861
FNUS76 KSTO 242011
FWSSTO

Spot Forecast for Twain Fire...USFS
National Weather Service Sacramento CA
111 PM PDT Fri Jul 24 2026

Forecast is based on forecast start time of 0600 PDT on July 25.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Mostly sunny skies with very dry conditions in the forecast for the
Twain Incident today. Light terrain driven winds in the early morning,
then a shift to south southwest winds with sustained speeds up to
around 12 mph and gusts up to 25 mph possible. Humidity values are
forecast to be in the low teens, and may reach single digits by the
late afternoon. Slight increase in humidity values on Sunday with
weaker winds. No precipitation is in the forecast for the next 7
days in or near the vicinity of the Twain Fire.

.SATURDAY...

Sky/weather.........Sunny.
Max temperature.....84-94.
Min humidity........10-14 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest up to 9 mph with
                    gusts to around 21 mph in the late morning and
                    afternoon.
 Ridgetop...........Southwest 26 to 35 mph decreasing to 24 to 25
                    mph late in the afternoon.
Mixing height.......5600 ft AGL.
Transport winds.....South 5 to 8 mph increasing to southwest 15 to
                    21 mph late in the morning.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6 AM      9 AM      NOON      3 PM
Sky cover.......PCLDY     MCLEAR    MCLEAR    MCLEAR
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............57        66        84        88
RH..............54        33        16        14
SL/VL wind......NE 1G2    S 3G6     SW 8G16   SW 9G21
Ridgetop wind...SW 35     SW 32     SW 28     SW 26
Mix hgt (ft)....400       1700      5200      5600
Transport wind..S 5       S 8       S 18      SW 21

.SATURDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....53-57.
Max humidity........57-61 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 5 to 8 mph with gusts to around
                    20 mph early in the evening becoming light.
 Ridgetop...........Southwest 24 to 29 mph.
Mixing height.......300 ft AGL.
Transport winds.....Southwest 7 to 15 mph shifting to the south 2
                    to 5 mph late in the evening, then shifting to
                    the northeast around 2 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    MCLEAR    MCLEAR    PCLDY
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............86        72        64        58
RH..............15        31        45        54
SL/VL wind......SW 8G20   SW 3G8    SE 2G3    NE 1G2
Ridgetop wind...SW 24     SW 28     SW 29     SW 29
Mix hgt (ft)....4400      400       300       300
Transport wind..SW 15     SW 7      SW 5      S 2

.SUNDAY...

Sky/weather.........Sunny.
Max temperature.....83-93.
Min humidity........13-17 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest up to 8 mph late
                    in the morning.
 Ridgetop...........Southwest 21 to 30 mph.
Mixing height.......6800 ft AGL.
Transport winds.....Northeast around 2 mph shifting to the
                    southeast around 3 mph early in the morning,
                    then increasing to southwest 10 to 17 mph late
                    in the morning.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6 AM      9 AM      NOON      3 PM
Sky cover.......MCLEAR    CLEAR     CLEAR     CLEAR
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............55        64        82        88
RH..............61        43        18        15
SL/VL wind......NE 1G2    E 1G2     SW 5G9    SW 8G17
Ridgetop wind...SW 30     SW 28     SW 22     SW 22
Mix hgt (ft)....400       500       4800      6800
Transport wind..NE 2      SE 3      SW 10     SW 17

$$
Forecaster...JW
Requested by...Isabella Giacomangeli
Type of request...WILDFIRE
.TAG 2617670.7/STO
.DELDT 07/24/26
.FormatterVersion 2.0.0
.EMAIL Markoest222@gmail.com,jefflucas37@gmail.com,isabella.giacomangeli@usda.gov