Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
423
FNUS56 KEKA 090814
FWFEKA
Fire Weather Planning Forecast for Northwest California
National Weather Service Eureka CA
1214 AM PST Tue Dec 9 2025
.DISCUSSION...High pressure ridging will be the prevailing
pattern well into the week. A stationary frontal system further
north will periodically clip Northern CA this week could bringing
light precipitation to Del Norte & northern Humboldt counties. A
warming trend with light winds and morning valley fog expected
elsewhere this week.
CAZ201-100215-
North Coast-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Partly cloudy. Patchy fog in the morning.
* Max Temperature...57-65.
* Min Humidity...71-86 percent.
* MIXING HEIGHT...2500 ft AGL.
* SNOW LEVEL...Above 4300 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 2 to 4 mph...becoming
northwest 5 mph in the afternoon.
RIDGES...............Variable 2 to 4 mph...becoming northwest 5
mph in the afternoon.
.TONIGHT...
* Sky/Weather...Partly cloudy then becoming mostly cloudy. Patchy
fog.
* Min Temperature...44-52.
* Max Humidity...82-97 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 4300 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......North winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
RIDGES...............Northeast winds 5 mph.
.WEDNESDAY...
* Sky/Weather...Partly cloudy then becoming sunny. Patchy fog in
the morning.
* Max Temperature...58-68.
* Min Humidity...65-80 percent.
* MIXING HEIGHT...2700 ft AGL.
* SNOW LEVEL...Above 4300 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 1 to 3 mph.
RIDGES...............Northeast winds 5 mph...shifting to the
northwest in the afternoon.
$$
CAZ202-100215-
Coastal Mendocino-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Partly cloudy then becoming sunny. Patchy fog early
in the morning.
* Max Temperature...59-67.
* Min Humidity...64-79 percent.
* MIXING HEIGHT...1500 ft AGL.
* SNOW LEVEL...Above 2200 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............North winds 5 to 8 mph.
.TONIGHT...
* Sky/Weather...Partly cloudy.
* Min Temperature...44-52.
* Max Humidity...82-97 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 2200 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......North winds 5 to 8 mph.
RIDGES...............North winds 5 to 8 mph.
.WEDNESDAY...
* Sky/Weather...Partly cloudy then becoming sunny.
* Max Temperature...61-69.
* Min Humidity...57-72 percent.
* MIXING HEIGHT...1600 ft AGL.
* SNOW LEVEL...Above 2200 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......North winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
$$
CAZ203-204-100215-
Upper Smith-Lower Middle Klamath-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Partly cloudy then becoming mostly cloudy. Slight
chance of drizzle.
* Max Temperature...51-61.
* Min Humidity...66-81 percent.
* MIXING HEIGHT...2900 ft AGL.
* SNOW LEVEL...Above 6000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Southwest winds 5 mph.
RIDGES...............Southwest winds 5 mph.
.TONIGHT...
* Sky/Weather...Mostly cloudy then becoming partly cloudy. Slight
chance of drizzle early in the evening.
* Min Temperature...43-51.
* Max Humidity...77-92 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 6000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Light winds 1 to 3 mph.
RIDGES...............Southwest winds 5 mph...shifting to the
southeast after midnight.
.WEDNESDAY...
* Sky/Weather...Partly cloudy then becoming sunny.
* Max Temperature...56-66.
* Min Humidity...49-64 percent.
* MIXING HEIGHT...3500 ft AGL.
* SNOW LEVEL...Above 6000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 1 to 3 mph.
RIDGES...............Variable 1 to 3 mph.
$$
CAZ211-212-100215-
Hoopa-Van Duzen/Mad River-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Partly cloudy then becoming sunny. Patchy fog early
in the morning.
* Max Temperature...54-64.
* Min Humidity...47-62 percent.
* MIXING HEIGHT...2900 ft AGL.
* SNOW LEVEL...Above 5800 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 2 to 4 mph...becoming
northwest 5 mph in the afternoon.
RIDGES...............Variable 2 to 4 mph...becoming northwest 5
mph in the afternoon.
.TONIGHT...
* Sky/Weather...Partly cloudy.
* Min Temperature...37-47.
* Max Humidity...77-92 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 5800 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Downslope/downvalley 1 to 3 mph.
RIDGES...............Variable 2 to 5 mph.
.WEDNESDAY...
* Sky/Weather...Partly cloudy then becoming sunny.
* Max Temperature...59-69.
* Min Humidity...42-52 percent.
* MIXING HEIGHT...3100 ft AGL.
* SNOW LEVEL...Above 5800 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 1 to 3 mph.
RIDGES...............Northeast winds 5 mph...shifting to the
northwest in the afternoon.
$$
CAZ283-100215-
Trinity-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Sunny.
