


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
384 FNUS56 KEKA 242019 FWFEKA FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA NATIONAL WEATHER SERVICE Eureka CA 119 PM PDT Sun Aug 24 2025 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 11 PM PDT MONDAY... .DISCUSSION...Hot and dry weather will continue though very slightly ease today. Highs will remain in the upper 90s with RH in the mid teens. Wind will remain generally gentle and terrain driven. Monsoon moisture streaming over the area will bring thunderstorms close to the area Sunday afternoon, though most storms will likely remain north and east of the area. Similar hot and dry weather will persist early this week, but the potential for thunderstorms will increase with scattered dry thunderstorms over high mountains during the afternoon . Mostly dry storms and dry fuels will combine to generate a high risk of new fire starts. CAZ201-251315- North Coast- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Partly cloudy. Patchy dense fog. * Chance Lightning.......10%. * Min Temperature....... Valleys/lwr slopes...55-63 Ridges/upr slopes....58-66 * Max Humidity....... Valleys/lwr slopes...75-90 percent Ridges/upr slopes....63-78 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. .MONDAY... * Sky/Weather............Partly cloudy then becoming sunny. Patchy dense fog in the morning. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...73-83 percent Ridges/upr slopes....61-71 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph. Ridges/upr slopes....West winds 5 to 8 mph. * Mixing Height..........2000 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. Patchy dense fog. * Min Temperature....... Valleys/lwr slopes...56-64 Ridges/upr slopes....59-67 * Max Humidity....... Valleys/lwr slopes...77-92 percent Ridges/upr slopes....67-82 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 northeast after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy. Patchy dense fog in the morning. * Max Temperature....... Valleys/lwr slopes...74-82 Ridges/upr slopes....71-79 * Min Humidity....... Valleys/lwr slopes...72-87 percent Ridges/upr slopes....66-76 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....Northeast winds 5 to 6 mph...shifting to the west in the afternoon. * Mixing Height..........2300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ202-251315- Coastal Mendocino- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Partly cloudy. Patchy dense fog. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-55 Ridges/upr slopes....53-58 * Max Humidity....... Valleys/lwr slopes...83-98 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph. Ridges/upr slopes....Northwest winds 5 to 8 mph. * Mixing Height..........100 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Partly cloudy then becoming sunny. Patchy fog early in the morning. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...69-77 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...69-84 percent Ridges/upr slopes....56-66 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 mph. Ridges/upr slopes....West winds 5 to 8 mph. * Mixing Height..........1400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. Patchy fog after midnight. * Min Temperature....... Valleys/lwr slopes...54-57 Ridges/upr slopes....54-59 * Max Humidity....... Valleys/lwr slopes...83-98 percent Ridges/upr slopes....74-89 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 mph in the evening...becoming downslope/downvalley 1 to 3 mph. Ridges/upr slopes....Variable 1 to 3 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy. Patchy fog early in the morning. Patchy dense fog late in the afternoon. * Max Temperature....... Valleys/lwr slopes...68-76 Ridges/upr slopes....72-80 * Min Humidity....... Valleys/lwr slopes...70-85 percent Ridges/upr slopes....58-68 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..........1500 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ203-204-251315- Upper Smith-Lower Middle Klamath- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Slight chance of showers and thunderstorms early in the evening. * Chance Lightning.......20% decreasing to 10% after midnight. * Min Temperature....... Valleys/lwr slopes...65-68 Ridges/upr slopes....66-70 * Max Humidity....... Valleys/lwr slopes...54-69 percent Ridges/upr slopes....41-51 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 8 mph...shifting to the east after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny then becoming partly cloudy. Slight chance of showers and thunderstorms in the afternoon. * Chance Lightning.......20%. * Max Temperature....... Valleys/lwr slopes...95-103 Ridges/upr slopes....81-89 * Min Humidity....... Valleys/lwr slopes...35-43 percent Ridges/upr slopes....30-38 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....Northeast winds 5 to 6 mph...shifting to the northwest 5 to 7 mph in the afternoon. * Mixing Height..........8400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. Slight chance of showers and thunderstorms through the night. * Min Temperature....... Valleys/lwr slopes...64-68 Ridges/upr slopes....65-69 * Max Humidity....... Valleys/lwr slopes...60-75 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to the east after midnight. Ridges/upr slopes....North winds 5 to 7 mph...shifting to the east after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming sunny then becoming partly cloudy. Slight chance of thunderstorms in the afternoon. * Max Temperature....... Valleys/lwr slopes...90-98 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...40-50 percent Ridges/upr slopes....35-45 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the west in the afternoon. Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to the west in the afternoon. * Mixing Height..........7900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ211-212-251315- Hoopa-Van Duzen/Mad River- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Patchy smoke after midnight. * Chance Lightning.......10%. * Min Temperature....... Valleys/lwr slopes...63-68 Ridges/upr slopes....61-69 * Max Humidity....... Valleys/lwr slopes...56-71 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 7 mph...shifting to the east 5 to 8 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny then becoming partly cloudy. Patchy smoke early in the morning. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...95-103 Ridges/upr slopes....84-92 * Min Humidity....... Valleys/lwr slopes...24-32 percent Ridges/upr slopes....28-36 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 mph...shifting to the west 5 to 8 mph in the afternoon. Ridges/upr slopes....East winds 5 to 8 mph...shifting to the west 5 to 7 mph in the afternoon. * Mixing Height..........6900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. * Min Temperature....... Valleys/lwr slopes...64-68 Ridges/upr slopes....61-69 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....55-65 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the east 5 to 7 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny then becoming partly cloudy. Slight chance of thunderstorms late in the afternoon. * Max Temperature....... Valleys/lwr slopes...90-98 Ridges/upr slopes....79-87 * Min Humidity....... Valleys/lwr slopes...33-43 percent Ridges/upr slopes....36-46 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 to 6 mph...shifting to the west in the afternoon. * Mixing Height..........6400 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ283-251315- Trinity- 119 PM PDT Sun Aug 24 2025 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 11 PM PDT MONDAY... .TONIGHT... * Sky/Weather............Mostly clear. Slight chance of showers and thunderstorms in the evening. Patchy smoke after midnight. * Chance Lightning.......20% decreasing to 10% after midnight. * Min Temperature....... Valleys/lwr slopes...64-68 Ridges/upr slopes....60-68 * Max Humidity....... Valleys/lwr slopes...53-63 percent Ridges/upr slopes....43-53 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 to 7 mph. Ridges/upr slopes....East winds 5 to 8 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny then becoming partly cloudy then becoming mostly cloudy. Slight chance of showers and thunderstorms in the afternoon. * Chance Lightning.......20%. * Max Temperature....... Valleys/lwr slopes...96-102 Ridges/upr slopes....81-89 * Min Humidity....... Valleys/lwr slopes...19-24 percent Ridges/upr slopes....28-36 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....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....10 percent. .MONDAY NIGHT... * Sky/Weather............Mostly cloudy then becoming partly cloudy. Chance of showers and slight chance of thunderstorms in the evening. Chance of rain in the late evening and overnight. * Min Temperature....... Valleys/lwr slopes...61-66 Ridges/upr slopes....58-66 * Max Humidity....... Valleys/lwr slopes...61-75 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 8 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....20 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy. Slight chance of thunderstorms in the afternoon. * Max Temperature....... Valleys/lwr slopes...89-95 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...27-35 percent Ridges/upr slopes....33-43 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming south 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to the southwest in the afternoon. * Mixing Height..........8500 ft AGL. * Chc of Wetting Rain....30 percent. $$ CAZ276-251315- Interior Mendocino- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Patchy smoke late in the night. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...58-66 Ridges/upr slopes....59-67 * 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 in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the northeast 5 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. Patchy smoke until late afternoon. