


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
709 FNUS56 KEKA 140708 FWFEKA FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA NATIONAL WEATHER SERVICE Eureka CA 1208 AM PDT Sun Sep 14 2025 .DISCUSSION...A front moving through the area early this morning will bring a chance of rain and thunderstorms to Del Norte and far northern Humboldt. Slightly cooler temperatures are expected in much of the interior today. Breezy northwest winds are possible in the interior this afternoon and evening, especially in channeled terrain and exposed ridges. Warmer and drier conditions are expected early to mid next week. Min RHs drop into the teens to mid 20`s by Monday, with moderate to poor overnight recoveries. Temperatures rise into the 90`s for most of the interior valleys. Breezy offshore winds are possible each night in the higher elevations, especially in Del Norte and Siskiyou Counties. CAZ201-150115- North Coast- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. Patchy dense fog early in the morning. Slight chance of showers in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...71-79 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...71-81 percent Ridges/upr slopes....62-77 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....Northwest winds 5 to 11 mph. * Mixing Height..........3300 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-55 Ridges/upr slopes....51-58 * Max Humidity....... Valleys/lwr slopes...79-94 percent Ridges/upr slopes....68-83 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...65-75 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to the northwest 5 to 8 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 9 mph...shifting to the northwest 5 to 8 mph in the afternoon. * Mixing Height..........3200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...53-60 Ridges/upr slopes....55-63 * Max Humidity....... Valleys/lwr slopes...66-81 percent Ridges/upr slopes....54-69 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph...shifting to the east 5 mph after midnight. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the east 5 to 7 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ202-150115- Coastal Mendocino- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...68-76 Ridges/upr slopes....70-78 * Min Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....62-72 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph. Ridges/upr slopes....Northwest winds 5 to 10 mph. * Mixing Height..........2100 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-57 Ridges/upr slopes....50-58 * Max Humidity....... Valleys/lwr slopes...80-95 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........100 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...73-81 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...63-73 percent Ridges/upr slopes....45-55 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 mph...shifting to the west 5 to 6 mph in the afternoon. * Mixing Height..........1800 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...55-60 Ridges/upr slopes....51-59 * Max Humidity....... Valleys/lwr slopes...72-87 percent Ridges/upr slopes....61-76 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........100 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ203-204-150115- Upper Smith-Lower Middle Klamath- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. Chance of showers early in the morning, then slight chance of showers late in the morning. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...74-82 Ridges/upr slopes....61-69 * Min Humidity....... Valleys/lwr slopes...42-52 percent Ridges/upr slopes....46-56 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 mph...shifting to the west 5 to 8 mph in the afternoon. Ridges/upr slopes....West winds 5 to 8 mph. * Mixing Height..........4900 ft AGL. * Chc of Wetting Rain....10 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-54 Ridges/upr slopes....51-55 * Max Humidity....... Valleys/lwr slopes...68-83 percent Ridges/upr slopes....54-69 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to the northeast 5 to 10 mph after midnight. Ridges/upr slopes....Northeast winds 5 to 11 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...86-94 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...21-29 percent Ridges/upr slopes....20-28 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 11 mph. Ridges/upr slopes....North winds 5 to 11 mph. * Mixing Height..........4300 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...55-59 Ridges/upr slopes....60-63 * Max Humidity....... Valleys/lwr slopes...49-59 percent Ridges/upr slopes....30-38 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the east 5 to 9 mph after midnight. Ridges/upr slopes....North winds 5 to 7 mph...shifting to the east 6 to 11 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ211-212-150115- Hoopa-Van Duzen/Mad River- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....66-74 * Min Humidity....... Valleys/lwr slopes...35-45 percent Ridges/upr slopes....52-62 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 12 mph. Ridges/upr slopes....Northwest winds 5 to 12 mph. * Mixing Height..........4800 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....48-56 * Max Humidity....... Valleys/lwr slopes...74-89 percent Ridges/upr slopes....66-81 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 11 mph. