Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
326
FNUS56 KSTO 110923
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
122 AM PST Thu Dec 11 2025
.DISCUSSION...
Dry conditions and patchy morning fog expected over the next
several days as high pressure remains in control. Below normal
temperatures in the Valley, Delta, and lower foothills expected,
with above normal temperatures over higher terrain. Generally
light and terrain driven winds are anticipated. Potential pattern
change early next week, with light precipitation and locally
breezy winds expected.
CAZ213-120100-
Eastern Portion of Shasta-Trinity NF-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........57-66.
* 24 HR Trend..........Little change.
* Min Humidity...........34-48 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........45-50 lower elevations...except 36-46
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........44-59 percent.
* 24 HR Trend..........12 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 6 to 12 mph.
* Ridges/Upr Slopes....North winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........58-66.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 4 to 10 mph.
* Mixing Height..........1100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-120100-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........56-61.
* 24 HR Trend..........Little change.
* Min Humidity...........46-51 percent lower elevations...except
34-49 percent high elevations.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........1400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........26-31 lower elevations...except 30-37
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........73-83 percent lower elevations...except
52-67 percent high elevations.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 8 mph.
* Ridges/Upr Slopes....East winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........56-61.
* Min Humidity...........31-46 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....East winds up to 8 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........1200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-120100-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Partly cloudy in the morning then
clearing. Areas of dense fog in the morning.
* Max Temperature........49-56.
* 24 HR Trend..........Little change.
* Min Humidity...........54-69 percent.
* 24 HR Trend..........11 percent down.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Areas of dense fog.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........70-85 percent.
* 24 HR Trend..........18 percent down.
* 20-Foot Winds..........North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........48-56.
* Min Humidity...........50-65 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........1000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-120100-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Partly cloudy. Areas of fog in the
morning.
* Max Temperature........46-56.
* 24 HR Trend..........Little change.
* Min Humidity...........63-78 percent.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog.
* Min Temperature........39-44.
* 24 HR Trend..........Little change.
* Max Humidity...........82-97 percent.
* 24 HR Trend..........6 percent down.
* 20-Foot Winds..........North winds up to 8 mph shifting to the
southeast up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy in the morning then
clearing.
* Max Temperature........44-54.
* Min Humidity...........55-70 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-120100-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy. Areas of dense fog in the morning.
* Max Temperature........46-51.
* 24 HR Trend..........Little change.
* Min Humidity...........75-90 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Areas of dense fog.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........92-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
early in the afternoon then becoming mostly sunny.
* Max Temperature........44-50.
* Min Humidity...........58-73 percent.
* 20-Foot Winds..........North winds up to 8 mph.
* Mixing Height..........1100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-120100-
Carquinez Strait and Delta-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy. Areas of dense fog in the morning.
* Max Temperature........46-51.
* 24 HR Trend..........Little change.
* Min Humidity...........77-92 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then becoming
mostly cloudy. Areas of dense fog through the night.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........94-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
early in the afternoon then becoming mostly sunny.
* Max Temperature........45-50.
* Min Humidity...........72-87 percent.
* 20-Foot Winds..........Northeast winds 4 to 9 mph.
* Mixing Height..........1000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-120100-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Partly cloudy. Areas of dense fog in the
morning. Patchy fog in the afternoon.
* Max Temperature........46-51.
* 24 HR Trend..........Little change.
* Min Humidity...........70-85 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph shifting to
the northwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy dense fog in the
evening. Areas of dense fog after midnight.
* Min Temperature........41-46.
* 24 HR Trend..........Little change.
* Max Humidity...........90-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy in the morning then
clearing.
* Max Temperature........45-53.
* Min Humidity...........58-73 percent.
* 20-Foot Winds..........Southeast winds up to 6 mph shifting to
the northwest in the afternoon.
* Mixing Height..........1000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-120100-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........57-65.
* 24 HR Trend..........4 degrees cooler.
* Min Humidity...........30-42 percent lower elevations...except
19-26 percent high elevations.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........48-54.
* 24 HR Trend..........Little change.
* Max Humidity...........40-52 percent lower elevations...except
28-36 percent high elevations.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 5 to 11 mph.
* Ridges/Upr Slopes....Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........58-66.
* Min Humidity...........30-45 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 8 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-120100-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Mostly sunny. At lower elevations, areas
of dense fog in the morning.
