Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
730
FNUS56 KEKA 100854
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
154 AM PDT Sun Aug 10 2025
...GUSTY OFFSHORE WINDS AND POOR RH RECOVERIES WILL BRING ELEVATED
FIRE WEATHER CONDITIONS FOR INTERIOR DEL NORTE COUNTY THIS MORNING...
...HOT AND DRY CONDITIONS WILL INCREASE FIRE DANGER FOR ALL
INTERIOR ZONES TODAY AND MONDAY...
.DISCUSSION...Dry northeast flow and poor overnight RH recoveries
on the ridges are promoting elevated fire weather conditions
through today. Otherwise, hot and drier weather conditions are
expected through Tuesday with generally weak, terrain-driven wind
with low mixing heights though Tuesday. Interior highs peaking in
excess of 100 Today and Monday. Daytime RH in the teens percent
and perhaps even the single digits, especially in Trinity County.
Marine influence will be restricted to only the immediate coast.
Dry weather will continue next week, but with a gradual cooling
trend and improved RH recoveries by mid to late next week. On
Thursday, elevated fire weather threat should be possible with
enhanced onshore winds and low daytime RH in the teens and 20`s,
especially in Lake County.
CAZ201-110115-
North Coast-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...80-88
Ridges/upr slopes....79-87
* Min Humidity.......
Valleys/lwr slopes...58-68 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph...shifting to
the west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 7 mph...shifting to
the west 5 to 6 mph in the afternoon.
* Mixing Height..........2000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy dense fog after
midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....60-68
* Max Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....53-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....North winds 5 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny. Patchy dense fog early in the
morning.
* Max Temperature.......
Valleys/lwr slopes...79-87
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...62-72 percent
Ridges/upr slopes....56-66 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6
mph in the afternoon.
* Mixing Height..........2000 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy dense fog until early
morning.
* Min Temperature.......
Valleys/lwr slopes...55-61
Ridges/upr slopes....55-62
* Max Humidity.......
Valleys/lwr slopes...76-91 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-110115-
Coastal Mendocino-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...72-80
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...63-73 percent
Ridges/upr slopes....45-55 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 7 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph.
* Mixing Height..........1400 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...52-56
Ridges/upr slopes....54-59
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....64-79 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...70-78
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...64-74 percent
Ridges/upr slopes....48-58 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6
mph in the afternoon.
* Mixing Height..........1200 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy fog after midnight.
* Min Temperature.......
Valleys/lwr slopes...52-55
Ridges/upr slopes....49-57
* Max Humidity.......
Valleys/lwr slopes...80-95 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....West winds 5 mph in the evening...becoming
downslope/downvalley 1 to 3 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-110115-
Upper Smith-Lower Middle Klamath-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...100-108
Ridges/upr slopes....87-95
* Min Humidity.......
Valleys/lwr slopes...21-29 percent
Ridges/upr slopes....20-28 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 9 mph...shifting to
the west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 11 mph...shifting to
the northwest 5 to 7 mph in the afternoon.
* Mixing Height..........8500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...66-69
Ridges/upr slopes....68-72
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....33-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 7 mph...shifting to
the east 5 to 6 mph after midnight.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
northeast after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...97-105
Ridges/upr slopes....82-90
* 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
southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 7 mph...shifting to the
west in the afternoon.
* Mixing Height..........5800 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...63-67
Ridges/upr slopes....65-68
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....41-51 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.
$$
CAZ211-212-110115-
Hoopa-Van Duzen/Mad River-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...98-106
Ridges/upr slopes....88-96
* Min Humidity.......
Valleys/lwr slopes...17-25 percent
Ridges/upr slopes....18-26 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
northwest 5 to 10 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 10 mph...shifting to the
west 5 to 8 mph in the afternoon.
* Mixing Height..........6300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...64-69
Ridges/upr slopes....62-70
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest 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.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...96-104
Ridges/upr slopes....87-95
* Min Humidity.......
Valleys/lwr slopes...22-30 percent
Ridges/upr slopes....25-33 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
northwest 5 to 9 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
west 5 to 8 mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...60-66
Ridges/upr slopes....60-68
* Max Humidity.......
Valleys/lwr slopes...54-69 percent
Ridges/upr slopes....45-55 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....West winds 5 to 7 mph...shifting to the
northeast 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-110115-
Trinity-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...100-106
Ridges/upr slopes....86-94
* Min Humidity.......
Valleys/lwr slopes...9-12 percent
Ridges/upr slopes....13-18 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph.
Ridges/upr slopes....East winds 5 to 7 mph.
