261
FNUS56 KSTO 240923
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
123 AM PST WED DEC 24 2025
DISCUSSION
WIDESPREAD HEAVY PRECIPITATION THEN RETURNS THROUGH FRIDAY ALONG
WITH GUSTY SOUTH WINDS. SNOW LEVELS FALL TO AROUND 4500 FEET IN
THE SIERRA AND 3500 FEET FOR SHASTA COUNTY MOUNTAINS AND COAST
RANGE THROUGH FRIDAY. HEAVIEST PRECIPITATION AND STRONGEST WINDS
EXPECTED WEDNESDAY AND THURSDAY. LINGERING SHOWERS REMAIN POSSIBLE
SATURDAY WITH CONDITIONS SLOWLY CLEARING THROUGH THE WEEKEND.
CAZ213-250100-
EASTERN PORTION OF SHASTA-TRINITY NF-
123 AM PST WED DEC 24 2025
TODAY
* SKY/WEATHER............HEAVY SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF RAIN IN THE
AFTERNOON.
* MAX TEMPERATURE........53-58 LOWER ELEVATIONS...EXCEPT 46-51
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........83-94 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 14 TO 26 MPH WITH LOCAL
GUSTS UP TO 50 MPH DECREASING TO 8 TO 14 MPH WITH LOCAL GUSTS
UP TO 35 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 19 TO 31 MPH WITH LOCAL
GUSTS UP TO 50 MPH DECREASING TO 12 TO 18 MPH WITH LOCAL GUSTS
UP TO 35 MPH IN THE AFTERNOON.
* CWR....................70 PERCENT.
* MIXING HEIGHT..........2700 FT AGL.
* CHANCE OF THUNDER......18 PERCENT.
TONIGHT
* SKY/WEATHER............RAIN.
* MIN TEMPERATURE........42-47 LOWER ELEVATIONS...EXCEPT 33-40
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTHEAST WINDS 10 TO 16 MPH WITH
LOCAL GUSTS UP TO 35 MPH INCREASING TO 13 TO 25 MPH WITH LOCAL
GUSTS UP TO 50 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....BREEZY. SOUTHEAST WINDS 13 TO 19 MPH WITH
LOCAL GUSTS UP TO 35 MPH INCREASING TO 16 TO 28 MPH WITH LOCAL
GUSTS UP TO 50 MPH AFTER MIDNIGHT.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........1300 FT AGL.
* CHANCE OF THUNDER......14 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN. AT HIGHER ELEVATIONS, SNOW...HEAVY
AT TIMES IN THE MORNING. SNOW...HEAVY AT TIMES LATE IN THE
AFTERNOON.
* MAX TEMPERATURE........47-52 LOWER ELEVATIONS...EXCEPT 39-45
HIGHER ELEVATIONS.
* MIN HUMIDITY...........80-95 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 17 TO 29 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 17 TO 29 MPH. LOCAL GUSTS
UP TO 50 MPH DECREASING TO 35 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................100 PERCENT.
* CHANCE OF THUNDER......13 PERCENT.
CAZ214-250100-
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING
NORTHWEST LASSEN NF NORTH OF LASSEN NP-
123 AM PST WED DEC 24 2025
TODAY
* SKY/WEATHER............MOSTLY CLOUDY WITH RAIN LIKELY IN THE
MORNING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN IN THE
AFTERNOON.
* MAX TEMPERATURE........46-51.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........68-76 PERCENT.
* 24 HR TREND..........8 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11 TO 17 MPH WITH LOCAL
GUSTS UP TO 40 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 20 TO 32 MPH BECOMING
SOUTHWEST 12 TO 18 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 50
MPH.
* CWR....................30 PERCENT.
* MIXING HEIGHT..........4500 FT AGL.
* CHANCE OF THUNDER......12 PERCENT.
TONIGHT
* SKY/WEATHER............AT LOWER ELEVATIONS, RAIN. AT HIGHER
ELEVATIONS, SNOW...HEAVY AT TIMES AND A CHANCE OF RAIN IN THE
EVENING, THEN RAIN AND SNOW...HEAVY AT TIMES AFTER MIDNIGHT.
* MIN TEMPERATURE........32-37.
