Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
177
FNUS56 KEKA 280714
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1214 AM PDT Thu Aug 28 2025
.DISCUSSION...Minimum RH will continue to lower Thursday, down to
the mid to low teens for the far interior. Winds will mostly be
diurnally and terrain driven. A passing shortwave will cause a
slight westerly to southerly wind surge thursday afternoon. This
will be the driest day, but overnight recoveries will be 30 to 50%.
The marine layer is relatively deep, and this is allowing for
further inland push of marine influenced air. Minimum RH and
recoveries will then trend higher through the weekend. Stronger
westerly afternoon wind surges are forecast Friday and Saturday for
Lake County where wind gusts over 20 mph are probable.
CAZ201-290115-
North Coast-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny. Patchy
dense fog early in the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...71-79
Ridges/upr slopes....68-76
* Min Humidity.......
Valleys/lwr slopes...70-80 percent
Ridges/upr slopes....62-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 mph...shifting to the west 5
to 6 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6
mph in the afternoon.
* Mixing Height..........2200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy dense fog in the
evening.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...49-54
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...75-90 percent
Ridges/upr slopes....64-79 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....Variable 1 to 3 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...67-77 percent
Ridges/upr slopes....59-69 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....Variable 2 to 4 mph...becoming west 5 to 6
mph in the afternoon.
* Mixing Height..........2300 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature.......
Valleys/lwr slopes...49-54
Ridges/upr slopes....50-57
* Max Humidity.......
Valleys/lwr slopes...72-87 percent
Ridges/upr slopes....62-77 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
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.
$$
CAZ202-290115-
Coastal Mendocino-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny. Patchy fog early in
the morning.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...64-79 percent
Ridges/upr slopes....54-64 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....Variable 2 to 4 mph...becoming southwest 5
mph in the afternoon.
* Mixing Height..........1800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...50-53
Ridges/upr slopes....46-54
* Max Humidity.......
Valleys/lwr slopes...83-98 percent
Ridges/upr slopes....74-89 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 1 to 3 mph.
Ridges/upr slopes....Variable 1 to 3 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy.
Patchy fog early in the morning.
* Max Temperature.......
Valleys/lwr slopes...66-74
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...63-78 percent
Ridges/upr slopes....53-63 percent
* 20-Foot Winds...
Valleys/lwr slopes...Light winds 2 to 4 mph...becoming
northwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6
mph in the afternoon.
* Mixing Height..........1400 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...51-54
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...78-93 percent
Ridges/upr slopes....68-83 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 mph.
Ridges/upr slopes....North winds 5 to 7 mph.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-290115-
Upper Smith-Lower Middle Klamath-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....73-81
* Min Humidity.......
Valleys/lwr slopes...37-45 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southeast winds 5 mph...shifting to the
southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 mph...shifting to the
southwest 5 to 7 mph in the afternoon.
* Mixing Height..........5300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...55-60
Ridges/upr slopes....around 60
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 7 mph...shifting to
the east 5 mph after midnight.
Ridges/upr slopes....South winds 5 to 6 mph...shifting to the
southeast 5 to 7 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...85-93
Ridges/upr slopes....71-79
* Min Humidity.......
Valleys/lwr slopes...31-39 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...East 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
southwest 5 to 7 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature.......
Valleys/lwr slopes...53-58
Ridges/upr slopes....56-59
* Max Humidity.......
Valleys/lwr slopes...55-70 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph...shifting to the
east 5 mph after midnight.
Ridges/upr slopes....West winds 5 to 7 mph...shifting to the
east 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-290115-
Hoopa-Van Duzen/Mad River-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....78-86
* Min Humidity.......
Valleys/lwr slopes...26-34 percent
Ridges/upr slopes....22-30 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to
the southwest 5 to 7 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-60
Ridges/upr slopes....54-62
* Max Humidity.......
Valleys/lwr slopes...54-69 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the east 5 mph after midnight.
Ridges/upr slopes....Southeast winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...87-95
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...22-30 percent
Ridges/upr slopes....23-31 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....Southeast winds 5 to 7 mph...shifting to
the southwest 5 to 8 mph in the afternoon.
* Mixing Height..........7100 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...52-57
Ridges/upr slopes....50-58
* Max Humidity.......
Valleys/lwr slopes...61-76 percent
Ridges/upr slopes....49-59 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 7 mph...shifting to the
northeast 5 mph after midnight.
Ridges/upr slopes....West 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.
$$
CAZ283-290115-
Trinity-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-95
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...11-15 percent
Ridges/upr slopes....13-19 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 to 7 mph.
Ridges/upr slopes....Southeast winds 5 to 8 mph...shifting to
the south in the afternoon.
