FNUS56 KSTO 180903 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... .DISCUSSION... Strong and gusty north to east winds and low humidity are expected today, with daytime humidity in the single digits to teens and wind gusts up to 40 mph, locally up to 50 mph in the Delta and in the mountains. The combination of gusty winds and low humidity will bring critical fire weather conditions for the Valley and Delta into this evening. Temperatures will then rise to well above normal mid to late this week, along with continued low humidity, which could bring elevated fire weather concerns. CAZ121-190000- W. Shasta County Above 3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........63-72. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........15-20 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Ridges/Upr Slopes....Northeast winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........9600 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........42-49. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........42-57 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Ridges/Upr Slopes....North winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........68-76. * Min Humidity...........13-25 percent. * 20-Foot Winds.......... * Ridges/Upr Slopes....Northeast winds 4 to 9 mph. * Mixing Height..........8900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ122-190000- W. Shasta County 1000-3000 ft- Including the city of Whiskeytown 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........78-83 lower elevations...except 71-77 higher elevations. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........11-16 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 6 to 12 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....Northeast winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........9300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........52-57 lower elevations...except 46-51 higher elevations. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........39-49 percent lower elevations...except 46-61 percent high elevations. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 5 to 11 mph. * Ridges/Upr Slopes....Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........83-88 lower elevations...except 76-82 higher elevations. * Min Humidity...........10-21 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 4 to 9 mph. * Ridges/Upr Slopes....North winds up to 8 mph shifting to the east in the afternoon. * Mixing Height..........8100 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ123-190000- Shasta Lake Area & 1-5 1000-3000 ft- Including the city of Shasta Lake, Sims 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........77-82 lower elevations...except 71-77 higher elevations. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........12-17 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northeast winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........10200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........51-56 lower elevations...except 44-52 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........39-54 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........83-88 lower elevations...except 76-82 higher elevations. * Min Humidity...........10-24 percent. * 20-Foot Winds..........Northeast winds 4 to 9 mph. Local gusts up to 20 mph in the morning. * Mixing Height..........9300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ124-190000- Shasta Metro- Including the city of Redding, Anderson 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........83-88. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........North winds 8 to 14 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........9800 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........53-58. * 24 HR Trend..........Little change. * Max Humidity...........39-46 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........89-94. * Min Humidity...........8-13 percent. * 20-Foot Winds..........North winds 4 to 9 mph. Local gusts up to 20 mph in the morning. * Mixing Height..........8100 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ125-190000- Shasta County Foothills 1000-3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........76-82. * 24 HR Trend..........12 degrees warmer. * Min Humidity...........7-12 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 8 to 14 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....North winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........10700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........51-56. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........28-35 percent. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 9 mph. Local gusts up to 20 mph in the evening. * Ridges/Upr Slopes....Northeast winds 4 to 9 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........81-87. * Min Humidity...........10-15 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 4 to 9 mph. * Ridges/Upr Slopes....Northwest winds 4 to 9 mph. * Mixing Height..........8300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ126-190000- E. Shasta /S. Cascades Above 3000 ft- Including the city of Shingletown 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........62-72. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........13-18 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 10 to 16 mph with local gusts up to 35 mph. * Ridges/Upr Slopes....Northeast winds 10 to 16 mph with local gusts up to 35 mph. * CWR....................0 percent. * Mixing Height..........10000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........37-46. * 24 HR Trend..........Little change. * Max Humidity...........39-54 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. * Ridges/Upr Slopes....Northeast winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........68-76. * Min Humidity...........9-22 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 4 to 10 mph. * Ridges/Upr Slopes....Northeast winds 4 to 10 mph. * Mixing Height..........8800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ127-190000- Burney Basin- Including the city of Burney 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........65-72 lower elevations...except 59-68 higher elevations. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........12-17 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 8 to 14 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....Northeast winds 8 to 14 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........10200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........35-40. * 24 HR Trend..........Little change. * Max Humidity...........49-64 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 10 mph. * Ridges/Upr Slopes....East winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........72-78 lower elevations...except 64-74 higher elevations. * Min Humidity...........11-23 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 8 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph. * Mixing Height..........8800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ128-190000- Lassen Volcanic NP- Including the city of Lassen National Park 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........51-57. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........18-25 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Breezy. East winds 16 to 28 mph with local gusts up to 40 mph becoming northeast 9 to 15 mph with local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........9300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........32-37. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........31-44 percent. * 24 HR Trend..........24 percent down. * 20-Foot Winds..........East winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........800 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........57-65. * Min Humidity...........17-28 percent. * 20-Foot Winds..........Northeast winds 4 to 9 mph. * Mixing Height..........9000 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ129-190000- Sierra (Tehama-Plumas) 1000-3000 ft- Including the city of Paradise 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........78-83 lower elevations...except 73-78 higher elevations. * 24 HR Trend..........12 degrees warmer. * Min Humidity...........8-13 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 9 to 15 mph. * Ridges/Upr Slopes....North winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........10200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-60. * 24 HR Trend..........6 degrees warmer. * Max Humidity...........19-28 percent. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 10 to 16 mph. * Ridges/Upr Slopes....Northeast winds 10 to 16 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........82-87 lower elevations...except 77-82 higher elevations. * Min Humidity...........9-22 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 8 to 14 mph. * Ridges/Upr Slopes....Northwest winds 8 to 14 mph. Local gusts up to 25 mph. * Mixing Height..........8000 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ130-190000- Sierra (Tehama-Plumas) Above 3000 ft- Including the city of Mineral, Quincy 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........62-69 lower elevations...except 56-66 higher elevations. * 24 HR Trend..........12 degrees warmer. * Min Humidity...........13-18 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 11 to 17 mph with local gusts up to 35 mph. * Ridges/Upr Slopes....Northeast winds 11 to 17 mph with local gusts up to 40 mph. * CWR....................0 percent. * Mixing Height..........8900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........37-47. * 24 HR Trend..........Little change. * Max Humidity...........33-48 percent. * 24 HR Trend..........14 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 7 to 13 mph. * Ridges/Upr Slopes....Northeast winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........69-75 lower elevations...except 62-70 higher elevations. * Min Humidity...........10-25 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. * Ridges/Upr Slopes....Northeast winds 5 to 11 mph. * Mixing Height..........9400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ131-190000- N. Motherlode 1000-3000 ft- Including the city of Auburn, Grass Valley, Colfax, Nevada City 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........76-81. * 24 HR Trend..........13 degrees warmer. * Min Humidity...........9-14 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds..........Northeast winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........9900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........52-57. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........26-35 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds..........Northeast winds 5 to 11 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........80-86. * Min Humidity...........12-21 percent. * 20-Foot Winds..........Northeast winds 4 to 9 mph with local gusts up to 20 mph shifting to the west up to 8 mph in the afternoon. * Mixing Height..........8800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ132-190000- Sierra (Yuba-Placer) 3000-5000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........64-74. * 24 HR Trend..........12 degrees warmer. * Min Humidity...........11-16 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........East winds 9 to 15 mph. Local gusts up to 40 mph decreasing to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........9200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........44-54. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........22-37 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northeast winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........71-79. * Min Humidity...........10-23 percent. * 20-Foot Winds..........East winds 6 to 12 mph with local gusts up to 25 mph shifting to the north up to 8 mph in the afternoon. * Mixing Height..........9600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ133-190000- Sierra (Sierra-Placer) Above 5000 ft- Including the city of Blue Canyon, Kingvale, Donner Peak 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........52-62. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........14-20 percent. * 24 HR Trend..........14 percent down. * 20-Foot Winds..........Breezy. East winds 17 to 29 mph with local gusts up to 60 mph decreasing to 13 to 19 mph with local gusts up to 40 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........34-44. * 24 HR Trend..........Little change. * Max Humidity...........29-44 percent. * 24 HR Trend..........14 percent down. * 20-Foot Winds..........East winds 10 to 16 mph with local gusts up to 35 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........60-70. * Min Humidity...........13-28 percent. * 20-Foot Winds..........East winds 8 to 14 mph with local gusts up to 30 mph. * Mixing Height..........9200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ134-190000- Central Motherlode 1000-3000 ft- Including the city of Cameron Park, Shingle Springs, Placerville, Cool, Jackson 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........79-84 lower elevations...except 74-79 higher elevations. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........11-16 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 5 to 11 mph. * Ridges/Upr Slopes....Northwest winds 4 to 10 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........7700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........24-33 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. * Ridges/Upr Slopes....East winds 5 to 11 mph. Local gusts up to 20 mph after midnight. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........82-87 lower elevations...except 77-82 higher elevations. * Min Humidity...........12-20 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph shifting to the west up to 7 mph in the afternoon. * Ridges/Upr Slopes....East winds up to 8 mph shifting to the west up to 7 mph in the afternoon. * Mixing Height..........6800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ135-190000- Sierra 3000-5000 ft- Including the city of Pollock Pines 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........68-73. * 24 HR Trend..........12 degrees warmer. * Min Humidity...........11-16 percent. * 24 HR Trend..........12 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 7 to 13 mph with local gusts up to 30 mph. * Ridges/Upr Slopes....East winds 5 to 11 mph with local gusts up to 25 mph shifting to the northwest 4 to 9 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........9200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........48-55 lower elevations...except 55-60 higher elevations. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........21-28 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 5 to 11 mph. * Ridges/Upr Slopes....East winds 5 to 11 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........72-77. * Min Humidity...........12-22 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 4 to 10 mph with local gusts up to 20 mph shifting to the west up to 8 mph in the afternoon. * Ridges/Upr Slopes....East winds 4 to 9 mph with local gusts up to 20 mph shifting to the west up to 8 mph in the afternoon. * Mixing Height..........8300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ136-190000- Sierra (El Dorado-Amador) Above 5000 ft- Including the city of Carson Pass 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........53-63. * 24 HR Trend..........6 degrees warmer. * Min Humidity...........14-22 percent. * 24 HR Trend..........19 percent down. * 20-Foot Winds.......... * Ridges/Upr Slopes....Windy. East winds 19 to 31 mph with local gusts up to 55 mph decreasing to 14 to 20 mph with local gusts up to 40 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7400 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........32-42. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........26-39 percent. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Ridges/Upr Slopes....East winds 11 to 17 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........58-68. * Min Humidity...........13-28 percent. * 20-Foot Winds.......... * Ridges/Upr Slopes....North winds 8 to 14 mph with local gusts up to 30 mph. * Mixing Height..........8400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ137-190000- Southern Motherlode 1000-3000 ft- Including the city of Sonora, Angels Camp 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........75-81. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........12-17 percent. * 24 HR Trend..........9 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 4 to 9 mph shifting to the west 5 to 11 mph in the afternoon. * Ridges/Upr Slopes....East winds 4 to 9 mph with local gusts up to 20 mph shifting to the west 5 to 11 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........6700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........52-57. * 24 HR Trend..........Little change. * Max Humidity...........28-36 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. * Ridges/Upr Slopes....Northeast winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........82-87 lower elevations...except 77-82 higher elevations. * Min Humidity...........10-22 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds up to 7 mph shifting to the west 5 to 10 mph in the afternoon. * Ridges/Upr Slopes....East winds up to 7 mph shifting to the west 5 to 8 mph in the afternoon. * Mixing Height..........7700 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ138-190000- Sierra (Cal-Tuo) 3000-5000 ft- Including the city of Twain Harte, Arnold 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........66-72. * 24 HR Trend..........8 degrees warmer. * Min Humidity...........15-21 percent. * 24 HR Trend..........14 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 7 to 13 mph shifting to the west 5 to 11 mph in the afternoon. Local gusts up to 30 mph. * Ridges/Upr Slopes....East winds 7 to 13 mph with local gusts up to 25 mph shifting to the west 6 to 12 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........6900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........45-53. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........24-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 8 to 14 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....Northeast winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........69-75. * Min Humidity...........13-26 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 5 to 11 mph shifting to the west 6 to 12 mph in the afternoon. * Ridges/Upr Slopes....East winds 4 to 10 mph with local gusts up to 20 mph shifting to the west 6 to 12 mph in the afternoon. * Mixing Height..........8300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ139-190000- Sierra (Cal-Tuo) Above 5000 ft- Including the city of Twain Harte, Arnold 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........52-62. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........15-23 percent. * 24 HR Trend..........19 percent down. * 20-Foot Winds.......... * Ridges/Upr Slopes....East winds 16 to 22 mph with local gusts up to 45 mph becoming northeast 7 to 13 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7400 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........31-41. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........32-47 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds.......... * Ridges/Upr Slopes....East winds 9 to 15 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........56-66. * Min Humidity...........16-31 percent. * 20-Foot Winds.......... * Ridges/Upr Slopes....East winds 6 to 12 mph shifting to the west 5 to 11 mph in the afternoon. Local gusts up to 25 mph. * Mixing Height..........8600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ140-190000- Tehama Co Coast Range Above 3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........59-68. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........11-16 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........Breezy. Northeast winds 13 to 25 mph with local gusts up to 40 mph decreasing to 10 to 16 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7100 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........45-51. * 24 HR Trend..........5 degrees warmer. * Max Humidity...........24-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........65-73. * Min Humidity...........15-23 percent. