Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
083
FNUS56 KEKA 160706
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1206 AM PDT Sat Aug 16 2025
...GUSTY NORTHWEST WINDS ARE GENERATING ENHANCED FIRE DANGER
ACROSS THE INTERIOR TODAY...
...SCATTERED SHOWERS AND THUNDERSTORMS POSSIBLE THIS WEEKEND IN
TRINITY COUNTY...
.DISCUSSION...A weak cold front is passing over the area this
morning, bringing midlevel clouds and increased moisture cooling
down highs into the upper 80s and minimum RH to about 40-50
percent. Gusty winds will continue with this frontal passage
through Sunday with isolated speeds up to 30-35 mph. RH recovery
will be very high the next several nights at all elevations and
very light rain is along the northern coast this morning.
Conditions this weekend will be cooler, calmer, and or moist with
potential for showers and some thunderstorms in Trinity County.
CAZ201-170115-
North Coast-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Mostly cloudy. Patchy fog in the morning.
Chance of showers early in the morning.
Slight chance of showers in the late
morning and afternoon.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....62-70
* Min Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....79-94 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........2300 ft AGL.
* Chc of Wetting Rain....20 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog after midnight.
Slight chance of showers after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-54
Ridges/upr slopes....51-54
* Max Humidity.......
Valleys/lwr slopes...87-100 percent
Ridges/upr slopes....80-95 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Mostly cloudy. Patchy fog early in the
morning.
* Max Temperature.......
Valleys/lwr slopes...66-74
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........2700 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog after midnight.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....48-53
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....76-91 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph in the
evening...becoming light winds 2 to 5 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-170115-
Coastal Mendocino-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming mostly cloudy. Slight chance
of showers in the late morning and
afternoon.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....69-84 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........2100 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....49-55
* Max Humidity.......
Valleys/lwr slopes...88-100 percent
Ridges/upr slopes....82-97 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...60-68
Ridges/upr slopes....63-71
* Min Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....65-80 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........1900 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....45-53
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....79-94 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-170115-
Upper Smith-Lower Middle Klamath-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Mostly cloudy. Chance of showers in the
morning, then slight chance of
thunderstorms early in the afternoon.
Slight chance of showers in the afternoon.
* Chance Lightning.......20%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....58-66
* Min Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....65-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........2900 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. Slight chance of showers.
* Chance Lightning.......10% decreasing to 0% after midnight.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....51-55
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....68-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 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.
.SUNDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Slight chance of showers through the day.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...66-76 percent
Ridges/upr slopes....57-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 6 to 10 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 5 mph...becoming west 5 to 8
mph in the afternoon.
* Mixing Height..........3600 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature.......
Valleys/lwr slopes...49-54
Ridges/upr slopes....51-54
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....62-77 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 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.
$$
CAZ211-212-170115-
Hoopa-Van Duzen/Mad River-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Mostly cloudy. Chance of showers through
the day.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....65-80 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........3500 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. Slight chance of showers.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....49-54
* Max Humidity.......
Valleys/lwr slopes...84-99 percent
Ridges/upr slopes....77-92 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
.SUNDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning. Slight
chance of showers through the day.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...44-54 percent
Ridges/upr slopes....59-69 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy. Patchy fog early in the
morning.
* Min Temperature.......
Valleys/lwr slopes...49-53
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 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.
$$
CAZ283-170115-
Trinity-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Slight chance of showers early in the
morning. Chance of showers and slight
chance of thunderstorms in the late
morning and afternoon.
* Chance Lightning.......20%.
* Max Temperature.......
Valleys/lwr slopes...81-86
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...41-51 percent
Ridges/upr slopes....59-69 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........4700 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. Chance of showers and
slight chance of thunderstorms in the
evening. Slight chance of showers after
midnight.
* Chance Lightning.......10%.
* Min Temperature.......
Valleys/lwr slopes...55-59
Ridges/upr slopes....51-56
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....75-90 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph...shifting to
the north 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
.SUNDAY...
