Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
449
FNUS56 KEKA 310906
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
206 AM PDT Thu Jul 31 2025
...ISOLATED DRY THUNDERSTORMS THURSDAY AND FRIDAY AFTERNOON OVER
THE YOLLA BOLLYS AND TRINITY ALPS...
.DISCUSSION...An active thunderstorm pattern will continue for
the next several days, though coverage will generally be less
than on Wednesday. Storms will most likely be short lived and
attached to high terrain. Up to 1 inch of rain will be possible
in storm cores alongside frequent lightning and gusty outflow
winds. Beyond thunderstorms, conditions will remain relatively
seasonable with highs in the 90s and minimum RH generally between
20 and 30 percent. Overnight recoveries will remain good,e
specially at lower elevations. Besides thunderstorm outflow, wind
will mostly remain terrain driven with modest onshore westerly
pushes each afternoon in exposed areas.
CAZ201-010200-
North Coast-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Partly cloudy. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........2300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog early in the morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....53-58
* Max Humidity.......
Valleys/lwr slopes...86-100 percent
Ridges/upr slopes....77-92 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.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny. Patchy fog early in
the morning.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........2200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....52-58
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....76-91 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.
$$
CAZ202-010200-
Coastal Mendocino-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....64-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........1700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....50-56
* Max Humidity.......
Valleys/lwr slopes...86-100 percent
Ridges/upr slopes....81-96 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...63-71
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....65-75 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........1500 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....49-56
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....80-95 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-010200-
Upper Smith-Lower Middle Klamath-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny. Slight chance of showers
in the late morning and afternoon. Slight
chance of thunderstorms in the afternoon.
* Chance Lightning.......10% increasing to 20% in the afternoon.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...44-54 percent
Ridges/upr slopes....44-54 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west 5 to 7 mph in the afternoon.
* Mixing Height..........6200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......20% decreasing to 0% after midnight.
* Min Temperature.......
Valleys/lwr slopes...around 60
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....59-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 7 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..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west 5 to 7 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...56-59
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-010200-
Hoopa-Van Duzen/Mad River-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...39-49 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........4800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......10%.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...38-48 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........4800 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...53-57
Ridges/upr slopes....51-58
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....67-82 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-010200-
Trinity-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny then becoming partly cloudy.
Isolated showers and thunderstorms in the
late morning and afternoon.
* Chance Lightning.......10% increasing to 30% in the afternoon.
* Max Temperature.......
Valleys/lwr slopes...90-96
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...21-27 percent
Ridges/upr slopes....34-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
south 5 to 6 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 mph...shifting to the
west 5 to 7 mph in the afternoon.
* Mixing Height..........9600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Isolated showers and
thunderstorms in the evening.
* Chance Lightning.......30% decreasing to 0% after midnight.
* Min Temperature.......
Valleys/lwr slopes...58-62
Ridges/upr slopes....53-60
* Max Humidity.......
Valleys/lwr slopes...63-76 percent
Ridges/upr slopes....53-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the north 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny. Isolated thunderstorms in the
afternoon.
* Max Temperature.......
Valleys/lwr slopes...90-96
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...19-24 percent
Ridges/upr slopes....33-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....West winds 5 to 6 mph.
* Mixing Height..........10200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear. Isolated showers and
thunderstorms through the night.
* Min Temperature.......
Valleys/lwr slopes...57-62
Ridges/upr slopes....53-60
* Max Humidity.......
Valleys/lwr slopes...64-76 percent
Ridges/upr slopes....55-70 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.
$$
CAZ276-010200-
Interior Mendocino-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...44-54 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 11 mph.
Ridges/upr slopes....West winds 5 to 11 mph.
* Mixing Height..........4700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-60
Ridges/upr slopes....53-61
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...80-88
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...51-59
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....70-85 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-010200-
W Mendocino NF/E Mendocino Unit-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......10%.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...27-34 percent
Ridges/upr slopes....29-37 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........8800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......10%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....58-65
* Max Humidity.......
Valleys/lwr slopes...68-83 percent
Ridges/upr slopes....53-63 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph...shifting to
the northeast 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...86-94
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...28-36 percent
Ridges/upr slopes....29-37 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........8700 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...70-85 percent
Ridges/upr slopes....53-68 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.
$$
CAZ264-010200-
Lake County Portion of Lake/Napa/Sonoma RU-
206 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 88
Ridges/upr slopes....81-86
* Min Humidity.......
Valleys/lwr slopes...24 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
southwest 5 to 9 mph in the afternoon.
* Mixing Height..........8200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 57
Ridges/upr slopes....64-68
* Max Humidity.......
Valleys/lwr slopes...71 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 86
Ridges/upr slopes....80-84
* Min Humidity.......
Valleys/lwr slopes...28 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 9 mph.
Ridges/upr slopes....West winds 5 to 9 mph.
* Mixing Height..........8200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 56
Ridges/upr slopes....62-67
* Max Humidity.......
Valleys/lwr slopes...72 percent
Ridges/upr slopes....47-57 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.SATURDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
62 to 67. Northwest winds 5 mph.
.SUNDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
60 to 66. Northwest winds 5 mph.
.MONDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
61 to 67. North winds 5 mph.
...Northwest California Interior...
.SATURDAY...Mostly clear. Lows 54 to 62. Highs 81 to 94.
Northwest winds 5 mph.
.SUNDAY...Mostly clear. Lows 52 to 60. Highs 77 to 90. Northwest
winds 5 mph.
.MONDAY...Mostly clear. Lows 55 to 63. Highs 78 to 89. Northwest
winds 5 mph.
.6 to 10 DAY OUTLOOK...Tuesday August 5 THROUGH Saturday August 9, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
visit us at www.weather.gov/eureka