491
FNUS76 KSTO 230356
FWSSTO
SPOT FORECAST FOR WHITTLE VMP...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
856 PM PDT THU OCT 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0838 PDT ON OCTOBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOSTLY CLOUDY SKIES WITH SOME PATCHY MORNING FOG IN THE MORNING HOURS
DUE TO RECENT RAINS AND COOLER TEMPERATURES. CLOUD COVERAGE WILL
BE HEAVIEST IN THE MORNING, THEN BY THE AFTERNOON/EVENING CLEARING
WITH SUNSHINE BREAKING THROUGH MID-LEVEL CLOUDS AS OUR WEATHER SYSTEM
LEAVES THE AREA. LESS THAN A 10% CHANCE OF A LINGERING RAIN SHOWER
FRIDAY MORNING, WITH LITTLE TO NO ADDITIONAL ACCUMULATIONS EXPECTED.
NORTHWEST WINDS WILL BEGIN TO DEVELOP IN THE AFTERNOON AND EVENING
AS WELL WITH AN OCCASIONAL GUST UP TO 20 MPH. EAST TO SOUTHWEST WINDS
DEVELOP ON SATURDAY.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG LATE IN THE MORNING.
MAX TEMPERATURE.....62-66.
MIN HUMIDITY........62-66 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHWEST 5 TO 10 MPH WITH
GUSTS TO AROUND 22 MPH IN THE AFTERNOON.
RIDGETOP...........NORTHWEST 5 TO 13 MPH.
MIXING HEIGHT.......3600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 13 MPH.
CWR.................7 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
TIME (PDT) 8 AM 11 AM 2 PM 5 PM
SKY COVER.......MCLDY PCLDY MCLEAR MCLEAR
CWR.............10 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............52 57 63 63
RH..............88 83 67 68
SL/VL WIND......N 0G5 NW 2G8 NW 9G21 NW 9G21
RIDGETOP WIND...N 5 NW 9 NW 13 NW 13
MIX HGT (FT)....1100 3000 3600 1400
TRANSPORT WIND..N 5 NW 9 NW 13 NW 13
FRIDAY NIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....45-49.
MAX HUMIDITY........68-72 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS UP TO 8 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTHEAST UP TO 5
MPH OVERNIGHT SHIFTING TO THE EAST UP TO 6 MPH.
RIDGETOP...........NORTH 9 TO 13 MPH SHIFTING TO THE EAST 6 TO 8
MPH LATE IN THE EVENING, THEN SHIFTING TO THE
SOUTHEAST AROUND 7 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTH 9 TO 13 MPH SHIFTING TO THE EAST 6 TO 8
MPH LATE IN THE EVENING, THEN SHIFTING TO THE
SOUTHEAST AROUND 7 MPH EARLY IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6 PM 9 PM MIDNGT 3 AM
SKY COVER.......MCLEAR CLEAR CLEAR CLEAR
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............62 55 52 50
RH..............69 72 69 67
SL/VL WIND......NW 8G17 N 5G10 NE 5G8 E 6G10
RIDGETOP WIND...NW 13 N 9 NE 6 E 8
MIX HGT (FT)....1400 400 400 400
TRANSPORT WIND..NW 13 N 9 NE 6 E 8
SATURDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....66-70.
MIN HUMIDITY........42-46 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS UP TO 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST UP TO 5
MPH LATE IN THE AFTERNOON BECOMING LIGHT.
RIDGETOP...........SOUTHEAST 6 TO 7 MPH SHIFTING TO THE SOUTH 5 TO
6 MPH LATE IN THE MORNING.
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 6 TO 7 MPH SHIFTING TO THE SOUTH 5 TO
6 MPH LATE IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6 AM 9 AM NOON 3 PM
SKY COVER.......CLEAR CLEAR CLEAR CLEAR
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............47 52 64 68
RH..............70 62 48 45
SL/VL WIND......E 5G9 E 2G8 SW 2G10 SW 5G12
RIDGETOP WIND...SE 7 SE 6 S 6 S 5
MIX HGT (FT)....400 800 2700 3300
TRANSPORT WIND..SE 7 SE 6 S 6 S 5
FORECASTER...JW
REQUESTED BY...MATT
TYPE OF REQUEST...PRESCRIBED
.TAG 2624148.2/STO
.DELDT 10/23/26
.FORMATTERVERSION 2.0.0
.EMAIL MATTHEW.HARRISON@FIRE.CA.GOV
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