Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
337
FNUS56 KEKA 170748
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE Eureka CA
1248 AM PDT Fri Oct 17 2025
.DISCUSSION...Conditions will very slowly warm and dry through
the end of the week with daytime RH near 30 percent and highs
barely reaching 80 degrees for interior valleys Friday and
Saturday. Breezy offshore winds are possible in the higher terrain
Thursday and Friday nights but otherwise daytime winds will be
very light. A weak front will bring a slight chance for a wetting
rainfall Sunday morning for mainly fro coastal Del Norte County.
CAZ201-180115-
North Coast-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....62-70
* Min Humidity.......
Valleys/lwr slopes...66-76 percent
Ridges/upr slopes....58-68 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 9 mph.
Ridges/upr slopes....Northwest winds 5 to 12 mph.
* Mixing Height..........1700 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...46-51
Ridges/upr slopes....47-52
* Max Humidity.......
Valleys/lwr slopes...85-100 percent
Ridges/upr slopes....71-86 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 8 mph.
Ridges/upr slopes....North winds 5 to 12 mph decreasing to 5 to
9 mph after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny. Patchy fog in the morning.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....64-71
* Min Humidity.......
Valleys/lwr slopes...66-81 percent
Ridges/upr slopes....61-71 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....Northeast winds 5 to 7 mph...shifting to
the northwest 5 mph in the afternoon.
* Mixing Height..........2100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear. Patchy dense fog early in
the evening. Patchy dense fog after
midnight.
* Min Temperature.......
Valleys/lwr slopes...46-51
Ridges/upr slopes....47-52
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....71-86 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....Northwest winds 5 to 6 mph...shifting to
the east after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ202-180115-
Coastal Mendocino-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...65-73
Ridges/upr slopes....67-74
* Min Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....51-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
northwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to
the west in the afternoon.
* Mixing Height..........1300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog after midnight.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...47-53
Ridges/upr slopes....45-53
* Max Humidity.......
Valleys/lwr slopes...88-100 percent
Ridges/upr slopes....76-91 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 7 mph.
Ridges/upr slopes....North winds 5 to 7 mph...shifting to the
northeast 5 to 6 mph after midnight.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny. Patchy fog in the morning.
* Max Temperature.......
Valleys/lwr slopes...67-75
Ridges/upr slopes....68-74
* Min Humidity.......
Valleys/lwr slopes...58-73 percent
Ridges/upr slopes....52-62 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....East winds 5 mph...shifting to the
southwest 5 to 6 mph in the afternoon.
* Mixing Height..........1500 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature.......
Valleys/lwr slopes...48-53
Ridges/upr slopes....45-53
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....73-88 percent
* 20-Foot Winds...
Valleys/lwr slopes...Downslope/downvalley 1 to 3 mph.
Ridges/upr slopes....Variable 2 to 4 mph...becoming northeast 5
mph after midnight.
* Mixing Height..........100 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ203-204-180115-
Upper Smith-Lower Middle Klamath-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...35-45 percent
Ridges/upr slopes....35-44 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to
the southwest in the afternoon.
Ridges/upr slopes....North winds 5 to 8 mph.
* Mixing Height..........3200 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 50
Ridges/upr slopes....47-52
* Max Humidity.......
Valleys/lwr slopes...79-91 percent
Ridges/upr slopes....55-70 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 7 mph.
Ridges/upr slopes....Northeast winds 5 to 7 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....63-71
* Min Humidity.......
Valleys/lwr slopes...35-45 percent
Ridges/upr slopes....36-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northeast winds 5 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
Ridges/upr slopes....East winds 5 to 6 mph in the
morning...becoming upslope/upvalley 2 to 4
mph.
* Mixing Height..........3200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 50
Ridges/upr slopes....46-50
* Max Humidity.......
Valleys/lwr slopes...74-89 percent
Ridges/upr slopes....64-78 percent
* 20-Foot Winds...
Valleys/lwr slopes...South winds 5 to 7 mph.
Ridges/upr slopes....South winds 5 to 7 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ211-212-180115-
Hoopa-Van Duzen/Mad River-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...41-51 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..........2700 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...48-52
Ridges/upr slopes....44-52
* Max Humidity.......
Valleys/lwr slopes...83-97 percent
Ridges/upr slopes....65-80 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 to 7 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....66-74
* Min Humidity.......
Valleys/lwr slopes...41-51 percent
Ridges/upr slopes....41-51 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph...becoming
west 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest 5 mph in the afternoon.
* Mixing Height..........3600 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...47-52
Ridges/upr slopes....44-52
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....65-80 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....West winds 5 mph...shifting to the
northeast after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ283-180115-
Trinity-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-79
Ridges/upr slopes....61-69
* Min Humidity.......
Valleys/lwr slopes...29-34 percent
Ridges/upr slopes....32-42 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
west 5 mph in the afternoon.
Ridges/upr slopes....Northwest winds 5 to 8 mph.
* Mixing Height..........3600 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...43-48
Ridges/upr slopes....41-49
* Max Humidity.......
Valleys/lwr slopes...77-90 percent
Ridges/upr slopes....57-72 percent
* 20-Foot Winds...
Valleys/lwr slopes...Southwest winds 5 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
Ridges/upr slopes....Northwest winds 5 to 6 mph in the
evening...becoming downslope/downvalley 2
to 4 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...74-80
Ridges/upr slopes....63-71
* Min Humidity.......
Valleys/lwr slopes...32-39 percent
Ridges/upr slopes....36-46 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph.