* 24 HR TREND..........5 DEGREES COOLER.
* MAX HUMIDITY...........94-100 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 7 TO 13 MPH WITH LOCAL GUSTS
UP TO 30 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTH WINDS 12 TO 18 MPH INCREASING
TO 16 TO 28 MPH AFTER MIDNIGHT. LOCAL GUSTS UP TO 45 MPH.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........900 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN AT LOWER ELEVATIONS....AND RAIN AND
SNOW AT HIGHER ELEVATIONS. SNOW LEVEL 4500 FEET IN THE AFTERNOON.
* MAX TEMPERATURE........39-44.
* MIN HUMIDITY...........77-92 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 15 TO 27 MPH WITH LOCAL GUSTS UP
TO 35 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 15 TO 27 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* MIXING HEIGHT..........5700 FT AGL.
* CWR....................80 PERCENT.
* CHANCE OF THUNDER......9 PERCENT.
CAZ215-250100-
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW
1000 FT-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............MOSTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
RAIN IN THE AFTERNOON.
* MAX TEMPERATURE........53-58.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........88-94 PERCENT.
* 24 HR TREND..........6 PERCENT DOWN.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 18 TO 30 MPH WITH LOCAL
GUSTS UP TO 50 MPH SHIFTING TO THE SOUTHEAST 14 TO 20 MPH WITH
LOCAL GUSTS UP TO 40 MPH IN THE AFTERNOON.
* CWR....................30 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......18 PERCENT.
TONIGHT
* SKY/WEATHER............RAIN.
* MIN TEMPERATURE........45-50.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTHEAST WINDS 16 TO 28 MPH. LOCAL
GUSTS UP TO 45 MPH INCREASING TO 55 MPH AFTER MIDNIGHT.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........1100 FT AGL.
* CHANCE OF THUNDER......13 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN.
* MAX TEMPERATURE........49-54.
* MIN HUMIDITY...........88-100 PERCENT.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 18 TO 30 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* MIXING HEIGHT..........4400 FT AGL.
* CWR....................80 PERCENT.
* CHANCE OF THUNDER......14 PERCENT.
CAZ216-250100-
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........86-94 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 18 TO 30 MPH SHIFTING
TO THE SOUTHEAST 15 TO 21 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO
40 MPH.
* CWR....................30 PERCENT.
* MIXING HEIGHT..........2900 FT AGL.
* CHANCE OF THUNDER......18 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MIN TEMPERATURE........44-51.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTHEAST WINDS 19 TO 31 MPH. LOCAL
GUSTS UP TO 45 MPH INCREASING TO 55 MPH AFTER MIDNIGHT.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........900 FT AGL.
* CHANCE OF THUNDER......20 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN IN THE MORNING, THEN RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE........50-55.
* MIN HUMIDITY...........82-97 PERCENT.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 19 TO 31 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* MIXING HEIGHT..........4400 FT AGL.
* CWR....................90 PERCENT.
* CHANCE OF THUNDER......16 PERCENT.
CAZ217-250100-
SOUTHERN SACRAMENTO VALLEY IN YOLO-
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY
BELOW 1000 FT-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE........56-61.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........82-91 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........BREEZY. SOUTH WINDS 17 TO 29 MPH BECOMING
SOUTHEAST 11 TO 17 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 35
MPH.
* CWR....................40 PERCENT.
* MIXING HEIGHT..........2500 FT AGL.
* CHANCE OF THUNDER......20 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MIN TEMPERATURE........49-54.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........94-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTHEAST WINDS 18 TO 30 MPH WITH
LOCAL GUSTS UP TO 50 MPH.
* CWR....................70 PERCENT.
* MIXING HEIGHT..........2000 FT AGL.
* CHANCE OF THUNDER......19 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MAX TEMPERATURE........52-57.
* MIN HUMIDITY...........79-94 PERCENT.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 19 TO 31 MPH DECREASING
TO 16 TO 22 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 45 MPH.
* MIXING HEIGHT..........4100 FT AGL.
* CWR....................80 PERCENT.
* CHANCE OF THUNDER......16 PERCENT.
