470
FNUS56 KSTO 200923
FWFSTO

Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
122 AM PST Thu Nov 20 2025


.DISCUSSION...
A weather system will continue to bring light rain and mountain
snow to the region until this evening, heaviest through this
morning. Drier weather returns Friday and into next week with
periods of locally breezy north to east winds at times.


CAZ213-210100-
Eastern Portion of Shasta-Trinity NF-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy with a chance of showers in
  the morning, then mostly sunny in the afternoon.
* Max Temperature........54-59 lower elevations...except 44-52
  higher elevations.
*   24 HR Trend..........4 degrees warmer.
* Min Humidity...........59-69 percent.
*   24 HR Trend..........29 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds up to 7 mph.
*   Ridges/Upr Slopes....North winds up to 7 mph.
* CWR....................20 percent.
* Mixing Height..........3400 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........40-45 lower elevations...except 29-39
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........74-89 percent.
*   24 HR Trend..........21 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..........700 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........60-65 lower elevations...except 49-57
  higher elevations.
* Min Humidity...........52-67 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 5 to 11 mph.
*   Ridges/Upr Slopes....Northeast winds 5 to 11 mph.
* Mixing Height..........2800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ214-210100-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
  partly cloudy. At lower elevations, a chance of showers in the
  morning. At higher elevations, a chance of showers and snow
  showers in the morning.
* Max Temperature........46-51 lower elevations...except 39-44
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........62-71 percent.
*   24 HR Trend..........24 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph.
*   Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................20 percent.
* Mixing Height..........3400 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........24-29.
*   24 HR Trend..........9 degrees cooler.
* Max Humidity...........95-100 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds 4 to 9 mph.
*   Ridges/Upr Slopes....East winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........51-56 lower elevations...except 46-51
  higher elevations.
* Min Humidity...........59-74 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 4 to 9 mph.
*   Ridges/Upr Slopes....Northeast winds 4 to 9 mph.
* Mixing Height..........3200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ215-210100-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy with a chance of showers in
  the morning, then mostly sunny in the afternoon.
* Max Temperature........57-62.
*   24 HR Trend..........Little change.
* Min Humidity...........62-77 percent.
*   24 HR Trend..........22 percent down.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................10 percent.
* Mixing Height..........2600 ft AGL.
* Chance of thunder......3 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........42-47.
*   24 HR Trend..........Little change.
* Max Humidity...........72-87 percent.
*   24 HR Trend..........24 percent down.
* 20-Foot Winds..........Northwest winds 6 to 12 mph with local
  gusts up to 20 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........63-68.
* Min Humidity...........47-62 percent.
* 20-Foot Winds..........North winds 7 to 13 mph with local gusts
  up to 25 mph.
* Mixing Height..........2300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ216-210100-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. A chance of showers in the
  morning.
* Max Temperature........55-60.
*   24 HR Trend..........Little change.
* Min Humidity...........73-88 percent.
*   24 HR Trend..........9 percent down.
* 20-Foot Winds..........Northeast winds up to 8 mph.
* CWR....................20 percent.
* Mixing Height..........2000 ft AGL.
* Chance of thunder......7 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........42-47.
*   24 HR Trend..........4 degrees cooler.
* Max Humidity...........82-97 percent.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........62-67.
* Min Humidity...........52-67 percent.
* 20-Foot Winds..........North winds 7 to 13 mph with local gusts
  up to 25 mph.
* Mixing Height..........1700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ217-210100-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. A chance of showers in the
  morning, then a slight chance of showers in the afternoon.
* Max Temperature........54-59.
*   24 HR Trend..........Little change.
* Min Humidity...........80-95 percent.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........East winds up to 7 mph shifting to the
  north up to 8 mph in the afternoon.
* CWR....................30 percent.
* Mixing Height..........1800 ft AGL.
* Chance of thunder......7 percent.

.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........42-47.
*   24 HR Trend..........6 degrees cooler.
* Max Humidity...........88-100 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........North winds 6 to 12 mph with local gusts
  up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........58-63.
* Min Humidity...........63-78 percent.
* 20-Foot Winds..........North winds 6 to 12 mph with local gusts
  up to 25 mph.
* Mixing Height..........1800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ218-210100-
Carquinez Strait and Delta-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. Showers likely in the
  morning, then a slight chance of showers in the afternoon.
* Max Temperature........56-61.
*   24 HR Trend..........Little change.
* Min Humidity...........78-93 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........North winds up to 8 mph.
* CWR....................20 percent.
* Mixing Height..........2100 ft AGL.
* Chance of thunder......8 percent.

