416
FNUS56 KSTO 110731
FWFSTO

Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Sat Oct 11 2025

NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY.



.DISCUSSION...
A weak system will bring scattered showers north of I-80 today
through Saturday, with a 10-20% chance of isolated mountain
thunderstorms. Drier weather expected on Sunday, before a colder
system brings widespread rain, mountain snow, breezy south
winds, and additional thunderstorm chances Monday through Wednesday.
Highest precipitation amounts expected south of Highway 50, with
snow levels above 6500 feet.


CAZ213-120000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny in the morning then becoming
  partly cloudy. At higher elevations, a slight chance of showers
  in the afternoon.
* Max Temperature........62-67 lower elevations...except 50-60
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........46-59 percent.
*   24 HR Trend..........30 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph.
*   Ridges/Upr Slopes....West winds up to 7 mph in the morning
    becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........41-47 lower elevations...except 31-41
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........81-96 percent.
*   24 HR Trend..........11 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming north up
    to 8 mph after midnight.
*   Ridges/Upr Slopes....North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.

.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........67-72 lower elevations...except 55-65
  higher elevations.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 4 to 10 mph.
*   Ridges/Upr Slopes....North winds 4 to 10 mph.
* Mixing Height..........4000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ214-120000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Partly cloudy. At lower elevations, a
  slight chance of showers. At higher elevations, a slight chance
  of showers and snow showers in the morning, then a slight chance
  of showers in the afternoon.
* Max Temperature........53-58 lower elevations...except 48-53
  higher elevations.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........49-56 percent.
*   24 HR Trend..........5 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
    to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
    to 8 mph with local gusts up to 20 mph in the afternoon.
* CWR....................10 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........28-33.
*   24 HR Trend..........5 degrees cooler.
* Max Humidity...........95-100 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Drainage winds up to 5 mph.
*   Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.

.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........56-61.
* Min Humidity...........33-43 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph.
*   Ridges/Upr Slopes....East winds up to 7 mph in the morning
    becoming variable up to 5 mph.
* Mixing Height..........3900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ215-120000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........66-71.
*   24 HR Trend..........Little change.
* Min Humidity...........40-45 percent.
*   24 HR Trend..........13 percent down.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........6200 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........44-49.
*   24 HR Trend..........Little change.
* Max Humidity...........73-86 percent.
*   24 HR Trend..........19 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.

.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........71-76.
* Min Humidity...........28-37 percent.
* 20-Foot Winds..........North winds 7 to 13 mph with local gusts
  up to 25 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ216-120000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........68-73.
*   24 HR Trend..........Little change.
* Min Humidity...........39-46 percent.
*   24 HR Trend..........11 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........6000 ft AGL.
* Chance of thunder......1 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........46-51.
*   24 HR Trend..........Little change.
* Max Humidity...........71-86 percent.
*   24 HR Trend..........19 percent down.
* 20-Foot Winds..........Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........72-77.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........Northwest winds 8 to 14 mph with local
  gusts up to 25 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ217-120000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........69-74.
*   24 HR Trend..........Little change.
* Min Humidity...........35-41 percent.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........6200 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........46-51.
*   24 HR Trend..........Little change.
* Max Humidity...........65-76 percent.
*   24 HR Trend..........27 percent down.
* 20-Foot Winds..........North winds 6 to 12 mph. Local gusts up to
  25 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........72-77.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........Northwest winds 9 to 15 mph with local
  gusts up to 30 mph.
* Mixing Height..........4300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ218-120000-
Carquinez Strait and Delta-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........71-76.
*   24 HR Trend..........Little change.
* Min Humidity...........37-44 percent.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........West winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........6300 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........49-54.
*   24 HR Trend..........Little change.
* Max Humidity...........73-79 percent.
*   24 HR Trend..........20 percent down.
* 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts
  up to 25 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........72-77.
* Min Humidity...........39-54 percent.
* 20-Foot Winds..........Northwest winds 9 to 15 mph with local
  gusts up to 30 mph.
* Mixing Height..........4700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ219-120000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........69-74.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........37-42 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 10 to 17 mph with local
  gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........47-52.
*   24 HR Trend..........Little change.
* Max Humidity...........67-82 percent.
*   24 HR Trend..........20 percent down.
* 20-Foot Winds..........Northwest winds 9 to 15 mph with local
  gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........71-76.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........Northwest winds 10 to 16 mph with local
  gusts up to 25 mph.
* Mixing Height..........3900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ263-279-120000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........63-68 lower elevations...except 48-58
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........42-47 percent lower elevations...except
  52-65 percent high elevations.
*   24 HR Trend..........17 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..........4700 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........47-52 lower elevations...except 37-44
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........65-80 percent.
*   24 HR Trend..........14 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.