CAZ218-250100-
CARQUINEZ STRAIT AND DELTA-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE........58-63.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........79-85 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 18 TO 30 MPH WITH LOCAL
GUSTS UP TO 40 MPH BECOMING SOUTHEAST 12 TO 19 MPH WITH LOCAL
GUSTS UP TO 30 MPH IN THE AFTERNOON.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........2700 FT AGL.
* CHANCE OF THUNDER......18 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MIN TEMPERATURE........51-56.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........89-95 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTHEAST WINDS 21 TO 33 MPH. LOCAL
GUSTS UP TO 50 MPH INCREASING TO 60 MPH AFTER MIDNIGHT.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........2600 FT AGL.
* CHANCE OF THUNDER......19 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE MORNING, THEN RAIN LATE IN THE
MORNING. SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE........54-59.
* MIN HUMIDITY...........76-91 PERCENT.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 19 TO 31 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* MIXING HEIGHT..........4800 FT AGL.
* CWR....................60 PERCENT.
* CHANCE OF THUNDER......16 PERCENT.
CAZ219-250100-
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS
COUNTIES BELOW 1000 FT-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MAX TEMPERATURE........57-62.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........83-91 PERCENT.
* 24 HR TREND..........17 PERCENT UP.
* 20-FOOT WINDS..........BREEZY. SOUTH WINDS 17 TO 29 MPH SHIFTING
TO THE SOUTHEAST 15 TO 21 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO
35 MPH.
* CWR....................40 PERCENT.
* MIXING HEIGHT..........2200 FT AGL.
* CHANCE OF THUNDER......19 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE........49-55.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........92-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WINDY. SOUTHEAST WINDS 24 TO 36 MPH WITH
LOCAL GUSTS UP TO 50 MPH.
* CWR....................40 PERCENT.
* MIXING HEIGHT..........2000 FT AGL.
* CHANCE OF THUNDER......14 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MAX TEMPERATURE........53-58.
* MIN HUMIDITY...........77-92 PERCENT.
* 20-FOOT WINDS..........WINDY. SOUTH WINDS 18 TO 30 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................70 PERCENT.
* CHANCE OF THUNDER......16 PERCENT.
CAZ263-279-250100-
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-
GLENN UNIT-EASTERN MENDOCINO NF-
123 AM PST WED DEC 24 2025
TODAY
* SKY/WEATHER............MOSTLY CLOUDY. AT LOWER ELEVATIONS, A
CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN A CHANCE OF RAIN IN THE AFTERNOON. AT HIGHER
ELEVATIONS, SHOWERS LIKELY, A SLIGHT CHANCE OF THUNDERSTORMS AND
SNOW IN THE MORNING, THEN A CHANCE OF RAIN AND SNOW...HEAVY AT
TIMES IN THE AFTERNOON.
* MAX TEMPERATURE........52-57 LOWER ELEVATIONS...EXCEPT 43-50
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........77-88 PERCENT.
* 24 HR TREND..........5 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 14 TO 26 MPH SHIFTING TO
THE SOUTHEAST 11 TO 17 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO
35 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTHWEST WINDS 21 TO 33 MPH WITH
LOCAL GUSTS UP TO 50 MPH BECOMING SOUTHEAST 15 TO 21 MPH IN THE
AFTERNOON.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........2700 FT AGL.
* CHANCE OF THUNDER......17 PERCENT.
TONIGHT
* SKY/WEATHER............RAIN AT LOWER ELEVATIONS....AND RAIN AND
SNOW...HEAVY AT TIMES AT HIGHER ELEVATIONS.
* MIN TEMPERATURE........41-46 LOWER ELEVATIONS...EXCEPT 32-40
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........87-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTHEAST WINDS 19 TO 31 MPH WITH
LOCAL GUSTS UP TO 45 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTHEAST WINDS 20 TO 32 MPH WITH
LOCAL GUSTS UP TO 55 MPH.
* CWR....................100 PERCENT.
* MIXING HEIGHT..........1000 FT AGL.
* CHANCE OF THUNDER......13 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............AT HIGHER ELEVATIONS, SNOW...HEAVY AT
TIMES THROUGH THE DAY. RAIN IN THE MORNING. SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON. RAIN LATE IN THE
AFTERNOON. SNOW LEVEL 4500 FEET.
