352
FNUS56 KSTO 130731
FWFSTO

Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Wed Aug 13 2025

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


.DISCUSSION...
Cooling high temperatures and improving humidity recoveries
continue today and through the next few days. Periods of breezy
onshore winds in the Delta and adjacent areas will also help with
cooler high temperatures and humidity values for the next few
days. Overall, dry weather is expected, with an isolated (less
than 10% chance) t-storm mainly south of HWY-50 in the Sierra
today and Wednesday.


CAZ213-140000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99 lower elevations...except 85-94
  higher elevations.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........20-26 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south 4
    to 9 mph in the afternoon.
*   Ridges/Upr Slopes....Southwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........4900 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........63-68 lower elevations...except 55-65
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........56-71 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...South winds up to 7 mph in the evening
    becoming drainage up to 5 mph.
*   Ridges/Upr Slopes....Southwest winds 4 to 9 mph with local gusts
    up to 20 mph in the evening becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99 lower elevations...except 83-93
  higher elevations.
* Min Humidity...........17-30 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up
    to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Variable winds up to 7 mph becoming
    southwest up to 8 mph in the afternoon.
* Mixing Height..........7000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ214-140000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........90-95 lower elevations...except 85-90
  higher elevations.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........16-21 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 6 to
    12 mph with local gusts up to 25 mph in the afternoon.
*   Ridges/Upr Slopes....West winds 4 to 10 mph. Local gusts up to 25
    mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6900 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........55-60 lower elevations...except 50-59
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........62-73 percent.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...West winds 4 to 10 mph with local gusts up
    to 20 mph in the evening becoming drainage up to 5 mph.
*   Ridges/Upr Slopes....Southwest winds 4 to 10 mph with local gusts
    up to 25 mph in the evening becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93 lower elevations...except 81-87
  higher elevations.
* Min Humidity...........18-28 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....Variable winds up to 7 mph becoming west up
    to 8 mph with local gusts up to 20 mph in the afternoon.
* Mixing Height..........8000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.


$$

CAZ215-140000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........22-33 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........3900 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........62-67.
*   24 HR Trend..........Little change.
* Max Humidity...........66-81 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........South winds up to 8 mph. Local gusts up to
  20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
  south up to 7 mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ216-140000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........91-96.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........32-45 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.
* Mixing Height..........2800 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........58-63.
*   24 HR Trend..........Little change.
* Max Humidity...........83-98 percent.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........Southeast winds 5 to 11 mph. Local gusts
  up to 20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........92-97.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* Mixing Height..........3000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ217-140000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing.
* Max Temperature........88-93.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........32-42 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........South winds 7 to 13 mph with local gusts
  up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........56-61.
*   24 HR Trend..........Little change.
* Max Humidity...........85-98 percent.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........South 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.

.THURSDAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing.
* Max Temperature........90-95.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........Southwest winds up to 8 mph.
* Mixing Height..........3000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ218-140000-
Carquinez Strait and Delta-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Partly cloudy in the morning then
  clearing.
* Max Temperature........80-89.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........39-54 percent.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........West winds 11 to 17 mph with local gusts
  up to 30 mph.
* CWR....................0 percent.
* Mixing Height..........2100 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........57-62.
*   24 HR Trend..........Little change.
* Max Humidity...........88-93 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds 11 to 17 mph with local
  gusts up to 30 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Partly cloudy early in the morning then
  clearing.
* Max Temperature........82-90.
* Min Humidity...........52-67 percent.
* 20-Foot Winds..........West 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.


$$

CAZ219-140000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........89-94.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........25-37 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........Northwest winds 7 to 13 mph.
* CWR....................0 percent.
* Mixing Height..........3100 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........57-62.
*   24 HR Trend..........Little change.
* Max Humidity...........76-91 percent.
*   24 HR Trend..........9 percent up.
* 20-Foot Winds..........Northwest winds 7 to 13 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94.
* Min Humidity...........25-40 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph.
* Mixing Height..........3100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ263-279-140000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98 lower elevations...except 80-90
  higher elevations.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........22-29 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
    5 to 10 mph with local gusts up to 20 mph in the afternoon.
*   Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the
    south 5 to 11 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4600 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........66-71 lower elevations...except 60-66
  higher elevations.
*   24 HR Trend..........Little change.
* Max Humidity...........45-57 percent.
*   24 HR Trend..........4 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds up to 8 mph in the evening
    becoming drainage up to 5 mph.
*   Ridges/Upr Slopes....Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........93-98 lower elevations...except 78-88
  higher elevations.
* Min Humidity...........22-37 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...North winds up to 7 mph shifting to the east
    up to 8 mph in the afternoon.
*   Ridges/Upr Slopes....North winds up to 8 mph shifting to the
    southeast 4 to 9 mph with local gusts up to 20 mph in the
    afternoon.
* Mixing Height..........6000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.


$$

CAZ266-140000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........87-94.
*   24 HR Trend..........6 degrees cooler.
* Min Humidity...........23-33 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds 4 to 9 mph.
*   Ridges/Upr Slopes....Variable winds up to 7 mph becoming
    southwest 4 to 9 mph with local gusts up to 20 mph in the
    afternoon.
* CWR....................0 percent.
* Mixing Height..........3600 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........62-67.
*   24 HR Trend..........Little change.
* Max Humidity...........52-67 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southeast winds up to 8 mph with local gusts
    up to 20 mph in the evening becoming drainage up to 5 mph.
*   Ridges/Upr Slopes....Southeast winds up to 8 mph in the evening
    becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-95.
* Min Humidity...........24-39 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
    up to 7 mph in the afternoon.
*   Ridges/Upr Slopes....Variable winds up to 7 mph becoming
    southwest up to 7 mph in the afternoon.
* Mixing Height..........4500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ220-267-140000-
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 Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........88-93.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........23-32 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds up to 8 mph.
*   Ridges/Upr Slopes....Southwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........3200 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........58-64.
*   24 HR Trend..........Little change.
* Max Humidity...........60-75 percent lower elevations...except
  50-63 percent high elevations.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the
    east up to 7 mph after midnight.
*   Ridges/Upr Slopes....South winds up to 8 mph in the evening
    becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92.
* Min Humidity...........19-34 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....Variable winds up to 7 mph becoming
    southwest up to 8 mph in the afternoon.
* Mixing Height..........3900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.


