Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
997
FNUS56 KEKA 071021
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
321 AM PDT Mon Sep 7 2026
...BREEZY DRY OFFSHORE WINDS, HOT TEMPERATURES, AND LOW RH
WEDNESDAY...
.DISCUSSION...An exiting weather system will maintain up to a 15
percent chance of showers or thunderstorms over northern Trinity and
interior Del Norte through early evening, though measurable rain is
not expected. High pressure building over the region Monday through
mid-week will bring much warmer and drier conditions. High
temperatures in interior valleys will climb into the 98 to 102
degree range Tuesday through Thursday, with afternoon humidity
levels dropping between 12 and 22 percent. Winds will follow
standard daily patterns, blowing uphill during the day and down the
valleys at night. Brief offshore winds Wednesday morning will spread
warm temperatures and lower humidity closer to the coast before fog
and low clouds rebuild late in the week.
CAZ401-080115-
Coastal Del Norte-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...66-72
Ridges/upr slopes....66-72
* Min Humidity.......
Valleys/lwr slopes...61-73 percent
Ridges/upr slopes....61-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the northwest 5 to 10 mph in the
afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the northwest 5 to 7 mph in the afternoon.
* Mixing Height..........2500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-57
Ridges/upr slopes....53-56
* Max Humidity.......
Valleys/lwr slopes...77-87 percent
Ridges/upr slopes....76-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 10 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northeast winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...71-76
Ridges/upr slopes....71-77
* Min Humidity.......
Valleys/lwr slopes...57-72 percent
Ridges/upr slopes....57-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
northwest in the afternoon.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........2000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-60
Ridges/upr slopes....56-59
* Max Humidity.......
Valleys/lwr slopes...71-84 percent
Ridges/upr slopes....71-81 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
east 5 mph after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming east 5 to 6
mph after midnight.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ402-080115-
Interior Del Norte Including the Smith River Valley-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the northwest 5 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the northwest 5 mph in the afternoon.
* Mixing Height..........4800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....51-56
* Max Humidity.......
Valleys/lwr slopes...65-79 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 7 mph.
Ridges/upr slopes....Northeast winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...51-61 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
west 5 mph in the afternoon.
* Mixing Height..........5000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-60
Ridges/upr slopes....56-62
* Max Humidity.......
Valleys/lwr slopes...59-74 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
east 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
east 5 to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ403-080115-
Northeastern Interior Humboldt and Southwestern Siskiyou
Including Orleans-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...80-88
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...19-27 percent
Ridges/upr slopes....26-34 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
northwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the northwest in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-58
Ridges/upr slopes....52-57
* Max Humidity.......
Valleys/lwr slopes...55-65 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....North winds 5 to 7 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...15-22 percent
Ridges/upr slopes....20-28 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west 5 mph in the afternoon.
* Mixing Height..........6100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly cloudy then becoming mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-62
Ridges/upr slopes....56-63
* Max Humidity.......
Valleys/lwr slopes...47-57 percent
Ridges/upr slopes....34-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
east 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ404-080115-
Northern Coastal Humboldt-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...66-71
Ridges/upr slopes....around 65
* Min Humidity.......
Valleys/lwr slopes...57-72 percent
Ridges/upr slopes....65 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the northwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........2100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....around 53
* Max Humidity.......
Valleys/lwr slopes...84-94 percent
Ridges/upr slopes....91 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph in the
evening...becoming light winds 2 to 5 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...71-78
Ridges/upr slopes....around 71
* Min Humidity.......
Valleys/lwr slopes...57-67 percent
Ridges/upr slopes....59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 2 to 4 mph...becoming
northwest 5 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the northwest 5 mph in the afternoon.
* Mixing Height..........2200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-61
Ridges/upr slopes....around 59
* Max Humidity.......
Valleys/lwr slopes...65-80 percent
Ridges/upr slopes....70 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the east
after midnight.
Ridges/upr slopes....Northeast winds 5 mph.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ405-080115-
Northwestern Interior Humboldt Including the Bald Hills-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
northwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
northwest in the afternoon.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....52-56
* Max Humidity.......
Valleys/lwr slopes...71-86 percent
Ridges/upr slopes....59-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....East winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...81-89
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...47-57 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
west 5 mph in the afternoon.
* Mixing Height..........4400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...60-75 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
east 5 to 6 mph after midnight.
Ridges/upr slopes....North winds 5 mph...shifting to the east 5
to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ406-080115-
Eastern Interior Humboldt Including Willow Creek and Hoopa-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....31-39 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....East winds 5 to 6 mph...shifting to the
northwest in the afternoon.
* Mixing Height..........6000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....52-55
* Max Humidity.......
Valleys/lwr slopes...57-71 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the east 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....23-31 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 mph in the afternoon.