* Max Temperature........54-64 lower elevations...except 62-67
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........41-56 percent lower elevations...except
32-45 percent high elevations.
* 24 HR Trend..........13 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........44-50.
* 24 HR Trend..........Little change.
* Max Humidity...........52-67 percent lower elevations...except
38-52 percent high elevations.
* 24 HR Trend..........11 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 6 to 12 mph.
* Ridges/Upr Slopes....Northeast winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........53-63 lower elevations...except 62-67
higher elevations.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 6 to 12 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-120100-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Mostly sunny. At lower elevations, areas
of dense fog in the morning.
* Max Temperature........52-62 lower elevations...except 62-67
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........60-75 percent lower elevations...except
40-54 percent high elevations.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Northeast winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. At lower elevations, patchy
fog in the evening. Areas of dense fog after midnight.
* Min Temperature........42-48.
* 24 HR Trend..........Little change.
* Max Humidity...........71-86 percent lower elevations...except
49-64 percent high elevations.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 8 mph.
* Ridges/Upr Slopes....East winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........52-62 lower elevations...except 64-69
higher elevations.
* Min Humidity...........48-63 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....East winds up to 8 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........1100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-120100-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........54-63.
* 24 HR Trend..........4 degrees cooler.
* Min Humidity...........31-46 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 4 to 9 mph.
* Ridges/Upr Slopes....North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........35-45.
* 24 HR Trend..........Little change.
* Max Humidity...........41-56 percent...except 72-87 percent in
the high mountain valleys.
* 24 HR Trend..........7 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..........300 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........55-63.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph.
* Mixing Height..........900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-120100-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
122 AM PST Thu Dec 11 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........64-69 lower elevations...except 54-64
higher elevations.
* 24 HR Trend..........4 degrees cooler.
* Min Humidity...........25-36 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....North winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........46-53 lower elevations...except 36-46
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........33-48 percent.
* 24 HR Trend..........11 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 6 to 12 mph.
* Ridges/Upr Slopes....East winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.
.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........64-70 lower elevations...except 55-65
higher elevations.
* Min Humidity...........31-46 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........1600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.FRIDAY NIGHT...Mostly clear. Lows 37 to 47. North winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 55 to 64. North winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 33 to 43. North winds up to
10 mph.
.SUNDAY...Mostly sunny. Highs 52 to 59. Variable less than 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 36 to 46. Variable less than
5 mph.
.MONDAY...Mostly cloudy with a chance of showers. Highs 51 to 59.
Variable less than 5 mph.
.MONDAY NIGHT...Showers likely. Lows 39 to 48. Variable less than
5 mph.
...Northern Sierra and Lassen Park
.FRIDAY NIGHT...Clear. Lows 37 to 47. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 58 to 68. East winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 35 to 45. East winds up to 10 mph.
.SUNDAY...Mostly sunny. Highs 56 to 66. Variable less than 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows 36 to 46. Variable less than
5 mph.
.MONDAY...Partly cloudy with a slight chance of showers. Highs
56 to 66. Variable less than 5 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers. Lows
39 to 49. Variable less than 5 mph.
...Sierra Nevada Foothills
.FRIDAY NIGHT...Mostly clear. Lows 44 to 49. East winds up to
10 mph.
.SATURDAY...Sunny. Highs 56 to 66. East winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 43 to 48. East winds up to 10 mph.
.SUNDAY...Mostly sunny. Highs 55 to 64. Variable less than 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 43 to 48. Variable less than
5 mph.
.MONDAY...Mostly cloudy with a slight chance of showers. Highs
59 to 64. Variable less than 5 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers. Lows
46 to 51. Variable less than 5 mph.
...Central Valley and Delta
.FRIDAY NIGHT...Mostly clear. Patchy fog. Lows 40 to 45. Variable
less than 5 mph.
.SATURDAY...Partly cloudy. Highs 46 to 51. North winds up to
10 mph.
.SATURDAY NIGHT...Mostly clear. Patchy fog. Lows 39 to 44.
Variable less than 5 mph.
.SUNDAY...Mostly cloudy. Highs 44 to 50. Variable less than
5 mph.
.SUNDAY NIGHT...Mostly cloudy. Patchy fog. Lows 41 to 46.
Variable less than 5 mph.
.MONDAY...Not as cool. Mostly cloudy. Highs 54 to 59. Variable
less than 5 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of showers. Lows
45 to 50. Variable less than 5 mph.
$$