* MAX TEMPERATURE........47-52 LOWER ELEVATIONS...EXCEPT 36-44
HIGHER ELEVATIONS.
* MIN HUMIDITY...........75-90 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 19 TO 31 MPH WITH LOCAL
GUSTS UP TO 40 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 19 TO 31 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* MIXING HEIGHT..........4100 FT AGL.
* CWR....................90 PERCENT.
* CHANCE OF THUNDER......14 PERCENT.
CAZ266-250100-
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS
OF SHASTA-TRINITY AND BUTTE UNITS-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............MOSTLY CLOUDY. HEAVY SHOWERS LIKELY AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
RAIN IN THE AFTERNOON.
* MAX TEMPERATURE........52-57.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........79-92 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WINDY. SOUTH WINDS 25 TO 37 MPH DECREASING
TO 12 TO 18 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 50 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 21 TO 33 MPH WITH LOCAL
GUSTS UP TO 50 MPH DECREASING TO 9 TO 15 MPH WITH LOCAL GUSTS
UP TO 35 MPH IN THE AFTERNOON.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......18 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MIN TEMPERATURE........40-45.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WINDY. SOUTHEAST WINDS 16 TO 28 MPH
INCREASING TO SOUTH 24 TO 36 MPH AFTER MIDNIGHT. LOCAL GUSTS UP
TO 60 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTHEAST WINDS 15 TO 21 MPH
INCREASING TO SOUTH 21 TO 33 MPH AFTER MIDNIGHT. LOCAL GUSTS UP
TO 60 MPH.
* CWR....................100 PERCENT.
* MIXING HEIGHT..........1000 FT AGL.
* CHANCE OF THUNDER......15 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN IN THE MORNING, THEN RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON. RAIN
LATE IN THE AFTERNOON.
* MAX TEMPERATURE........46-51.
* MIN HUMIDITY...........79-94 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...VERY WINDY. SOUTH WINDS 28 TO 40 MPH
DECREASING TO 15 TO 27 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO
55 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 23 TO 35 MPH DECREASING
TO 14 TO 20 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 55 MPH.
* MIXING HEIGHT..........3800 FT AGL.
* CWR....................100 PERCENT.
* CHANCE OF THUNDER......14 PERCENT.
CAZ220-267-250100-
SOUTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
TOULUMNE-CALAVERAS UNIT-
NORTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
NEVADA-YUBA-PLACER-AMADOR AND ELDORADO UNITS-
123 AM PST WED DEC 24 2025
..HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THURSDAY
TODAY
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN RAIN AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE........52-57.
* 24 HR TREND..........5 DEGREES COOLER.
* MIN HUMIDITY...........90-97 PERCENT.
* 24 HR TREND..........19 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 15 TO 21 MPH WITH LOCAL GUSTS UP
TO 35 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTH WINDS 15 TO 21 MPH WITH LOCAL
GUSTS UP TO 35 MPH.
* CWR....................80 PERCENT.
* MIXING HEIGHT..........2300 FT AGL.
* CHANCE OF THUNDER......19 PERCENT.
TONIGHT
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN AND A SLIGHT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT.
* MIN TEMPERATURE........42-47.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTHEAST WINDS 16 TO 28 MPH WITH
LOCAL GUSTS UP TO 45 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTHEAST WINDS 16 TO 28 MPH WITH
LOCAL GUSTS UP TO 45 MPH.
* CWR....................70 PERCENT.
* MIXING HEIGHT..........1100 FT AGL.
* CHANCE OF THUNDER......17 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN EARLY IN THE MORNING, THEN RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE MORNING
AND AFTERNOON.
* MAX TEMPERATURE........48-53.
* MIN HUMIDITY...........84-99 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 16 TO 28 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTH WINDS 16 TO 28 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* MIXING HEIGHT..........3300 FT AGL.
* CWR....................100 PERCENT.
* CHANCE OF THUNDER......16 PERCENT.
