FNUS56 KEKA 182054 FWFEKA FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA NATIONAL WEATHER SERVICE Eureka CA 154 PM PDT Mon May 18 2026 .DISCUSSION...Northerly winds will gust 15 to 25 mph in the afternoons especially closer to the coast. Conditions will remain very dry with temperatures gradually increasing near 90 by mid to late week. High pressure will weaken through the weekend, allowing for cooler daytime highs. CAZ401-191330- Coastal Del Norte- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-52 Ridges/upr slopes....around 50 * Max Humidity....... Valleys/lwr slopes...66-76 percent Ridges/upr slopes....64-74 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 11 mph. Ridges/upr slopes....North winds 5 to 11 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...64-71 Ridges/upr slopes....66-72 * Min Humidity....... Valleys/lwr slopes...53-63 percent Ridges/upr slopes....49-59 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 12 mph. Ridges/upr slopes....Northwest winds 5 to 12 mph. * Mixing Height..........1600 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-54 Ridges/upr slopes....49-52 * Max Humidity....... Valleys/lwr slopes...77-87 percent Ridges/upr slopes....77-87 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 8 to 15 mph. Ridges/upr slopes....North winds 8 to 15 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...64-71 Ridges/upr slopes....65-72 * Min Humidity....... Valleys/lwr slopes...58-68 percent Ridges/upr slopes....54-64 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 9 to 16 mph. Ridges/upr slopes....North winds 9 to 16 mph. * Mixing Height..........2200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ402-191330- Interior Del Norte Including the Smith River Valley- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-50 Ridges/upr slopes....43-49 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....49-59 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 8 mph. Ridges/upr slopes....Northeast winds 6 to 13 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...71-79 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...43-53 percent Ridges/upr slopes....38-48 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 8 mph. * Mixing Height..........5000 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-53 Ridges/upr slopes....48-52 * Max Humidity....... Valleys/lwr slopes...65-77 percent Ridges/upr slopes....53-68 percent * 20-Foot Winds...Valleys/lwr slopes...Northeast winds 5 to 10 mph. Ridges/upr slopes....Northeast winds 5 to 11 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...72-80 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....43-53 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 6 mph...shifting to the north 5 to 8 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 11 mph...shifting to the north 5 to 9 mph in the afternoon. * Mixing Height..........4700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ403-191330- Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-49 Ridges/upr slopes....41-46 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....43-53 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....Northeast winds 5 to 11 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....63-71 * Min Humidity....... Valleys/lwr slopes...24-32 percent Ridges/upr slopes....30-38 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 6 mph...shifting to the northwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 9 mph...shifting to the northwest in the afternoon. * Mixing Height..........6500 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-52 Ridges/upr slopes....46-51 * Max Humidity....... Valleys/lwr slopes...60-73 percent Ridges/upr slopes....49-59 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph...shifting to the northeast 5 to 6 mph after midnight. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...80-88 Ridges/upr slopes....66-74 * Min Humidity....... Valleys/lwr slopes...28-36 percent Ridges/upr slopes....35-45 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 mph...shifting to the northwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to the northwest in the afternoon. * Mixing Height..........7000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ404-191330- Northern Coastal Humboldt- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. Patchy fog late in the night. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-46 Ridges/upr slopes....around 45 * Max Humidity....... Valleys/lwr slopes...84-98 percent Ridges/upr slopes....85 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2to 5 mph. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...62-68 Ridges/upr slopes....around 59 * Min Humidity....... Valleys/lwr slopes...56-71 percent Ridges/upr slopes....63 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph. Ridges/upr slopes....Northwest winds 5 to 10 mph. * Mixing Height..........1800 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-49 Ridges/upr slopes....around 48 * Max Humidity....... Valleys/lwr slopes...91-100 percent Ridges/upr slopes....88 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * 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...61-67 Ridges/upr slopes....around 58 * Min Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....72 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming northwest 5 to 10 mph in the afternoon. