353  
FNUS56 KSTO 150731  
FWFSTO  
 
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
1230 AM PDT FRI AUG 15 2025  
 
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST  
DISCUSSION IS FROM THE PREVIOUS DAY.  
 
   
DISCUSSION  
 
NEAR TO BELOW NORMAL TEMPERATURES CONTINUE ACROSS THE REGION  
THROUGH THE WEEKEND WITH PERIODICALLY BREEZY ONSHORE FLOW AND  
HIGHER RELATIVE HUMIDITY. THERE IS A 15-30% CHANCE OF SHOWERS OR  
THUNDERSTORMS OVER THE COAST RANGE, SOUTHERN CASCADES, SHASTA  
COUNTY MOUNTAINS AND THE NORTHERN SACRAMENTO VALLEY ON SATURDAY  
AND SUNDAY. A GRADUAL WARMING AND DRYING TREND IS FAVORED FOR NEXT  
WEEK.  
 
CAZ213-160000-  
EASTERN PORTION OF SHASTA-TRINITY NF-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........94-99 LOWER ELEVATIONS...EXCEPT 83-92  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........20-29 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH SHIFTING TO THE WEST  
4 TO 9 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH SHIFTING TO THE WEST  
IN THE AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........8800 FT AGL.  
* CHANCE OF THUNDER......3 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........64-69 LOWER ELEVATIONS...EXCEPT 54-64  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........69-84 PERCENT.  
* 24 HR TREND..........22 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 10 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 4 TO 10 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........700 FT AGL.  
* CHANCE OF THUNDER......3 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY IN THE MORNING, THEN PARTLY  
CLOUDY WITH A SLIGHT CHANCE OF SHOWERS EARLY IN THE AFTERNOON.  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
LATE IN THE AFTERNOON.  
* MAX TEMPERATURE........86-91 LOWER ELEVATIONS...EXCEPT 74-84  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........44-59 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST  
UP TO 7 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 8 MPH SHIFTING TO THE  
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........6200 FT AGL.  
* CWR....................10 PERCENT.  
* CHANCE OF THUNDER......17 PERCENT.  
 
 
 
CAZ214-160000-  
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING  
NORTHWEST LASSEN NF NORTH OF LASSEN NP-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........87-92 LOWER ELEVATIONS...EXCEPT 81-86  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........19-24 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST 4 TO  
9 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING  
NORTHWEST 4 TO 9 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE  
AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........8900 FT AGL.  
* CHANCE OF THUNDER......3 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........54-59 LOWER ELEVATIONS...EXCEPT 48-57  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........74-87 PERCENT.  
* 24 HR TREND..........20 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH WITH LOCAL GUSTS UP TO  
20 MPH IN THE EVENING BECOMING DRAINAGE UP TO 5 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH WITH LOCAL GUSTS  
UP TO 20 MPH IN THE EVENING BECOMING VARIABLE UP TO 5 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........800 FT AGL.  
* CHANCE OF THUNDER......3 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY IN THE MORNING, THEN A SLIGHT  
CHANCE OF SHOWERS EARLY IN THE AFTERNOON. PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE AFTERNOON.  
* MAX TEMPERATURE........81-86 LOWER ELEVATIONS...EXCEPT 75-81  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........38-53 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST 4 TO  
9 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST 4  
TO 9 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........7600 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......14 PERCENT.  
 
 
 
CAZ215-160000-  
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW  
1000 FT-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........97-102.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........19-24 PERCENT.  
* 24 HR TREND..........5 PERCENT DOWN.  
* 20-FOOT WINDS..........NORTHWEST WINDS 5 TO 11 MPH WITH LOCAL  
GUSTS UP TO 20 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........9600 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........66-71.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........64-72 PERCENT.  
* 24 HR TREND..........18 PERCENT UP.  
* 20-FOOT WINDS..........NORTHWEST WINDS 5 TO 11 MPH. LOCAL GUSTS  
UP TO 25 MPH IN THE EVENING.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........700 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY.  
* MAX TEMPERATURE........88-93.  
* MIN HUMIDITY...........37-52 PERCENT.  
* 20-FOOT WINDS..........SOUTH WINDS UP TO 8 MPH.  
* MIXING HEIGHT..........6100 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......9 PERCENT.  
 
