Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
331
FNUS56 KEKA 302024
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
124 PM PDT Wed Sep 30 2026
.DISCUSSION...High pressure builds over Northwest California throughout
the week bringing a steady warming and drying trend. Afternoon high
temperatures in the high 80s to high 90s will become widespread across
interior valleys through the weekend. Minimum relative humidity
values will drop into the teens and lower 20s across interior
valleys each afternoon, while coastal areas stay cooler with
moderate overnight humidity recovery. Inland areas can expect
midslope thermal belts to develop each night as well, lowering
overnight RH recoveries. Winds will follow gentle daily cycles,
blowing onshore during the afternoon and turning offshore overnight.
No rain is expected for the next week.
CAZ401-011330-
Coastal Del Norte-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Partly cloudy. Slight chance of drizzle
after midnight. Patchy fog late in the
night.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-57
Ridges/upr slopes....53-56
* Max Humidity.......
Valleys/lwr slopes...86-96 percent
Ridges/upr slopes....84-94 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........500 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...70-76
Ridges/upr slopes....71-75
* Min Humidity.......
Valleys/lwr slopes...59-72 percent
Ridges/upr slopes....59-69 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
Ridges/upr slopes....Variable 2 to 4 mph...becoming northwest 5
mph in the afternoon.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 60
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...80-91 percent
Ridges/upr slopes....76-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 11 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....North winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
* Mixing Height..........500 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-74
Ridges/upr slopes....71-74
* Min Humidity.......
Valleys/lwr slopes...63-78 percent
Ridges/upr slopes....61-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph.
Ridges/upr slopes....East winds 5 mph in the morning...becoming
light winds 1 to 3 mph.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ402-011330-
Interior Del Norte Including the Smith River Valley-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-57
Ridges/upr slopes....54-59
* Max Humidity.......
Valleys/lwr slopes...71-86 percent
Ridges/upr slopes....59-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 6 to 13 mph.
Ridges/upr slopes....Northeast winds 6 to 13 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 12 mph...shifting to
the northwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 12 mph...shifting to the
northwest 5 mph in the afternoon.
* Mixing Height..........3400 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-61
Ridges/upr slopes....58-64
* Max Humidity.......
Valleys/lwr slopes...63-78 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.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...78-86
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...55-65 percent
Ridges/upr slopes....51-61 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....Northeast winds 5 to 8 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........3700 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ403-011330-
Northeastern Interior Humboldt and Southwestern Siskiyou
Including Orleans-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-57
Ridges/upr slopes....53-57
* Max Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....Northeast winds 5 to 9 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...20-25 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the west 5 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the west 5 mph in the afternoon.
* Mixing Height..........5200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-61
Ridges/upr slopes....58-62
* Max Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 5 to 6 mph after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...20-27 percent
Ridges/upr slopes....25-33 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 in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........5600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ404-011330-
Northern Coastal Humboldt-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog early in the
evening, then areas of fog in the late
evening and overnight. Slight chance of
drizzle in the late evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....around 52
* Max Humidity.......
Valleys/lwr slopes...89-99 percent
Ridges/upr slopes....93 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph in the
evening...becoming light winds 2 to 4 mph.
Ridges/upr slopes....Northwest winds 5 mph in the
evening...becoming light winds 2 to 4 mph.
* Mixing Height..........600 ft AGL.
* Chc of Wetting Rain....10 percent.
.THURSDAY...
* 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....around 68
* Min Humidity.......
Valleys/lwr slopes...63-78 percent
Ridges/upr slopes....65 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
Ridges/upr slopes....Variable 2 to 4 mph...becoming northwest 5
to 6 mph in the afternoon.
* Mixing Height..........1400 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog late in the evening. Patchy
dense fog early in the morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-59
Ridges/upr slopes....around 56
* Max Humidity.......
Valleys/lwr slopes...80-92 percent
Ridges/upr slopes....79 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 mph in the
evening...becoming light winds 2 to 4 mph.
Ridges/upr slopes....North winds 5 to 9 mph.
* Mixing Height..........500 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy. Patchy dense fog in the
morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-77
Ridges/upr slopes....around 68
* Min Humidity.......
Valleys/lwr slopes...64-79 percent
Ridges/upr slopes....67 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph...becoming
northwest 5 mph in the afternoon.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ405-011330-
Northwestern Interior Humboldt Including the Bald Hills-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog late in the
evening. Areas of fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-57
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....65-80 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 8 mph...shifting to the
east 5 to 10 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the
west 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 10 mph...shifting to the
west in the afternoon.
* Mixing Height..........2400 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-60
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...65-80 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph in the
evening...becoming 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.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 7 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........2800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ406-011330-
Eastern Interior Humboldt Including Willow Creek and Hoopa-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-57
Ridges/upr slopes....55-60
* Max Humidity.......