CAZ268-250100-
NORTHERN SIERRA INCLUDING LASSEN NP AND PLUMAS AND LASSEN NF/S
WEST OF THE SIERRA CREST (WEST OF EVANS PEAK-GRIZZLY PEAK-
BECKWORTH PEAK)-
123 AM PST WED DEC 24 2025
TODAY
* SKY/WEATHER............MOSTLY CLOUDY. AT LOWER ELEVATIONS, A
CHANCE OF RAIN. AT HIGHER ELEVATIONS, RAIN AND A CHANCE OF
SNOW...HEAVY AT TIMES IN THE MORNING, THEN A CHANCE OF RAIN AND
SNOW IN THE AFTERNOON.
* MAX TEMPERATURE........43-48 LOWER ELEVATIONS...EXCEPT 38-44
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........77-92 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WINDY. SOUTH WINDS 22 TO 34 MPH WITH LOCAL
GUSTS UP TO 50 MPH DECREASING TO 11 TO 17 MPH WITH LOCAL GUSTS
UP TO 35 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 27 TO 39 MPH WITH LOCAL
GUSTS UP TO 60 MPH DECREASING TO 14 TO 26 MPH WITH LOCAL GUSTS
UP TO 40 MPH IN THE AFTERNOON.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......15 PERCENT.
TONIGHT
* SKY/WEATHER............AT LOWER ELEVATIONS, RAIN IN THE EVENING,
THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
AT HIGHER ELEVATIONS, SNOW...HEAVY AT TIMES AND RAIN.
* MIN TEMPERATURE........28-36.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WINDY. SOUTH WINDS 22 TO 34 MPH WITH LOCAL
GUSTS UP TO 60 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 22 TO 34 MPH WITH LOCAL
GUSTS UP TO 60 MPH.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........1600 FT AGL.
* CHANCE OF THUNDER......13 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............RAIN...HEAVY AT TIMES AND SNOW...HEAVY AT
TIMES. SNOW LEVEL 5000 FEET DECREASING TO 4500 FEET IN THE
AFTERNOON.
* MAX TEMPERATURE........37-42 LOWER ELEVATIONS...EXCEPT 32-38
HIGHER ELEVATIONS.
* MIN HUMIDITY...........78-93 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WINDY. SOUTH WINDS 22 TO 34 MPH WITH LOCAL
GUSTS UP TO 55 MPH DECREASING TO 13 TO 25 MPH WITH LOCAL GUSTS
UP TO 40 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 24 TO 36 MPH. LOCAL GUSTS
UP TO 60 MPH DECREASING TO 45 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4200 FT AGL.
* CWR....................100 PERCENT.
* CHANCE OF THUNDER......10 PERCENT.
CAZ221-269-250100-
STANISLAUS NF WEST OF THE SIERRA CREST-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
123 AM PST WED DEC 24 2025
TODAY
* SKY/WEATHER............AT LOWER ELEVATIONS, HEAVY SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN RAIN IN THE
AFTERNOON. AT HIGHER ELEVATIONS, RAIN...HEAVY AT TIMES AND
SNOW...HEAVY AT TIMES IN THE MORNING, THEN SNOW...HEAVY AT TIMES
WITH RAIN LIKELY IN THE AFTERNOON. SNOW LEVEL 7000 FEET
DECREASING TO 6500 FEET IN THE AFTERNOON.
* MAX TEMPERATURE........47-52 LOWER ELEVATIONS...EXCEPT 36-46
HIGHER ELEVATIONS.
* 24 HR TREND..........6 DEGREES COOLER.
* MIN HUMIDITY...........81-95 PERCENT.
* 24 HR TREND..........25 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 14 TO 26 MPH DECREASING
TO 10 TO 16 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 40 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 23 TO 35 MPH WITH LOCAL
GUSTS UP TO 60 MPH DECREASING TO 14 TO 26 MPH WITH LOCAL GUSTS
UP TO 40 MPH IN THE AFTERNOON.
* CWR....................100 PERCENT.
* MIXING HEIGHT..........2600 FT AGL.
* CHANCE OF THUNDER......14 PERCENT.
TONIGHT
* SKY/WEATHER............AT LOWER ELEVATIONS, SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN...HEAVY AT
TIMES AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. AT
HIGHER ELEVATIONS, SNOW...HEAVY AT TIMES AND RAIN. SNOW LEVEL
6500 FEET.
* MIN TEMPERATURE........36-41 LOWER ELEVATIONS...EXCEPT 25-33
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........92-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 20 TO 32 MPH WITH LOCAL
GUSTS UP TO 50 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 21 TO 33 MPH WITH LOCAL
GUSTS UP TO 65 MPH.
