044
FNUS56 KSTO 262123
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
123 PM 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.
CAZ213-280000-
EASTERN PORTION OF SHASTA-TRINITY NF-
123 PM PST FRI DEC 26 2025
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............MOSTLY SUNNY.
* MAX TEMPERATURE........48-53 LOWER ELEVATIONS...EXCEPT 38-45
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........59-69 PERCENT.
* 24 HR TREND..........26 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY
AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE........33-38 LOWER ELEVATIONS...EXCEPT 24-32
HIGHER ELEVATIONS.
* MAX HUMIDITY...........67-82 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 7 TO 13 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 7 TO 13 MPH.
* MIXING HEIGHT..........700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........51-56 LOWER ELEVATIONS...EXCEPT 40-48
HIGHER ELEVATIONS.
* MIN HUMIDITY...........44-59 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 7 TO 13 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 7 TO 13 MPH.
* MIXING HEIGHT..........1900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ214-280000-
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING
NORTHWEST LASSEN NF NORTH OF LASSEN NP-
123 PM PST FRI DEC 26 2025
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............PARTLY CLOUDY IN THE MORNING THEN
CLEARING. AT HIGHER ELEVATIONS, A SLIGHT CHANCE OF SNOW IN THE
MORNING.
* MAX TEMPERATURE........40-45 LOWER ELEVATIONS...EXCEPT 35-40
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........65-70 PERCENT.
* 24 HR TREND..........10 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY
AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE........18-23.
* MAX HUMIDITY...........78-93 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...EAST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 9 MPH.
* MIXING HEIGHT..........700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........40-45.
* MIN HUMIDITY...........50-61 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING NORTHEAST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........1700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ215-280000-
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW
1000 FT-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........49-54.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........67-81 PERCENT.
* 24 HR TREND..........21 PERCENT DOWN.
* 20-FOOT WINDS..........NORTH WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2200 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY.
* MIN TEMPERATURE........35-40.
* MAX HUMIDITY...........69-84 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 6 TO 12 MPH. LOCAL GUSTS UP TO
20 MPH IN THE EVENING.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........50-55.
* MIN HUMIDITY...........52-67 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 5 TO 11 MPH WITH LOCAL GUSTS
UP TO 20 MPH.
* MIXING HEIGHT..........1900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ216-280000-
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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 IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........49-54.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........76-89 PERCENT.
* 24 HR TREND..........9 PERCENT DOWN.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2600 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. PATCHY DENSE FOG EARLY IN THE MORNING.
* MIN TEMPERATURE........35-40.
* MAX HUMIDITY...........71-86 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 6 TO 12 MPH WITH LOCAL GUSTS
UP TO 20 MPH.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY
IN THE LATE MORNING AND EARLY AFTERNOON THEN BECOMING PARTLY
CLOUDY. PATCHY DENSE FOG EARLY IN THE MORNING.
* MAX TEMPERATURE........47-52.
* MIN HUMIDITY...........57-72 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 5 TO 11 MPH. LOCAL GUSTS UP TO
20 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........1600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ217-280000-
SOUTHERN SACRAMENTO VALLEY IN YOLO-
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY
BELOW 1000 FT-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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 IN THE MORNING THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE........50-55.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........80-95 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTH WINDS 4 TO 10 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2600 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. PATCHY DENSE FOG AFTER MIDNIGHT.
* MIN TEMPERATURE........37-42.
* MAX HUMIDITY...........75-90 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 7 TO 13 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING. PATCHY FOG EARLY IN THE MORNING.
* MAX TEMPERATURE........46-51.
* MIN HUMIDITY...........62-77 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........1600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ218-280000-
CARQUINEZ STRAIT AND DELTA-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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........51-56.
* 24 HR TREND..........5 DEGREES COOLER.
* MIN HUMIDITY...........81-87 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 10 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR IN THE EVENING THEN BECOMING
MOSTLY CLOUDY.
* MIN TEMPERATURE........38-43.
* MAX HUMIDITY...........79-94 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH. LOCAL GUSTS UP
TO 20 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........48-53.
* MIN HUMIDITY...........64-79 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........1700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ219-280000-
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS
COUNTIES BELOW 1000 FT-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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 IN THE MORNING THEN BECOMING
MOSTLY CLOUDY.
* MAX TEMPERATURE........50-55.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........80-92 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2500 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR UNTIL EARLY MORNING THEN
BECOMING MOSTLY CLOUDY. PATCHY DENSE FOG IN THE LATE EVENING AND
OVERNIGHT.
* MIN TEMPERATURE........37-42.
* MAX HUMIDITY...........81-96 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* MIXING HEIGHT..........800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY
LATE IN THE MORNING THEN BECOMING MOSTLY SUNNY. PATCHY FOG IN THE
MORNING.
* MAX TEMPERATURE........47-52.
* MIN HUMIDITY...........64-79 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........1500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ263-279-280000-
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-
GLENN UNIT-EASTERN MENDOCINO NF-
123 PM PST FRI DEC 26 2025
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 35-44
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........63-70 PERCENT LOWER ELEVATIONS...EXCEPT
51-59 PERCENT HIGH ELEVATIONS.