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........1800 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ405-191330- Northwestern Interior Humboldt Including the Bald Hills- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-49 Ridges/upr slopes....43-47 * Max Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....60-75 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 9 mph...shifting to the northeast 5 to 6 mph after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...68-76 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...47-57 percent Ridges/upr slopes....45-55 percent * 20-Foot Winds... Valleys/lwr slopes...North 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 northwest 5 to 8 mph in the afternoon. * Mixing Height..........2900 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-51 Ridges/upr slopes....46-51 * Max Humidity....... Valleys/lwr slopes...75-90 percent Ridges/upr slopes....66-81 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 mph in theevening...becoming downslope/downvalley 1 to 3 mph. Ridges/upr slopes....Northwest winds 5 to 8 mph in the evening...becoming downslope/downvalley 2 to 5 mph. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...68-76 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...55-65 percent Ridges/upr slopes....53-63 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 northwest 5 to 8 mph in the afternoon. * Mixing Height..........2500 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ406-191330- Eastern Interior Humboldt Including Willow Creek and Hoopa- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...45-48 Ridges/upr slopes....42-46 * Max Humidity....... Valleys/lwr slopes...62-77 percent Ridges/upr slopes....48-58 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....North winds 5 to 12 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...76-84 Ridges/upr slopes....61-69 * Min Humidity....... Valleys/lwr slopes...30-38 percent Ridges/upr slopes....32-40 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 8 mph...shifting to the northwest 5 to 10 mph in the afternoon. * Mixing Height..........4500 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-52 Ridges/upr slopes....around 50 * Max Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....53-68 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....Northwest winds 5 to 11 mph...shifting to the northeast 5 to 6 mph after midnight. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....63-71 * Min Humidity....... Valleys/lwr slopes...36-46 percent Ridges/upr slopes....39-49 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 to 7 mph...shifting to the northwest 5 to 10 mph in the afternoon. * Mixing Height..........4800 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ407-191330- Southwestern Humboldt Including the King Range and the Eel River Valley- 154 PM PDT Mon May 18 2026.TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-48 Ridges/upr slopes....42-47 * Max Humidity....... Valleys/lwr slopes...78-93 percent Ridges/upr slopes....66-81 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....North winds 5 to 12 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...73-81 Ridges/upr slopes....63-71 * Min Humidity....... Valleys/lwr slopes...38-48 percent Ridges/upr slopes....49-59 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 9 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........2400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-50 Ridges/upr slopes....46-50 * Max Humidity....... Valleys/lwr slopes...82-97 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 6 to 13 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...72-80 Ridges/upr slopes....62-70 * Min Humidity....... Valleys/lwr slopes...47-57 percent Ridges/upr slopes....60-70 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 12 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........2300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ408-191330- Southeastern Interior Humboldt Including Kneeland and Alderpoint- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-47 Ridges/upr slopes....41-46 * Max Humidity....... Valleys/lwr slopes...75-90 percent Ridges/upr slopes....62-77 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph. Ridges/upr slopes....North winds 5 to 12 mph...shifting to the northeast 5 to 6 mph after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...70-78 Ridges/upr slopes....64-70 * Min Humidity....... Valleys/lwr slopes...47-57 percent Ridges/upr slopes....50-60 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph. Ridges/upr slopes....Northwest winds 5 to 9 mph. * Mixing Height..........4100 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...47-51 Ridges/upr slopes....46-51 * Max Humidity....... Valleys/lwr slopes...77-92 percent Ridges/upr slopes....64-79 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....Northwest winds 5 to 10 mph...shifting to the northeast after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...70-78 Ridges/upr slopes....63-71 * Min Humidity....... Valleys/lwr slopes...57-67 percent Ridges/upr slopes....59-69 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming northwest 5 to 8 mph in the afternoon. Ridges/upr slopes....North