904
FNUS56 KSTO 102043
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
143 PM PDT THU JUL 10 2025
DISCUSSION
WARMING AND DRYING TREND CONTINUES TODAY AND THROUGH THE WEEKEND.
LOCALLY BREEZY NORTHERLY WINDS DEVELOP TONIGHT INTO FRIDAY
MORNING, MAINLY OVER THE WEST SIDE OF THE SACRAMENTO VALLEY AND
ADJACENT HIGHER TERRAIN. POOR OVERNIGHT RECOVERIES ANTICIPATED
NOW THROUGH THE WEEKEND OVER HIGHER TERRAIN.
CAZ213-112045-
EASTERN PORTION OF SHASTA-TRINITY NF-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........69-74 LOWER ELEVATIONS...EXCEPT 59-69
HIGHER ELEVATIONS.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........45-60 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........103-108 LOWER ELEVATIONS...EXCEPT 92-102
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES WARMER.
* MIN HUMIDITY...........13-18 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 9 MPH IN THE MORNING
BECOMING UPSLOPE UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 4 TO 10 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........10900 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........72-77 LOWER ELEVATIONS...EXCEPT 63-73
HIGHER ELEVATIONS.
* MAX HUMIDITY...........39-54 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH BECOMING NORTH UP
TO 7 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........104-109 LOWER ELEVATIONS...EXCEPT 93-103
HIGHER ELEVATIONS.
* MIN HUMIDITY...........13-22 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH IN THE MORNING
BECOMING UPSLOPE UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 11 MPH SHIFTING TO THE
SOUTHEAST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........11100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ214-112045-
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING
NORTHWEST LASSEN NF NORTH OF LASSEN NP-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY IN THE EVENING.
* MIN TEMPERATURE........56-61 LOWER ELEVATIONS...EXCEPT 51-60
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES WARMER.
* MAX HUMIDITY...........60-72 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........95-100 LOWER ELEVATIONS...EXCEPT 89-94
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES WARMER.
* MIN HUMIDITY...........15-20 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING NORTH UP
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........11100 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........57-64.
* MAX HUMIDITY...........45-60 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING DRAINAGE UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* MIXING HEIGHT..........900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........98-103 LOWER ELEVATIONS...EXCEPT 91-97
HIGHER ELEVATIONS.
* MIN HUMIDITY...........15-23 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....EAST WINDS UP TO 7 MPH SHIFTING TO THE NORTH
IN THE AFTERNOON.
* MIXING HEIGHT..........13100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ215-112045-
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW
1000 FT-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........70-76.
* 24 HR TREND..........4 DEGREES WARMER.
* MAX HUMIDITY...........43-51 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........106-112.
* 24 HR TREND..........4 DEGREES WARMER.
* MIN HUMIDITY...........14-19 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTH WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........9200 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........73-78.
* MAX HUMIDITY...........43-58 PERCENT.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 8 MPH SHIFTING TO THE
NORTH UP TO 7 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........104-111.
* MIN HUMIDITY...........14-29 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 7 MPH SHIFTING TO THE
SOUTH UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ216-112045-
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........66-72.
* 24 HR TREND..........4 DEGREES WARMER.
* MAX HUMIDITY...........50-65 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 8 MPH SHIFTING TO THE
NORTH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........101-106.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........20-28 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........NORTH WINDS UP TO 8 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........67-73.
* MAX HUMIDITY...........51-66 PERCENT.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........99-104.
* MIN HUMIDITY...........19-34 PERCENT.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........4700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ217-112045-
SOUTHERN SACRAMENTO VALLEY IN YOLO-
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY
BELOW 1000 FT-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........60-68.
* 24 HR TREND..........4 DEGREES WARMER.
* MAX HUMIDITY...........57-72 PERCENT.
* 24 HR TREND..........5 PERCENT DOWN.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 10 MPH. LOCAL GUSTS UP TO
20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........101-106.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........19-25 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........61-69.
* MAX HUMIDITY...........55-70 PERCENT.
* 20-FOOT WINDS..........SOUTHWEST WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........95-101.
* MIN HUMIDITY...........21-36 PERCENT.
* 20-FOOT WINDS..........SOUTHWEST WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........3200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ218-112045-
CARQUINEZ STRAIT AND DELTA-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........57-62.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........70-85 PERCENT.
* 24 HR TREND..........4 PERCENT DOWN.