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...90-98 Ridges/upr slopes....84-92 * Min Humidity....... Valleys/lwr slopes...33-41 percent Ridges/upr slopes....37-45 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to the southwest 5 to 8 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..........4300 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...59-67 Ridges/upr slopes....60-68 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....60-75 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 6 mph...shifting to the northeast after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny then becoming partly cloudy. * Max Temperature....... Valleys/lwr slopes...86-94 Ridges/upr slopes....80-88 * Min Humidity....... Valleys/lwr slopes...39-49 percent Ridges/upr slopes....43-53 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....East winds 5 mph...shifting to the southwest 5 to 6 mph in the afternoon. * Mixing Height..........4600 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ277-251315- W Mendocino NF/E Mendocino Unit- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Patchy smoke in the late evening and overnight. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...60-68 Ridges/upr slopes....65-73 * Max Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....34-44 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph...shifting to the east 5 mph after midnight. Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to the east 5 to 9 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Sunny. Patchy smoke. * Chance Lightning.......10%. * Max Temperature....... Valleys/lwr slopes...95-103 Ridges/upr slopes....84-92 * Min Humidity....... Valleys/lwr slopes...20-26 percent Ridges/upr slopes....22-30 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 8 mph...shifting to the southwest in the afternoon. * Mixing Height..........8900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...61-69 Ridges/upr slopes....64-71 * Max Humidity....... Valleys/lwr slopes...60-75 percent Ridges/upr slopes....44-54 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 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. .TUESDAY... * Sky/Weather............Sunny then becoming partly cloudy. Slight chance of thunderstorms late in the afternoon. * Max Temperature....... Valleys/lwr slopes...90-97 Ridges/upr slopes....78-86 * Min Humidity....... Valleys/lwr slopes...28-35 percent Ridges/upr slopes....31-41 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....Northeast winds 5 mph...shifting to the southwest 5 to 7 mph in the afternoon. * Mixing Height..........7600 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ264-251315- Lake County Portion of Lake/Napa/Sonoma RU- 119 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Patchy smoke through the night. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...around 65 Ridges/upr slopes....70-74 * Max Humidity....... Valleys/lwr slopes...46 percent Ridges/upr slopes....35-45 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph. 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. .MONDAY... * Sky/Weather............Sunny. Patchy smoke through the day. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...around 95 Ridges/upr slopes....87-92 * Min Humidity....... Valleys/lwr slopes...19 percent Ridges/upr slopes....24-30 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the south 6 mph in the afternoon. Ridges/upr slopes....East winds 5 to 7 mph...shifting to the south 5 to 8 mph in the afternoon. * Mixing Height..........7200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. Patchy smoke early in the evening. * Min Temperature....... Valleys/lwr slopes...around 65 Ridges/upr slopes....71-74 * Max Humidity....... Valleys/lwr slopes...56 percent Ridges/upr slopes....42-52 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 6 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....Southwest winds 5 to 8 mph...shifting to the northeast 5 to 6 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny then becoming partly cloudy. * Max Temperature....... Valleys/lwr slopes...around 90 Ridges/upr slopes....83-88 * Min Humidity....... Valleys/lwr slopes...29 percent Ridges/upr slopes....31-40 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the south 6 mph in the afternoon. Ridges/upr slopes....East winds 5 to 6 mph...shifting to the south 5 to 8 mph in the afternoon. * Mixing Height..........6900 ft AGL. * Chc of Wetting Rain....0 percent. $$ .EXTENDED FORECAST FOR DAYS 3 THROUGH 5... ...Northwest California Coast... .WEDNESDAY...Mostly cloudy. Patchy fog. Lows in the 50s. Highs 64 to 70. Winds generally less than 5 mph. .THURSDAY...Mostly cloudy. Patchy fog. Lows in the lower to mid 50s. Highs 64 to 71. Winds generally less than 5 mph. .FRIDAY...Mostly cloudy. Patchy fog. Lows in the lower to mid 50s. Highs 64 to 71. Winds generally less than 5 mph. ...Northwest California Interior... .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 57 to 65. Highs 82 to 93. Southwest winds 5 mph. .THURSDAY...Mostly clear. Lows 54 to 62. Highs 82 to 92. West winds 5 mph. .FRIDAY...Partly cloudy. Lows 53 to 61. Highs 79 to 89. West winds 5 mph. .6 to 10 DAY OUTLOOK...Saturday August 30 THROUGH Wednesday September 3, 2025... FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION. $$ visit us at www.weather.gov/eureka