Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
893
FNUS56 KEKA 301855
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1155 AM PDT Sat Aug 30 2025
...ELEVATED FIRE WEATHER THREAT DUE TO LOW RH AND BREEZY WEST
WINDS IN 277, 283 and 264 THIS WEEKEND IN THE AFTERNOON AND
EVENING...
.DISCUSSION...Dry weather will continue through early next week,
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. Over the weekend a a
period of enhance 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.
CAZ201-311330-
North Coast-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy dense fog in the
late evening and overnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-54
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...61-71 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........2400 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog early in the
morning.
* Min Temperature.......
Valleys/lwr slopes...48-55
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...80-95 percent
Ridges/upr slopes....70-85 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...70-80 percent
Ridges/upr slopes....62-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-311330-
Coastal Mendocino-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...73-88 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 9 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...69-77
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...57-67 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........1500 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Partly cloudy. Patchy fog after midnight.
* Min Temperature.......
Valleys/lwr slopes...51-54
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...82-97 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...66-76 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........1400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-311330-
Upper Smith-Lower Middle Klamath-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Partly cloudy. Areas of smoke after
midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-56
Ridges/upr slopes....56-59
* Max Humidity.......
Valleys/lwr slopes...54-69 percent
Ridges/upr slopes....36-46 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 7 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...30-38 percent
Ridges/upr slopes....29-37 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
west 5 to 8 mph in the afternoon.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy smoke early in the
morning.
* Min Temperature.......
Valleys/lwr slopes...51-56
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest 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 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny. Patchy smoke early in the morning.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....74-82
* Min Humidity.......
Valleys/lwr slopes...34-42 percent
Ridges/upr slopes....32-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
west in the afternoon.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-311330-
Hoopa-Van Duzen/Mad River-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...51-57
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...57-72 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....North winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...84-92
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...27-35 percent
Ridges/upr slopes....29-37 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........4300 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...50-57
Ridges/upr slopes....51-59
* Max Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....50-60 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....80-88
* Min Humidity.......
Valleys/lwr slopes...21-29 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
northwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........6800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-311330-
Trinity-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy smoke.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...53-60
Ridges/upr slopes....54-61
* Max Humidity.......
Valleys/lwr slopes...45-55 percent
Ridges/upr slopes....31-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....West 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.
.SUNDAY...
* Sky/Weather............Sunny. Patchy smoke in the morning. Haze
in the late morning and early afternoon.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...91-97
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...12-15 percent
Ridges/upr slopes....13-19 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 8 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 7 mph...shifting to
the southwest 5 to 8 mph in the afternoon.
* Mixing Height..........7800 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy smoke until early
morning. Haze early in the morning.
* Min Temperature.......
Valleys/lwr slopes...53-60
Ridges/upr slopes....54-61
* Max Humidity.......
Valleys/lwr slopes...47-57 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...93-99
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...10-13 percent
Ridges/upr slopes....13-18 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 6 mph...shifting to the
south 5 to 8 mph in the afternoon.
* Mixing Height..........9200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-311330-
Interior Mendocino-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-57
Ridges/upr slopes....54-62
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...83-91
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...28-36 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........3700 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...49-57
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...62-77 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....83-91
* Min Humidity.......
Valleys/lwr slopes...27-35 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the west 5
to 8 mph in the afternoon.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
west in the afternoon.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-311330-
W Mendocino NF/E Mendocino Unit-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....57-65
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 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.
.SUNDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...13-20 percent
Ridges/upr slopes....13-18 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...51-59
Ridges/upr slopes....58-66
* Max Humidity.......
Valleys/lwr slopes...52-62 percent
Ridges/upr slopes....33-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph...shifting to
the north 5 to 6 mph after midnight.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the northeast 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...95-103
Ridges/upr slopes....82-90
* Min Humidity.......
Valleys/lwr slopes...13-17 percent
Ridges/upr slopes....13-18 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 mph...shifting to the
southwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
south 5 to 8 mph in the afternoon.
* Mixing Height..........9500 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-311330-
Lake County Portion of Lake/Napa/Sonoma RU-
1155 AM PDT Sat Aug 30 2025
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 57
Ridges/upr slopes....65-68
* Max Humidity.......
Valleys/lwr slopes...41 percent
Ridges/upr slopes....26-34 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 89
Ridges/upr slopes....83-87
* Min Humidity.......
Valleys/lwr slopes...13 percent
Ridges/upr slopes....15-20 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SUNDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 58
Ridges/upr slopes....65-69
* Max Humidity.......
Valleys/lwr slopes...47 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.LABOR DAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 94
Ridges/upr slopes....86-92
* Min Humidity.......
Valleys/lwr slopes...12 percent
Ridges/upr slopes....15-20 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
southwest in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the southwest 5 to 7 mph in the afternoon.
* Mixing Height..........9500 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.TUESDAY...Partly cloudy. Lows in the lower to mid 50s. Highs
65 to 73. North winds 5 mph.
.WEDNESDAY...Mostly cloudy. Patchy fog. Lows in the 50s. Highs
64 to 72. Northwest winds 5 mph.
.THURSDAY...Mostly cloudy. Patchy fog. Lows in the lower to mid
50s. Highs 64 to 71. Winds generally less than 5 mph.
...Northwest California Interior...
.TUESDAY...Mostly clear. Lows 60 to 68. Highs 90 to 101. North
winds 5 mph.
.WEDNESDAY...Mostly clear. Lows 58 to 66. Highs 87 to 98.
Southeast winds 5 mph.
.THURSDAY...Partly cloudy. Lows 57 to 65. 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 NEAR NORMAL PRECIPITATION.
$$
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