.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........42-47.
*   24 HR Trend..........6 degrees cooler.
* Max Humidity...........89-99 percent.
*   24 HR Trend..........5 percent down.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
  up to 20 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........59-64.
* Min Humidity...........62-77 percent.
* 20-Foot Winds..........North winds 5 to 11 mph. Local gusts up to
  20 mph in the morning.
* Mixing Height..........1900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ219-210100-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. A chance of showers in the
  morning, then a slight chance of showers in the afternoon.
* Max Temperature........52-57.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........85-100 percent.
*   24 HR Trend..........14 percent up.
* 20-Foot Winds..........Southeast winds up to 7 mph shifting to
  the northwest up to 8 mph in the afternoon.
* CWR....................40 percent.
* Mixing Height..........1600 ft AGL.
* Chance of thunder......5 percent.

.TONIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature........43-48.
*   24 HR Trend..........4 degrees cooler.
* Max Humidity...........95-100 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing.
* Max Temperature........55-60.
* Min Humidity...........72-87 percent.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* Mixing Height..........1800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ263-279-210100-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Partly cloudy with a slight chance of
  showers in the morning, then mostly sunny in the afternoon.
* Max Temperature........54-59 lower elevations...except 39-48
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........61-70 percent.
*   24 HR Trend..........25 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 4 to 10 mph.
*   Ridges/Upr Slopes....North winds 4 to 10 mph.
* CWR....................10 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........43-48 lower elevations...except 32-40
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........64-74 percent.
*   24 HR Trend..........26 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northwest winds 8 to 14 mph.
*   Ridges/Upr Slopes....Northwest winds 9 to 15 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........61-66 lower elevations...except 47-55
  higher elevations.
* Min Humidity...........46-61 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 6 to 12 mph.
*   Ridges/Upr Slopes....North winds 6 to 12 mph with local gusts up
    to 25 mph.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ266-210100-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
122 AM PST Thu Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
  partly cloudy. At higher elevations, a slight chance of showers
  in the afternoon.
* Max Temperature........47-54.
*   24 HR Trend..........Little change.
* Min Humidity...........68-81 percent.
*   24 HR Trend..........17 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds up to 8 mph shifting to the
    northwest up to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Southeast winds up to 7 mph in the morning
    becoming variable up to 5 mph.
* CWR....................30 percent.
* Mixing Height..........2000 ft AGL.
* Chance of thunder......7 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........39-44.
*   24 HR Trend..........Little change.
* Max Humidity...........74-85 percent.
*   24 HR Trend..........22 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..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........57-63.
* Min Humidity...........51-66 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 7 to 13 mph.
*   Ridges/Upr Slopes....North winds 6 to 12 mph.
* Mixing Height..........2500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ220-267-210100-
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 Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. Showers likely in the
  morning, then a chance of showers in the afternoon.
* Max Temperature........46-51.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........93-100 percent.
*   24 HR Trend..........6 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph.
*   Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................50 percent.
* Mixing Height..........1600 ft AGL.
* Chance of thunder......5 percent.

.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........37-42.
*   24 HR Trend..........4 degrees cooler.
* Max Humidity...........95-100 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds up to 8 mph.
*   Ridges/Upr Slopes....Northeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........54-60.
* Min Humidity...........64-79 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds up to 7 mph in the morning
    becoming upslope up to 5 mph.
*   Ridges/Upr Slopes....East winds 5 to 11 mph in the morning
    becoming variable up to 5 mph.
* Mixing Height..........2000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ268-210100-
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 Nov 20 2025