winds 5 mph...shifting to the northwest 5 to 9 mph in the afternoon. * Mixing Height..........3700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ409-191330- Northwestern Trinity Including Salyer and Big Bar- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...44-47 Ridges/upr slopes....40-46 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....39-49 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....North winds 5 to 12 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....62-70 * 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 northwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 9 mph...shifting to the west in the afternoon. * Mixing Height..........7200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...48-52 Ridges/upr slopes....47-52 * Max Humidity....... Valleys/lwr slopes...62-77 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 12 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...30-38 percent Ridges/upr slopes....30-38 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....North winds 5 to 8 mph...shifting to the west in the afternoon. * Mixing Height..........8400 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ410-191330- Northeastern Trinity Including Trinity Lake- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...44-47 Ridges/upr slopes....36-44 * Max Humidity....... Valleys/lwr slopes...54-64 percent Ridges/upr slopes....38-48 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 7 mph. Ridges/upr slopes....North winds 5 to 12 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...76-84 Ridges/upr slopes....62-70 * Min Humidity....... Valleys/lwr slopes...16-21 percent Ridges/upr slopes....21-28 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........8100 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-52 Ridges/upr slopes....43-51 * Max Humidity....... Valleys/lwr slopes...53-68 percent Ridges/upr slopes....40-50 percent * 20-Foot Winds... Valleys/lwr slopes...Downslope/downvalley 2 to 4 mph...becoming northwest 5 mph after midnight. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-87 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...18-23 percent Ridges/upr slopes....25-33 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the southeast 5 to 7 mph in the afternoon. * Mixing Height..........8900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ411-191330- Eastern Trinity Including Weaverville and Hayfork- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...42-46 Ridges/upr slopes....43-46 * Max Humidity....... Valleys/lwr slopes...54-69 percent Ridges/upr slopes....45-55 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 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-85 Ridges/upr slopes....67-75 * Min Humidity....... Valleys/lwr slopes...15-20 percent Ridges/upr slopes....17-25 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....Northeast winds 5 to 6 mph. * Mixing Height..........7800 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-51 Ridges/upr slopes....49-52 * Max Humidity....... Valleys/lwr slopes...58-73 percent Ridges/upr slopes....49-59 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 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...83-89 Ridges/upr slopes....70-78 * Min Humidity....... Valleys/lwr slopes...18-24 percent Ridges/upr slopes....23-31 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....Northwest winds 5 to 7 mph. * Mixing Height..........9300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ412-191330- Southern Trinity Including Ruth Lake and the Yolla Bollys- 154 PM PDT Mon May18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-48 Ridges/upr slopes....41-46 * Max Humidity....... Valleys/lwr slopes...56-71 percent Ridges/upr slopes....53-63 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....North winds 5 to 11 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...74-81 Ridges/upr slopes....67-75 * Min Humidity....... Valleys/lwr slopes...27-35 percent Ridges/upr slopes....21-29 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to the northwest 5 to 8 mph in the afternoon. * Mixing Height..........7200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...47-53 Ridges/upr slopes....45-52 * Max Humidity....... Valleys/lwr slopes...62-74 percent Ridges/upr slopes....55-70 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....Northwest winds 5 to 10 mph...shifting to the northeast after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...76-84 Ridges/upr slopes....69-77 * Min Humidity....... Valleys/lwr slopes...33-41 percent Ridges/upr slopes....29-37 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 7 mph in the afternoon. * Mixing Height..........8800 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ413-191330- Coastal Mendocino- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...44-49 Ridges/upr slopes....44-51 * Max Humidity....... Valleys/lwr slopes...70-85 percent Ridges/upr slopes....64-79 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...71-79 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....37-45 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph. Ridges/upr slopes....Northwest winds 5 to 8 mph. * Mixing Height..........1600 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...47-52 Ridges/upr slopes....47-55 * Max Humidity....... Valleys/lwr slopes...76-91 percent Ridges/upr slopes....71-86 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Partly cloudy then becoming sunny. Patchy fog early in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...69-77 Ridges/upr slopes....71-79 * Min Humidity....... Valleys/lwr slopes...59-69 percent Ridges/upr slopes....43-53 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 5 to 7 mph. * Mixing Height..........1500 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ414-191330- Northern Interior Mendocino Including Leggett and Willits- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-48 Ridges/upr slopes....44-49 * Max Humidity....... Valleys/lwr slopes...62-77 percent Ridges/upr slopes....59-74 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 11 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-85 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...19-27 percent Ridges/upr slopes....22-30 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....Northeast winds 5 to 6 mph...shifting to the northwest 5 to 7 mph in the afternoon. * Mixing Height..........6500 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...47-52 Ridges/upr slopes....47-55 * Max Humidity....... Valleys/lwr slopes...67-82 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....North winds 5 to 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...80-87 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...27-35 percent Ridges/upr slopes....31-39 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....Northeast winds 5 mph...shifting to the west 5 to 7 mph in the afternoon. * Mixing Height..........6200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ415-191330- Northeastern Interior Mendocino Including Covelo- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...42-50 Ridges/upr slopes....45-50 * Max Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....37-47 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....67-75 * Min Humidity....... Valleys/lwr slopes...19-27 percent Ridges/upr slopes....19-27 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....Northeast winds 5 to 6 mph...shifting to the west 5 to 8 mph in the afternoon. * Mixing Height..........7700 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...48-56 Ridges/upr slopes....51-57 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....45-55 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....Northwest winds 5 to 9 mph...shifting to the northeast 5 mph after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...81-89 Ridges/upr slopes....70-78 * Min Humidity....... Valleys/lwr slopes...23-31 percent Ridges/upr slopes....24-32 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 8 mph in the afternoon. * Mixing Height..........8600 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ416-191330- Southeastern Interior Mendocino Including Ukiah and Potter Valley- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-54 Ridges/upr slopes....49-57 * Max Humidity....... Valleys/lwr slopes...49-59 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....North winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...81-89 Ridges/upr slopes....76-83 * Min Humidity....... Valleys/lwr slopes...15-20 percent Ridges/upr slopes....13-19 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to the north 5 to 8 mph in the afternoon. * Mixing Height..........7900 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-59 Ridges/upr slopes....56-64 * Max Humidity....... Valleys/lwr slopes...52-62 percent Ridges/upr slopes....40-50 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 9 mph. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...82-90 Ridges/upr slopes....77-84 * Min Humidity....... Valleys/lwr slopes...19-26 percent Ridges/upr slopes....19-27 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 mph...shifting to the southwest 5 to 8 mph in the afternoon. * Mixing Height..........7900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ417-191330- Southwestern Interior Mendocino Including Boonville- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...45-51 Ridges/upr slopes....47-53 * Max Humidity....... Valleys/lwr slopes...57-72 percent Ridges/upr slopes....55-65 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 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-87 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...24-32 percent Ridges/upr slopes....25-33 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....Variable 2 to 4 mph...becoming northwest 5 to 7 mph in the afternoon. * Mixing Height..........6500 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-57 Ridges/upr slopes....51-59 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....57-72 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 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...78-86 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...36-44 percent Ridges/upr slopes....37-45 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..........5000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ418-191330- Northern Lake Including Gravelly Valley- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature.......Valleys/lwr slopes...46-54 Ridges/upr slopes....48-54 * Max Humidity....... Valleys/lwr slopes...34-44 percent