916
FNUS56 KEKA 012301
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE EUREKA CA
401 PM PDT SAT AUG 1 2026
...ELEVATED FIRE WEATHER CONDITIONS IN ALL INTERIOR AREAS THIS
AFTERNOON AND SUNDAY AFTERNOON DUE TO GUSTY ONSHORE WINDS AND LOW
AFTERNOON RH...
...ELEVATED TO LOCALLY CRITICAL FIRE WEATHER CONDITIONS FOR THE
HIGHER ELEVATIONS OF HUMBOLDT, DEL NORTE, WESTERN SISKIYOU, AND
TRINITY SUNDAY NIGHT INTO MONDAY MORNING DUE TO LOW OVERNIGHT RH
AND GUSTY OFFSHORE WINDS...
DISCUSSION
DRY CONDITIONS ARE EXPECTED LATE THIS WEEKEND AND
EARLY NEXT WEEK. STRONG ONSHORE WINDS ARE LIKELY TODAY, BUT
A SMALL INCREASE IN AFTERNOON RELATIVE HUMIDITY WILL KEEP
CONDITIONS FROM BECOMING CRITICAL. GUSTY EASTERLY WINDS ALONG
WITH LOW OVERNIGHT RH ARE FORECAST ON THE RIDGES OF HUMBOLDT,
TRINITY, DEL NORTE, AND SISKIYOU COUNTIES DURING THE OVERNIGHT
HOURS SATURDAY NIGHT THROUGH MONDAY NIGHT. LOWER RELATIVE HUMIDITY
AND HOTTER TEMPERATURES ARE EXPECTED EARLY NEXT WEEK WITH
WIDESPREAD 100 DEGREE WEATHER ACROSS THE INTERIOR.
CAZ401-021330-
COASTAL DEL NORTE-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...53-56
RIDGES/UPR SLOPES....51-54
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...78-91 PERCENT
RIDGES/UPR SLOPES....85-95 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 9 TO 19 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 12 TO 19 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...72-80
RIDGES/UPR SLOPES....71-79
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...49-59 PERCENT
RIDGES/UPR SLOPES....46-54 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 9 TO 19 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 12 TO 19 MPH.
* MIXING HEIGHT..........1600 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...55-58
RIDGES/UPR SLOPES....54-57
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...61-71 PERCENT
RIDGES/UPR SLOPES....60-70 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 10 TO 18 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 11 TO 18 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...76-84
RIDGES/UPR SLOPES....75-82
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...43-53 PERCENT
RIDGES/UPR SLOPES....43-50 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 9 TO 16 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 9 TO 16 MPH.
* MIXING HEIGHT..........1500 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ402-021330-
INTERIOR DEL NORTE INCLUDING THE SMITH RIVER VALLEY-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-54
RIDGES/UPR SLOPES....52-56
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...77-88 PERCENT
RIDGES/UPR SLOPES....62-77 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...78-86
RIDGES/UPR SLOPES....72-80
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...37-45 PERCENT
RIDGES/UPR SLOPES....32-40 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........3400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...54-57
RIDGES/UPR SLOPES....55-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...49-59 PERCENT
RIDGES/UPR SLOPES....38-48 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 10 TO 17 MPH.
RIDGES/UPR SLOPES....NORTHEAST WINDS 10 TO 17 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...84-92
RIDGES/UPR SLOPES....79-87
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...35-43 PERCENT
RIDGES/UPR SLOPES....31-39 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 6 TO 13 MPH...SHIFTING TO
THE NORTH 5 TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 9 TO 16 MPH.
* MIXING HEIGHT..........4300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ403-021330-
NORTHEASTERN INTERIOR HUMBOLDT AND SOUTHWESTERN SISKIYOU
INCLUDING ORLEANS-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...54-57
RIDGES/UPR SLOPES....53-56
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...65-80 PERCENT
RIDGES/UPR SLOPES....54-66 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 10 MPH...SHIFTING TO THE
NORTH 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...90-98
RIDGES/UPR SLOPES....75-83
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...16-24 PERCENT
RIDGES/UPR SLOPES....26-34 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 7 MPH...SHIFTING TO THE
NORTHWEST 5 TO 10 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........4700 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...55-58
RIDGES/UPR SLOPES....54-58
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...44-54 PERCENT
RIDGES/UPR SLOPES....31-41 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 10 MPH...SHIFTING TO
THE NORTHEAST AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTH WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY. PATCHY SMOKE LATE IN THE MORNING.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...99-107
RIDGES/UPR SLOPES....83-91
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...11-16 PERCENT
RIDGES/UPR SLOPES....14-22 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 8 MPH...SHIFTING TO
THE NORTH 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........6900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ404-021330-
NORTHERN COASTAL HUMBOLDT-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-55
RIDGES/UPR SLOPES....AROUND 53
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...90-100 PERCENT
RIDGES/UPR SLOPES....89 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...67-73
RIDGES/UPR SLOPES....AROUND 62
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...59-74 PERCENT
RIDGES/UPR SLOPES....71 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 14 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 7 TO 14 MPH.
