Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
727
FNUS56 KEKA 301120
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
420 AM PDT Sun Aug 30 2026
...ELEVATED FIRE WEATHER CONDITIONS IN TRINITY COUNTY MONDAY DUE TO
LOW AFTERNOON RH AND BREEZY SOUTH WINDS...
...SLIGHT CHANCE FOR DRY THUNDERSTORMS FOR THE AFTERNOON AND
OVERNIGHT HOURS OF TUESDAY IN TRINITY COUNTY...
.DISCUSSION...Dry weather and near normal temperatures continue
through Monday. Afternoon relative humidities are forecast to be
in the teens and 20s through Monday and will trend upwards into
the work week. Breezy southerly winds in the afternoon will create
locally elevated fire weather conditions in eastern Trinity
County, mainly for the higher terrain. A trough will bring a 5-10%
chance for isolated dry thunderstorms Tuesday afternoon and
evening in Trinity and Siskiyou Counties. Wetting rain is likely
outside Lake County mid to late this week.
CAZ401-310130-
Coastal Del Norte-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...68-74
Ridges/upr slopes....66-73
* Min Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....59-69 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........1800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-54
Ridges/upr slopes....48-53
* Max Humidity.......
Valleys/lwr slopes...89-99 percent
Ridges/upr slopes....89-99 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....Southeast winds 5 to 8 mph.
* Mixing Height..........500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy. Patchy fog in
the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...61-66
Ridges/upr slopes....60-66
* Min Humidity.......
Valleys/lwr slopes...67-78 percent
Ridges/upr slopes....69-79 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....Variable 2 to 4 mph...becoming southwest 5
to 7 mph in the afternoon.
* Mixing Height..........1600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog through the
night.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....48-52
* Max Humidity.......
Valleys/lwr slopes...94-100 percent
Ridges/upr slopes....93-100 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph.
Ridges/upr slopes....Southwest winds 5 mph...shifting to the
south after midnight.
* Mixing Height..........900 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ402-310130-
Interior Del Norte Including the Smith River Valley-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...51-61 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 9 mph...shifting to
the west 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to
the west 5 to 6 mph in the afternoon.
* Mixing Height..........3500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....51-56
* Max Humidity.......
Valleys/lwr slopes...73-88 percent
Ridges/upr slopes....57-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the east 5 mph after midnight.
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.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...68-76
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...59-69 percent
Ridges/upr slopes....56-66 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 9 mph in the afternoon.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........2500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-51
Ridges/upr slopes....around 50
* Max Humidity.......
Valleys/lwr slopes...92-100 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the
south 5 mph after midnight.
Ridges/upr slopes....Southwest winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ403-310130-
Northeastern Interior Humboldt and Southwestern Siskiyou
Including Orleans-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...86-94
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...15-23 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the west 5
to 8 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west 5 to 7 mph in the afternoon.
* Mixing Height..........6200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....54-57
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the east 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...83-91
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...19-25 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
southwest 5 to 9 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 mph...shifting to the
southwest 5 to 9 mph in the afternoon.
* Mixing Height..........6900 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-52
Ridges/upr slopes....48-52
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ404-310130-
Northern Coastal Humboldt-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny. Slight chance of
drizzle early in the morning. Patchy fog
in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...64-70
Ridges/upr slopes....around 64
* Min Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....74 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........1700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....around 51
* Max Humidity.......
Valleys/lwr slopes...92-100 percent
Ridges/upr slopes....95 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........700 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Mostly cloudy. Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...61-66
Ridges/upr slopes....around 59
* Min Humidity.......
Valleys/lwr slopes...69-84 percent
Ridges/upr slopes....86 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 mph increasing to 5 to 7
mph in the afternoon.
* Mixing Height..........1900 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-55
Ridges/upr slopes....around 52
* Max Humidity.......
Valleys/lwr slopes...93-100 percent
Ridges/upr slopes....93 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the
southeast 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 mph in the
evening...becoming light winds 2 to 4 mph.
* Mixing Height..........1000 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ405-310130-
Northwestern Interior Humboldt Including the Bald Hills-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...55-65 percent
Ridges/upr slopes....53-63 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........2100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-54
Ridges/upr slopes....49-56
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the south 5 mph after midnight.
Ridges/upr slopes....Southwest winds 5 to 6 mph...shifting to
the south after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...65-75 percent
Ridges/upr slopes....61-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 mph.
Ridges/upr slopes....Southwest winds 5 to 8 mph.
* Mixing Height..........2000 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....49-53
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph in the evening...becoming
light winds 2 to 4 mph.
Ridges/upr slopes....West winds 5 mph...shifting to the south
after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ406-310130-
Eastern Interior Humboldt Including Willow Creek and Hoopa-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...24-32 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
northwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
west 5 to 8 mph in the afternoon.
