046
FNUS56 KSTO 261939
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
1139 AM PST FRI DEC 26 2025
DISCUSSION
FINAL ROUND OF VALLEY RAIN AND MOUNTAIN SNOW WILL PUSH THROUGH
NORTHERN CALIFORNIA FRIDAY AFTERNOON AND EVENING. THIS WILL BE
ACCOMPANIED BY A SLIGHT CHANCE OF THUNDERSTORMS, AS WELL AS SOME
GUSTY WINDS. DRIER CONDITIONS RETURN FOR SATURDAY AND BEYOND AS
HIGH PRESSURE BUILDS OVER THE REGION.
CAZ213-270100-
EASTERN PORTION OF SHASTA-TRINITY NF-
1139 AM PST FRI DEC 26 2025
TODAY
* SKY/WEATHER............RAIN AT LOWER ELEVATIONS....AND RAIN AND
SNOW...HEAVY AT TIMES AT HIGHER ELEVATIONS.
* MAX TEMPERATURE........46-51 LOWER ELEVATIONS...EXCEPT 36-44
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........84-95 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 12 TO 18 MPH WITH LOCAL GUSTS UP
TO 40 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 12 TO 18 MPH WITH LOCAL GUSTS UP
TO 40 MPH.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........2900 FT AGL.
* CHANCE OF THUNDER......5 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. AT LOWER ELEVATIONS, A
CHANCE OF RAIN IN THE EVENING, THEN A SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. AT HIGHER ELEVATIONS, A CHANCE OF RAIN AND SNOW...HEAVY
AT TIMES IN THE EVENING, THEN A SLIGHT CHANCE OF RAIN AND SNOW
AFTER MIDNIGHT.
* MIN TEMPERATURE........34-39 LOWER ELEVATIONS...EXCEPT 25-33
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........90-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
SATURDAY
* SKY/WEATHER............PARTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING. AT HIGHER ELEVATIONS, A SLIGHT CHANCE OF SNOW EARLY IN
THE MORNING.
* MAX TEMPERATURE........47-52 LOWER ELEVATIONS...EXCEPT 37-45
HIGHER ELEVATIONS.
* MIN HUMIDITY...........60-75 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 8 MPH.
* MIXING HEIGHT..........2600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ214-270100-
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING
NORTHWEST LASSEN NF NORTH OF LASSEN NP-
1139 AM PST FRI DEC 26 2025
TODAY
* SKY/WEATHER............AT LOWER ELEVATIONS, RAIN AND A CHANCE OF
SNOW IN THE MORNING, THEN RAIN IN THE AFTERNOON. AT HIGHER
ELEVATIONS, A CHANCE OF RAIN AND SNOW IN THE MORNING, THEN RAIN
AND SNOW IN THE AFTERNOON. SNOW LEVEL 4500 FEET IN THE AFTERNOON.
* MAX TEMPERATURE........42-47 LOWER ELEVATIONS...EXCEPT 36-41
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........74-82 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11 TO 17 MPH WITH LOCAL
GUSTS UP TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 12 TO 18 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........3000 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. AT LOWER ELEVATIONS, A
CHANCE OF RAIN IN THE EVENING, THEN A CHANCE OF RAIN AND SNOW
AFTER MIDNIGHT. AT HIGHER ELEVATIONS, A CHANCE OF RAIN AND SNOW.
* MIN TEMPERATURE........26-31.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 8 TO 14 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 8 TO 14 MPH.
* CWR....................20 PERCENT.
* MIXING HEIGHT..........1300 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW
EARLY IN THE MORNING, THEN MOSTLY SUNNY IN THE LATE MORNING AND
AFTERNOON.
* MAX TEMPERATURE........39-44 LOWER ELEVATIONS...EXCEPT 34-39
HIGHER ELEVATIONS.
* MIN HUMIDITY...........62-77 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........2700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ215-270100-
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW
1000 FT-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............RAIN.
* MAX TEMPERATURE........49-54.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........91-98 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS 13 TO 19 MPH WITH LOCAL
GUSTS UP TO 45 MPH.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. A CHANCE OF RAIN IN THE
EVENING, THEN A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE........37-44.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTHEAST WINDS 8 TO 14 MPH WITH LOCAL
GUSTS UP TO 25 MPH SHIFTING TO THE NORTHWEST UP TO 8 MPH AFTER
MIDNIGHT.
* CWR....................20 PERCENT.
* MIXING HEIGHT..........700 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........48-53.
* MIN HUMIDITY...........68-83 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 8 MPH.
* MIXING HEIGHT..........2200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......2 PERCENT.