* MIXING HEIGHT..........2000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-54
RIDGES/UPR SLOPES....AROUND 51
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...76-91 PERCENT
RIDGES/UPR SLOPES....86 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 14 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 7 TO 14 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...72-78
RIDGES/UPR SLOPES....AROUND 67
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...57-67 PERCENT
RIDGES/UPR SLOPES....57 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........1400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ405-021330-
NORTHWESTERN INTERIOR HUMBOLDT INCLUDING THE BALD HILLS-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...50-54
RIDGES/UPR SLOPES....50-56
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...83-98 PERCENT
RIDGES/UPR SLOPES....72-87 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...72-80
RIDGES/UPR SLOPES....69-77
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...55-65 PERCENT
RIDGES/UPR SLOPES....52-62 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........1900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...50-56
RIDGES/UPR SLOPES....51-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...61-76 PERCENT
RIDGES/UPR SLOPES....54-69 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 10 MPH...SHIFTING TO THE
NORTHEAST 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH...SHIFTING TO
THE NORTHEAST 5 TO 8 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...81-89
RIDGES/UPR SLOPES....77-85
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...43-53 PERCENT
RIDGES/UPR SLOPES....40-50 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE NORTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 11 MPH...SHIFTING TO
THE NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........2800 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ406-021330-
EASTERN INTERIOR HUMBOLDT INCLUDING WILLOW CREEK AND HOOPA-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...53-56
RIDGES/UPR SLOPES....54-57
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...75-90 PERCENT
RIDGES/UPR SLOPES....59-74 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...84-92
RIDGES/UPR SLOPES....70-78
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...32-40 PERCENT
RIDGES/UPR SLOPES....37-47 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........2400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...55-58
RIDGES/UPR SLOPES....56-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...49-59 PERCENT
RIDGES/UPR SLOPES....37-47 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH...SHIFTING TO
THE NORTH 5 TO 7 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 11 MPH...SHIFTING TO
THE NORTHEAST 5 TO 8 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...95-103
RIDGES/UPR SLOPES....81-89
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...16-24 PERCENT
RIDGES/UPR SLOPES....20-28 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...EAST WINDS 5 TO 6 MPH...SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....EAST WINDS 5 TO 9 MPH...SHIFTING TO THE
NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ407-021330-
SOUTHWESTERN HUMBOLDT INCLUDING THE KING RANGE AND THE EEL RIVER
VALLEY-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............PARTLY CLOUDY.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-55
RIDGES/UPR SLOPES....54-57
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...79-94 PERCENT
RIDGES/UPR SLOPES....67-82 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 11 TO 18 MPH.
RIDGES/UPR SLOPES....BREEZY. NORTH WINDS 14 TO 24 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...75-83
RIDGES/UPR SLOPES....65-73
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...48-58 PERCENT
RIDGES/UPR SLOPES....63-73 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 9 TO 16 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 13 TO 20 MPH.
* MIXING HEIGHT..........1900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-55
RIDGES/UPR SLOPES....52-58
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...69-84 PERCENT
RIDGES/UPR SLOPES....60-75 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 13 TO 20 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 13 TO 20 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...85-93
RIDGES/UPR SLOPES....74-82
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...35-43 PERCENT
RIDGES/UPR SLOPES....44-54 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 7 TO 14 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 7 TO 14 MPH.