* Mixing Height..........4400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....53-57
* Max Humidity.......
Valleys/lwr slopes...62-77 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the southeast 5 to 6 mph after midnight.
* Mixing Height..........200 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....68-76
* Min Humidity.......
Valleys/lwr slopes...26-34 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 9 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 7 mph...shifting to
the southwest 5 to 10 mph in the
afternoon.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....49-52
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....59-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 mph.
Ridges/upr slopes....Southwest winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ407-310130-
Southwestern Humboldt Including the King Range and the Eel River
Valley-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
Slight chance of drizzle early in the
morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...44-54 percent
Ridges/upr slopes....57-67 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 12 mph.
* Mixing Height..........2500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-53
Ridges/upr slopes....49-53
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 11 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny. Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........2200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-53
Ridges/upr slopes....50-54
* Max Humidity.......
Valleys/lwr slopes...84-99 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
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.
$$
CAZ408-310130-
Southeastern Interior Humboldt Including Kneeland and Alderpoint-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...49-59 percent
Ridges/upr slopes....57-67 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........3800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog in the late
evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 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.
.MONDAY...
* Sky/Weather............Sunny. Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....62-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........2900 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....44-52
* Max Humidity.......
Valleys/lwr slopes...88-100 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph.
Ridges/upr slopes....West winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ409-310130-
Northwestern Trinity Including Salyer and Big Bar-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...16-24 percent
Ridges/upr slopes....17-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
northwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to
the southwest 5 to 8 mph in the afternoon.
* Mixing Height..........7200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....53-57
* Max Humidity.......
Valleys/lwr slopes...56-71 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to
the east 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 8 mph...shifting to
the east 5 to 7 mph after midnight.
* Mixing Height..........200 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....70-78
* Min Humidity.......
Valleys/lwr slopes...16-24 percent
Ridges/upr slopes....18-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to
the southwest 5 to 9 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 12 mph.
* Mixing Height..........7000 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...47-51
Ridges/upr slopes....46-52
* Max Humidity.......
Valleys/lwr slopes...80-95 percent
Ridges/upr slopes....55-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph...shifting to
the southeast 5 to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ410-310130-
Northeastern Trinity Including Trinity Lake-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...13-18 percent
Ridges/upr slopes....17-24 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....East winds 5 to 6 mph...shifting to the
south 5 to 7 mph in the afternoon.
* Mixing Height..........7600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Southeast winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...78-86
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...16-22 percent
Ridges/upr slopes....19-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 12 mph.
Ridges/upr slopes....Southeast winds 5 to 12 mph.
* Mixing Height..........5900 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-53
Ridges/upr slopes....43-50
* Max Humidity.......
Valleys/lwr slopes...72-87 percent
Ridges/upr slopes....53-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 7 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....Southeast winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ411-310130-
Eastern Trinity Including Weaverville and Hayfork-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...86-93
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...13-18 percent
Ridges/upr slopes....16-24 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 7 mph.
* Mixing Height..........8000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-57
Ridges/upr slopes....53-56
* Max Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....42-52 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....West winds 5 to 6 mph...shifting to the
east after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-89
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...16-22 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 9 mph.
Ridges/upr slopes....Southeast winds 5 to 10 mph.
* Mixing Height..........6800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...43-50
Ridges/upr slopes....47-52
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....South winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ412-310130-
Southern Trinity Including Ruth Lake and the Yolla Bollys-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...22-30 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........6900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-54
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....53-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the east 5 to 6 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...78-86
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 9 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to
the southwest 6 to 9 mph in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...42-49
Ridges/upr slopes....42-50
* Max Humidity.......
Valleys/lwr slopes...89-100 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the
northwest 5 mph after midnight.
Ridges/upr slopes....Southwest winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ413-310130-
Coastal Mendocino-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....69-76
* Min Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....58-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 50
Ridges/upr slopes....46-52
* Max Humidity.......
Valleys/lwr slopes...93-100 percent
Ridges/upr slopes....89-100 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...58-66
Ridges/upr slopes....59-67
* Min Humidity.......
Valleys/lwr slopes...71-86 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........1700 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog through the night.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....46-54
* Max Humidity.......
Valleys/lwr slopes...93-100 percent
Ridges/upr slopes....87-100 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph.
* Mixing Height..........500 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ414-310130-
Northern Interior Mendocino Including Leggett and Willits-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....36-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........4700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...45-53
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....66-81 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the north after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny. Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...40-50 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 5 mph...becoming southwest 5
to 8 mph in the afternoon.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...42-50
Ridges/upr slopes....45-53
* Max Humidity.......
Valleys/lwr slopes...86-100 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ415-310130-
Northeastern Interior Mendocino Including Covelo-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...20-25 percent
Ridges/upr slopes....20-28 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........7400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-56
Ridges/upr slopes....53-59
* Max Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....44-54 percent
* 20-Foot Winds...