Ridges/upr slopes....Variable 2 to 4 mph...becoming south 5 mph
in the afternoon.
* Mixing Height..........4100 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...45-48
Ridges/upr slopes....41-49
* Max Humidity.......
Valleys/lwr slopes...77-92 percent
Ridges/upr slopes....60-73 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 to 6 mph.
Ridges/upr slopes....West winds 5 to 6 mph.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ276-180115-
Interior Mendocino-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...73-81
Ridges/upr slopes....69-75
* Min Humidity.......
Valleys/lwr slopes...34-44 percent
Ridges/upr slopes....37-47 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....North winds 5 to 7 mph...shifting to the
northwest 5 to 6 mph in the afternoon.
* Mixing Height..........3300 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...47-55
Ridges/upr slopes....48-56
* Max Humidity.......
Valleys/lwr slopes...79-94 percent
Ridges/upr slopes....72-87 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 7 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.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...74-82
Ridges/upr slopes....69-77
* Min Humidity.......
Valleys/lwr slopes...36-46 percent
Ridges/upr slopes....40-50 percent
* 20-Foot Winds...
Valleys/lwr slopes...East winds 5 mph...shifting to the
southwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 6 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........3700 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...46-54
Ridges/upr slopes....47-55
* Max Humidity.......
Valleys/lwr slopes...72-87 percent
Ridges/upr slopes....65-80 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....Northwest winds 5 mph...shifting to the
northeast after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ277-180115-
W Mendocino NF/E Mendocino Unit-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...75-83
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...26-33 percent
Ridges/upr slopes....28-36 percent
* 20-Foot Winds...
Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the
west 5 to 7 mph in the afternoon.
Ridges/upr slopes....Northeast winds 5 to 9 mph...shifting to
the west 5 to 6 mph in the afternoon.
* Mixing Height..........4100 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...45-53
Ridges/upr slopes....48-55
* Max Humidity.......
Valleys/lwr slopes...78-93 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the northeast 5 mph after midnight.
Ridges/upr slopes....North winds 5 mph...shifting to the east
after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...76-83
Ridges/upr slopes....65-73
* Min Humidity.......
Valleys/lwr slopes...33-40 percent
Ridges/upr slopes....37-47 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
southwest 5 mph in the afternoon.
Ridges/upr slopes....East winds 5 mph...shifting to the
southwest in the afternoon.
* Mixing Height..........4200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...45-53
Ridges/upr slopes....47-54
* Max Humidity.......
Valleys/lwr slopes...73-88 percent
Ridges/upr slopes....55-70 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....West winds 5 mph...shifting to the north
after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
CAZ264-180115-
Lake County Portion of Lake/Napa/Sonoma RU-
1248 AM PDT Fri Oct 17 2025
.TODAY...
* Sky/Weather............Partly cloudy then becoming sunny.
* Chance Lightning.......0%.
* Max Temperature.......
Valleys/lwr slopes...around 75
Ridges/upr slopes....68-73
* Min Humidity.......
Valleys/lwr slopes...27 percent
Ridges/upr slopes....32-39 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming
northwest 5 to 6 mph in the afternoon.
Ridges/upr slopes....Northwest winds 6 to 13 mph.
* Mixing Height..........3500 ft AGL.
* Chc of Wetting Rain....0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Chance Lightning.......0%.
* Min Temperature.......
Valleys/lwr slopes...around 49
Ridges/upr slopes....54-57
* Max Humidity.......
Valleys/lwr slopes...82 percent
Ridges/upr slopes....61-76 percent
* 20-Foot Winds...
Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to
the east 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.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature.......
Valleys/lwr slopes...around 76
Ridges/upr slopes....68-74
* Min Humidity.......
Valleys/lwr slopes...31 percent
Ridges/upr slopes....37-45 percent
* 20-Foot Winds...
Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming
southeast 5 to 6 mph in the afternoon.
Ridges/upr slopes....East winds 5 to 7 mph...shifting to the
southeast 5 to 6 mph in the afternoon.
* Mixing Height..........3200 ft AGL.
* Chc of Wetting Rain....0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature.......
Valleys/lwr slopes...around 50
Ridges/upr slopes....54-59
* Max Humidity.......
Valleys/lwr slopes...73 percent
Ridges/upr slopes....52-61 percent
* 20-Foot Winds...
Valleys/lwr slopes...West winds 5 mph...shifting to the north
after midnight.
Ridges/upr slopes....West winds 5 to 6 mph...shifting to the
north after midnight.
* Mixing Height..........0 ft AGL.
* Chc of Wetting Rain....0 percent.
$$
.EXTENDED FORECAST FOR DAYS 3 THROUGH 5...
...Northwest California Coast...
.SUNDAY...Partly cloudy with chance of rain. Lows 45 to 51. Highs
60 to 67. North winds 5 mph.
.MONDAY...Partly cloudy. Lows 47 to 52. Highs 62 to 68. North
winds 5 mph.
.TUESDAY...Mostly cloudy. Lows 46 to 51. Highs 62 to 68. North
winds 5 mph.
...Northwest California Interior...
.SUNDAY...Mostly clear. Lows 45 to 53. Highs 68 to 79. Northwest
winds 5 mph.
.MONDAY...Mostly clear. Lows 46 to 54. Highs 71 to 80. Winds
generally less than 5 mph.
.TUESDAY...Partly cloudy. Lows 45 to 53. Highs 70 to 79. Winds
generally less than 5 mph.
.6 to 10 DAY OUTLOOK...Wednesday October 22 THROUGH Sunday October 26, 2025...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
$$
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