Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
570
FNUS56 KEKA 031848
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1148 AM PDT Sun Aug 3 2025
...CHANCE OF ISOLATED THUNDERSTORMS SUNDAY AFTERNOON FOR MOSTLY ZONE 283...
...CHANCE OF DRY/WINDY CONDITIONS MOSTLY FOR ZONES 283, 277, AND 264...
.DISCUSSION...Chance for afternoon thunderstorms in the Trinity
Horn will continue today. Winds will remain mostly terrain driven
with modest onshore westerly pushes in exposed areas. Stronger onshore
wind is expected with a cold front on Sunday. The frontal passage
on Sunday will likely induce stronger westerly to northwesterly
winds for our typically dry and windy areas; Lake, interior Mendocino
and eastern Trinity.
CAZ201-041330-
North Coast-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....48-52
* Max Humidity.......
Valleys/lwr slopes...84-99 percent
Ridges/upr slopes....77-92 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...70-80 percent
Ridges/upr slopes....68-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Partly cloudy. Patchy fog early in the
morning.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....48-54
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 11 mph.
Ridges/upr slopes....North winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...71-79
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...63-73 percent
Ridges/upr slopes....59-69 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........2600 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-041330-
Coastal Mendocino-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....46-54
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...61-69
Ridges/upr slopes....64-72
* Min Humidity.......
Valleys/lwr slopes...68-83 percent
Ridges/upr slopes....58-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........1800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...49-52
Ridges/upr slopes....46-54
* Max Humidity.......
Valleys/lwr slopes...81-96 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........1700 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-041330-
Upper Smith-Lower Middle Klamath-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 50
Ridges/upr slopes....around 50
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....57-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 10 mph.
Ridges/upr slopes....Northwest winds 5 to 10 mph...shifting to
the north after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....62-70
* Min Humidity.......
Valleys/lwr slopes...43-53 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....52-55
* Max Humidity.......
Valleys/lwr slopes...69-84 percent
Ridges/upr slopes....55-65 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....West winds 5 to 9 mph...shifting to the
northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...81-89
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...37-47 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 mph...shifting to the
west 5 to 7 mph in the afternoon.
* Mixing Height..........5700 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-041330-
Hoopa-Van Duzen/Mad River-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...47-51
Ridges/upr slopes....43-51
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....58-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...31-41 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........3900 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...48-52
Ridges/upr slopes....46-53
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....60-75 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....North winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...81-89
Ridges/upr slopes....72-80
* Min Humidity.......
Valleys/lwr slopes...27-35 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
northwest 5 to 7 mph in the afternoon.
Ridges/upr slopes....North winds 5 mph...shifting to the
northwest 5 to 7 mph in the afternoon.
* Mixing Height..........5200 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-041330-
Trinity-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....46-53
* Max Humidity.......
Valleys/lwr slopes...61-71 percent
Ridges/upr slopes....54-64 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph decreasing to
5 to 8 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-88
Ridges/upr slopes....67-75
* Min Humidity.......
Valleys/lwr slopes...21-27 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 10 mph.
Ridges/upr slopes....West winds 5 to 10 mph.
* Mixing Height..........6500 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....48-55
* Max Humidity.......
Valleys/lwr slopes...58-71 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..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...87-93
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...20-25 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 mph in the afternoon.
Ridges/upr slopes....North winds 5 to 6 mph...shifting to the
west in the afternoon.
* Mixing Height..........7800 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-041330-
Interior Mendocino-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...47-55
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...67-82 percent
Ridges/upr slopes....62-77 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 8 to 15 mph.
Ridges/upr slopes....Northwest winds 8 to 15 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...41-51 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 14 mph.
Ridges/upr slopes....Northwest winds 7 to 14 mph.
* Mixing Height..........3100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...48-55
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...70-85 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 14 mph.
Ridges/upr slopes....Northwest winds 7 to 14 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...80-88
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...35-45 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the west 5
to 7 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........5400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-041330-
W Mendocino NF/E Mendocino Unit-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...46-54
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....46-56 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 13 mph.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....70-78
* Min Humidity.......
Valleys/lwr slopes...26-32 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 11 mph.
Ridges/upr slopes....West winds 5 to 11 mph.
* Mixing Height..........5600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...49-57
Ridges/upr slopes....53-60
* Max Humidity.......
Valleys/lwr slopes...62-77 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 11 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....West winds 5 to 9 mph...shifting to the
north 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...86-94
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...25-30 percent
Ridges/upr slopes....27-35 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 mph...shifting to the
southwest 5 to 6 mph in the afternoon.
* Mixing Height..........7400 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-041330-
Lake County Portion of Lake/Napa/Sonoma RU-
1148 AM PDT Sun Aug 3 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 52
Ridges/upr slopes....56-62
* Max Humidity.......
Valleys/lwr slopes...58 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 8 to 14 mph.
Ridges/upr slopes....Northwest winds 7 to 14 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 78
Ridges/upr slopes....72-77
* Min Humidity.......
Valleys/lwr slopes...29 percent
Ridges/upr slopes....31-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 7 to 12 mph.
Ridges/upr slopes....Northwest winds 6 to 12 mph.
* Mixing Height..........6100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...around 52
Ridges/upr slopes....58-63
* Max Humidity.......
Valleys/lwr slopes...64 percent
Ridges/upr slopes....43-53 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 12 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 87
Ridges/upr slopes....78-83
* Min Humidity.......
Valleys/lwr slopes...24 percent
Ridges/upr slopes....26-34 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 mph...shifting to the
west in the afternoon.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
west in the afternoon.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.WEDNESDAY...Partly cloudy. Lows in the lower to mid 50s. Highs
64 to 71. North winds 5 mph.
.THURSDAY...Mostly cloudy with slight chance of showers and
thunderstorms. Patchy fog. Lows in the mid to upper 50s. Highs
63 to 71. Northwest winds 5 mph.
.FRIDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
65 to 74. North winds 5 mph.
...Northwest California Interior...
.WEDNESDAY...Mostly clear. Lows 56 to 64. Highs 82 to 94.
Northwest winds 5 mph.
.THURSDAY...Mostly clear. Lows 56 to 64. Highs 84 to 95.
Northwest winds 5 mph.
.FRIDAY...Mostly clear. Lows 58 to 66. Highs 88 to 99. Northwest
winds 5 mph.
.6 to 10 DAY OUTLOOK...Saturday August 9 THROUGH Wednesday August 13, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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