CAZ216-270100-
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............A CHANCE OF RAIN IN THE MORNING, THEN RAIN
IN THE AFTERNOON.
* MAX TEMPERATURE........50-55.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........88-97 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHEAST WINDS 14 TO 20 MPH WITH LOCAL
GUSTS UP TO 40 MPH.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......10 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. A CHANCE OF RAIN IN THE
EVENING, THEN A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE........38-46.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTHEAST WINDS 7 TO 13 MPH. LOCAL GUSTS
UP TO 25 MPH IN THE EVENING.
* CWR....................20 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......9 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
EARLY IN THE MORNING, THEN MOSTLY SUNNY IN THE LATE MORNING AND
AFTERNOON.
* MAX TEMPERATURE........49-54.
* MIN HUMIDITY...........71-86 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* MIXING HEIGHT..........2600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......2 PERCENT.
CAZ217-270100-
SOUTHERN SACRAMENTO VALLEY IN YOLO-
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY
BELOW 1000 FT-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............PARTLY CLOUDY WITH A CHANCE OF RAIN IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE AFTERNOON.
* MAX TEMPERATURE........52-57.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........86-93 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHEAST WINDS 11 TO 17 MPH WITH LOCAL
GUSTS UP TO 35 MPH.
* CWR....................40 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......11 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. A CHANCE OF RAIN IN THE
EVENING.
* MIN TEMPERATURE........43-48.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTH WINDS 6 TO 12 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* CWR....................20 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......10 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN
BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE........49-54.
* MIN HUMIDITY...........74-89 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........2600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......1 PERCENT.
CAZ218-270100-
CARQUINEZ STRAIT AND DELTA-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
IN THE MORNING, THEN MOSTLY CLOUDY WITH A CHANCE OF RAIN IN THE
AFTERNOON.
* MAX TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........80-87 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 14 TO 20 MPH. LOCAL GUSTS UP
TO 40 MPH DECREASING TO 30 MPH IN THE AFTERNOON.
* CWR....................30 PERCENT.
* MIXING HEIGHT..........3700 FT AGL.
* CHANCE OF THUNDER......10 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE........43-48.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........94-99 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTH WINDS 7 TO 13 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......10 PERCENT.
SATURDAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY.
* MAX TEMPERATURE........50-55.
* MIN HUMIDITY...........76-90 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........2400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......1 PERCENT.
CAZ219-270100-
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS
COUNTIES BELOW 1000 FT-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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........52-57.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........75-87 PERCENT.
* 24 HR TREND..........4 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTHEAST WINDS 11 TO 17 MPH WITH LOCAL
GUSTS UP TO 35 MPH.
* CWR....................30 PERCENT.
* MIXING HEIGHT..........2900 FT AGL.
* CHANCE OF THUNDER......14 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. A CHANCE OF RAIN IN THE
EVENING.
* MIN TEMPERATURE........42-47.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTHEAST WINDS 8 TO 14 MPH WITH LOCAL
GUSTS UP TO 25 MPH.
* CWR....................20 PERCENT.
* MIXING HEIGHT..........700 FT AGL.
* CHANCE OF THUNDER......10 PERCENT.
SATURDAY
* SKY/WEATHER............PARTLY CLOUDY UNTIL LATE AFTERNOON THEN
BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE........49-54.
* MIN HUMIDITY...........77-92 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* MIXING HEIGHT..........2500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......1 PERCENT.
CAZ263-279-270100-
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-
GLENN UNIT-EASTERN MENDOCINO NF-
1139 AM PST FRI DEC 26 2025
TODAY
* SKY/WEATHER............RAIN AT LOWER ELEVATIONS....AND RAIN AND
SNOW...HEAVY AT TIMES AT HIGHER ELEVATIONS. SNOW LEVEL 4500 FEET
IN THE MORNING.
* MAX TEMPERATURE........46-51 LOWER ELEVATIONS...EXCEPT 34-42
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........78-89 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 13 TO 19 MPH WITH LOCAL
GUSTS UP TO 35 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 13 TO 19 MPH WITH LOCAL GUSTS UP
TO 45 MPH.
* CWR....................90 PERCENT.
* MIXING HEIGHT..........2100 FT AGL.
* CHANCE OF THUNDER......9 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. AT LOWER ELEVATIONS, A CHANCE OF RAIN IN THE
EVENING. AT HIGHER ELEVATIONS, A SLIGHT CHANCE OF RAIN AND SNOW
IN THE EVENING.