 
 
CAZ216-160000-  
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN  
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........95-100.  
* 24 HR TREND..........4 DEGREES WARMER.  
* MIN HUMIDITY...........25-34 PERCENT.  
* 24 HR TREND..........9 PERCENT DOWN.  
* 20-FOOT WINDS..........NORTH WINDS UP TO 8 MPH SHIFTING TO THE  
SOUTH 6 TO 12 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........6200 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........63-68.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........74-88 PERCENT.  
* 24 HR TREND..........11 PERCENT UP.  
* 20-FOOT WINDS..........SOUTHWEST WINDS 6 TO 12 MPH WITH LOCAL  
GUSTS UP TO 20 MPH SHIFTING TO THE SOUTHEAST 5 TO 11 MPH AFTER  
MIDNIGHT.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........500 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........86-91.  
* MIN HUMIDITY...........44-59 PERCENT.  
* 20-FOOT WINDS..........SOUTHEAST WINDS 4 TO 9 MPH.  
* MIXING HEIGHT..........4400 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......4 PERCENT.  
 
 
 
CAZ217-160000-  
SOUTHERN SACRAMENTO VALLEY IN YOLO-  
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY  
BELOW 1000 FT-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........93-98.  
* 24 HR TREND..........4 DEGREES WARMER.  
* MIN HUMIDITY...........26-34 PERCENT.  
* 24 HR TREND..........5 PERCENT DOWN.  
* 20-FOOT WINDS..........SOUTHWEST WINDS 4 TO 10 MPH. LOCAL GUSTS  
UP TO 20 MPH IN THE AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........5500 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........61-66.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........78-88 PERCENT.  
* 24 HR TREND..........5 PERCENT UP.  
* 20-FOOT WINDS..........SOUTH WINDS 6 TO 12 MPH WITH LOCAL GUSTS  
UP TO 20 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........600 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........85-90.  
* MIN HUMIDITY...........41-56 PERCENT.  
* 20-FOOT WINDS..........SOUTH WINDS 5 TO 11 MPH. LOCAL GUSTS UP TO  
20 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........4700 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......1 PERCENT.  
 
 
 
CAZ218-160000-  
CARQUINEZ STRAIT AND DELTA-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........89-94.  
* 24 HR TREND..........4 DEGREES WARMER.  
* MIN HUMIDITY...........34-42 PERCENT.  
* 24 HR TREND..........5 PERCENT DOWN.  
* 20-FOOT WINDS..........WEST WINDS 8 TO 14 MPH WITH LOCAL GUSTS UP  
TO 25 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........3300 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........62-67.  
* 24 HR TREND..........4 DEGREES WARMER.  
* MAX HUMIDITY...........81-86 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........SOUTHWEST WINDS 11 TO 17 MPH WITH LOCAL  
GUSTS UP TO 30 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........700 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........80-86.  
* MIN HUMIDITY...........57-72 PERCENT.  
* 20-FOOT WINDS..........SOUTHWEST WINDS 9 TO 15 MPH WITH LOCAL  
GUSTS UP TO 30 MPH.  
* MIXING HEIGHT..........3400 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......1 PERCENT.  
 
 
 
CAZ219-160000-  
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS  
COUNTIES BELOW 1000 FT-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........92-97.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........28-34 PERCENT.  
* 24 HR TREND..........5 PERCENT DOWN.  
* 20-FOOT WINDS..........NORTHWEST WINDS 8 TO 14 MPH. LOCAL GUSTS  
UP TO 25 MPH IN THE AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........4900 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........61-66.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........79-89 PERCENT.  
* 24 HR TREND..........6 PERCENT UP.  
* 20-FOOT WINDS..........WEST WINDS 13 TO 19 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........600 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........82-88.  
* MIN HUMIDITY...........42-57 PERCENT.  
* 20-FOOT WINDS..........WEST WINDS 9 TO 15 MPH.  
* MIXING HEIGHT..........4400 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......0 PERCENT.  
 