* Mixing Height..........10000 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...65-69
Ridges/upr slopes....63-70
* Max Humidity.......
Valleys/lwr slopes...39-49 percent
Ridges/upr slopes....30-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 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.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...102-108
Ridges/upr slopes....86-94
* Min Humidity.......
Valleys/lwr slopes...11-14 percent
Ridges/upr slopes....14-21 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 to 7 mph in the afternoon.
* Mixing Height..........9600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...64-68
Ridges/upr slopes....61-68
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....35-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph in the
evening...becoming downslope/downvalley 2
to 5 mph.
Ridges/upr slopes....West winds 5 to 8 mph...shifting to the
north 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-110115-
Interior Mendocino-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...93-101
Ridges/upr slopes....87-95
* Min Humidity.......
Valleys/lwr slopes...25-33 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 6 mph...shifting to the
west 5 to 9 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 6 mph...shifting to the
west 5 to 8 mph in the afternoon.
* Mixing Height..........4800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...60-68
Ridges/upr slopes....60-68
* Max Humidity.......
Valleys/lwr slopes...53-63 percent
Ridges/upr slopes....52-62 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.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...90-98
Ridges/upr slopes....85-93
* Min Humidity.......
Valleys/lwr slopes...28-36 percent
Ridges/upr slopes....34-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
west 5 to 11 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 mph...shifting to the
west 5 to 9 mph in the afternoon.
* Mixing Height..........3600 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...57-65
Ridges/upr slopes....57-65
* Max Humidity.......
Valleys/lwr slopes...56-71 percent
Ridges/upr slopes....56-71 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 8 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-110115-
W Mendocino NF/E Mendocino Unit-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...97-105
Ridges/upr slopes....86-94
* Min Humidity.......
Valleys/lwr slopes...16-21 percent
Ridges/upr slopes....16-22 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 9 mph.
Ridges/upr slopes....Southwest winds 5 to 9 mph.
* Mixing Height..........8200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...62-70
Ridges/upr slopes....66-73
* Max Humidity.......
Valleys/lwr slopes...42-52 percent
Ridges/upr slopes....31-39 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 7 mph...shifting to
the northeast 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...99-107
Ridges/upr slopes....87-95
* Min Humidity.......
Valleys/lwr slopes...16-22 percent
Ridges/upr slopes....17-22 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 10 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 to 8 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...61-69
Ridges/upr slopes....65-72
* Max Humidity.......
Valleys/lwr slopes...48-58 percent
Ridges/upr slopes....35-45 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....West winds 5 to 8 mph...shifting to the
north 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-110115-
Lake County Portion of Lake/Napa/Sonoma RU-
154 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 98
Ridges/upr slopes....91-95
* Min Humidity.......
Valleys/lwr slopes...13 percent
Ridges/upr slopes....17-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 8 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........7200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 65
Ridges/upr slopes....71-75
* Max Humidity.......
Valleys/lwr slopes...42 percent
Ridges/upr slopes....30-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 6 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 9 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 97
Ridges/upr slopes....90-94
* Min Humidity.......
Valleys/lwr slopes...16 percent
Ridges/upr slopes....18-25 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to
the west 5 to 8 mph in the afternoon.
* Mixing Height..........6400 ft AGL.
* Chc of Wetting Rain....0 percent.
.MONDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 63
Ridges/upr slopes....69-73
* Max Humidity.......
Valleys/lwr slopes...48 percent
Ridges/upr slopes....34-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 11 mph.
Ridges/upr slopes....Northwest winds 5 to 11 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.TUESDAY...Mostly cloudy. Patchy fog in the morning. Patchy fog.
Slight chance of drizzle after midnight. Lows in the lower to mid
50s. Highs 65 to 73. Winds generally less than 5 mph.
.WEDNESDAY...Mostly cloudy. Patchy fog in the morning. Slight
chance of drizzle in the morning. Lows in the lower to mid 50s.
Highs 63 to 70. Northwest winds 5 mph.
.THURSDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
63 to 68. Northwest winds 5 mph.
...Northwest California Interior...
.TUESDAY...Clear. Lows 56 to 64. Highs 89 to 102. West winds
5 mph.
.WEDNESDAY...Mostly clear. Lows 55 to 63. Highs 84 to 97. West
winds 5 mph.
.THURSDAY...Mostly clear. Lows 53 to 61. Highs 82 to 95.
Northwest winds 5 mph.
.6 to 10 DAY OUTLOOK...Friday August 15 THROUGH Tuesday August 19, 2025...
FOR NW CALIF...BELOW NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
$$
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