Valleys/lwr slopes...63-78 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
east 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
east 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...24-32 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
northwest in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph...shifting to the
west 5 to 6 mph in the afternoon.
* Mixing Height..........5000 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 60
Ridges/upr slopes....60-65
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph in the morning...becoming
upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 8 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........5300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ407-011330-
Southwestern Humboldt Including the King Range and the Eel River
Valley-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog late in the
night.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....53-57
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....76-91 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 7 to 14 mph.
Ridges/upr slopes....North winds 7 to 14 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...37-47 percent
Ridges/upr slopes....52-62 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....Northeast winds 5 to 8 mph...shifting to
the west 5 mph in the afternoon.
* Mixing Height..........2900 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 60
Ridges/upr slopes....57-63
* Max Humidity.......
Valleys/lwr slopes...64-79 percent
Ridges/upr slopes....57-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...38-48 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........2800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ408-011330-
Southeastern Interior Humboldt Including Kneeland and Alderpoint-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-57
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...73-88 percent
Ridges/upr slopes....63-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....North winds 5 to 8 mph...shifting to the
east after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...40-50 percent
Ridges/upr slopes....51-61 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 to 8 mph...shifting to the
west 5 to 6 mph in the afternoon.
* Mixing Height..........4300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...58-62
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...81-89
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...41-51 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ409-011330-
Northwestern Trinity Including Salyer and Big Bar-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-57
Ridges/upr slopes....54-59
* Max Humidity.......
Valleys/lwr slopes...57-72 percent
Ridges/upr slopes....38-48 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....Northeast winds 5 to 8 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...15-23 percent
Ridges/upr slopes....17-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
northwest 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 7 mph...shifting to the
south 5 mph in the afternoon.
* Mixing Height..........6100 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-60
Ridges/upr slopes....57-62
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....34-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph...shifting to the
northeast after midnight.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...16-24 percent
Ridges/upr slopes....18-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 7 mph...shifting to the
south 5 mph in the afternoon.
* Mixing Height..........6000 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ410-011330-
Northeastern Trinity Including Trinity Lake-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-58
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 9 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...15-22 percent
Ridges/upr slopes....19-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the
southeast in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the southeast 5 to 6 mph in the afternoon.
* Mixing Height..........5700 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear then becoming partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-60
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...49-59 percent
Ridges/upr slopes....34-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
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.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...16-23 percent
Ridges/upr slopes....19-27 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....North winds 5 mph...shifting to the south
in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ411-011330-
Eastern Trinity Including Weaverville and Hayfork-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-57
Ridges/upr slopes....55-60
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....42-52 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....North winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-95
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...14-19 percent
Ridges/upr slopes....16-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 7 mph.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-59
Ridges/upr slopes....57-61
* Max Humidity.......
Valleys/lwr slopes...49-59 percent
Ridges/upr slopes....38-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph in the evening...becoming
downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-94
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...14-19 percent
Ridges/upr slopes....18-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 mph.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ412-011330-
Southern Trinity Including Ruth Lake and the Yolla Bollys-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-59
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
east 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....16-24 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....East winds 5 to 7 mph...shifting to the
west 5 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....53-61
* Max Humidity.......
Valleys/lwr slopes...51-61 percent
Ridges/upr slopes....48-58 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.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...86-94
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...19-27 percent
Ridges/upr slopes....17-25 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
south 5 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ413-011330-
Coastal Mendocino-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog early in the
evening. Areas of fog in the late evening
and early morning. Patchy fog late in the
night. Slight chance of drizzle in the
late evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-54
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....76-91 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....10 percent.
.THURSDAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...59-69 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the west 5
to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 mph in the afternoon.
* Mixing Height..........1100 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-57
Ridges/upr slopes....53-59
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph in the
evening...becoming light winds 2 to 4 mph.
Ridges/upr slopes....North winds 5 to 7 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...71-79
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...59-69 percent
Ridges/upr slopes....52-62 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........1100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ414-011330-
Northern Interior Mendocino Including Leggett and Willits-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....53-61
* Max Humidity.......
Valleys/lwr slopes...62-77 percent
Ridges/upr slopes....60-75 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 9 mph...shifting to the
northeast 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....81-89
* Min Humidity.......
Valleys/lwr slopes...22-30 percent
Ridges/upr slopes....32-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........4600 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph in the
evening...becoming light winds 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.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy then becoming
partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...23-31 percent
Ridges/upr slopes....34-42 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 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........4900 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ415-011330-
Northeastern Interior Mendocino Including Covelo-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....56-63
* Max Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....38-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the east after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-97
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...16-21 percent
Ridges/upr slopes....15-22 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 to 6 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....58-65
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....34-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest 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 northeast 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...17-22 percent
Ridges/upr slopes....16-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the south 5 mph in the afternoon.
* Mixing Height..........6000 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ416-011330-
Southeastern Interior Mendocino Including Ukiah and Potter Valley-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....60-68
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast 5 to 8 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....82-90
* Min Humidity.......