* MIN TEMPERATURE........36-41 LOWER ELEVATIONS...EXCEPT 26-34
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........82-96 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS 8 TO 14 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 8 TO 14 MPH.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......6 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........48-53 LOWER ELEVATIONS...EXCEPT 35-43
HIGHER ELEVATIONS.
* MIN HUMIDITY...........54-69 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 10 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........1800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ266-270100-
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS
OF SHASTA-TRINITY AND BUTTE UNITS-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............RAIN.
* MAX TEMPERATURE........44-49.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........84-96 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...BREEZY. SOUTHEAST WINDS 15 TO 27 MPH
SHIFTING TO THE SOUTH 13 TO 19 MPH IN THE AFTERNOON. LOCAL
GUSTS UP TO 45 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 13 TO 19 MPH WITH LOCAL GUSTS UP
TO 45 MPH.
* CWR....................70 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......8 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN A CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE........37-42.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 7 TO 13 MPH. LOCAL GUSTS UP
TO 25 MPH IN THE EVENING.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 6 TO 12 MPH. LOCAL GUSTS UP
TO 25 MPH IN THE EVENING.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
EARLY IN THE MORNING, THEN MOSTLY SUNNY IN THE LATE MORNING AND
AFTERNOON.
* MAX TEMPERATURE........45-50.
* MIN HUMIDITY...........64-79 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
NORTHWEST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........2200 FT AGL.
* CWR....................10 PERCENT.
* CHANCE OF THUNDER......3 PERCENT.
CAZ220-267-270100-
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-
1139 AM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
TODAY
* SKY/WEATHER............SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS.
* MAX TEMPERATURE........45-50.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........89-97 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 10 TO 16 MPH WITH LOCAL GUSTS UP
TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 10 TO 16 MPH WITH LOCAL GUSTS UP
TO 30 MPH.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........2500 FT AGL.
* CHANCE OF THUNDER......13 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN A CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE........36-41.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 6 TO 12 MPH.
* CWR....................50 PERCENT.
* MIXING HEIGHT..........1000 FT AGL.
* CHANCE OF THUNDER......9 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
EARLY IN THE MORNING, THEN PARTLY CLOUDY IN THE LATE MORNING AND
AFTERNOON.
* MAX TEMPERATURE........47-52.
* MIN HUMIDITY...........74-89 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING NORTHWEST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
NORTHWEST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........2800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......1 PERCENT.
CAZ268-270100-
NORTHERN SIERRA INCLUDING LASSEN NP AND PLUMAS AND LASSEN NF/S
WEST OF THE SIERRA CREST (WEST OF EVANS PEAK-GRIZZLY PEAK-
BECKWORTH PEAK)-
1139 AM PST FRI DEC 26 2025
TODAY
* SKY/WEATHER............A CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN RAIN AND SNOW IN THE AFTERNOON. SNOW LEVEL 4500 FEET.
* MAX TEMPERATURE........35-40 LOWER ELEVATIONS...EXCEPT 29-34
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........83-94 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 15 TO 27 MPH WITH LOCAL GUSTS UP
TO 45 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTH WINDS 15 TO 27 MPH. LOCAL
GUSTS UP TO 50 MPH DECREASING TO 35 MPH IN THE AFTERNOON.
* CWR....................70 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......6 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. RAIN AND SNOW LIKELY IN THE
EVENING, THEN A CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. SNOW
LEVEL 4500 FEET.
* MIN TEMPERATURE........26-33 LOWER ELEVATIONS...EXCEPT 22-28
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........94-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10 TO 16 MPH. LOCAL GUSTS UP
TO 30 MPH IN THE EVENING.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 10 TO 16 MPH WITH LOCAL
GUSTS UP TO 30 MPH.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......5 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
AND SNOW EARLY IN THE MORNING, THEN MOSTLY SUNNY IN THE LATE
MORNING AND AFTERNOON.
* MAX TEMPERATURE........36-41 LOWER ELEVATIONS...EXCEPT 30-36
HIGHER ELEVATIONS.
* MIN HUMIDITY...........66-81 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING NORTH UP
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........2000 FT AGL.
* CWR....................10 PERCENT.
* CHANCE OF THUNDER......2 PERCENT.
CAZ221-269-270100-
STANISLAUS NF WEST OF THE SIERRA CREST-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
1139 AM PST FRI DEC 26 2025
TODAY
* SKY/WEATHER............SNOW LIKELY...HEAVY AT TIMES, RAIN LIKELY
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SNOW
LIKELY...HEAVY AT TIMES AND RAIN IN THE AFTERNOON. SNOW LEVEL
5000 FEET.
* MAX TEMPERATURE........39-44 LOWER ELEVATIONS...EXCEPT 27-36
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........78-93 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 15 TO 21 MPH WITH LOCAL GUSTS UP
TO 30 MPH.
