Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
644
FNUS56 KEKA 060705
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1205 AM PDT Sat Sep 6 2025
...SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING IN
NORTHERN TRINITY COUNTY...
.DISCUSSION...Inland areas are seeing slightly cooler temperatures
today and this trend is expected to continue into Monday. Coastal
clouds remain in place this afternoon and are expected to expand
tonight with more drizzle expected. Winds remain diurnal and
terrain driven through the weekend, with afternoon breezes. In
Humboldt, Del Norte and Trinity counties wet weather and below
normal temperatures are expected Monday and Tuesday with a gradual
warming and drying trend later in the week. Less rain is expected
in areas farther south in Mendocino and Lake counties with some
areas not even expected to see a wetting rain.
CAZ201-070115-
North Coast-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-77
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...69-79 percent
Ridges/upr slopes....62-77 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog in the late
evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-54
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....71-86 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 mph in the evening...becoming
downslope/downvalley 2 to 4 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...67-77 percent
Ridges/upr slopes....61-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 2 to 4 mph...becoming west 5
to 7 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 7
mph in the afternoon.
* Mixing Height..........3300 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog in the late
evening and overnight. Chance of showers
in the late evening and overnight.
* Min Temperature.......
Valleys/lwr slopes...53-58
Ridges/upr slopes....53-60
* Max Humidity.......
Valleys/lwr slopes...84-99 percent
Ridges/upr slopes....76-91 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph in the
evening...becoming light winds 2 to 4 mph.
Ridges/upr slopes....West winds 5 to 6 mph in the
evening...becoming light winds 2 to 4 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
$$
CAZ202-070115-
Coastal Mendocino-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming sunny. Patchy
fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...66-74
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....57-67 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........2000 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...52-55
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...84-98 percent
Ridges/upr slopes....80-95 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..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy. Patchy fog in the morning.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...63-78 percent
Ridges/upr slopes....58-68 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....Variable 2 to 4 mph...becoming west 5 to 7
mph in the afternoon.
* Mixing Height..........2300 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog through the night. Showers
likely in the late evening and overnight.
* Min Temperature.......
Valleys/lwr slopes...55-58
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...88-100 percent
Ridges/upr slopes....80-95 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 mph in the
evening...becoming light winds 1 to 3 mph.
Ridges/upr slopes....Northwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-070115-
Upper Smith-Lower Middle Klamath-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy. Areas
of smoke early in the morning. Slight
chance of showers in the afternoon. Slight
chance of thunderstorms late in the
afternoon.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...77-85
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 mph.
Ridges/upr slopes....Southwest winds 5 to 10 mph.
* Mixing Height..........4400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Slight chance of
thunderstorms early in the evening. Slight
chance of showers in the evening.
* Chance Lightning.......20% decreasing to 0% after midnight.
* Min Temperature.......
Valleys/lwr slopes...51-55
Ridges/upr slopes....52-55
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....South winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....63-71
* Min Humidity.......
Valleys/lwr slopes...37-47 percent
Ridges/upr slopes....41-49 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....South winds 5 mph...shifting to the west 5
to 8 mph in the afternoon.
* Mixing Height..........4800 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly cloudy. Chance of showers in the
late evening and overnight.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....52-57
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....66-81 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph in the
evening...becoming light winds 2 to 5 mph.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
south 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....20 percent.
$$
CAZ211-212-070115-
Hoopa-Van Duzen/Mad River-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...31-41 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....South winds 5 to 6 mph...shifting to the
southwest 5 to 9 mph in the afternoon.
* Mixing Height..........4700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-54
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....68-83 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....West winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy.
* Max Temperature.......
Valleys/lwr slopes...77-85
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...36-46 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 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..........5200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly cloudy. Showers likely in the late
evening and overnight.
* Min Temperature.......
Valleys/lwr slopes...51-56
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...84-99 percent
Ridges/upr slopes....75-90 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....West winds 5 to 6 mph in the
evening...becoming light winds 2 to 4 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-070115-
Trinity-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......20%.
* Max Temperature.......
Valleys/lwr slopes...80-87
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...24-32 percent
Ridges/upr slopes....32-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 to 8 mph.
Ridges/upr slopes....Southeast winds 5 to 9 mph...shifting to
the south in the afternoon.
* Mixing Height..........8100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Slight chance of showers
and thunderstorms until early morning.
* Chance Lightning.......20%.
* Min Temperature.......
Valleys/lwr slopes...52-57
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 7 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph...shifting to
the south 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy.
* Max Temperature.......
Valleys/lwr slopes...78-83
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....34-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 to 7 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 8 mph.
* Mixing Height..........7200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature.......
Valleys/lwr slopes...51-55
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...80-94 percent
Ridges/upr slopes....69-84 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 mph in the
evening...becoming light winds 2 to 4 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-070115-
Interior Mendocino-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...39-49 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 11 mph.
Ridges/upr slopes....West winds 5 to 11 mph.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-56
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...43-53 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 8 mph in the afternoon.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........4400 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-070115-
W Mendocino NF/E Mendocino Unit-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...80-87
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...27-34 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........6400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-54
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....57-72 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 8 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...78-86
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....32-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 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..........5900 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature.......
Valleys/lwr slopes...48-56
Ridges/upr slopes....49-56
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-070115-
Lake County Portion of Lake/Napa/Sonoma RU-
1205 AM PDT Sat Sep 6 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 80
Ridges/upr slopes....73-78
* Min Humidity.......
Valleys/lwr slopes...29 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 10 mph.
Ridges/upr slopes....West winds 6 to 10 mph.
* Mixing Height..........6400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 51
Ridges/upr slopes....59-62
* Max Humidity.......
Valleys/lwr slopes...79 percent
Ridges/upr slopes....53-67 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...around 78
Ridges/upr slopes....71-76
* Min Humidity.......
Valleys/lwr slopes...35 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...around 52
Ridges/upr slopes....57-62
* Max Humidity.......
Valleys/lwr slopes...91 percent
Ridges/upr slopes....59-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.MONDAY...Showers and slight chance of thunderstorms. Patchy fog
in the morning. Patchy fog. Lows in the mid to upper 50s. Highs
63 to 69. South winds 5 mph.
.TUESDAY...Mostly cloudy with chance of showers. Patchy fog. Lows
in the lower to mid 50s. Highs in the 60s. Northwest winds 5 mph.
.WEDNESDAY...Mostly cloudy with chance of showers. Patchy fog.
Lows in the lower to mid 50s. Highs 62 to 67. Northwest winds
5 mph.
...Northwest California Interior...
.MONDAY...Mostly cloudy with chance of showers and slight chance
of thunderstorms. Lows 49 to 57. Highs 69 to 78. West winds
5 mph.
.TUESDAY...Mostly cloudy with chance of showers. Lows 50 to 58.
Highs 69 to 76. West winds 5 mph.
.WEDNESDAY...Partly cloudy with chance of showers. Lows 49 to 57.
Highs 72 to 81. Northwest winds 5 mph.
.6 to 10 DAY OUTLOOK...Thursday September 11 THROUGH Monday September 15, 2025...
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
$$
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