* MIXING HEIGHT..........2500 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ408-021330-
SOUTHEASTERN INTERIOR HUMBOLDT INCLUDING KNEELAND AND ALDERPOINT-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-55
RIDGES/UPR SLOPES....49-56
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...84-99 PERCENT
RIDGES/UPR SLOPES....69-84 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 8 TO 15 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 8 TO 15 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...74-82
RIDGES/UPR SLOPES....67-75
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...57-67 PERCENT
RIDGES/UPR SLOPES....62-72 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........2000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-57
RIDGES/UPR SLOPES....51-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...67-82 PERCENT
RIDGES/UPR SLOPES....57-72 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH...SHIFTING TO
THE NORTH 5 TO 7 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...84-92
RIDGES/UPR SLOPES....76-84
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...40-50 PERCENT
RIDGES/UPR SLOPES....45-55 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 6 MPH...SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 7 MPH...SHIFTING TO
THE NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ409-021330-
NORTHWESTERN TRINITY INCLUDING SALYER AND BIG BAR-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-56
RIDGES/UPR SLOPES....53-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...70-85 PERCENT
RIDGES/UPR SLOPES....53-63 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...86-94
RIDGES/UPR SLOPES....76-84
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...23-31 PERCENT
RIDGES/UPR SLOPES....23-31 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 10 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........4600 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...54-59
RIDGES/UPR SLOPES....56-62
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...45-55 PERCENT
RIDGES/UPR SLOPES....31-41 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 10 MPH...SHIFTING TO THE
NORTH 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 10 MPH...SHIFTING TO
THE NORTHEAST 5 TO 10 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...97-105
RIDGES/UPR SLOPES....83-91
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...12-17 PERCENT
RIDGES/UPR SLOPES....14-20 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 10 MPH...SHIFTING TO
THE SOUTH 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........8000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ410-021330-
NORTHEASTERN TRINITY INCLUDING TRINITY LAKE-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...AROUND 60
RIDGES/UPR SLOPES....51-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...55-67 PERCENT
RIDGES/UPR SLOPES....44-54 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 8 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 11 MPH DECREASING TO
5 TO 10 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...92-100
RIDGES/UPR SLOPES....76-84
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...13-17 PERCENT
RIDGES/UPR SLOPES....17-24 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 MPH...SHIFTING TO THE SOUTH
IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........7000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...58-62
RIDGES/UPR SLOPES....51-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...36-46 PERCENT
RIDGES/UPR SLOPES....29-37 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........500 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...95-103
RIDGES/UPR SLOPES....80-88
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...10-15 PERCENT
RIDGES/UPR SLOPES....14-20 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 8 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 5
MPH.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 9 MPH...SHIFTING TO THE
EAST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........9400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ411-021330-
EASTERN TRINITY INCLUDING WEAVERVILLE AND HAYFORK-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...50-58
RIDGES/UPR SLOPES....53-58
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...66-81 PERCENT
RIDGES/UPR SLOPES....54-69 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...93-99
RIDGES/UPR SLOPES....81-89
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...14-19 PERCENT
RIDGES/UPR SLOPES....16-24 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 7 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 8 MPH.
* MIXING HEIGHT..........5700 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...53-61
RIDGES/UPR SLOPES....57-62
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...43-53 PERCENT
RIDGES/UPR SLOPES....37-47 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...98-105
RIDGES/UPR SLOPES....87-95
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...8-13 PERCENT
RIDGES/UPR SLOPES....13-18 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
EAST 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 7 MPH.
* MIXING HEIGHT..........9300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ412-021330-
SOUTHERN TRINITY INCLUDING RUTH LAKE AND THE YOLLA BOLLYS-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-57
RIDGES/UPR SLOPES....52-60
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...66-81 PERCENT
RIDGES/UPR SLOPES....54-69 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...87-95
RIDGES/UPR SLOPES....80-88
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...24-32 PERCENT
RIDGES/UPR SLOPES....25-33 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........5300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...56-61
RIDGES/UPR SLOPES....55-63
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...50-60 PERCENT
RIDGES/UPR SLOPES....44-54 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH...SHIFTING TO
THE NORTH 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 8 MPH...SHIFTING TO
THE NORTHEAST 5 TO 7 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...95-103
RIDGES/UPR SLOPES....86-94
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...14-21 PERCENT
RIDGES/UPR SLOPES....14-22 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE WEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 7 MPH...SHIFTING TO
THE NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7800 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ413-021330-
COASTAL MENDOCINO-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...52-55
RIDGES/UPR SLOPES....51-57
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...77-92 PERCENT
RIDGES/UPR SLOPES....73-88 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 7 TO 14 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 9 TO 16 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...72-80
RIDGES/UPR SLOPES....77-85
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...55-65 PERCENT
RIDGES/UPR SLOPES....45-55 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........1300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-54
RIDGES/UPR SLOPES....52-57
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...73-88 PERCENT
RIDGES/UPR SLOPES....68-83 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............PARTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...76-84
RIDGES/UPR SLOPES....79-87
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...53-63 PERCENT
RIDGES/UPR SLOPES....41-51 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 8 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 8 MPH.
* MIXING HEIGHT..........1100 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ414-021330-
NORTHERN INTERIOR MENDOCINO INCLUDING LEGGETT AND WILLITS-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...51-57
RIDGES/UPR SLOPES....52-60
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...67-82 PERCENT
RIDGES/UPR SLOPES....61-76 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 7 TO 14 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...88-96
RIDGES/UPR SLOPES....81-89
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...27-35 PERCENT
RIDGES/UPR SLOPES....28-36 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........3000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...55-60
RIDGES/UPR SLOPES....54-62
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...56-71 PERCENT
RIDGES/UPR SLOPES....54-64 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 6 TO 13 MPH.