* Mixing Height..........6600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....56-62
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the east 5
to 7 mph after midnight.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
east 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ407-080115-
Southwestern Humboldt Including the King Range and the Eel River
Valley-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...39-49 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....54-58
* Max Humidity.......
Valleys/lwr slopes...69-84 percent
Ridges/upr slopes....65-80 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...32-40 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 mph in the morning...becoming
upslope/upvalley 2 to 4 mph.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-62
Ridges/upr slopes....60-67
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ408-080115-
Southeastern Interior Humboldt Including Kneeland and Alderpoint-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....67-73
* Min Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
northwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the northwest in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...71-86 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
east after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...33-41 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
southwest in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-61
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
east after midnight.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the east 5 to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ409-080115-
Northwestern Trinity Including Salyer and Big Bar-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....24-32 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....Variable 2 to 4 mph...becoming southwest 5
to 6 mph in the afternoon.
* Mixing Height..........6600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-55
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...14-19 percent
Ridges/upr slopes....16-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the south
in the afternoon.
* Mixing Height..........6900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....54-60
* Max Humidity.......
Valleys/lwr slopes...43-53 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
east 5 to 6 mph after midnight.
Ridges/upr slopes....North winds 5 mph...shifting to the east 5
to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ410-080115-
Northeastern Trinity Including Trinity Lake-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....62-70
* Min Humidity.......
Valleys/lwr slopes...15-23 percent
Ridges/upr slopes....26-34 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Northeast winds 5 mph...shifting to the
southeast in the afternoon.
* Mixing Height..........6700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-57
Ridges/upr slopes....46-54
* Max Humidity.......
Valleys/lwr slopes...47-57 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
northwest 5 mph after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming north 5 mph
after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...13-18 percent
Ridges/upr slopes....17-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the
southeast 5 to 7 mph in the afternoon.
* Mixing Height..........6400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-59
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...38-48 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
northwest 5 to 6 mph after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 mph
after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ411-080115-
Eastern Trinity Including Weaverville and Hayfork-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...78-85
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...15-20 percent
Ridges/upr slopes....17-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Northeast winds 5 mph.
* Mixing Height..........6800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-56
Ridges/upr slopes....51-55
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....42-52 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....Northwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...86-92
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...11-15 percent
Ridges/upr slopes....14-19 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
east 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph.
* Mixing Height..........7000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-59
Ridges/upr slopes....55-59
* Max Humidity.......
Valleys/lwr slopes...37-46 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
north 5 mph after midnight.
Ridges/upr slopes....Northeast winds 5 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ412-080115-
Southern Trinity Including Ruth Lake and the Yolla Bollys-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...77-85
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...24-32 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west in the afternoon.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-55
Ridges/upr slopes....48-55
* Max Humidity.......
Valleys/lwr slopes...54-69 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny then
becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...16-24 percent
Ridges/upr slopes....15-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph in the morning...becoming
upslope/upvalley 2 to 4 mph.
Ridges/upr slopes....East winds 5 mph in the morning...becoming
upslope/upvalley 2 to 4 mph.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-60
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...43-53 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
east 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
east after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ413-080115-
Coastal Mendocino-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-77
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...Northeast winds 5 mph...shifting to the
west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the west 5 to 8 mph in the afternoon.
* Mixing Height..........2500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-58
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....60-75 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 8 mph.
Ridges/upr slopes....Northeast winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....42-52 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........2400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 60
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...56-71 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming northeast 5
mph after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ414-080115-
Northern Interior Mendocino Including Leggett and Willits-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...26-34 percent
Ridges/upr slopes....33-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west in the afternoon.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-56
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-95
Ridges/upr slopes....82-90
* Min Humidity.......
Valleys/lwr slopes...16-24 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the south
in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........6200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph...shifting to the
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming east 5 to 7
mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ415-080115-
Northeastern Interior Mendocino Including Covelo-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...21-26 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the west 5
to 6 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* Chc of Wetting Rain....0 percent.
.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...49-59 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
east 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...15-20 percent
Ridges/upr slopes....15-21 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 mph...shifting to the south
in the afternoon.
* Mixing Height..........7300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....58-64
* Max Humidity.......
Valleys/lwr slopes...38-48 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....Variable 2 to 4 mph...becoming northeast 5
to 6 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ416-080115-
Southeastern Interior Mendocino Including Ukiah and Potter Valley-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-89
Ridges/upr slopes....75-82
* Min Humidity.......
Valleys/lwr slopes...20-27 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
south 5 to 7 mph in the afternoon.
* Mixing Height..........7500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....57-65
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....82-90
* Min Humidity.......
Valleys/lwr slopes...15-20 percent
Ridges/upr slopes....16-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southeast 5 to 7 mph in the afternoon.
* Mixing Height..........7700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....63-71
* Max Humidity.......