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the northeast 5 to 8 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...88-96 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...22-30 percent Ridges/upr slopes....21-29 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to the northwest in the afternoon. Ridges/upr slopes....East winds 5 to 8 mph...shifting to the northwest 5 to 6 mph in the afternoon. * Mixing Height..........5200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...55-61 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...56-71 percent Ridges/upr slopes....45-55 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to the east 5 to 8 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the east 5 to 9 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ283-150115- Trinity- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-83 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...26-32 percent Ridges/upr slopes....32-40 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 11 mph. Ridges/upr slopes....West winds 5 to 11 mph. * Mixing Height..........6300 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-55 Ridges/upr slopes....47-55 * Max Humidity....... Valleys/lwr slopes...62-77 percent Ridges/upr slopes....54-69 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....North 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...86-91 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...15-20 percent Ridges/upr slopes....17-25 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming east 5 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 8 mph. * Mixing Height..........5900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...54-59 Ridges/upr slopes....52-60 * Max Humidity....... Valleys/lwr slopes...46-56 percent Ridges/upr slopes....34-44 percent * 20-Foot Winds... Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming north 5 mph after midnight. Ridges/upr slopes....North winds 5 to 6 mph...shifting to the northeast 5 to 7 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ276-150115- Interior Mendocino- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....72-80 * Min Humidity....... Valleys/lwr slopes...45-55 percent Ridges/upr slopes....47-57 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 7 to 14 mph. Ridges/upr slopes....Northwest winds 7 to 14 mph. * Mixing Height..........4400 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-60 Ridges/upr slopes....54-62 * Max Humidity....... Valleys/lwr slopes...68-83 percent Ridges/upr slopes....63-78 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 6 to 13 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...85-93 Ridges/upr slopes....80-88 * Min Humidity....... Valleys/lwr slopes...27-35 percent Ridges/upr slopes....30-38 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 mph...shifting to the west 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to the west 5 to 6 mph in the afternoon. * Mixing Height..........5600 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...55-63 Ridges/upr slopes....56-64 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....52-62 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to the northeast after midnight. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the northeast 5 to 8 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ277-150115- W Mendocino NF/E Mendocino Unit- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....67-75 * Min Humidity....... Valleys/lwr slopes...29-37 percent Ridges/upr slopes....31-41 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 11 mph. Ridges/upr slopes....Northwest winds 5 to 11 mph. * Mixing Height..........5800 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-58 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...69-84 percent Ridges/upr slopes....54-64 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 11 mph...shifting to the northeast 5 to 6 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 9 mph...shifting to the northeast 5 to 7 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...88-96 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...18-24 percent Ridges/upr slopes....19-27 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to the west in the afternoon. Ridges/upr slopes....Northeast winds 5 to 7 mph...shifting to the west 5 to 6 mph in the afternoon. * Mixing Height..........5900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...52-60 Ridges/upr slopes....58-66 * Max Humidity....... Valleys/lwr slopes...54-64 percent Ridges/upr slopes....39-49 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to the northeast after midnight. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the northeast after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ264-150115- Lake County Portion of Lake/Napa/Sonoma RU- 1208 AM PDT Sun Sep 14 2025 .TODAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...around 80 Ridges/upr slopes....73-77 * Min Humidity....... Valleys/lwr slopes...34 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 9 to 12 mph. Ridges/upr slopes....Northwest winds 8 to 12 mph. * Mixing Height..........6400 ft AGL. * Chc of Wetting Rain....0 percent. .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...around 55 Ridges/upr slopes....61-66 * Max Humidity....... Valleys/lwr slopes...62 percent Ridges/upr slopes....47-56 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph...shifting to the north 5 to 7 mph after midnight. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...around 89 Ridges/upr slopes....80-85 * Min Humidity....... Valleys/lwr slopes...21 percent Ridges/upr slopes....22-27 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 6 mph...shifting to the west 5 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to the west 5 to 7 mph in the afternoon. * Mixing Height..........5900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear. * Min Temperature....... Valleys/lwr slopes...around 59 Ridges/upr slopes....66-70 * Max Humidity....... Valleys/lwr slopes...48 percent Ridges/upr slopes....34-42 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph...shifting to the northeast 6 mph after midnight. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the north 5 to 7 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. $$ .EXTENDED FORECAST FOR DAYS 3 THROUGH 5... ...Northwest California Coast... .TUESDAY...Mostly clear. Lows in the lower to mid 50s. Highs 69 to 76. North winds 5 mph. .WEDNESDAY...Partly cloudy. Lows in the lower to mid 50s. Highs 66 to 74. North winds 5 mph. .THURSDAY...Partly cloudy. Lows in the lower to mid 50s. Highs 64 to 72. North winds 5 mph. ...Northwest California Interior... .TUESDAY...Clear. Lows 56 to 64. Highs 87 to 96. Northwest winds 5 mph. .WEDNESDAY...Clear. Lows 54 to 62. Highs 84 to 95. Northwest winds 5 mph. .THURSDAY...Mostly clear. Lows 54 to 62. Highs 82 to 92. Northwest winds 5 mph. .6 to 10 DAY OUTLOOK...Friday September 19 THROUGH Tuesday September 23, 2025... FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION. $$ visit us at www.weather.gov/eureka