567
FNUS56 KSTO 161101
FWFSTO

Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
400 AM PDT Thu Oct 16 2025




.DISCUSSION...
Mostly clear and dry conditions today across the region. Light
north to east winds across the area today. Warming high
temperatures are expected to continue through Sunday, then a
weather system is forecast to move through the area bringing a
non-zero chance of wetting rain to higher elevations. Periods of
locally breezy north winds Sunday and Monday.


CAZ213-170000-
Eastern Portion of Shasta-Trinity NF-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........73-78 lower elevations...except 62-71
  higher elevations.
*   24 HR Trend..........15 degrees warmer.
* Min Humidity...........27-37 percent.
*   24 HR Trend..........40 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 4 to 10 mph.
*   Ridges/Upr Slopes....Northeast winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........3900 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........49-55 lower elevations...except 38-48
  higher elevations.
*   24 HR Trend..........MISSING.
* Max Humidity...........50-65 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds 5 to 11 mph.
*   Ridges/Upr Slopes....North winds 5 to 11 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........77-82 lower elevations...except 66-76
  higher elevations.
* Min Humidity...........26-41 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 5 to 11 mph.
* Mixing Height..........3800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ214-170000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........64-69 lower elevations...except 58-63
  higher elevations.
*   24 HR Trend..........9 degrees warmer.
* Min Humidity...........25-30 percent.
*   24 HR Trend..........34 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.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........32-37.
*   24 HR Trend..........MISSING.
* Max Humidity...........76-86 percent lower elevations...except
  55-70 percent high elevations.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds up to 8 mph.
*   Ridges/Upr Slopes....East winds up to 8 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........71-76 lower elevations...except 65-70
  higher elevations.
* Min Humidity...........24-32 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..........3900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ215-170000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........74-79.
*   24 HR Trend..........14 degrees warmer.
* Min Humidity...........30-35 percent.
*   24 HR Trend..........37 percent down.
* 20-Foot Winds..........North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........3600 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........49-54.
*   24 HR Trend..........MISSING.
* Max Humidity...........53-67 percent.
*   24 HR Trend..........MISSING.
* 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........75-80.
* Min Humidity...........24-39 percent.
* 20-Foot Winds..........North winds 4 to 9 mph.
* Mixing Height..........2600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ216-170000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........71-76.
*   24 HR Trend..........11 degrees warmer.
* Min Humidity...........41-51 percent.
*   24 HR Trend..........32 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........2600 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........45-51.
*   24 HR Trend..........MISSING.
* Max Humidity...........69-84 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Partly cloudy early in the morning then
  clearing.
* Max Temperature........71-76.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........Northeast winds up to 8 mph shifting to
  the southwest in the afternoon.
* Mixing Height..........2300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ217-170000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny. Patchy fog in the morning.
* Max Temperature........68-73.
*   24 HR Trend..........8 degrees warmer.
* Min Humidity...........48-62 percent.
*   24 HR Trend..........17 percent down.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........2800 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........45-50.
*   24 HR Trend..........MISSING.
* Max Humidity...........79-94 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........South winds up to 6 mph shifting to the
  east up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Partly cloudy early in the morning then
  clearing.
* Max Temperature........71-76.
* Min Humidity...........40-55 percent.
* 20-Foot Winds..........Northeast winds up to 8 mph shifting to
  the west in the afternoon.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ218-170000-
Carquinez Strait and Delta-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........69-74.
*   24 HR Trend..........6 degrees warmer.
* Min Humidity...........56-62 percent.
*   24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........47-52.
*   24 HR Trend..........MISSING.
* Max Humidity...........89-95 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
  late in the morning then becoming mostly sunny.
* Max Temperature........70-75.
* Min Humidity...........46-61 percent.
* 20-Foot Winds..........Northeast winds up to 8 mph.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ219-170000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny. Patchy fog in the morning.
* Max Temperature........66-71.
*   24 HR Trend..........4 degrees warmer.
* Min Humidity...........57-69 percent.
*   24 HR Trend..........7 percent down.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
  to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3100 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........47-52.
*   24 HR Trend..........MISSING.
* Max Humidity...........79-94 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........Northwest winds up to 6 mph shifting to
  the southeast up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........70-75.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* Mixing Height..........2900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ263-279-170000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........72-77 lower elevations...except 57-66
  higher elevations.
*   24 HR Trend..........13 degrees warmer.
* Min Humidity...........33-39 percent.
*   24 HR Trend..........39 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..........2700 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........54-59 lower elevations...except 47-53
  higher elevations.
*   24 HR Trend..........MISSING.
* Max Humidity...........39-50 percent.
*   24 HR Trend..........MISSING.
* 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............Partly cloudy early in the morning then
  clearing.
* Max Temperature........76-81 lower elevations...except 62-70
  higher elevations.
* Min Humidity...........31-46 percent.
* 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 5 to 11 mph shifting to the
    northeast up to 7 mph in the afternoon.
* Mixing Height..........2700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ266-170000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........66-74.
*   24 HR Trend..........14 degrees warmer.
* Min Humidity...........29-42 percent.
*   24 HR Trend..........40 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northwest winds 4 to 9 mph.
*   Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
    northwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........50-55.
*   24 HR Trend..........MISSING.
* Max Humidity...........38-48 percent.
*   24 HR Trend..........MISSING.
* 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............Partly cloudy early in the morning then
  clearing.
* Max Temperature........69-75.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 8 to 14 mph in the morning
    becoming upslope up to 5 mph.
*   Ridges/Upr Slopes....Northeast winds 6 to 12 mph shifting to the
    west up to 7 mph in the afternoon.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ220-267-170000-
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-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........63-68.
*   24 HR Trend..........8 degrees warmer.
* Min Humidity...........52-64 percent.
*   24 HR Trend..........17 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....Northeast winds up to 7 mph shifting to the
    west in the afternoon.
* CWR....................0 percent.
* Mixing Height..........2400 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........45-50.
*   24 HR Trend..........MISSING.
* Max Humidity...........60-75 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 5 to 11 mph.
*   Ridges/Upr Slopes....East winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........68-73.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds up to 8 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..........2900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ268-170000-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........60-65 lower elevations...except 53-60
  higher elevations.
*   24 HR Trend..........12 degrees warmer.
* Min Humidity...........26-37 percent.
*   24 HR Trend..........43 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..........3500 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........35-45.
*   24 HR Trend..........MISSING.
* Max Humidity...........43-58 percent...except 68-83 percent in
  the high mountain valleys.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 8 to 14 mph.
*   Ridges/Upr Slopes....Northeast winds 9 to 15 mph with local gusts
    up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Partly cloudy early in the morning then
  clearing.
* Max Temperature........65-70 lower elevations...except 59-65
  higher elevations.
* Min Humidity...........22-37 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds 6 to 12 mph.
*   Ridges/Upr Slopes....Northeast winds 6 to 12 mph.
* Mixing Height..........3400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ221-269-170000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
400 AM PDT Thu Oct 16 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........60-66 lower elevations...except 47-57
  higher elevations.
*   24 HR Trend..........11 degrees warmer.
* Min Humidity...........43-58 percent.
*   24 HR Trend..........31 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
    northwest up to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Northeast winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........2500 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........41-47 lower elevations...except 28-38
  higher elevations.
*   24 HR Trend..........MISSING.
* Max Humidity...........53-68 percent.
*   24 HR Trend..........MISSING.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds 10 to 16 mph.
*   Ridges/Upr Slopes....East winds 11 to 17 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.