* Sky/Weather............Mostly cloudy. Chance of showers through
the day. Slight chance of thunderstorms
late in the afternoon.
* Max Temperature.......
Valleys/lwr slopes...80-85
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...37-45 percent
Ridges/upr slopes....54-64 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....Southeast winds 5 to 6 mph...shifting to
the south 5 to 8 mph in the afternoon.
* Mixing Height..........5700 ft AGL.
* Chc of Wetting Rain....10 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy. Slight chance of showers
through the night.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....48-55
* Max Humidity.......
Valleys/lwr slopes...74-85 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph.
Ridges/upr slopes....Southwest winds 5 to 8 mph...shifting to
the southeast 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
$$
CAZ276-170115-
Interior Mendocino-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy. Slight
chance of showers in the late morning and
afternoon.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...61-71 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 10 to 17 mph.
Ridges/upr slopes....Northwest winds 10 to 17 mph.
* Mixing Height..........3700 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....78-93 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 9 to 16 mph.
Ridges/upr slopes....Northwest winds 9 to 16 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
.SUNDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...71-79
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...58-68 percent
Ridges/upr slopes....60-70 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 7 to 14 mph.
Ridges/upr slopes....West winds 7 to 14 mph.
* Mixing Height..........3500 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy. Patchy fog early in the
morning.
* Min Temperature.......
Valleys/lwr slopes...48-55
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...80-95 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-170115-
W Mendocino NF/E Mendocino Unit-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming mostly cloudy. Slight chance of
showers in the late morning and afternoon.
* Chance Lightning.......20%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 12 mph.
Ridges/upr slopes....West winds 5 to 12 mph.
* Mixing Height..........5300 ft AGL.
* Chc of Wetting Rain....10 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Slight chance of showers in the evening.
* Chance Lightning.......10% decreasing to 0% after midnight.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....53-59
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph...shifting to
the north 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....10 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...76-84
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...40-49 percent
Ridges/upr slopes....53-63 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....Variable 2 to 5 mph...becoming west 5 to 8
mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature.......
Valleys/lwr slopes...48-56
Ridges/upr slopes....51-56
* Max Humidity.......
Valleys/lwr slopes...78-93 percent
Ridges/upr slopes....65-80 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....West winds 5 to 8 mph...shifting to the
northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-170115-
Lake County Portion of Lake/Napa/Sonoma RU-
1206 AM PDT Sat Aug 16 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...around 79
Ridges/upr slopes....73-76
* Min Humidity.......
Valleys/lwr slopes...49 percent
Ridges/upr slopes....53-63 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 9 to 13 mph.
Ridges/upr slopes....Northwest winds 7 to 13 mph.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 55
Ridges/upr slopes....59-62
* Max Humidity.......
Valleys/lwr slopes...91 percent
Ridges/upr slopes....66-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...around 76
Ridges/upr slopes....69-74
* Min Humidity.......
Valleys/lwr slopes...42 percent
Ridges/upr slopes....45-55 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...around 51
Ridges/upr slopes....56-60
* Max Humidity.......
Valleys/lwr slopes...82 percent
Ridges/upr slopes....60-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.MONDAY...Partly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Lows near 50. Highs 61 to 66. Winds generally
less than 5 mph.
.TUESDAY...Partly cloudy. Patchy fog in the morning. Lows in the
lower to mid 50s. Highs 62 to 69. North winds 5 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower to mid 50s. Highs
65 to 72. North winds 5 mph.
...Northwest California Interior...
.MONDAY...Mostly clear. Lows 49 to 57. Highs 74 to 85. West winds
5 mph.
.TUESDAY...Clear. Lows 53 to 61. Highs 79 to 90. Northwest winds
5 mph.
.WEDNESDAY...Clear. Lows 57 to 65. Highs 85 to 96. Northwest
winds 5 mph.
.6 to 10 DAY OUTLOOK...Thursday August 21 THROUGH Monday August 25, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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