* Max Temperature...52-62.
* Min Humidity...52-67 percent.
* MIXING HEIGHT...2600 ft AGL.
* SNOW LEVEL...Above 8000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......West winds 5 to 8 mph.
RIDGES...............West winds 5 to 8 mph.
.TONIGHT...
* Sky/Weather...Partly cloudy.
* Min Temperature...36-46.
* Max Humidity...69-84 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 8000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Southwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
RIDGES...............Northwest winds 5 to 8 mph.
.WEDNESDAY...
* Sky/Weather...Partly cloudy then becoming sunny.
* Max Temperature...57-67.
* Min Humidity...39-49 percent.
* MIXING HEIGHT...3800 ft AGL.
* SNOW LEVEL...Above 8000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 7 mph.
RIDGES...............Northwest winds 5 to 7 mph.
$$
CAZ276-100215-
Interior Mendocino-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Sunny.
* Max Temperature...60-69.
* Min Humidity...56-71 percent.
* MIXING HEIGHT...2100 ft AGL.
* SNOW LEVEL...Above 4000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
.TONIGHT...
* Sky/Weather...Mostly clear.
* Min Temperature...39-49.
* Max Humidity...72-87 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 4000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......North winds 5 to 8 mph.
RIDGES...............North winds 5 to 8 mph.
.WEDNESDAY...
* Sky/Weather...Sunny.
* Max Temperature...65-74.
* Min Humidity...50-60 percent.
* MIXING HEIGHT...2500 ft AGL.
* SNOW LEVEL...Above 4000 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
$$
CAZ277-100215-
W Mendocino NF/E Mendocino Unit-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Sunny.
* Max Temperature...57-67.
* Min Humidity...40-50 percent.
* MIXING HEIGHT...2400 ft AGL.
* SNOW LEVEL...Above 7100 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Upslope/upvalley 2 to 4 mph...becoming
northwest 5 mph in the afternoon.
RIDGES...............Northwest winds 5 mph.
.TONIGHT...
* Sky/Weather...Clear.
* Min Temperature...40-50.
* Max Humidity...57-72 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 7100 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......North winds 5 to 8 mph.
RIDGES...............North winds 5 to 8 mph.
.WEDNESDAY...
* Sky/Weather...Sunny.
* Max Temperature...61-71.
* Min Humidity...36-46 percent.
* MIXING HEIGHT...3800 ft AGL.
* SNOW LEVEL...Above 7100 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
$$
CAZ264-100215-
Lake County Portion of Lake/Napa/Sonoma RU-
1214 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather...Sunny.
* Max Temperature...63-71.
* Min Humidity...47-57 percent.
* MIXING HEIGHT...1700 ft AGL.
* SNOW LEVEL...Above 4700 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 9 mph.
RIDGES...............Northwest winds 5 to 9 mph.
.TONIGHT...
* Sky/Weather...Clear.
* Min Temperature...42-52.
* Max Humidity...61-76 percent.
* MIXING HEIGHT...0 ft AGL.
* SNOW LEVEL...Above 4700 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
.WEDNESDAY...
* Sky/Weather...Sunny.
* Max Temperature...66-74.
* Min Humidity...44-54 percent.
* MIXING HEIGHT...2400 ft AGL.
* SNOW LEVEL...Above 4700 feet.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......Northwest winds 5 to 8 mph.
RIDGES...............Northwest winds 5 to 8 mph.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.THURSDAY...Partly cloudy. Patchy fog in the evening. Lows 43 to
51. Highs 58 to 66. Winds generally less than 5 mph.
.FRIDAY...Partly cloudy. Lows 43 to 51. Highs 59 to 67. Winds
generally less than 5 mph.
.SATURDAY...Partly cloudy. Lows 42 to 50. Highs 57 to 65. Winds
generally less than 5 mph.
.SUNDAY...Mostly cloudy with chance of showers. Lows 42 to 50.
Highs 55 to 63.
.MONDAY...Mostly cloudy with showers likely. Lows 44 to 52. Highs
56 to 64.
...Northwest California Interior...
.THURSDAY...Clear. Lows 40 to 50. Highs 64 to 75. Winds generally
less than 5 mph.
.FRIDAY...Mostly clear. Lows 41 to 51. Highs 63 to 74. Winds
generally less than 5 mph.
.SATURDAY...Mostly clear. Lows 40 to 48. Highs 61 to 70. Winds
generally less than 5 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows 39 to 47.
Highs 56 to 65.
.MONDAY...Mostly cloudy with chance of showers. Lows 40 to 48.
Highs 55 to 65.
.6 to 10 DAY OUTLOOK...Sunday December 14 THROUGH Thursday December 18, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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