.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........65-71 lower elevations...except 53-63
  higher elevations.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds 6 to 12 mph in the morning
    becoming upslope up to 5 mph.
*   Ridges/Upr Slopes....East winds 12 to 18 mph becoming northeast
    up to 8 mph in the afternoon.
* Mixing Height..........2900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$


.Extended...

...Shasta County Mountains and Coastal Range
.FRIDAY NIGHT...Clear. Lows 41 to 51. Northwest winds up to
10 mph.
.SATURDAY...Sunny. Highs 65 to 74. East winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 41 to 51. West winds up to 10 mph.
.SUNDAY...Partly cloudy with a slight chance of showers. Highs
55 to 64. West winds up to 10 mph.
.SUNDAY NIGHT...Colder, clear. Lows 34 to 44. Northwest winds
5 to 15 mph.
.MONDAY...Sunny. Highs 55 to 65. North winds 5 to 15 mph.
.MONDAY NIGHT...Clear. Lows 36 to 46. North winds 5 to 10 mph.

...Northern Sierra and Lassen Park
.FRIDAY NIGHT...Clear. Lows 39 to 49. East winds up to 10 mph.
.SATURDAY...Sunny. Highs 67 to 75. South winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 41 to 51. East winds up to 10 mph.
.SUNDAY...Mostly sunny. Highs 59 to 69. South winds 5 to 10 mph.
.SUNDAY NIGHT...Colder, clear. Lows 34 to 44. Variable less than
5 mph.
.MONDAY...Sunny. Highs 58 to 68. Northeast winds up to 10 mph.
.MONDAY NIGHT...Clear. Lows 36 to 46. Northeast winds 5 to
10 mph.

...Sierra Nevada Foothills
.FRIDAY NIGHT...Clear. Lows 49 to 54. East winds up to 10 mph.
.SATURDAY...Sunny. Highs 71 to 76. Southwest winds 5 to 15 mph.
.SATURDAY NIGHT...Clear. Lows 50 to 55. East winds up to 10 mph.
.SUNDAY...Mostly sunny. Highs 66 to 74. South winds 5 to 10 mph.
.SUNDAY NIGHT...Clear. Lows 45 to 50. Variable less than 5 mph.
.MONDAY...Sunny. Highs 67 to 72. North winds up to 10 mph.
.MONDAY NIGHT...Clear. Lows 47 to 52. Northeast winds up to
10 mph.

...Central Valley and Delta
.FRIDAY NIGHT...Clear. Lows 47 to 52. Variable less than 5 mph.
.SATURDAY...Sunny. Highs 75 to 80. North winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 50 to 55. Variable less than 5 mph.
.SUNDAY...Sunny. Highs 73 to 78. South winds up to 10 mph.
.SUNDAY NIGHT...Clear. Lows 49 to 54. Northwest winds 5 to
10 mph.
.MONDAY...Sunny. Highs 71 to 76. Northwest winds 10 to 20 mph.
.MONDAY NIGHT...Clear. Lows 47 to 52. North winds up to 10 mph.

$$