091
FNUS76 KMTR 250051
FWSMTR
SPOT FORECAST FOR SWITCHBACK 1...CAL FIRE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
551 PM PDT THU SEP 24 2026
FORECAST IS BASED ON IGNITION TIME OF 1800 PDT ON SEPTEMBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EXPECT VERY GOOD RH RECOVERY OVERNIGHT WITH LESS
COVERAGE OF STRATUS/FOG FRIDAY MORNING IN THE WAKE OF A RELATIVELY
WEAK COLD FRONT. COOLER TEMPERATURES ON FRIDAY WILL HELP RH RETENTION
FRIDAY AFTERNOON WITH SUNNY SKIES AND GUSTY NORTHWEST WINDS UP TO
25 MPH. THERE WILL BE EXCELLENT RH RECOVERY FRIDAY NIGHT INTO SATURDAY
WHEN WINDS EASE AND BECOME LIGHT AND VARIABLE IN THE MORNING, EVENTUALLY
BECOMING SUSTAINED OUT OF THE SOUTHWEST BY SATURDAY AFTERNOON UP TO
10 MPH.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
MIN TEMPERATURE.....57-61.
MAX HUMIDITY........82-86 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 9 MPH.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 14 MPH.
MARINE LAYER........NONE.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....72-76.
MIN HUMIDITY........43-47 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 14 MPH. GUSTS UP TO 21 MPH
IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MARINE LAYER........NONE.
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY.
MIN TEMPERATURE.....48-52.
MAX HUMIDITY........87-91 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 12 MPH. GUSTS UP TO 20 MPH
IN THE EVENING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 11 MPH.
MARINE LAYER........NONE.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........55-59 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH IN
THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....WEST AROUND 6 MPH.
MARINE LAYER........NONE.
FORECASTER...J_MERCHANT
REQUESTED BY...MARSHALL TURBEVILLE
TYPE OF REQUEST...PRESCRIBED
.TAG 2622226.1/MTR
.DELDT 09/24/26
.FORMATTERVERSION 2.0.0
.EMAIL MARSHALL.TURBEVILLE@FIRE.CA.GOV
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