* 20-FOOT WINDS..........WEST WINDS 7 TO 13 MPH WITH LOCAL GUSTS UP
TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........91-101.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........23-35 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 7 TO 13 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........58-63.
* MAX HUMIDITY...........72-87 PERCENT.
* 20-FOOT WINDS..........WEST WINDS 9 TO 15 MPH WITH LOCAL GUSTS UP
TO 25 MPH.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-94.
* MIN HUMIDITY...........48-63 PERCENT.
* 20-FOOT WINDS..........WEST WINDS 8 TO 14 MPH WITH LOCAL GUSTS UP
TO 25 MPH.
* MIXING HEIGHT..........1700 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ219-112045-
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS
COUNTIES BELOW 1000 FT-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........63-69.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........46-61 PERCENT.
* 24 HR TREND..........11 PERCENT DOWN.
* 20-FOOT WINDS..........NORTHWEST WINDS 6 TO 12 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........100-105.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........17-22 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........64-70.
* MAX HUMIDITY...........46-61 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........97-102.
* MIN HUMIDITY...........17-32 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 10 MPH.
* MIXING HEIGHT..........3400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ263-279-112045-
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-
GLENN UNIT-EASTERN MENDOCINO NF-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........74-79 LOWER ELEVATIONS...EXCEPT 64-72
HIGHER ELEVATIONS.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........35-43 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 11 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........103-108 LOWER ELEVATIONS...EXCEPT 86-96
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES WARMER.
* MIN HUMIDITY...........15-23 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 9 MPH SHIFTING TO THE EAST
UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........9000 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........75-80 LOWER ELEVATIONS...EXCEPT 67-73
HIGHER ELEVATIONS.
* MAX HUMIDITY...........32-47 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........102-107 LOWER ELEVATIONS...EXCEPT 86-96
HIGHER ELEVATIONS.
* MIN HUMIDITY...........17-32 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 7 MPH SHIFTING TO THE EAST
UP TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 8 MPH SHIFTING TO THE EAST
4 TO 9 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ266-112045-
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS
OF SHASTA-TRINITY AND BUTTE UNITS-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........68-75.
* 24 HR TREND..........4 DEGREES WARMER.
* MAX HUMIDITY...........32-47 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHEAST 4 TO 9 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
NORTHEAST UP TO 8 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........94-105.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........16-23 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........7000 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........71-78.
* MAX HUMIDITY...........34-49 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 8 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........98-104 LOWER ELEVATIONS...EXCEPT 92-100
HIGHER ELEVATIONS.
* MIN HUMIDITY...........19-34 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS UP TO 8 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT..........5000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ220-267-112045-
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-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........65-72.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........38-46 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING DRAINAGE UP TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 7 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........93-102.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........17-22 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........5700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........68-73.
* MAX HUMIDITY...........36-51 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 7 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING VARIABLE UP TO 5 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........92-101.
* MIN HUMIDITY...........15-28 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ268-112045-
NORTHERN SIERRA INCLUDING LASSEN NP AND PLUMAS AND LASSEN NF/S
WEST OF THE SIERRA CREST (WEST OF EVANS PEAK-GRIZZLY PEAK-
BECKWORTH PEAK)-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR. HAZY.
* MIN TEMPERATURE........54-65.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........42-57 PERCENT...EXCEPT 59-67 PERCENT IN
THE HIGH MOUNTAIN VALLEYS.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 7 MPH SHIFTING TO THE
NORTHEAST 4 TO 10 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHEAST 5 TO 11 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........88-96 LOWER ELEVATIONS...EXCEPT 81-89
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........17-25 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 4 TO 10 MPH SHIFTING TO THE
WEST 4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS 5 TO 11 MPH SHIFTING TO THE
SOUTHWEST UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........9200 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........57-68.
* MAX HUMIDITY...........41-56 PERCENT...EXCEPT 50-65 PERCENT IN
THE HIGH MOUNTAIN VALLEYS.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHEAST UP TO 7 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* MIXING HEIGHT..........600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........88-96 LOWER ELEVATIONS...EXCEPT 82-90
HIGHER ELEVATIONS.
* MIN HUMIDITY...........19-34 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS UP TO 8 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST WINDS 4 TO 10 MPH SHIFTING TO THE
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........9200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ221-269-112045-
STANISLAUS NF WEST OF THE SIERRA CREST-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
143 PM PDT THU JUL 10 2025
TONIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........62-69 LOWER ELEVATIONS...EXCEPT 51-61
HIGHER ELEVATIONS.