Ridges/upr slopes....23-31 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...83-87 Ridges/upr slopes....69-77 * Min Humidity....... Valleys/lwr slopes...12-17 percent Ridges/upr slopes....13-21 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 8 mph. * Mixing Height..........7900 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-58 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...43-53 percent Ridges/upr slopes....31-39 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 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...86-90 Ridges/upr slopes....72-80 * Min Humidity....... Valleys/lwr slopes...16-21 percent Ridges/upr slopes....18-26 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....Northeast winds 5 mph...shifting to the south 5 to 9 mph in the afternoon. * Mixing Height..........8700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ419-191330- Eastern Lake Including Clearlake and Middletown- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-54 Ridges/upr slopes....52-59 * Max Humidity....... Valleys/lwr slopes...31-41 percent Ridges/upr slopes....23-31 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 12 mph. * Mixing Height..........500 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...83-88 Ridges/upr slopes....76-83 * Min Humidity....... Valleys/lwr slopes...11-14 percent Ridges/upr slopes....11-16 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........8100 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-57 Ridges/upr slopes....56-63 * Max Humidity....... Valleys/lwr slopes...44-54 percent Ridges/upr slopes....30-38 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....Northwest winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...86-90 Ridges/upr slopes....79-85 * Min Humidity....... Valleys/lwr slopes...16-21 percent Ridges/upr slopes....16-22 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....North winds 5 mph...shifting to the southeast 5 to 7 mph in the afternoon. * Mixing Height..........9000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ420-191330- Southern Lake Including Cobb and Konocti- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...49-55 Ridges/upr slopes....55-59 * Max Humidity....... Valleys/lwr slopes...35-45 percent Ridges/upr slopes....25-33 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...84-87 Ridges/upr slopes....77-83 * Min Humidity....... Valleys/lwr slopes...12-15 percent Ridges/upr slopes....12-15 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 7 mph. Ridges/upr slopes....Northeast winds 5 to 8 mph. * Mixing Height..........8000 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-60 Ridges/upr slopes....60-65 * Max Humidity....... Valleys/lwr slopes...41-51 percent Ridges/upr slopes....29-37 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....Northwest winds 5 to 8 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-88 Ridges/upr slopes....77-84 * Min Humidity....... Valleys/lwr slopes...16-21 percent Ridges/upr slopes....17-22 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 mph...shifting to the south 5 to 8 mph in the afternoon. * Mixing Height..........8200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ421-191330- Western Lake Including Lakeport- 154 PM PDT Mon May 18 2026 .TONIGHT... * Sky/Weather............Clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-51 Ridges/upr slopes....48-56 * Max Humidity....... Valleys/lwr slopes...42-52 percent Ridges/upr slopes....30-40 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 9 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...81-86 Ridges/upr slopes....around 80 * Min Humidity....... Valleys/lwr slopes...13-17 percent Ridges/upr slopes....14-17 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northeast 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 mph...shifting to the north 5 to 7 mph in the afternoon. * Mixing Height..........8200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-56 Ridges/upr slopes....55-63 * Max Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....35-45 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 10 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .WEDNESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...83-88 Ridges/upr slopes....79-82 * Min Humidity....... Valleys/lwr slopes...17-23 percent Ridges/upr slopes....19-24 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 5 mph...becoming southwest 5 to 8 mph in the afternoon. * Mixing Height..........8400 ft AGL. * Chc of Wetting Rain....0 percent. $$ .EXTENDED FORECAST FOR DAYS 3 THROUGH 5... ...Northwest California Coast... .THURSDAY...Mostly clear. Patchy fog. Lows 47 to 53. Highs 63 to 72. North winds 5 mph. .FRIDAY...Partly cloudy. Patchy fog. Lows 48 to 54. Highs 61 to 69. Northwest winds 5 mph. .SATURDAY...Partly cloudy. Patchy fog. Lows 46 to 51. Highs 60 to 65. Winds generally less than 5 mph. ...Northwest California Interior... .THURSDAY...Clear. Lows 52 to 60. Highs 82 to 92. Northwest winds 5 mph. .FRIDAY...Mostly clear. Lows 53 to 61. Highs 79 to 90. West winds 5 mph. .SATURDAY...Mostly clear. Lows 49 to 57. Highs 75 to 87. Southwest winds 5 mph. .6 to 10 DAY OUTLOOK...Sunday May 24 THROUGH Thursday May 28, 2026... FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION. $$ visit us at www.weather.gov/eureka