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........7500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ141-190000- W Tehama Co Foothills 1000-3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........76-81 lower elevations...except 67-72 higher elevations. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........7-12 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........North winds 11 to 17 mph. Local gusts up to 35 mph decreasing to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........8200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60 lower elevations...except 50-58 higher elevations. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........26-41 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........82-87 lower elevations...except 73-78 higher elevations. * Min Humidity...........11-19 percent. * 20-Foot Winds..........North winds 5 to 11 mph. * Mixing Height..........7400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ142-190000- N. Sac Valley in Tehama County- Including the city of Red Bluff 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........82-87. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........4-9 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........North winds 11 to 17 mph. Local gusts up to 35 mph decreasing to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........9000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-59. * 24 HR Trend..........Little change. * Max Humidity...........34-44 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........87-92. * Min Humidity...........7-13 percent. * 20-Foot Winds..........North winds 5 to 11 mph. Local gusts up to 20 mph in the morning. * Mixing Height..........7500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ143-190000- Glenn/Colusa Coast Range Above 3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........60-70. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........10-15 percent. * 24 HR Trend..........9 percent down. * 20-Foot Winds..........Breezy. Northeast winds 16 to 28 mph with local gusts up to 40 mph decreasing to 13 to 19 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........6900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........47-55. * 24 HR Trend..........4 degrees warmer. * Max Humidity...........20-27 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........North winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........66-74. * Min Humidity...........13-22 percent. * 20-Foot Winds..........Northeast winds 7 to 13 mph. * Mixing Height..........8000 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ144-190000- Central Glenn Co & Interstate 5- Including the city of Willows, Orland 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........81-86. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........North winds 14 to 20 mph. Local gusts up to 35 mph decreasing to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........Little change. * Max Humidity...........32-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 6 to 12 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * Min Humidity...........8-13 percent. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........7800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ145-190000- Eastern Glenn County- 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Northwest winds 13 to 19 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........7800 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........33-38 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........6-11 percent. * 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts up to 20 mph in the morning. * Mixing Height..........8100 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ146-190000- Butte County Below 1000 ft- Including the city of Chico, Oroville, Gridley 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........Northwest winds 9 to 15 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........8400 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-59. * 24 HR Trend..........Little change. * Max Humidity...........29-38 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........89-94. * Min Humidity...........8-17 percent. * 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts up to 20 mph in the afternoon. * Mixing Height..........7600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ147-190000- W. Glenn/Colusa Foothills 1000-3000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........76-81 lower elevations...except 69-74 higher elevations. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 12 to 18 mph with local gusts up to 35 mph. * Ridges/Upr Slopes....North winds 12 to 18 mph with local gusts up to 35 mph. * CWR....................0 percent. * Mixing Height..........7200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........53-59. * 24 HR Trend..........Little change. * Max Humidity...........22-33 percent. * 24 HR Trend..........4 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 7 to 13 mph. * Ridges/Upr Slopes....Northwest winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........81-86 lower elevations...except 74-79 higher elevations. * Min Humidity...........10-20 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 7 to 13 mph. * Ridges/Upr Slopes....North winds 7 to 13 mph. * Mixing Height..........7900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ148-190000- Central Colusa County Incl. I-5- Including the city of Williams 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........81-86. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Breezy. North winds 17 to 29 mph with local gusts up to 40 mph decreasing to 12 to 18 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........57-62. * 24 HR Trend..........Little change. * Max Humidity...........30-36 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * Min Humidity...........9-14 percent. * 20-Foot Winds..........North winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........8500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ149-190000- Eastern Colusa County- Including the city of Colusa 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........North winds 14 to 20 mph with local gusts up to 35 mph. * CWR....................0 percent. * Mixing Height..........7700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........Little change. * Max Humidity...........34-39 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........5-10 percent. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........9300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ150-190000- Sutter/Yuba counties below 1000 ft- Including the city of Yuba City, Beale AFB 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........North winds 13 to 19 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........8100 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-59. * 24 HR Trend..........Little change. * Max Humidity...........32-38 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 6 to 12 mph. Local gusts up to 25 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........7-16 percent. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * Mixing Height..........8600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ151-190000- Yolo / Solano County Hills- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........78-83. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds.......... * Ridges/Upr Slopes....Windy. North winds 18 to 30 mph decreasing to 12 to 19 mph in the afternoon. Local gusts up to 40 mph. * CWR....................0 percent. * Mixing Height..........6500 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........57-64. * 24 HR Trend..........Little change. * Max Humidity...........21-36 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Ridges/Upr Slopes....North winds 9 to 15 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........82-88. * Min Humidity...........9-16 percent. * 20-Foot Winds.......... * Ridges/Upr Slopes....North winds 8 to 14 mph. * Mixing Height..........9200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ152-190000- W. Yolo County including Capay/I-505- Including the city of Esparto, Winters 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........83-88. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........5-10 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Breezy. North winds 16 to 28 mph with local gusts up to 45 mph decreasing to 13 to 19 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........6900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........59-64. * 24 HR Trend..........Little change. * Max Humidity...........25-33 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........88-93. * Min Humidity...........6-11 percent. * 20-Foot Winds..........North winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........9400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ153-190000- C. Yolo/NE Solano including Woodland- Including the city of Woodland, Dixon 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........Breezy. North winds 17 to 28 mph with local gusts up to 45 mph decreasing to 14 to 20 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7500 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........Little change. * Max Humidity...........32-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........5-10 percent. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........9400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ154-190000- Sac Metro/W. El Dorado/Amador County- Including the city of Lincoln, Roseville, Sacramento, Elk Grove, Folsom 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........8-13 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds..........Northwest winds 12 to 18 mph with local gusts up to 35 mph. * CWR....................0 percent. * Mixing Height..........7600 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........35-40 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........89-94. * Min Humidity...........7-18 percent. * 20-Foot Winds..........Northwest winds 4 to 9 mph. * Mixing Height..........7800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ155-190000- C. Solano County including Fairfield- Including the city of Fairfield, Vacaville 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........11 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds..........Windy. North winds 19 to 31 mph with local gusts up to 45 mph decreasing to 14 to 20 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7100 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........57-62. * 24 HR Trend..........Little change. * Max Humidity...........35-41 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds..........Northwest winds 6 to 12 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........89-94. * Min Humidity...........7-14 percent. * 20-Foot Winds..........North winds 6 to 12 mph. * Mixing Height..........9700 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ156-190000- SW Solano County including Vallejo- Including the city of Vallejo, Benicia 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........7-12 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........Windy. North winds 20 to 32 mph with local gusts up to 45 mph decreasing to 13 to 19 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........5 degrees cooler. * Max Humidity...........44-59 percent. * 24 HR Trend..........17 percent up. * 20-Foot Winds..........Northwest winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........86-92. * Min Humidity...........15-30 percent. * 20-Foot Winds..........North winds 4 to 9 mph. * Mixing Height..........9200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ157-190000- Sacramento County Delta- Including the city of Walnut Grove 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........85-90. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........7-12 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Breezy. North winds 17 to 29 mph with local gusts up to 45 mph decreasing to 13 to 19 mph with local gusts up to 30 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........4 degrees cooler. * Max Humidity...........37-42 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........88-93. * Min Humidity...........9-14 percent. * 20-Foot Winds..........North winds 5 to 10 mph. * Mixing Height..........9300 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ158-190000- San Joaquin County Delta- 203 AM PDT Mon May 18 2026 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 AM PDT MONDAY... ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........7-12 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds..........North winds 13 to 19 mph. Local gusts up to 40 mph decreasing to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60. * 24 HR Trend..........4 degrees cooler. * Max Humidity...........42-47 percent. * 24 HR Trend..........15 percent up. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........9-14 percent. * 20-Foot Winds..........North winds up to 8 mph. * Mixing Height..........9000 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ159-190000- C. San Joaquin County including Stockton- Including the city of Stockton, Lodi 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........86-91. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........8-13 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northwest winds 9 to 15 mph. Local gusts up to 30 mph in the morning. * CWR....................0 percent. * Mixing Height..........7000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-59. * 24 HR Trend..........4 degrees cooler. * Max Humidity...........41-49 percent. * 24 HR Trend..........12 percent up. * 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........90-95. * Min Humidity...........8-14 percent. * 20-Foot Winds..........Northwest winds up to 7 mph. * Mixing Height..........7600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ160-190000- Tracy Triangle Below 1000 ft- Including the city of Tracy 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........84-89. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........6-11 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Breezy. Northwest winds 13 to 25 mph with local gusts up to 45 mph decreasing to 8 to 14 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........56-61. * 24 HR Trend..........Little change. * Max Humidity...........30-45 percent. * 24 HR Trend..........11 percent up. * 20-Foot Winds..........West winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........88-93. * Min Humidity...........5-10 percent. * 20-Foot Winds..........Northwest winds 5 to 10 mph. * Mixing Height..........8700 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ161-190000- NE San Joaquin Valley Below 1000 ft- 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........82-87. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........9-14 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northeast winds 5 to 11 mph shifting to the west 6 to 12 mph in the afternoon. Local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........6600 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........54-59. * 24 HR Trend..........Little change. * Max Humidity...........33-41 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds 4 to 10 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........87-92. * Min Humidity...........9-14 percent. * 20-Foot Winds..........Southwest winds up to 7 mph. * Mixing Height..........7200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ162-190000- E. Diablo Range Above 1000 ft- 203 AM PDT Mon May 18 2026 .TODAY... * Sky/Weather............Sunny. * Max Temperature........74-80. * 24 HR Trend..........10 degrees warmer. * Min Humidity...........8-13 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds.......... * CWR....................0 percent. * Mixing Height..........7000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........51-61. * 24 HR Trend..........Little change. * Max Humidity...........22-37 percent. * 24 HR Trend..........4 percent up. * 20-Foot Winds.......... * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........80-86. * Min Humidity...........8-13 percent. * 20-Foot Winds.......... * Mixing Height..........8600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ163-190000- W. Stanislaus County Above 1000 ft & I-5- 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........82-87. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........8-13 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........Northwest winds 15 to 21 mph with local gusts up to 35 mph becoming north 7 to 13 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........31-46 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........87-92. * Min Humidity...........7-12 percent. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * Mixing Height..........8700 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ164-190000- C. Stanislaus County including Modesto- Including the city of Modesto, Turlock 203 AM PDT Mon May 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING... .TODAY... * Sky/Weather............Sunny. * Max Temperature........84-89. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........9-14 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts up to 25 mph in the morning. * CWR....................0 percent. * Mixing Height..........7200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........52-57. * 24 HR Trend..........Little change. * Max Humidity...........47-52 percent. * 24 HR Trend..........16 percent up. * 20-Foot Winds..........Northwest winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......0 percent. .TUESDAY... * Sky/Weather............Sunny. * Max Temperature........89-94. * Min Humidity...........7-12 percent. * 20-Foot Winds..........Northwest winds up to 8 mph. * Mixing Height..........8400 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .TUESDAY NIGHT...Mostly clear. Lows 47 to 57. Northwest winds 5 to 15 mph. .WEDNESDAY...Sunny. Highs 74 to 84. East winds 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 50 to 60. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 77 to 87. East winds up to 10 mph. .THURSDAY NIGHT...Clear. Lows 53 to 63. West winds 5 to 15 mph. .FRIDAY...Sunny. Highs 77 to 87. Southeast winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 50 to 60. West winds up to 10 mph. ...Northern Sierra and Lassen Park .TUESDAY NIGHT...Clear. Lows 44 to 54. Northeast winds 5 to 15 mph. .WEDNESDAY...Sunny. Highs 73 to 82. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 47 to 57. Northeast winds 5 to 15 mph. .THURSDAY...Sunny. Highs 77 to 86. West winds up to 10 mph. .THURSDAY NIGHT...Clear. Lows 50 to 60. Variable less than 5 mph. .FRIDAY...Sunny. Highs 77 to 85. Southwest winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 48 to 58. Variable less than 5 mph. ...Sierra Nevada Foothills .TUESDAY NIGHT...Clear. Lows 54 to 60. Northeast winds 5 to 15 mph. .WEDNESDAY...Sunny. Highs 82 to 90. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 57 to 64. East winds 5 to 15 mph. .THURSDAY...Sunny. Highs 86 to 93. West winds up to 10 mph. .THURSDAY NIGHT...Clear. Lows 59 to 66. Variable less than 5 mph. .FRIDAY...Sunny. Highs 85 to 92. Southwest winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 57 to 63. East winds up to 10 mph. ...Central Valley and Delta .TUESDAY NIGHT...Clear. Lows 56 to 61. Northwest winds 5 to 15 mph. .WEDNESDAY...Sunny. Highs 93 to 98. Northwest winds up to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 57 to 62. Southwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 96 to 101. Northwest winds up to 10 mph. .THURSDAY NIGHT...Clear. Lows 55 to 63. Southwest winds up to 10 mph. .FRIDAY...Sunny. Highs 93 to 98. Southwest winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 52 to 59. Southwest winds 5 to 15 mph. $$