* 24 HR TREND..........5 DEGREES WARMER.
* MAX HUMIDITY...........35-49 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
NORTHEAST UP TO 8 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 8 MPH SHIFTING TO THE
EAST 4 TO 9 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........89-94 LOWER ELEVATIONS...EXCEPT 78-88
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........19-24 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS UP TO 8 MPH SHIFTING TO THE
WEST 4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS 4 TO 9 MPH SHIFTING TO THE
SOUTHWEST 5 TO 11 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........5900 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........66-72 LOWER ELEVATIONS...EXCEPT 54-64
HIGHER ELEVATIONS.
* MAX HUMIDITY...........39-54 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH IN THE EVENING
BECOMING DRAINAGE UP TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 10 MPH SHIFTING TO THE EAST
UP TO 8 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
SATURDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........89-95 LOWER ELEVATIONS...EXCEPT 78-88
HIGHER ELEVATIONS.
* MIN HUMIDITY...........21-36 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...EAST WINDS UP TO 7 MPH SHIFTING TO THE WEST
4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS UP TO 8 MPH SHIFTING TO THE WEST
4 TO 10 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
EXTENDED
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
SATURDAY NIGHT
CLEAR. LOWS 62 TO 72. WEST WINDS UP TO 10 MPH.
SUNDAY
SUNNY. HIGHS 90 TO 100. EAST WINDS UP TO 10 MPH.
SUNDAY NIGHT
CLEAR. LOWS 62 TO 72. WEST WINDS UP TO 13 MPH.
MONDAY
SUNNY. HIGHS 90 TO 100. EAST WINDS UP TO 10 MPH.
MONDAY NIGHT
CLEAR. LOWS 61 TO 70. WEST WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 86 TO 96. SOUTHEAST WINDS UP TO 10 MPH.
TUESDAY NIGHT
CLEAR. LOWS 58 TO 67. SOUTHWEST WINDS UP TO
10 MPH.
...NORTHERN SIERRA AND LASSEN PARK
SATURDAY NIGHT
CLEAR. LOWS 60 TO 70. EAST WINDS UP TO 10 MPH.
SUNDAY
SUNNY. HIGHS 88 TO 98. WEST WINDS UP TO 10 MPH.
SUNDAY NIGHT
CLEAR. LOWS 61 TO 71. EAST WINDS UP TO 10 MPH.
MONDAY
SUNNY. HIGHS 89 TO 98. SOUTHWEST WINDS UP TO 10 MPH.
MONDAY NIGHT
CLEAR. LOWS 59 TO 69. VARIABLE LESS THAN 5 MPH.
TUESDAY
SUNNY. HIGHS 86 TO 94. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
CLEAR. LOWS 56 TO 66. VARIABLE LESS THAN 5 MPH.
...SIERRA NEVADA FOOTHILLS
SATURDAY NIGHT
CLEAR. LOWS 66 TO 73. EAST WINDS UP TO 10 MPH.
SUNDAY
SUNNY. HIGHS 93 TO 100. WEST WINDS UP TO 10 MPH.
SUNDAY NIGHT
CLEAR. LOWS 66 TO 73. EAST WINDS UP TO 10 MPH.
MONDAY
SUNNY. HIGHS 94 TO 101. WEST WINDS UP TO 10 MPH.
MONDAY NIGHT
CLEAR. LOWS 64 TO 71. EAST WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 91 TO 96. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
CLEAR. LOWS 61 TO 68. EAST WINDS UP TO 10 MPH.
...CENTRAL VALLEY AND DELTA
SATURDAY NIGHT
CLEAR. LOWS 58 TO 67. SOUTHWEST WINDS 5 TO
15 MPH.
SUNDAY
SUNNY. HIGHS 97 TO 102. SOUTHWEST WINDS UP TO 13 MPH.
SUNDAY NIGHT
CLEAR. LOWS 58 TO 68. SOUTH WINDS 5 TO 15 MPH.
MONDAY
SUNNY. HIGHS 98 TO 103. SOUTHWEST WINDS UP TO 10 MPH.
MONDAY NIGHT
CLEAR. LOWS 57 TO 66. SOUTH WINDS 5 TO 15 MPH.
TUESDAY
SUNNY. HIGHS 92 TO 98. SOUTHWEST WINDS UP TO 13 MPH.
TUESDAY NIGHT
CLEAR. LOWS 56 TO 62. SOUTHWEST WINDS 5 TO
15 MPH.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page