.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........68-73 lower elevations...except 54-62
  higher elevations.
* Min Humidity...........26-37 percent lower elevations...except
  33-48 percent high elevations.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northwest winds 6 to 12 mph.
*   Ridges/Upr Slopes....Northwest winds 6 to 12 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ266-120000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........61-66 lower elevations...except 55-60
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........43-51 percent.
*   24 HR Trend..........12 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds up to 7 mph shifting to the west
    up to 8 mph in the afternoon.
*   Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........42-49.
*   24 HR Trend..........Little change.
* Max Humidity...........64-79 percent.
*   24 HR Trend..........28 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 5 to 11 mph.
*   Ridges/Upr Slopes....Variable winds up to 5 mph becoming
    northeast 5 to 11 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........63-69.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 10 to 16 mph shifting to the
    northwest 4 to 10 mph in the afternoon.
*   Ridges/Upr Slopes....Northeast winds 7 to 13 mph shifting to the
    northwest up to 7 mph in the afternoon.
* Mixing Height..........3400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ220-267-120000-
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-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........61-67.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........39-49 percent.
*   24 HR Trend..........4 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northwest winds up to 8 mph.
*   Ridges/Upr Slopes....Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........5300 ft AGL.
* Chance of thunder......1 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........42-47.
*   24 HR Trend..........Little change.
* Max Humidity...........57-72 percent.
*   24 HR Trend..........35 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 4 to 9 mph.
*   Ridges/Upr Slopes....Northeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........65-70.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
    west up to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
    west up to 7 mph in the afternoon.
* Mixing Height..........3400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ268-120000-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing. At lower elevations, a slight chance of showers. At
  higher elevations, a slight chance of snow showers in the
  morning, then a slight chance of showers and snow showers in the
  afternoon.
* Max Temperature........49-55 lower elevations...except 42-50
  higher elevations.
*   24 HR Trend..........Little change.
* Min Humidity...........44-59 percent.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
    to 8 mph in the afternoon.
*   Ridges/Upr Slopes....West winds 4 to 9 mph.
* CWR....................10 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......2 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........29-39 lower elevations...except 26-34
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........78-93 percent...except 95-100 percent in
  the high mountain valleys.
*   24 HR Trend..........11 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..........300 ft AGL.
* Chance of thunder......1 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........57-63 lower elevations...except 51-57
  higher elevations.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 7 to 13 mph shifting to the
    west up to 8 mph in the afternoon.
*   Ridges/Upr Slopes....Northeast winds 7 to 13 mph shifting to the
    southwest up to 8 mph in the afternoon.
* Mixing Height..........4100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ221-269-120000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Sat Oct 11 2025

.TODAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing.
* Max Temperature........55-62 lower elevations...except 43-53
  higher elevations.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........38-51 percent.
*   24 HR Trend..........11 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
    to 8 mph in the afternoon.
*   Ridges/Upr Slopes....Southwest winds 7 to 13 mph with local gusts
    up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........4600 ft AGL.
* Chance of thunder......1 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........37-44 lower elevations...except 26-36
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........61-76 percent.
*   24 HR Trend..........29 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..........300 ft AGL.
* Chance of thunder......0 percent.

.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........61-67 lower elevations...except 50-60
  higher elevations.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds 5 to 11 mph shifting to the
    southwest up to 8 mph in the afternoon.
*   Ridges/Upr Slopes....East winds 8 to 14 mph shifting to the
    southwest up to 8 mph in the afternoon.
* Mixing Height..........3800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$


.Extended...

...Shasta County Mountains and Coastal Range
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows 34 to 42. Northwest winds 5 to 15 mph.
.COLUMBUS DAY...Showers. Highs 42 to 51. South winds up to
10 mph.
.MONDAY NIGHT...Showers likely. Lows 34 to 42. East winds 5 to
15 mph.
.TUESDAY...Mostly cloudy with a chance of showers. Highs 42 to
51. East winds up to 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows
35 to 43. Variable less than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers. Highs 46 to
56. Variable less than 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 34 to 44. Variable less
than 5 mph.

...Northern Sierra and Lassen Park
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows 34 to 43. Southeast winds up to 10 mph.
.COLUMBUS DAY...Mostly cloudy with a chance of showers. Highs
45 to 54. South winds 5 to 15 mph.
.MONDAY NIGHT...Showers likely. Lows 34 to 42. Southeast winds
5 to 15 mph.
.TUESDAY...Showers and a slight chance of thunderstorms. Highs
42 to 49. Variable less than 5 mph.
.TUESDAY NIGHT...Showers likely. Lows 33 to 41. Variable less
than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers. Highs 44 to
53. Variable less than 5 mph.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 31 to 40. Variable less than 5 mph.

...Sierra Nevada Foothills
.SUNDAY NIGHT...Partly cloudy. Lows 44 to 50. East winds up to
10 mph.
.COLUMBUS DAY...Mostly cloudy with a chance of showers. Highs
53 to 60. South winds 10 to 20 mph.
.MONDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows 43 to 49. Southeast winds 5 to 15 mph.
.TUESDAY...Showers and a slight chance of thunderstorms. Highs
50 to 56. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Showers likely. Lows 42 to 48. Variable less
than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers. Highs 54 to
60. Variable less than 5 mph.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 41 to 46. Variable less than 5 mph.

...Central Valley and Delta
.SUNDAY NIGHT...Partly cloudy. Lows 48 to 53. Southwest winds
5 to 15 mph.
.COLUMBUS DAY...Showers likely. Highs 63 to 68. South winds 10 to
20 mph.
.MONDAY NIGHT...Showers and a slight chance of thunderstorms.
Lows 49 to 54. Southeast winds 10 to 20 mph.
.TUESDAY...Showers and a slight chance of thunderstorms. Highs
58 to 63. Southeast winds 5 to 15 mph.
.TUESDAY NIGHT...Showers likely. Lows 48 to 53. Variable less
than 5 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers. Highs 62 to
67. Variable less than 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 46 to 51. Variable less
than 5 mph.

$$