Valleys/lwr slopes...West 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 east 5 to 6 mph after midnight.
* Mixing Height..........200 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....71-79
* Min Humidity.......
Valleys/lwr slopes...24-31 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 10 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 10 mph.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...42-50
Ridges/upr slopes....45-52
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ416-310130-
Southeastern Interior Mendocino Including Ukiah and Potter Valley-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...23-31 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-55
Ridges/upr slopes....53-60
* Max Humidity.......
Valleys/lwr slopes...68-83 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...77-85
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...32-42 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........4000 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
Patchy fog early in the morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-54
Ridges/upr slopes....50-57
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ417-310130-
Southwestern Interior Mendocino Including Boonville-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...77-85
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....45-55 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........3000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....49-54
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny. Patchy fog in the
morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-77
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....58-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........2100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and
overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-56
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....78-93 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ418-310130-
Northern Lake Including Gravelly Valley-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-95
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...15-21 percent
Ridges/upr slopes....18-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 8 mph...shifting to
the southwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 10 mph...shifting to the
southwest 5 to 7 mph in the afternoon.
* Mixing Height..........7000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....55-62
* Max Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....West winds 5 to 7 mph...shifting to the
east 5 to 6 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-91
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...21-29 percent
Ridges/upr slopes....23-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 6 to 9 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to
the south 6 to 9 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...42-50
Ridges/upr slopes....48-54
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....63-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ419-310130-
Eastern Lake Including Clearlake and Middletown-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-92
Ridges/upr slopes....82-87
* Min Humidity.......
Valleys/lwr slopes...16-23 percent
Ridges/upr slopes....17-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the southeast 5 to 8 mph in the afternoon.
Ridges/upr slopes....Northeast winds 6 to 12 mph...shifting to
the east 5 to 7 mph in the afternoon.
* Mixing Height..........7000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....54-62
* Max Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....56-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-88
Ridges/upr slopes....79-83
* Min Humidity.......
Valleys/lwr slopes...27-35 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
south 5 to 10 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 5 mph...becoming south 6 to
10 mph in the afternoon.
* Mixing Height..........5000 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...44-52
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...80-95 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 10 mph.
* Mixing Height..........400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ420-310130-
Southern Lake Including Cobb and Konocti-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-91
Ridges/upr slopes....78-85
* Min Humidity.......
Valleys/lwr slopes...20-28 percent
Ridges/upr slopes....23-31 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the south 5 to 10 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the south 5 to 8 mph in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-60
Ridges/upr slopes....59-63
* Max Humidity.......
Valleys/lwr slopes...59-74 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 mph.
Ridges/upr slopes....Southwest winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...81-84
Ridges/upr slopes....72-79
* Min Humidity.......
Valleys/lwr slopes...35-45 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 12 mph.
Ridges/upr slopes....Southwest winds 5 to 12 mph.
* Mixing Height..........3500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-54
Ridges/upr slopes....53-57
* Max Humidity.......
Valleys/lwr slopes...73-88 percent
Ridges/upr slopes....60-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ421-310130-
Western Lake Including Lakeport-
420 AM PDT Sun Aug 30 2026
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-91
Ridges/upr slopes....81-86
* Min Humidity.......
Valleys/lwr slopes...21-29 percent
Ridges/upr slopes....20-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-58
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...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...80-85
Ridges/upr slopes....74-80
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....29-37 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........5300 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear then becoming partly cloudy. Patchy
fog early in the morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...44-51
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........700 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.TUESDAY...Mostly cloudy with chance of showers. Patchy fog. Lows
in the lower to mid 50s. Highs 58 to 66. South winds 5 mph.
.WEDNESDAY...Mostly cloudy with rain likely. Chance of showers
and patchy fog in the morning. Patchy fog after midnight. Lows in
the lower to mid 50s. Highs 59 to 67. South winds 5 mph.
.THURSDAY...Mostly cloudy with chance of rain. Patchy fog. Lows
near 50. Highs 58 to 65. South winds 5 mph.
...Northwest California Interior...
.TUESDAY...Partly cloudy with chance of showers. Patchy fog in
the morning. Patchy fog after midnight. Lows 45 to 53. Highs
66 to 76. Southwest winds 5 mph.
.WEDNESDAY...Partly cloudy with chance of rain. Patchy fog in the
morning. Patchy fog after midnight. Lows 46 to 54. Highs 67 to
76. Southwest winds 5 mph.
.THURSDAY...Partly cloudy. Chance of rain. Patchy fog in the
morning. Patchy fog after midnight. Lows 45 to 53. Highs 66 to
77. Southwest winds 5 mph.
.6 to 10 DAY OUTLOOK...Friday September 4 THROUGH Tuesday September 8, 2026...
FOR NW CALIF...BELOW NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
$$
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