RIDGES/UPR SLOPES....NORTH WINDS 6 TO 13 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...95-103
RIDGES/UPR SLOPES....88-96
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...17-25 PERCENT
RIDGES/UPR SLOPES....22-30 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 7 MPH...SHIFTING TO
THE WEST 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........5900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ415-021330-
NORTHEASTERN INTERIOR MENDOCINO INCLUDING COVELO-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...56-64
RIDGES/UPR SLOPES....58-66
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...55-65 PERCENT
RIDGES/UPR SLOPES....42-52 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH...SHIFTING TO
THE NORTH 5 TO 9 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...93-101
RIDGES/UPR SLOPES....83-91
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...17-24 PERCENT
RIDGES/UPR SLOPES....19-27 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 7 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 7 MPH.
* MIXING HEIGHT..........5300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...58-66
RIDGES/UPR SLOPES....62-68
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...45-55 PERCENT
RIDGES/UPR SLOPES....35-45 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH...SHIFTING TO
THE NORTHEAST 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 8 MPH...SHIFTING TO
THE NORTHEAST 5 TO 7 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...98-106
RIDGES/UPR SLOPES....86-94
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...15-20 PERCENT
RIDGES/UPR SLOPES....15-22 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT..........8000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ416-021330-
SOUTHEASTERN INTERIOR MENDOCINO INCLUDING UKIAH AND POTTER VALLEY-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...55-61
RIDGES/UPR SLOPES....60-68
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...57-72 PERCENT
RIDGES/UPR SLOPES....48-58 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 12 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 12 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...90-98
RIDGES/UPR SLOPES....85-93
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...24-32 PERCENT
RIDGES/UPR SLOPES....26-34 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 8 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 8 MPH.
* MIXING HEIGHT..........3400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...57-64
RIDGES/UPR SLOPES....63-71
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...50-60 PERCENT
RIDGES/UPR SLOPES....38-48 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...96-104
RIDGES/UPR SLOPES....90-98
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...15-22 PERCENT
RIDGES/UPR SLOPES....16-24 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
SOUTHWEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 MPH...SHIFTING TO THE
SOUTHWEST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7000 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ417-021330-
SOUTHWESTERN INTERIOR MENDOCINO INCLUDING BOONVILLE-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...53-58
RIDGES/UPR SLOPES....52-59
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...73-88 PERCENT
RIDGES/UPR SLOPES....66-81 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...82-90
RIDGES/UPR SLOPES....81-89
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...36-44 PERCENT
RIDGES/UPR SLOPES....36-46 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 10 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........1700 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...53-60
RIDGES/UPR SLOPES....54-62
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...63-78 PERCENT
RIDGES/UPR SLOPES....56-71 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 10 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...89-97
RIDGES/UPR SLOPES....86-94
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...30-38 PERCENT
RIDGES/UPR SLOPES....30-38 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 MPH...SHIFTING TO THE WEST 5
TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 6 MPH...SHIFTING TO THE
WEST IN THE AFTERNOON.
* MIXING HEIGHT..........3400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ418-021330-
NORTHERN LAKE INCLUDING GRAVELLY VALLEY-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...60-68
RIDGES/UPR SLOPES....64-71
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...41-51 PERCENT
RIDGES/UPR SLOPES....30-38 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 8 MPH...SHIFTING TO
THE NORTHEAST 5 TO 6 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...98-103
RIDGES/UPR SLOPES....84-92
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...15-21 PERCENT
RIDGES/UPR SLOPES....18-26 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
SOUTHWEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT..........6100 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...61-69
RIDGES/UPR SLOPES....65-72
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...38-48 PERCENT
RIDGES/UPR SLOPES....27-35 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 7 MPH...SHIFTING TO THE
NORTH 5 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 7 MPH...SHIFTING TO
THE NORTH 5 TO 6 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........300 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...102-106
RIDGES/UPR SLOPES....87-95
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...12-15 PERCENT
RIDGES/UPR SLOPES....13-21 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTH 5 TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHEAST IN THE AFTERNOON.
* MIXING HEIGHT..........7700 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ419-021330-
EASTERN LAKE INCLUDING CLEARLAKE AND MIDDLETOWN-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...62-67
RIDGES/UPR SLOPES....65-73
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...42-52 PERCENT
RIDGES/UPR SLOPES....34-44 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 10 MPH...SHIFTING TO THE
NORTH AFTER MIDNIGHT.