* CWR....................100 PERCENT.
* MIXING HEIGHT..........2100 FT AGL.
* CHANCE OF THUNDER......12 PERCENT.
CHRISTMAS DAY
* SKY/WEATHER............AT LOWER ELEVATIONS, RAIN...HEAVY AT TIMES
IN THE MORNING, THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. AT HIGHER ELEVATIONS, SNOW...HEAVY AT TIMES AND
RAIN...HEAVY AT TIMES UNTIL LATE AFTERNOON, THEN SNOW...HEAVY AT
TIMES AND A SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
SNOW LEVEL 5500 FEET.
* MAX TEMPERATURE........42-47 LOWER ELEVATIONS...EXCEPT 31-39
HIGHER ELEVATIONS.
* MIN HUMIDITY...........75-90 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTH WINDS 16 TO 28 MPH DECREASING
TO 13 TO 19 MPH IN THE AFTERNOON. LOCAL GUSTS UP TO 45 MPH.
* RIDGES/UPR SLOPES....WINDY. SOUTH WINDS 23 TO 35 MPH WITH LOCAL
GUSTS UP TO 65 MPH.
* MIXING HEIGHT..........3700 FT AGL.
* CWR....................100 PERCENT.
* CHANCE OF THUNDER......12 PERCENT.
EXTENDED
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
THURSDAY NIGHT
RAIN AND SNOW. LOWS 30 TO 38. SOUTH WINDS 20 TO
30 MPH.
FRIDAY...RAIN AND SNOW
HEAVY AT TIMES. HIGHS 36 TO 44. SOUTH
WINDS 15 TO 25 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.
LOWS 27 TO 37. SOUTHWEST WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. HIGHS
37 TO 47. NORTH WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 23 TO 33. NORTH WINDS 5 TO
15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 42 TO 51. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 26 TO 36. NORTH WINDS 5 TO
10 MPH.
...NORTHERN SIERRA AND LASSEN PARK
THURSDAY NIGHT...SHOWERS, SNOW
HEAVY AT TIMES AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 30 TO 37. SOUTH WINDS 20 TO 30 MPH.
FRIDAY
RAIN AND SNOW. HIGHS 36 TO 44. SOUTH WINDS 20 TO
30 MPH.
FRIDAY NIGHT
RAIN AND SNOW LIKELY. LOWS 25 TO 35. SOUTH WINDS
5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW. HIGHS
39 TO 48. VARIABLE LESS THAN 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 22 TO 32. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 42 TO 52. NORTHEAST WINDS UP TO
10 MPH.
SUNDAY NIGHT
CLEAR. LOWS 24 TO 34. NORTHEAST WINDS 5 TO
10 MPH.
...SIERRA NEVADA FOOTHILLS
THURSDAY NIGHT
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS 38 TO 43. SOUTH WINDS 20 TO 30 MPH.
FRIDAY
RAIN. HIGHS 45 TO 50. SOUTH WINDS 20 TO 30 MPH.
FRIDAY NIGHT
RAIN LIKELY. LOWS 35 TO 40. SOUTHEAST WINDS UP TO
10 MPH.
SATURDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. HIGHS
47 TO 52. VARIABLE LESS THAN 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 38. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 49 TO 54. VARIABLE LESS THAN 5 MPH.
SUNDAY NIGHT
CLEAR. LOWS 35 TO 40. VARIABLE LESS THAN 5 MPH.
...CENTRAL VALLEY AND DELTA
THURSDAY NIGHT
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS 46 TO 51. SOUTH WINDS 20 TO 30 MPH.
FRIDAY
RAIN. HIGHS 49 TO 54. SOUTHEAST WINDS 15 TO 25 MPH.
FRIDAY NIGHT
RAIN LIKELY. LOWS 42 TO 47. SOUTHEAST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. HIGHS
49 TO 54. NORTH WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 41. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. HIGHS 48 TO 53. NORTH WINDS UP TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 40. VARIABLE LESS THAN
5 MPH.
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