
MIX HGT (KFT)...5.1 5.1 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.4
TRANSP WIND DIR.W W SW SW SW E E E E E E E
TRANSP WIND SPD.7 7 7 7 7 7 7 7 8 8 8 8
SATURDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....95-99.
MIN HUMIDITY........17-21 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST UP TO 6 MPH LATE
IN THE MORNING.
RIDGETOP...........SOUTHWEST 3 TO 8 MPH SHIFTING TO THE SOUTH 7 TO
8 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 8 MPH SHIFTING TO THE SOUTHWEST
AROUND 7 MPH LATE IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
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............68 71 75 80 86 90 92 94 94 95 95 94
RH..............45 43 40 34 28 24 22 21 21 20 19 19
SL/VL WIND DIR..E E N N N SW SW SW W W W W
SL/VL WIND SPD..2 2 0 0 0 5 5 5 6 6 6 5
SL/VL WIND GUST.5 5 2 2 2 9 9 9 12 12 12 10
RIDGE WIND DIR..W W SW SW SW SW SW SW S S S S
RIDGE WIND SPD..3 5 5 6 7 8 8 8 8 8 7 7
MIX HGT (KFT)...0.4 0.4 0.6 0.6 0.6 3.0 3.0 3.0 4.6 4.6 4.6 4.8
TRANSP WIND DIR.E E E E E SW SW SW W W W W
TRANSP WIND SPD.8 8 5 5 5 7 7 7 7 7 7 7
FORECASTER...JW
REQUESTED BY...CLINT SIEBERT
TYPE OF REQUEST...PRESCRIBED
.TAG 2614758.1/STO
.DELDT 06/09/26
.FORMATTERVERSION 2.0.0
.EMAIL CLINTON.SIEBERT@FIRE.CA.GOV
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