.TODAY...
* Sky/Weather............Mostly cloudy. At lower elevations, a
  chance of showers and snow showers in the morning, then a slight
  chance of showers in the afternoon. At higher elevations, a
  chance of snow showers and showers in the morning, then a slight
  chance of showers and snow showers in the afternoon.
* Max Temperature........40-45 lower elevations...except 34-40
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........71-86 percent.
*   24 HR Trend..........13 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds up to 8 mph in the morning
    becoming upslope up to 5 mph.
*   Ridges/Upr Slopes....West winds 4 to 9 mph shifting to the north
    in the afternoon.
* CWR....................30 percent.
* Mixing Height..........1900 ft AGL.
* Chance of thunder......6 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........25-35.
*   24 HR Trend..........Little change.
* Max Humidity...........82-97 percent...except 95-100 percent in
  the high mountain valleys.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 10 to 16 mph.
*   Ridges/Upr Slopes....Northeast winds 10 to 16 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Sunny.
* Max Temperature........47-53 lower elevations...except 40-48
  higher elevations.
* Min Humidity...........61-76 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 7 to 13 mph.
*   Ridges/Upr Slopes....Northeast winds 7 to 13 mph with local gusts
    up to 25 mph.
* Mixing Height..........2300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ221-269-210100-
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 Nov 20 2025

.TODAY...
* Sky/Weather............At lower elevations, showers in the
  morning, then a chance of showers in the afternoon. At higher
  elevations, snow showers and showers. Snow level 6000 feet.
* Max Temperature........42-47 lower elevations...except 31-40
  higher elevations.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........79-94 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...West winds up to 7 mph.
*   Ridges/Upr Slopes....Southwest winds up to 8 mph shifting to the
    west up to 7 mph in the afternoon.
* CWR....................60 percent.
* Mixing Height..........1400 ft AGL.
* Chance of thunder......5 percent.

.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
  partly cloudy. At higher elevations, a slight chance of snow
  showers.
* Min Temperature........34-39 lower elevations...except 24-32
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........85-100 percent.
*   24 HR Trend..........7 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 35 mph.
* CWR....................10 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny. At higher elevations, a
  slight chance of snow showers early in the morning.
* Max Temperature........53-58 lower elevations...except 36-46
  higher elevations.
* Min Humidity...........64-79 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 8 to 14 mph.
*   Ridges/Upr Slopes....Northeast winds 8 to 14 mph with local gusts
    up to 35 mph.
* Mixing Height..........2300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$


.Extended...

...Shasta County Mountains and Coastal Range
.FRIDAY NIGHT...Clear. Lows 30 to 40. North winds 5 to 15 mph.
.SATURDAY...Sunny. Highs 53 to 61. Northeast winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 32 to 42. North winds up to 10 mph.
.SUNDAY...Mostly sunny. Highs 51 to 59. Variable less than 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 31 to 41. Variable less than
5 mph.
.MONDAY...Partly cloudy. Highs 49 to 57. Variable less than
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows 29 to 39. North winds up to
10 mph.

...Northern Sierra and Lassen Park
.FRIDAY NIGHT...Clear. Lows 30 to 40. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 53 to 61. Northeast winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 31 to 41. East winds 5 to 15 mph.
.SUNDAY...Sunny. Highs 53 to 60. Variable less than 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows 32 to 42. Variable less than
5 mph.
.MONDAY...Mostly sunny. Highs 52 to 60. Variable less than 5 mph.
.MONDAY NIGHT...Mostly clear. Lows 30 to 40. Variable less than
5 mph.

...Sierra Nevada Foothills
.FRIDAY NIGHT...Clear. Lows 40 to 45. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 57 to 63. East winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 40 to 45. East winds up to 10 mph.
.SUNDAY...Sunny. Highs 57 to 62. Variable less than 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows 40 to 45. Variable less than
5 mph.
.MONDAY...Mostly sunny. Highs 57 to 62. Variable less than 5 mph.
.MONDAY NIGHT...Mostly clear. Lows 39 to 44. Variable less than
5 mph.

...Central Valley and Delta
.FRIDAY NIGHT...Mostly clear. Lows 40 to 45. Northeast winds up
to 10 mph.
.SATURDAY...Mostly sunny. Highs 59 to 64. North winds up to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 41 to 46. Variable less than
5 mph.
.SUNDAY...Mostly sunny. Highs 60 to 65. Variable less than 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows 42 to 47. Variable less than
5 mph.
.MONDAY...Partly cloudy. Highs 60 to 65. Variable less than
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows 42 to 47. Variable less than
5 mph.

$$