* MIXING HEIGHT..........500 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...99-103
RIDGES/UPR SLOPES....92-98
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...15-21 PERCENT
RIDGES/UPR SLOPES....16-21 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTH WINDS 5 TO 6 MPH...SHIFTING TO THE
SOUTHWEST 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 10 MPH...SHIFTING TO THE
EAST 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...63-69
RIDGES/UPR SLOPES....66-74
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...37-47 PERCENT
RIDGES/UPR SLOPES....30-40 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 8 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 8 MPH...SHIFTING TO THE
NORTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT..........500 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...101-104
RIDGES/UPR SLOPES....93-99
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...12-17 PERCENT
RIDGES/UPR SLOPES....12-16 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE EAST 5 TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 9 MPH...SHIFTING TO THE
EAST 5 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7800 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ420-021330-
SOUTHERN LAKE INCLUDING COBB AND KONOCTI-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...61-66
RIDGES/UPR SLOPES....66-73
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...43-53 PERCENT
RIDGES/UPR SLOPES....34-44 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 10 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...97-102
RIDGES/UPR SLOPES....89-96
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...20-25 PERCENT
RIDGES/UPR SLOPES....19-26 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTH WINDS 5 TO 6 MPH...SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT..........6200 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...64-69
RIDGES/UPR SLOPES....69-75
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...35-45 PERCENT
RIDGES/UPR SLOPES....29-37 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....WEST WINDS 6 TO 9 MPH...SHIFTING TO THE
NORTHWEST 5 TO 6 MPH AFTER MIDNIGHT.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...99-103
RIDGES/UPR SLOPES....90-98
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...15-21 PERCENT
RIDGES/UPR SLOPES....15-22 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHEAST IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 TO 6 MPH...SHIFTING TO
THE SOUTHEAST 5 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6900 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
CAZ421-021330-
WESTERN LAKE INCLUDING LAKEPORT-
401 PM PDT SAT AUG 1 2026
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...58-64
RIDGES/UPR SLOPES....61-68
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...53-63 PERCENT
RIDGES/UPR SLOPES....44-54 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...WEST WINDS 5 TO 10 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...93-100
RIDGES/UPR SLOPES....89-92
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...19-26 PERCENT
RIDGES/UPR SLOPES....22-27 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5 TO 7 MPH.
* MIXING HEIGHT..........5100 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER............CLEAR.
* CHANCE LIGHTNING.......0%.
* MIN TEMPERATURE.......
VALLEYS/LWR SLOPES...61-66
RIDGES/UPR SLOPES....64-71
* MAX HUMIDITY.......
VALLEYS/LWR SLOPES...42-52 PERCENT
RIDGES/UPR SLOPES....35-45 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...NORTHWEST WINDS 5 TO 9 MPH.
RIDGES/UPR SLOPES....NORTHWEST WINDS 5 TO 9 MPH.
* MIXING HEIGHT..........400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
MONDAY
* SKY/WEATHER............SUNNY.
* CHANCE LIGHTNING.......0%.
* MAX TEMPERATURE.......
VALLEYS/LWR SLOPES...98-104
RIDGES/UPR SLOPES....94-97
* MIN HUMIDITY.......
VALLEYS/LWR SLOPES...14-21 PERCENT
RIDGES/UPR SLOPES....14-17 PERCENT
* 20-FOOT WINDS...
VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
SOUTH 5 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 5 MPH...SHIFTING TO THE
SOUTH 5 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7400 FT AGL.
* CHC OF WETTING RAIN....0 PERCENT.
EXTENDED FORECAST FOR DAYS 3 THROUGH 5
..NORTHWEST CALIFORNIA COAST
TUESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 72 TO 81. NORTHWEST
WINDS 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 66 TO 73. WINDS
GENERALLY LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
LOWER TO MID 50S. HIGHS 66 TO 74. WINDS GENERALLY LESS THAN
5 MPH.
..NORTHWEST CALIFORNIA INTERIOR
TUESDAY
CLEAR. LOWS 62 TO 70. HIGHS 93 TO 105. NORTHWEST WINDS
5 MPH.
WEDNESDAY
CLEAR. LOWS 60 TO 68. HIGHS 90 TO 102. SOUTHWEST
WINDS 5 MPH.
THURSDAY
CLEAR. LOWS 58 TO 66. HIGHS 89 TO 101. SOUTHWEST
WINDS 5 MPH.
6 TO 10 DAY OUTLOOK
FRIDAY AUGUST 7 THROUGH TUESDAY AUGUST 11, 2026...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
VISIT US AT WWW.WEATHER.GOV/EUREKA
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