Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
845
FNUS56 KEKA 310710
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1210 AM PDT Sun Aug 31 2025
...ELEVATED FIRE WEATHER THREAT DUE TO LOW RH AND BREEZY WEST
WINDS IN 277, 283 and 264 SUNDAY IN THE AFTERNOON AND
EVENING...
...There is a slight chance of thunderstorms Tuesday afternoon
in zone 283 and 277...
.DISCUSSION...Dry weather will continue through Monday with low
daytime RH values in the teens and poor to moderate humidity
recoveries in areas well away from the coast. Winds will generally
be diurnally and terrain driven. Today a period of enhanced
afternoon winds with gusts to 25 mph is expected. Next week a
warming and drying trend is expected with high temperatures
forecasted to peak in the upper 90s to near 105 across the
interior valleys on Tuesday. There is also a slight chance of
afternoon and evening thunderstorms on Tuesday, mainly in Trinity
county.
CAZ201-010115-
North Coast-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
dense fog in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...59-69 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........2400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy dense fog in the
late evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-55
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...66-76 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
northwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 9 mph...shifting to
the northwest in the afternoon.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy dense fog early in
the morning.
* Min Temperature.......
Valleys/lwr slopes...50-57
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph...shifting to
the northeast after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-010115-
Coastal Mendocino-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....38-48 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........1500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-55
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny. Patchy fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...63-73 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........1500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....63-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-010115-
Upper Smith-Lower Middle Klamath-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Sunny. Areas of smoke in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....24-32 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....North winds 5 mph...shifting to the west 5
to 7 mph in the afternoon.
* Mixing Height..........4400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Areas of smoke after
midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...62-77 percent
Ridges/upr slopes....44-54 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the east after midnight.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the east 5 to 8 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny. Patchy smoke until late afternoon.
* Max Temperature.......
Valleys/lwr slopes...86-94
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the
west in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph...shifting to the
west 5 to 6 mph in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...55-60
Ridges/upr slopes....60-63
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the
east 5 to 6 mph after midnight.
Ridges/upr slopes....West winds 5 to 7 mph...shifting to the
east 5 to 9 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-010115-
Hoopa-Van Duzen/Mad River-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....24-32 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 mph...shifting to the west 5
to 6 mph in the afternoon.
* Mixing Height..........4300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
northeast after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...21-29 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 7 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...53-68 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to
the northeast 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 5 to 10 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-010115-
Trinity-
1210 AM PDT Sun Aug 31 2025
...There is a slight chance of thunderstorms Tuesday afternoon...
.TODAY...
* Sky/Weather............Sunny. Patchy smoke in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...91-96
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...12-15 percent
Ridges/upr slopes....14-19 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 8 mph.
* Mixing Height..........7900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy smoke in the late
evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-61
Ridges/upr slopes....54-61
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
east 5 to 8 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...93-98
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...10-13 percent
Ridges/upr slopes....11-16 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph...shifting to the
south 5 to 9 mph in the afternoon.
* Mixing Height..........8800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...56-64
Ridges/upr slopes....57-65
* Max Humidity.......
Valleys/lwr slopes...41-51 percent
Ridges/upr slopes....31-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the northwest after midnight.
Ridges/upr slopes....Southwest winds 5 to 7 mph...shifting to
the northeast 5 to 9 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-010115-
Interior Mendocino-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...24-32 percent
Ridges/upr slopes....26-34 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-57
Ridges/upr slopes....53-61
* Max Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....82-90
* Min Humidity.......
Valleys/lwr slopes...22-30 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the west 5
to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to
the west 5 to 6 mph in the afternoon.
* Mixing Height..........6700 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...56-64
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 5 to 8 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-010115-
W Mendocino NF/E Mendocino Unit-
1210 AM PDT Sun Aug 31 2025
...There is a slight chance of thunderstorms Tuesday afternoon...
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...12-17 percent
Ridges/upr slopes....11-16 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the west 5
to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the west 5
to 8 mph in the afternoon.
* Mixing Height..........6400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-59
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...54-64 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 8 mph...shifting to
the east 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...93-101
Ridges/upr slopes....81-89
* Min Humidity.......
Valleys/lwr slopes...13-16 percent
Ridges/upr slopes....12-16 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
south 5 to 10 mph in the afternoon.
* Mixing Height..........9100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...56-64
Ridges/upr slopes....63-71
* Max Humidity.......
Valleys/lwr slopes...43-53 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the
northeast 5 to 6 mph after midnight.
Ridges/upr slopes....West winds 5 to 9 mph...shifting to the
northeast 5 to 7 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-010115-
Lake County Portion of Lake/Napa/Sonoma RU-
1210 AM PDT Sun Aug 31 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 89
Ridges/upr slopes....84-87
* Min Humidity.......
Valleys/lwr slopes...10 percent
Ridges/upr slopes....11-16 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 11 mph.
* Mixing Height..........7000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 58
Ridges/upr slopes....65-69
* Max Humidity.......
Valleys/lwr slopes...45 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 93
Ridges/upr slopes....86-91
* Min Humidity.......
Valleys/lwr slopes...10 percent
Ridges/upr slopes....14-17 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 6 mph...shifting to the
southwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....North winds 5 to 8 mph...shifting to the
southwest 5 to 10 mph in the afternoon.
* Mixing Height..........9500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 63
Ridges/upr slopes....71-74
* Max Humidity.......
Valleys/lwr slopes...35 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the
north 6 to 9 mph after midnight.
Ridges/upr slopes....West winds 6 to 11 mph...shifting to the
north 6 to 9 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.TUESDAY...Partly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Lows in the lower to mid 50s. Highs 64 to 72.
Northwest winds 5 mph.
.WEDNESDAY...Mostly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Lows in the lower to mid 50s. Highs 64 to 71.
Northwest winds 5 mph.
.THURSDAY...Mostly cloudy. Patchy fog in the morning. Patchy fog
after midnight. Lows in the lower to mid 50s. Highs 64 to 71.
Northwest winds 5 mph.
...Northwest California Interior...
.TUESDAY...Mostly clear. SLight chance of thunderstorms. Lows 56 to 64.
Highs 89 to 100. Northwest winds 5 mph.
.WEDNESDAY...Mostly clear. Lows 58 to 66. Highs 87 to 97.
Northwest winds 5 mph.
.THURSDAY...Partly cloudy. Lows 56 to 64. Highs 86 to 97. West
winds 5 mph.
.6 to 10 DAY OUTLOOK...Friday September 5 THROUGH Tuesday September 9, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
$$
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