* RIDGES/UPR SLOPES....BREEZY. SOUTH WINDS 15 TO 21 MPH. LOCAL
GUSTS UP TO 55 MPH DECREASING TO 40 MPH IN THE AFTERNOON.
* CWR....................80 PERCENT.
* MIXING HEIGHT..........2300 FT AGL.
* CHANCE OF THUNDER......11 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY. SNOW LIKELY...HEAVY AT
TIMES AND RAIN LIKELY IN THE EVENING, THEN A CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. SNOW LEVEL 4500 FEET.
* MIN TEMPERATURE........31-36 LOWER ELEVATIONS...EXCEPT 16-26
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........87-100 PERCENT.
* 24 HR TREND..........100 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTH WINDS 10 TO 16 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS 10 TO 16 MPH WITH LOCAL GUSTS UP
TO 35 MPH.
* CWR....................60 PERCENT.
* MIXING HEIGHT..........900 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
SATURDAY
* SKY/WEATHER............MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW
EARLY IN THE MORNING, THEN MOSTLY SUNNY IN THE LATE MORNING AND
AFTERNOON.
* MAX TEMPERATURE........42-47 LOWER ELEVATIONS...EXCEPT 30-38
HIGHER ELEVATIONS.
* MIN HUMIDITY...........65-80 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTH WINDS UP TO 8 MPH SHIFTING TO THE
NORTHWEST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........2100 FT AGL.
* CWR....................10 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
EXTENDED
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 23 TO 33. NORTH WINDS 5 TO
15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 41 TO 51. NORTH WINDS 5 TO 15 MPH.
SUNDAY NIGHT
CLEAR. LOWS 26 TO 36. NORTH WINDS 5 TO 15 MPH.
MONDAY
SUNNY. HIGHS 46 TO 56. NORTH WINDS 5 TO 15 MPH.
MONDAY NIGHT
CLEAR. LOWS 28 TO 38. NORTH WINDS 5 TO 10 MPH.
TUESDAY
SUNNY. HIGHS 48 TO 57. NORTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
CLEAR. LOWS 29 TO 39. VARIABLE LESS THAN 5 MPH.
...NORTHERN SIERRA AND LASSEN PARK
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 21 TO 31. NORTHEAST WINDS
5 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 41 TO 51. EAST WINDS 5 TO 15 MPH.
SUNDAY NIGHT
CLEAR. LOWS 23 TO 33. NORTHEAST WINDS 10 TO
20 MPH.
MONDAY
SUNNY. HIGHS 45 TO 55. NORTHEAST WINDS 5 TO 15 MPH.
MONDAY NIGHT
CLEAR. LOWS 26 TO 36. NORTHEAST WINDS 5 TO
10 MPH.
TUESDAY
SUNNY. HIGHS 48 TO 58. NORTHEAST WINDS UP TO 10 MPH.
TUESDAY NIGHT
CLEAR. LOWS 27 TO 37. NORTHEAST WINDS UP TO
10 MPH.
...SIERRA NEVADA FOOTHILLS
SATURDAY NIGHT
MOSTLY CLEAR. PATCHY DENSE FOG. LOWS 31 TO 36.
NORTHEAST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. PATCHY DENSE FOG. HIGHS 47 TO 52.
NORTHEAST WINDS 5 TO 15 MPH.
SUNDAY NIGHT
CLEAR. LOWS 33 TO 38. NORTHEAST WINDS 5 TO
15 MPH.
MONDAY
SUNNY. HIGHS 51 TO 57. NORTHEAST WINDS UP TO 10 MPH.
MONDAY NIGHT
CLEAR. LOWS 35 TO 40. VARIABLE LESS THAN 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 53 TO 59. VARIABLE LESS THAN
5 MPH.
TUESDAY NIGHT
CLEAR. LOWS 37 TO 42. VARIABLE LESS THAN 5 MPH.
...CENTRAL VALLEY AND DELTA
SATURDAY NIGHT
PARTLY CLOUDY. PATCHY DENSE FOG. LOWS 36 TO 41.
NORTHWEST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. PATCHY DENSE FOG. HIGHS 47 TO 52. NORTH
WINDS UP TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 41. NORTH WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 48 TO 53. NORTH WINDS UP TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 40. VARIABLE LESS THAN
5 MPH.
TUESDAY
PARTLY CLOUDY. HIGHS 49 TO 54. VARIABLE LESS THAN
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 41. VARIABLE LESS THAN
5 MPH.
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