 
 
CAZ263-279-160000-  
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-  
GLENN UNIT-EASTERN MENDOCINO NF-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........92-97 LOWER ELEVATIONS...EXCEPT 77-87  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........24-34 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 8 TO 14 MPH WITH LOCAL GUSTS  
UP TO 25 MPH.  
* RIDGES/UPR SLOPES....NORTHWEST WINDS 8 TO 14 MPH WITH LOCAL GUSTS  
UP TO 25 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........7100 FT AGL.  
* CHANCE OF THUNDER......2 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........67-72 LOWER ELEVATIONS...EXCEPT 56-63  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........60-72 PERCENT.  
* 24 HR TREND..........22 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH WITH LOCAL GUSTS UP  
TO 30 MPH.  
* RIDGES/UPR SLOPES....WEST WINDS 9 TO 15 MPH WITH LOCAL GUSTS UP  
TO 30 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........700 FT AGL.  
* CHANCE OF THUNDER......2 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY IN THE MORNING, THEN PARTLY  
CLOUDY WITH A SLIGHT CHANCE OF SHOWERS EARLY IN THE AFTERNOON.  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
LATE IN THE AFTERNOON.  
* MAX TEMPERATURE........85-90 LOWER ELEVATIONS...EXCEPT 69-79  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........40-55 PERCENT LOWER ELEVATIONS...EXCEPT  
52-67 PERCENT HIGH ELEVATIONS.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 12 MPH SHIFTING TO THE  
SOUTH UP TO 8 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.  
* MIXING HEIGHT..........4600 FT AGL.  
* CWR....................10 PERCENT.  
* CHANCE OF THUNDER......15 PERCENT.  
 
 
 
CAZ266-160000-  
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS  
OF SHASTA-TRINITY AND BUTTE UNITS-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........91-96 LOWER ELEVATIONS...EXCEPT 86-92  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........21-27 PERCENT.  
* 24 HR TREND..........5 PERCENT DOWN.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 4 TO 9 MPH.  
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........8000 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............MOSTLY CLEAR.  
* MIN TEMPERATURE........63-68.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........60-72 PERCENT.  
* 24 HR TREND..........18 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH SHIFTING TO THE EAST  
UP TO 7 MPH AFTER MIDNIGHT.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING  
BECOMING VARIABLE UP TO 5 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........600 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY.  
* MAX TEMPERATURE........83-88 LOWER ELEVATIONS...EXCEPT 78-84  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........46-61 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 8 MPH.  
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING  
SOUTHWEST UP TO 8 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........5100 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......4 PERCENT.  
 
 
 
CAZ220-267-160000-  
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-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........87-92.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........26-31 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST 4 TO  
9 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..........5600 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........59-64.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........68-83 PERCENT.  
* 24 HR TREND..........20 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING  
BECOMING DRAINAGE UP TO 5 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING  
BECOMING VARIABLE UP TO 5 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........500 FT AGL.  
* CHANCE OF THUNDER......0 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........81-86.  
* MIN HUMIDITY...........35-50 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST  
UP TO 8 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING  
SOUTHWEST UP TO 8 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........4500 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......0 PERCENT.  
 
 
 
CAZ268-160000-  
NORTHERN SIERRA INCLUDING LASSEN NP AND PLUMAS AND LASSEN NF/S  
WEST OF THE SIERRA CREST (WEST OF EVANS PEAK-GRIZZLY PEAK-  
BECKWORTH PEAK)-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........80-88 LOWER ELEVATIONS...EXCEPT 74-82  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........21-30 PERCENT.  
* 24 HR TREND..........LITTLE CHANGE.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 4 TO 9 MPH SHIFTING TO THE  
WEST 5 TO 11 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....NORTHEAST WINDS 4 TO 9 MPH SHIFTING TO THE  
WEST 5 TO 11 MPH IN THE AFTERNOON.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........7400 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........50-60.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........65-80 PERCENT...EXCEPT 80-91 PERCENT IN  
THE HIGH MOUNTAIN VALLEYS.  
* 24 HR TREND..........18 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 10 MPH IN THE EVENING  
BECOMING DRAINAGE UP TO 5 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 10 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........500 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............MOSTLY SUNNY.  
* MAX TEMPERATURE........73-81 LOWER ELEVATIONS...EXCEPT 67-75  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........40-55 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH.  
* MIXING HEIGHT..........5600 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......6 PERCENT.  
 