* Mixing Height..........8800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...56-61
Ridges/upr slopes....54-62
* Max Humidity.......
Valleys/lwr slopes...42-52 percent
Ridges/upr slopes....30-40 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....South winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny then becoming partly cloudy.
* Max Temperature.......
Valleys/lwr slopes...89-96
Ridges/upr slopes....75-83
* Min Humidity.......
Valleys/lwr slopes...14-19 percent
Ridges/upr slopes....16-24 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....South winds 5 to 8 mph.
* Mixing Height..........10300 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...54-60
Ridges/upr slopes....52-59
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....39-49 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph.
Ridges/upr slopes....Southwest 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.
$$
CAZ276-290115-
Interior Mendocino-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...32-40 percent
Ridges/upr slopes....38-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 7 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph.
* Mixing Height..........4100 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....52-60
* Max Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....58-73 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....Northwest winds 5 to 6 mph...shifting to
the east 5 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...82-90
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...33-41 percent
Ridges/upr slopes....38-46 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..........6200 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming mostly clear.
* Min Temperature.......
Valleys/lwr slopes...51-59
Ridges/upr slopes....52-60
* Max Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....55-70 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the
north 5 to 6 mph after midnight.
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.
$$
CAZ277-290115-
W Mendocino NF/E Mendocino Unit-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...88-96
Ridges/upr slopes....77-85
* Min Humidity.......
Valleys/lwr slopes...14-21 percent
Ridges/upr slopes....13-18 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the southwest 5 to 8 mph in the afternoon.
Ridges/upr slopes....South winds 5 to 9 mph.
* Mixing Height..........8300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...54-62
Ridges/upr slopes....59-66
* Max Humidity.......
Valleys/lwr slopes...46-56 percent
Ridges/upr slopes....30-38 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Southwest winds 5 to 7 mph...shifting to
the southeast 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny then becoming partly cloudy then
becoming sunny.
* Max Temperature.......
Valleys/lwr slopes...89-97
Ridges/upr slopes....76-84
* Min Humidity.......
Valleys/lwr slopes...17-23 percent
Ridges/upr slopes....17-24 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southwest 5 to 9 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 6 to 10 mph in the afternoon.
* Mixing Height..........9400 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...50-58
Ridges/upr slopes....56-64
* Max Humidity.......
Valleys/lwr slopes...50-60 percent
Ridges/upr slopes....33-43 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 9 mph...shifting to the
north 5 mph after midnight.
Ridges/upr slopes....West winds 5 to 10 mph...shifting to the
north 5 to 6 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-290115-
Lake County Portion of Lake/Napa/Sonoma RU-
1214 AM PDT Thu Aug 28 2025
.TODAY...
* Sky/Weather............Sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 88
Ridges/upr slopes....81-86
* Min Humidity.......
Valleys/lwr slopes...14 percent
Ridges/upr slopes....14-22 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 8 mph.
Ridges/upr slopes....South winds 5 to 10 mph.
* Mixing Height..........7800 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 57
Ridges/upr slopes....65-70
* Max Humidity.......
Valleys/lwr slopes...45 percent
Ridges/upr slopes....31-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 90
Ridges/upr slopes....81-86
* Min Humidity.......
Valleys/lwr slopes...18 percent
Ridges/upr slopes....19-27 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 mph...shifting to the
southwest 6 to 9 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to
the southwest 5 to 11 mph in the
afternoon.
* Mixing Height..........9700 ft AGL.
* Chc of Wetting Rain....0 percent.
.FRIDAY NIGHT...
* Sky/Weather............Partly cloudy then becoming clear.
* Min Temperature.......
Valleys/lwr slopes...around 56
Ridges/upr slopes....64-67
* Max Humidity.......
Valleys/lwr slopes...48 percent
Ridges/upr slopes....31-41 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 6 to 9 mph...shifting to the
northwest 7 mph after midnight.
Ridges/upr slopes....Northwest winds 6 to 12 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.SATURDAY...Partly cloudy. Lows in the lower to mid 50s. Highs
65 to 72. North winds 5 mph.
.SUNDAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
64 to 71. North winds 5 mph.
.LABOR DAY...Mostly cloudy. Lows in the lower to mid 50s. Highs
63 to 70. Northwest winds 5 mph.
...Northwest California Interior...
.SATURDAY...Mostly clear. Lows 54 to 62. Highs 82 to 94.
Northwest winds 5 mph.
.SUNDAY...Mostly clear. Lows 55 to 63. Highs 83 to 95. Northwest
winds 5 mph.
.LABOR DAY...Mostly clear. Lows 56 to 64. Highs 84 to 95.
Northwest winds 5 mph.
.6 to 10 DAY OUTLOOK...Tuesday September 2 THROUGH Saturday September 6, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
$$
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