$$

CAZ268-140000-
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 Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-91 lower elevations...except 76-84
  higher elevations.
*   24 HR Trend..........5 degrees cooler.
* Min Humidity...........17-28 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds 4 to 10 mph.
*   Ridges/Upr Slopes....Southwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4900 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........52-62 lower elevations...except 50-57
  higher elevations.
*   24 HR Trend..........4 degrees cooler.
* Max Humidity...........52-67 percent...except 63-75 percent in
  the high mountain valleys.
*   24 HR Trend..........5 percent up.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds 4 to 10 mph with local gusts
    up to 20 mph shifting to the northeast up to 7 mph after
    midnight.
*   Ridges/Upr Slopes....Southwest winds 5 to 11 mph shifting to the
    north up to 8 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........79-87 lower elevations...except 73-81
  higher elevations.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Northeast winds up to 7 mph shifting to the
    southwest up to 8 mph in the afternoon.
*   Ridges/Upr Slopes....East winds up to 7 mph shifting to the west
    4 to 10 mph in the afternoon.
* Mixing Height..........6100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.


$$

CAZ221-269-140000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Wed Aug 13 2025

.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........85-91 lower elevations...except 75-85
  higher elevations.
*   24 HR Trend..........4 degrees cooler.
* Min Humidity...........17-23 percent.
*   24 HR Trend..........4 percent down.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southwest winds 5 to 11 mph.
*   Ridges/Upr Slopes....Southwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4400 ft AGL.
* Chance of thunder......0 percent.

.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........57-65 lower elevations...except 48-58
  higher elevations.
*   24 HR Trend..........4 degrees cooler.
* Max Humidity...........38-52 percent.
*   24 HR Trend..........Little change.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...Southeast winds up to 8 mph.
*   Ridges/Upr Slopes....Southeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.

.THURSDAY...
* Sky/Weather............Sunny.
* Max Temperature........83-89 lower elevations...except 71-81
  higher elevations.
* Min Humidity...........16-31 percent.
* 20-Foot Winds..........
*   Valleys/Lwr Slopes...East winds up to 7 mph shifting to the
    southwest 4 to 9 mph in the afternoon.
*   Ridges/Upr Slopes....Southeast winds up to 8 mph shifting to the
    southwest 5 to 11 mph in the afternoon.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.


$$


.Extended...

...Shasta County Mountains and Coastal Range
.THURSDAY NIGHT...Clear. Lows 55 to 65. Northwest winds 5 to
15 mph.
.FRIDAY...Sunny. Highs 81 to 91. Northwest winds 5 to 15 mph.
.FRIDAY NIGHT...Clear. Lows 55 to 65. Northwest winds 5 to
15 mph.
.SATURDAY...Mostly sunny. Highs 76 to 86. Southwest winds up to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 54 to 63. West winds up to
10 mph.
.SUNDAY...Mostly sunny. Highs 72 to 81. South winds up to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows 51 to 61. West winds up to
10 mph.

...Northern Sierra and Lassen Park
.THURSDAY NIGHT...Clear. Lows 54 to 64. Northeast winds up to
10 mph.
.FRIDAY...Sunny. Highs 82 to 90. West winds 5 to 15 mph.
.FRIDAY NIGHT...Clear. Lows 53 to 63. East winds up to 10 mph.
.SATURDAY...Sunny. Highs 77 to 85. South winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 51 to 61. Variable less than
5 mph.
.SUNDAY...Mostly sunny. Highs 74 to 82. South winds up to 10 mph.
.SUNDAY NIGHT...Clear. Lows 49 to 59. Variable less than 5 mph.

...Sierra Nevada Foothills
.THURSDAY NIGHT...Clear. Lows 62 to 68. Variable less than 5 mph.
.FRIDAY...Sunny. Highs 88 to 94. West winds up to 10 mph.
.FRIDAY NIGHT...Clear. Lows 61 to 67. East winds up to 10 mph.
.SATURDAY...Sunny. Highs 84 to 89. Southwest winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 59 to 64. Variable less than
5 mph.
.SUNDAY...Mostly sunny. Highs 81 to 86. Southwest winds up to
10 mph.
.SUNDAY NIGHT...Clear. Lows 57 to 63. Variable less than 5 mph.

...Central Valley and Delta
.THURSDAY NIGHT...Clear. Lows 59 to 66. Southwest winds 5 to
15 mph.
.FRIDAY...Sunny. Highs 94 to 99. West winds 5 to 15 mph.
.FRIDAY NIGHT...Clear. Lows 62 to 67. Southwest winds 10 to
20 mph.
.SATURDAY...Sunny. Highs 89 to 94. South winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 61 to 66. South winds 5 to
15 mph.
.SUNDAY...Mostly sunny. Highs 86 to 91. Southwest winds up to
10 mph.
.SUNDAY NIGHT...Clear. Lows 58 to 63. Southwest winds up to
10 mph.

$$