* 24 HR TREND..........25 PERCENT DOWN.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 10 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 10 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........1800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY
AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE........35-40 LOWER ELEVATIONS...EXCEPT 29-35
HIGHER ELEVATIONS.
* MAX HUMIDITY...........56-71 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........53-58 LOWER ELEVATIONS...EXCEPT 42-50
HIGHER ELEVATIONS.
* MIN HUMIDITY...........40-55 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........1700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ266-280000-
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS
OF SHASTA-TRINITY AND BUTTE UNITS-
123 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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
IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE........46-51.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........59-74 PERCENT.
* 24 HR TREND..........22 PERCENT DOWN.
* 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.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........2200 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........32-37.
* MAX HUMIDITY...........64-79 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 7 TO 13 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 7 TO 13 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........49-54.
* MIN HUMIDITY...........48-63 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........1400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ220-267-280000-
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 PM PST FRI DEC 26 2025
..WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING
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
IN THE MORNING, THEN PARTLY CLOUDY IN THE AFTERNOON.
* MAX TEMPERATURE........47-52.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........85-96 PERCENT LOWER ELEVATIONS...EXCEPT
73-85 PERCENT HIGH ELEVATIONS.
* 24 HR TREND..........6 PERCENT DOWN.
* 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.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR UNTIL EARLY MORNING THEN
BECOMING MOSTLY CLOUDY. AT LOWER ELEVATIONS, PATCHY FOG AFTER
MIDNIGHT.
* MIN TEMPERATURE........31-36.
* MAX HUMIDITY...........74-89 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING. PATCHY DENSE FOG EARLY IN THE MORNING.
* MAX TEMPERATURE........47-52.
* MIN HUMIDITY...........60-75 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 10 MPH SHIFTING TO THE
NORTHWEST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........1600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ268-280000-
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 PM PST FRI DEC 26 2025
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 SNOW
IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE........37-42 LOWER ELEVATIONS...EXCEPT 30-37
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........61-76 PERCENT.
* 24 HR TREND..........19 PERCENT DOWN.
* 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.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........2000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........18-28.
* MAX HUMIDITY...........68-83 PERCENT...EXCEPT 82-97 PERCENT IN
THE HIGH MOUNTAIN VALLEYS.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 9 TO 15 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 9 TO 15 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........37-45 LOWER ELEVATIONS...EXCEPT 32-40
HIGHER ELEVATIONS.
* MIN HUMIDITY...........50-65 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 8 TO 14 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 8 TO 14 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* MIXING HEIGHT..........1200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ221-269-280000-
STANISLAUS NF WEST OF THE SIERRA CREST-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
123 PM PST FRI DEC 26 2025
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............PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW
IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE........42-47 LOWER ELEVATIONS...EXCEPT 30-39
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........57-72 PERCENT.
* 24 HR TREND..........21 PERCENT DOWN.
* 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.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........2100 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR UNTIL EARLY MORNING THEN
BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE........28-34 LOWER ELEVATIONS...EXCEPT 16-26
HIGHER ELEVATIONS.
* MAX HUMIDITY...........66-81 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 8 TO 14 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 8 TO 14 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY EARLY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........45-51 LOWER ELEVATIONS...EXCEPT 33-43
HIGHER ELEVATIONS.
* MIN HUMIDITY...........51-66 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...EAST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....EAST WINDS 6 TO 12 MPH WITH LOCAL GUSTS UP
TO 25 MPH.
* MIXING HEIGHT..........1200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
EXTENDED
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
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 15 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.
WEDNESDAY
MOSTLY SUNNY. HIGHS 48 TO 56. VARIABLE LESS THAN
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 30 TO 40. VARIABLE LESS
THAN 5 MPH.
...NORTHERN SIERRA AND LASSEN PARK
SUNDAY NIGHT
CLEAR. LOWS 23 TO 33. NORTHEAST WINDS 10 TO
20 MPH.
MONDAY
SUNNY. HIGHS 45 TO 55. NORTHEAST WINDS 10 TO 20 MPH.
MONDAY NIGHT
CLEAR. LOWS 26 TO 36. NORTHEAST WINDS 5 TO
15 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.
WEDNESDAY
MOSTLY SUNNY. HIGHS 49 TO 59. VARIABLE LESS THAN
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 30 TO 40. VARIABLE LESS THAN 5 MPH.
...SIERRA NEVADA FOOTHILLS
SUNDAY NIGHT
CLEAR. LOWS 33 TO 38. NORTHEAST WINDS 5 TO
15 MPH.
MONDAY
SUNNY. HIGHS 51 TO 57. NORTHEAST WINDS 10 TO 20 MPH.
MONDAY NIGHT
CLEAR. LOWS 35 TO 40. NORTHEAST WINDS 5 TO
15 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.
WEDNESDAY
MOSTLY SUNNY. HIGHS 54 TO 60. VARIABLE LESS THAN
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 39 TO 44. VARIABLE LESS THAN 5 MPH.
...CENTRAL VALLEY AND DELTA
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 41. NORTH WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 48 TO 53. NORTH WINDS 5 TO 15 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 40. NORTHEAST WINDS UP
TO 10 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.
WEDNESDAY
MOSTLY CLOUDY. HIGHS 49 TO 54. VARIABLE LESS THAN
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 39 TO 44. VARIABLE LESS THAN 5 MPH.
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