Valleys/lwr slopes...17-22 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
south 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph...shifting to the
south 5 to 6 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....62-70
* Max Humidity.......
Valleys/lwr slopes...49-59 percent
Ridges/upr slopes....36-46 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....West winds 5 to 6 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....81-89
* Min Humidity.......
Valleys/lwr slopes...18-23 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the south
in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the southeast in the afternoon.
* Mixing Height..........5400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ417-011330-
Southwestern Interior Mendocino Including Boonville-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-60
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...64-79 percent
Ridges/upr slopes....58-73 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....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.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...34-42 percent
Ridges/upr slopes....36-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........3000 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-63
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....49-59 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 in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...35-43 percent
Ridges/upr slopes....38-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Variable 1 to 3 mph...becoming southwest 5
mph in the afternoon.
* Mixing Height..........2800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ418-011330-
Northern Lake Including Gravelly Valley-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....59-66
* Max Humidity.......
Valleys/lwr slopes...51-61 percent
Ridges/upr slopes....33-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the northeast 5 to 7 mph after midnight.
Ridges/upr slopes....Northeast winds 5 to 9 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...92-98
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...14-20 percent
Ridges/upr slopes....18-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph...shifting to the
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 9 mph...shifting to the
south 5 to 6 mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-63
Ridges/upr slopes....61-69
* Max Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph.
Ridges/upr slopes....West winds 5 mph...shifting to the north
after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-96
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...15-21 percent
Ridges/upr slopes....19-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
southeast in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the southeast in the afternoon.
* Mixing Height..........5000 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ419-011330-
Eastern Lake Including Clearlake and Middletown-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-63
Ridges/upr slopes....60-67
* Max Humidity.......
Valleys/lwr slopes...51-61 percent
Ridges/upr slopes....40-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
north 5 to 11 mph after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-94
Ridges/upr slopes....83-89
* Min Humidity.......
Valleys/lwr slopes...18-23 percent
Ridges/upr slopes....19-27 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....East winds 5 to 8 mph.
* Mixing Height..........4900 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....61-69
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 mph in the
evening...becoming downslope/downvalley 1
to 3 mph.
Ridges/upr slopes....Southwest winds 5 mph in the
evening...becoming downslope/downvalley 1
to 3 mph.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-92
Ridges/upr slopes....82-87
* Min Humidity.......
Valleys/lwr slopes...19-25 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph...becoming east 5
mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming east 5 to 7
mph in the afternoon.
* Mixing Height..........4700 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ420-011330-
Southern Lake Including Cobb and Konocti-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....65-68
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....36-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 8 mph...shifting to
the east 5 to 9 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...90-93
Ridges/upr slopes....81-89
* Min Humidity.......
Valleys/lwr slopes...20-26 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....East winds 5 to 8 mph.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...59-67
Ridges/upr slopes....66-71
* Max Humidity.......
Valleys/lwr slopes...40-50 percent
Ridges/upr slopes....33-43 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 in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...89-92
Ridges/upr slopes....81-88
* Min Humidity.......
Valleys/lwr slopes...21-28 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 2 to 4 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 mph...shifting to the
southeast 5 to 6 mph in the afternoon.
* Mixing Height..........4000 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ421-011330-
Western Lake Including Lakeport-
124 PM PDT Wed Sep 30 2026
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-63
Ridges/upr slopes....61-69
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....39-49 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 after midnight.
* Mixing Height..........300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-94
Ridges/upr slopes....85-89
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....18-23 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 8 mph.
* Mixing Height..........5200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...58-64
Ridges/upr slopes....62-70
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....32-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph in the evening...becoming
downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........400 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...87-94
Ridges/upr slopes....83-88
* Min Humidity.......
Valleys/lwr slopes...19-27 percent
Ridges/upr slopes....20-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 2 to 4 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the southeast in the afternoon.
* Mixing Height..........5100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.SATURDAY...Mostly cloudy. Lows 55 to 60. Highs 70 to 77. Winds
generally less than 5 mph.
.SUNDAY...Mostly cloudy. Lows 55 to 61. Highs 69 to 76. Winds
generally less than 5 mph.
.MONDAY...Partly cloudy. Lows 54 to 59. Highs 67 to 74. Winds
generally less than 5 mph.
...Northwest California Interior...
.SATURDAY...Partly cloudy. Lows 58 to 66. Highs 88 to 98. Winds
generally less than 5 mph.
.SUNDAY...Partly cloudy. Lows 60 to 68. Highs 88 to 97. Winds
generally less than 5 mph.
.MONDAY...Mostly clear. Lows 58 to 66. Highs 86 to 95. Winds
generally less than 5 mph.
.6 to 10 DAY OUTLOOK...Tuesday October 6 THROUGH Saturday October 10, 2026...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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