 
 
CAZ221-269-160000-  
STANISLAUS NF WEST OF THE SIERRA CREST-  
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE  
SIERRA CREST-  
1230 AM PDT FRI AUG 15 2025  
   
TODAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........83-88 LOWER ELEVATIONS...EXCEPT 71-81  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MIN HUMIDITY...........21-30 PERCENT.  
* 24 HR TREND..........5 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS UP TO 7 MPH SHIFTING TO THE  
WEST 4 TO 9 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........5600 FT AGL.  
* CHANCE OF THUNDER......2 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER............CLEAR.  
* MIN TEMPERATURE........56-64 LOWER ELEVATIONS...EXCEPT 45-55  
HIGHER ELEVATIONS.  
* 24 HR TREND..........LITTLE CHANGE.  
* MAX HUMIDITY...........62-77 PERCENT.  
* 24 HR TREND..........18 PERCENT UP.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...SOUTH WINDS UP TO 8 MPH IN THE EVENING  
BECOMING DRAINAGE UP TO 5 MPH.  
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH SHIFTING TO THE  
SOUTHEAST UP TO 8 MPH AFTER MIDNIGHT.  
* CWR....................0 PERCENT.  
* MIXING HEIGHT..........500 FT AGL.  
* CHANCE OF THUNDER......1 PERCENT.  
   
SATURDAY  
 
* SKY/WEATHER............SUNNY.  
* MAX TEMPERATURE........77-83 LOWER ELEVATIONS...EXCEPT 65-75  
HIGHER ELEVATIONS.  
* MIN HUMIDITY...........37-52 PERCENT.  
* 20-FOOT WINDS..........  
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST  
5 TO 11 MPH IN THE AFTERNOON.  
* RIDGES/UPR SLOPES....SOUTH WINDS 6 TO 12 MPH. LOCAL GUSTS UP TO  
25 MPH IN THE AFTERNOON.  
* MIXING HEIGHT..........4900 FT AGL.  
* CWR....................0 PERCENT.  
* CHANCE OF THUNDER......2 PERCENT.  
 
 
 
   
EXTENDED  
 
 
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE   
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS  
54 TO 62. NORTHWEST WINDS 5 TO 15 MPH.    
SUNDAY  
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 69 TO 79. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS 49 TO 58. SOUTHWEST WINDS UP  
TO 10 MPH.    
MONDAY  
SUNNY. HIGHS 71 TO 81. SOUTHEAST WINDS UP TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS 49 TO 59. VARIABLE LESS THAN 5 MPH.    
TUESDAY  
SUNNY. HIGHS 76 TO 86. VARIABLE LESS THAN 5 MPH.    
TUESDAY NIGHT  
CLEAR. LOWS 52 TO 62. VARIABLE LESS THAN 5 MPH.  
 
...NORTHERN SIERRA AND LASSEN PARK   
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.  
LOWS 50 TO 60. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS  
72 TO 81. SOUTH WINDS 5 TO 15 MPH.    
SUNDAY NIGHT  
CLEAR. LOWS 47 TO 57. SOUTHEAST WINDS UP TO  
10 MPH.    
MONDAY  
SUNNY. HIGHS 73 TO 82. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS 48 TO 58. VARIABLE LESS THAN 5 MPH.    
TUESDAY  
SUNNY. HIGHS 78 TO 87. SOUTHWEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT  
CLEAR. LOWS 50 TO 60. VARIABLE LESS THAN 5 MPH.  
 
...SIERRA NEVADA FOOTHILLS   
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.  
LOWS 58 TO 64. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY  
MOSTLY SUNNY. HIGHS 78 TO 83. SOUTHWEST WINDS 5 TO  
15 MPH.    
SUNDAY NIGHT  
CLEAR. LOWS 55 TO 60. SOUTHEAST WINDS UP TO  
10 MPH.    
MONDAY  
SUNNY. HIGHS 80 TO 85. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS 57 TO 62. VARIABLE LESS THAN 5 MPH.    
TUESDAY  
SUNNY. HIGHS 84 TO 89. VARIABLE LESS THAN 5 MPH.    
TUESDAY NIGHT  
CLEAR. LOWS 60 TO 65. VARIABLE LESS THAN 5 MPH.  
 
...CENTRAL VALLEY AND DELTA   
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS 60 TO 65. SOUTHWEST WINDS  
10 TO 20 MPH.    
SUNDAY  
MOSTLY SUNNY. HIGHS 82 TO 87. SOUTH WINDS 5 TO 15 MPH.    
SUNDAY NIGHT  
CLEAR. LOWS 54 TO 59. SOUTH WINDS 5 TO 15 MPH.    
MONDAY  
SUNNY. HIGHS 83 TO 88. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT  
CLEAR. LOWS 54 TO 59. SOUTH WINDS UP TO 10 MPH.    
TUESDAY  
SUNNY. HIGHS 88 TO 93. WEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT  
CLEAR. LOWS 56 TO 61. SOUTHWEST WINDS UP TO  
10 MPH.  
 
 
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