Valleys/lwr slopes...37-47 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ417-080115-
Southwestern Interior Mendocino Including Boonville-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...78-86
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...32-40 percent
Ridges/upr slopes....35-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the west 5
to 7 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-61
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
northeast 5 to 6 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....83-91
* Min Humidity.......
Valleys/lwr slopes...26-34 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the south 5
to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
south in the afternoon.
* Mixing Height..........6000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...59-67
Ridges/upr slopes....59-67
* Max Humidity.......
Valleys/lwr slopes...42-52 percent
Ridges/upr slopes....38-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ418-080115-
Northern Lake Including Gravelly Valley-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-89
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...16-22 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the south 5 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the southeast 5 mph in the afternoon.
* Mixing Height..........6900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-60
Ridges/upr slopes....55-62
* Max Humidity.......
Valleys/lwr slopes...39-49 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....North winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy then becoming
partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...91-96
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...12-15 percent
Ridges/upr slopes....14-21 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph.
* Mixing Height..........7300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....60-68
* Max Humidity.......
Valleys/lwr slopes...31-41 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
northeast 5 mph after midnight.
Ridges/upr slopes....Southwest winds 5 mph...shifting to the
north after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ419-080115-
Eastern Lake Including Clearlake and Middletown-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-87
Ridges/upr slopes....77-82
* Min Humidity.......
Valleys/lwr slopes...15-21 percent
Ridges/upr slopes....16-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 7 mph.
Ridges/upr slopes....Northeast winds 5 to 7 mph.
* Mixing Height..........7200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-61
Ridges/upr slopes....57-64
* Max Humidity.......
Valleys/lwr slopes...42-52 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph...shifting to the
northwest after midnight.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-94
Ridges/upr slopes....83-88
* Min Humidity.......
Valleys/lwr slopes...13-18 percent
Ridges/upr slopes....13-20 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 in the
morning...becoming upslope/upvalley 2 to 5
mph.
* Mixing Height..........7600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...59-65
Ridges/upr slopes....63-71
* Max Humidity.......
Valleys/lwr slopes...32-42 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming
northwest 5 mph after midnight.
Ridges/upr slopes....Southwest winds 5 mph...shifting to the
northwest after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ420-080115-
Southern Lake Including Cobb and Konocti-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-87
Ridges/upr slopes....75-82
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....20-28 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....East winds 5 to 7 mph.
* Mixing Height..........6700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-64
Ridges/upr slopes....63-66
* Max Humidity.......
Valleys/lwr slopes...34-44 percent
Ridges/upr slopes....31-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph in the evening...becoming
downslope/downvalley 2 to 4 mph.
Ridges/upr slopes....West winds 5 mph in the evening...becoming
downslope/downvalley 2 to 4 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-93
Ridges/upr slopes....81-89
* Min Humidity.......
Valleys/lwr slopes...15-21 percent
Ridges/upr slopes....15-22 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....East winds 5 to 7 mph.
* Mixing Height..........6900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...61-69
Ridges/upr slopes....69-73
* Max Humidity.......
Valleys/lwr slopes...28-36 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 mph...shifting to the
north after midnight.
Ridges/upr slopes....Southwest winds 5 to 6 mph...shifting to
the north 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ421-080115-
Western Lake Including Lakeport-
321 AM PDT Mon Sep 7 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...81-86
Ridges/upr slopes....78-82
* Min Humidity.......
Valleys/lwr slopes...19-27 percent
Ridges/upr slopes....19-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the
southeast 5 to 6 mph in the afternoon.
* Mixing Height..........7400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-61
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...42-52 percent
Ridges/upr slopes....32-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-94
Ridges/upr slopes....85-89
* Min Humidity.......
Valleys/lwr slopes...14-22 percent
Ridges/upr slopes....14-19 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph.
* Mixing Height..........7800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...59-64
Ridges/upr slopes....63-71
* Max Humidity.......
Valleys/lwr slopes...34-44 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph...shifting to the north
after midnight.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.WEDNESDAY...Partly cloudy. Lows 59 to 64. Highs 74 to 82. North
winds 5 mph.
.THURSDAY...Partly cloudy. Lows in the mid to upper 50s. Highs
69 to 77. Winds generally less than 5 mph.
.FRIDAY...Partly cloudy. Patchy fog in the morning. Lows in the
lower to mid 50s. Highs 64 to 71. Northwest winds 5 mph.
...Northwest California Interior...
.WEDNESDAY...Partly cloudy. Lows 62 to 70. Highs 92 to 102.
Northwest winds 5 mph.
.THURSDAY...Mostly clear. Lows 57 to 65. Highs 90 to 101.
Northwest winds 5 mph.
.FRIDAY...Mostly clear. Lows 52 to 60. Highs 80 to 92. West winds
5 mph.
.6 to 10 DAY OUTLOOK...Saturday September 12 THROUGH Wednesday September 16, 2026...
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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