Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
209
FNUS56 KEKA 130726
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1226 AM PDT Wed Aug 13 2025
...GUSTY NORTHWEST WINDS AND DRY CONDITIONS WILL GENERATE ENHANCED
FIRE WEATHER CONCERNS THURSDAY AND FRIDAY ACROSS THE INTERIOR BUT
ESPECIALLY IN LAKE, MENDOCINO, AND TRINITY COUNTIES...
.DISCUSSION...Hot, dry weather continues to ease for the next few
days in the interior, with a shallow marine layer mainly confined to
the immediate coast. Winds remain relatively weak and terrain
driven through Wednesday. Marine layer will trend deeper through
late week as low pressure rebuilds aloft. This will bring a
gradual cooling trend and improved RH recoveries, though daytime
RH will generally still remain no better than about 25 percent.
On Thursday and especially Friday, an elevated fire danger will be
elevated with enhanced onshore winds gusting up to 30 mph in the
afternoon and low daytime RH in the teens and 20`s.
CAZ201-140115-
North Coast-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
dense fog in the morning.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...69-79 percent
Ridges/upr slopes....60-70 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........1700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy dense fog in the
late evening and overnight.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....52-58
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 8 to 15 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
dense fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...71-79
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...68-78 percent
Ridges/upr slopes....61-71 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 14 mph.
Ridges/upr slopes....Northwest winds 8 to 15 mph.
* Mixing Height..........2000 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...52-57
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....72-87 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.
$$
CAZ202-140115-
Coastal Mendocino-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming sunny. Patchy
dense fog in the morning. Slight chance of
drizzle in the morning.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...64-72
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...71-86 percent
Ridges/upr slopes....63-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 8 mph.
* Mixing Height..........1200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy
then becoming partly cloudy. Patchy fog in
the late evening and overnight.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....50-55
* Max Humidity.......
Valleys/lwr slopes...91-100 percent
Ridges/upr slopes....82-97 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...65-80 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...53-58
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-140115-
Upper Smith-Lower Middle Klamath-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...26-34 percent
Ridges/upr slopes....32-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
northwest 5 to 9 mph in the afternoon.
* Mixing Height..........5600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...56-60
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...69-84 percent
Ridges/upr slopes....52-62 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 mph...shifting to
the northeast after midnight.
Ridges/upr slopes....North winds 5 to 9 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...31-39 percent
Ridges/upr slopes....32-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 7 mph...shifting to the
southwest 5 to 10 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........5000 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...55-58
Ridges/upr slopes....56-59
* Max Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 11 mph...shifting to the
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 10 mph...shifting to
the north 5 to 6 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-140115-
Hoopa-Van Duzen/Mad River-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........4000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...55-59
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....59-74 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...27-35 percent
Ridges/upr slopes....35-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 10 to 17 mph.
Ridges/upr slopes....Northwest winds 10 to 17 mph.
* Mixing Height..........3800 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...54-58
Ridges/upr slopes....51-58
* Max Humidity.......
Valleys/lwr slopes...72-87 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 10 to 17 mph...shifting to
the north 5 to 7 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-140115-
Trinity-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...94-100
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...13-17 percent
Ridges/upr slopes....17-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 11 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 6 mph...shifting to the
west 5 to 9 mph in the afternoon.
* Mixing Height..........8100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...58-62
Ridges/upr slopes....55-61
* Max Humidity.......
Valleys/lwr slopes...63-74 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph decreasing to 5
to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...90-96
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...16-21 percent
Ridges/upr slopes....21-29 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 14 mph.
Ridges/upr slopes....Northwest winds 7 to 14 mph.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...56-60
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...55-67 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-140115-
Interior Mendocino-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...37-47 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 6 to 13 mph.
Ridges/upr slopes....West winds 6 to 13 mph.
* Mixing Height..........2500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....54-62
* Max Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....70-85 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...36-44 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 10 to 17 mph.
Ridges/upr slopes....Northwest winds 10 to 17 mph.
* Mixing Height..........3300 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....55-63
* Max Humidity.......
Valleys/lwr slopes...65-80 percent
Ridges/upr slopes....60-75 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 10 to 17 mph.
Ridges/upr slopes....Northwest winds 10 to 17 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-140115-
W Mendocino NF/E Mendocino Unit-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...91-99
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...18-26 percent
Ridges/upr slopes....19-27 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 12 mph.
Ridges/upr slopes....West winds 5 to 12 mph.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...65-80 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph...shifting to
the north 5 to 7 mph after midnight.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...19-25 percent
Ridges/upr slopes....20-28 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 9 to 16 mph.
Ridges/upr slopes....Northwest winds 9 to 16 mph.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....57-65
* Max Humidity.......
Valleys/lwr slopes...57-72 percent
Ridges/upr slopes....42-52 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 14 mph.
Ridges/upr slopes....Northwest winds 7 to 14 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-140115-
Lake County Portion of Lake/Napa/Sonoma RU-
1226 AM PDT Wed Aug 13 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......MISSING.
* Max Temperature.......
Valleys/lwr slopes...around 89
Ridges/upr slopes....82-87
* Min Humidity.......
Valleys/lwr slopes...21 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........4500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......MISSING.
* Min Temperature.......
Valleys/lwr slopes...around 57
Ridges/upr slopes....64-67
* Max Humidity.......
Valleys/lwr slopes...72 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 88
Ridges/upr slopes....80-85
* Min Humidity.......
Valleys/lwr slopes...22 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 mph...shifting to the
west 8 to 12 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........6100 ft AGL.
* Chc of Wetting Rain....0 percent.
.THURSDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 59
Ridges/upr slopes....65-69
* Max Humidity.......
Valleys/lwr slopes...55 percent
Ridges/upr slopes....38-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 9 to 16 mph.
Ridges/upr slopes....Northwest winds 9 to 16 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.FRIDAY...Mostly cloudy. Patchy fog after midnight. Slight chance
of drizzle after midnight. Lows in the mid to upper 50s. Highs
64 to 71. Northwest winds 5 mph.
.SATURDAY...Mostly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Chance of drizzle in the morning. Slight chance
of drizzle. Lows in the mid to upper 50s. Highs 64 to 70.
Northwest winds 5 mph.
.SUNDAY...Mostly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Lows in the lower to mid 50s. Highs 62 to 68.
Northwest winds 5 mph.
...Northwest California Interior...
.FRIDAY...Mostly clear. Lows 56 to 64. Highs 81 to 93. Northwest
winds 5 mph.
.SATURDAY...Partly cloudy. Lows 55 to 63. Highs 77 to 89.
Northwest winds 5 mph.
.SUNDAY...Mostly clear. Lows 51 to 59. Highs 76 to 86. West winds
5 mph.
.6 to 10 DAY OUTLOOK...Monday August 18 THROUGH Friday August 22, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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