


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
144 FNUS56 KSTO 200851 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 151 AM PDT Sun Apr 20 2025 .Discussion... Dry and warm weather persists today through the middle of this week. Diurnally driven onshore winds primarily expected, although a brief period of northerly winds anticipated late today into Monday. Cooler, breezy, and more unsettled weather returns late in the week. && CAZ213-210015- Eastern Portion of Shasta-Trinity NF- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........74-79 lower elevations...except 64-73 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........31-42 percent. * 24 HR Trend..........12 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south 4 to 9 mph in the afternoon. * Ridges/Upr Slopes....North winds up to 8 mph shifting to the southwest 5 to 11 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...5 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........46-51 lower elevations...except 35-44 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........56-71 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 6 to 12 mph. Local gusts up to 20 mph after midnight. * Ridges/Upr Slopes....North winds 6 to 12 mph. * CWR....................0 percent. * CHANCE OF THUNDER...4 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........77-82 lower elevations...except 65-75 higher elevations. * Min Humidity...........15-27 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 6 to 12 mph. * Ridges/Upr Slopes....Northeast winds 6 to 12 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ214-210015- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........68-73 lower elevations...except 62-67 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........29-34 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 5 to 11 mph in the afternoon. * Ridges/Upr Slopes....North winds up to 7 mph shifting to the west 7 to 13 mph with local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...6 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........33-40. * 24 HR Trend..........Little change. * Max Humidity...........78-87 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 4 to 9 mph with local gusts up to 20 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....Northwest winds 6 to 12 mph shifting to the northeast up to 7 mph after midnight. * CWR....................0 percent. * CHANCE OF THUNDER...8 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........69-74 lower elevations...except 62-68 higher elevations. * Min Humidity...........14-26 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 8 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ215-210015- Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........78-83. * 24 HR Trend..........Little change. * Min Humidity...........29-34 percent. * 24 HR Trend..........6 percent up. * 20-Foot Winds..........Northeast winds up to 6 mph shifting to the south up to 8 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...2 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........51-56. * 24 HR Trend..........Little change. * Max Humidity...........54-64 percent. * 24 HR Trend..........17 percent down. * 20-Foot Winds..........Northwest winds 4 to 9 mph. * CWR....................0 percent. * CHANCE OF THUNDER...2 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........80-86. * Min Humidity...........16-21 percent. * 20-Foot Winds..........North winds 6 to 12 mph with local gusts up to 25 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ216-210015- Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........78-83. * 24 HR Trend..........Little change. * Min Humidity...........31-36 percent. * 24 HR Trend..........6 percent up. * 20-Foot Winds..........Southeast winds 4 to 9 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........51-56. * 24 HR Trend..........Little change. * Max Humidity...........67-82 percent. * 24 HR Trend..........14 percent down. * 20-Foot Winds..........Southeast winds 5 to 11 mph shifting to the north after midnight. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........80-85. * Min Humidity...........18-33 percent. * 20-Foot Winds..........North winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ217-210015- Southern Sacramento Valley in Yolo- Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........77-82. * 24 HR Trend..........Little change. * Min Humidity...........32-38 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 4 to 9 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........48-53. * 24 HR Trend..........Little change. * Max Humidity...........77-92 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds..........South winds 5 to 11 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........80-85. * Min Humidity...........21-36 percent. * 20-Foot Winds..........North winds 7 to 13 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ218-210015- Carquinez Strait and Delta- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Partly cloudy in the morning then clearing. * Max Temperature........75-80. * 24 HR Trend..........Little change. * Min Humidity...........33-44 percent. * 24 HR Trend..........12 percent down. * 20-Foot Winds..........West winds 4 to 10 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........47-52. * 24 HR Trend..........Little change. * Max Humidity...........85-92 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........West winds 5 to 11 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........80-85. * Min Humidity...........30-45 percent. * 20-Foot Winds..........Northwest winds 4 to 10 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ219-210015- Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........77-82. * 24 HR Trend..........Little change. * Min Humidity...........31-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds up to 8 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........48-53. * 24 HR Trend..........Little change. * Max Humidity...........70-85 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northwest winds 4 to 9 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........78-84. * Min Humidity...........24-37 percent. * 20-Foot Winds..........Northwest winds 4 to 9 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ263-279-210015- Southeast Edge Shasta-Trinity NF and Western Portions of Tehama- Glenn Unit-Eastern Mendocino NF- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........75-80 lower elevations...except 60-70 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........31-36 percent lower elevations...except 34-47 percent high elevations. * 24 HR Trend..........14 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast 4 to 9 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 6 to 12 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........49-54 lower elevations...except 40-48 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........49-62 percent. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 8 to 14 mph. * Ridges/Upr Slopes....Northwest winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........77-82 lower elevations...except 61-71 higher elevations. * Min Humidity...........21-36 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 7 to 13 mph. * Ridges/Upr Slopes....North winds 7 to 13 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ266-210015- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........68-77. * 24 HR Trend..........Little change. * Min Humidity...........32-40 percent. * 24 HR Trend..........15 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds 4 to 9 mph. * Ridges/Upr Slopes....Southwest winds 4 to 9 mph. * CWR....................0 percent. * CHANCE OF THUNDER...4 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........48-56. * 24 HR Trend..........Little change. * Max Humidity...........59-68 percent. * 24 HR Trend..........7 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....East winds up to 8 mph. * CWR....................0 percent. * CHANCE OF THUNDER...4 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........75-80 lower elevations...except 70-76 higher elevations. * Min Humidity...........21-36 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 4 to 9 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph shifting to the northwest in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ220-267-210015- Southern Motherlode From 1000 to 3000 Ft. Includes portions of Toulumne-Calaveras Unit- Northern Motherlode From 1000 to 3000 Ft. Includes portions of Nevada-Yuba-Placer-Amador and Eldorado Units- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........68-77. * 24 HR Trend..........Little change. * Min Humidity...........37-42 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up to 8 mph in the afternoon. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up to 8 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........47-53. * 24 HR Trend..........Little change. * Max Humidity...........67-75 percent. * 24 HR Trend..........6 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 7 mph. * Ridges/Upr Slopes....Northeast winds up to 7 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........71-80. * Min Humidity...........30-42 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up to 8 mph in the afternoon. * Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the west up to 8 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ268-210015- Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Beckworth Peak)- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........62-69 lower elevations...except 54-63 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........31-46 percent. * 24 HR Trend..........16 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds 7 to 13 mph. * Ridges/Upr Slopes....Southwest winds 7 to 13 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...5 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........36-45 lower elevations...except 30-40 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........70-85 percent...except 86-98 percent in the high mountain valleys. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds 5 to 11 mph shifting to the northeast up to 8 mph after midnight. * Ridges/Upr Slopes....West winds 8 to 14 mph shifting to the north 4 to 10 mph after midnight. * CWR....................0 percent. * CHANCE OF THUNDER...5 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........64-70 lower elevations...except 57-65 higher elevations. * Min Humidity...........21-36 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 5 to 11 mph. * Ridges/Upr Slopes....North winds 5 to 11 mph. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ CAZ221-269-210015- Stanislaus NF West of the Sierra Crest- Northern Sierra Including the Tahoe and Eldorado NF/S West of the Sierra Crest- 151 AM PDT Sun Apr 20 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........65-70 lower elevations...except 53-63 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........36-45 percent. * 24 HR Trend..........19 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds up to 7 mph shifting to the west 5 to 11 mph in the afternoon. * Ridges/Upr Slopes....Southeast winds 4 to 9 mph shifting to the southwest 10 to 16 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...1 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........43-49 lower elevations...except 29-39 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........68-83 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....East winds up to 8 mph with local gusts up to 25 mph. * CWR....................0 percent. * CHANCE OF THUNDER...1 percent. .MONDAY... * Sky/Weather............Sunny. * Max Temperature........66-72 lower elevations...except 55-65 higher elevations. * Min Humidity...........23-38 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 7 mph shifting to the west 4 to 9 mph in the afternoon. * Ridges/Upr Slopes....East winds up to 8 mph shifting to the west 4 to 10 mph in the afternoon. * CWR....................0 percent. * CHANCE OF THUNDER...0 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .MONDAY NIGHT...Clear. Lows 39 to 49. Northwest winds up to 13 mph. .TUESDAY...Sunny. Highs 63 to 73. Northwest winds up to 13 mph. .TUESDAY NIGHT...Clear. Lows 38 to 48. Northwest winds 5 to 15 mph. .WEDNESDAY...Sunny. Highs 63 to 73. Northeast winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 40 to 49. Northwest winds up to 10 mph. .THURSDAY...Partly cloudy. Highs 59 to 67. South winds up to 13 mph. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows 37 to 44. Southwest winds up to 13 mph. ...Northern Sierra and Lassen Park .MONDAY NIGHT...Clear. Lows 39 to 49. Northeast winds up to 10 mph. .TUESDAY...Sunny. Highs 64 to 72. Southwest winds up to 13 mph. .TUESDAY NIGHT...Clear. Lows 39 to 48. East winds up to 13 mph. .WEDNESDAY...Sunny. Highs 63 to 71. South winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 40 to 47. Variable less than 5 mph. .THURSDAY...Partly cloudy. Highs 60 to 68. South winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows 37 to 44. Southeast winds up to 10 mph. ...Sierra Nevada Foothills .MONDAY NIGHT...Clear. Lows 49 to 54. Northeast winds up to 10 mph. .TUESDAY...Sunny. Highs 72 to 78. Southwest winds up to 10 mph. .TUESDAY NIGHT...Clear. Lows 48 to 53. East winds up to 10 mph. .WEDNESDAY...Sunny. Highs 70 to 76. Southwest winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 46 to 51. Variable less than 5 mph. .THURSDAY...Partly cloudy. Highs 66 to 72. South winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows 43 to 48. Southeast winds up to 10 mph. ...Central Valley and Delta .MONDAY NIGHT...Clear. Lows 51 to 56. Northwest winds up to 10 mph. .TUESDAY...Mostly sunny. Highs 81 to 86. Northwest winds up to 10 mph. .TUESDAY NIGHT...Clear. Lows 48 to 53. Southwest winds up to 13 mph. .WEDNESDAY...Sunny. Highs 78 to 83. Northwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 48 to 53. Southwest winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs 74 to 79. South winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows 46 to 51. South winds 5 to 15 mph. $$