Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
703
FNUS56 KSTO 030730
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Sun Aug 3 2025
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY.
...ISOLATED HIGH ELEVATION THUNDERSTORM CHANCES THIS WEEKEND...
.DISCUSSION...
Isolated thunderstorm chances continue this weekend across the Shasta
County mountains, with the highest chances on Sunday. Gusty
outflow winds and isolated lightning strikes will result in
elevated fire weather conditions. Near normal temperatures and
breezy south to west winds continue into the weekend, with winds
becoming breezier on Sunday. Temperatures begin to warm up late
next week.
CAZ213-040000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........90-95 lower elevations...except 79-88
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........24-31 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south 4
to 9 mph in the afternoon.
* Ridges/Upr Slopes....West winds 4 to 9 mph. Local gusts up to 20
mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........8700 ft AGL.
* Chance of thunder......9 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........60-65 lower elevations...except 51-61
higher elevations.
* 24 HR Trend..........4 degrees cooler.
* Max Humidity...........62-77 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......9 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93 lower elevations...except 77-87
higher elevations.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....North winds 4 to 9 mph shifting to the
southwest up to 8 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-040000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........83-88 lower elevations...except 78-83
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........22-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 5 to
11 mph with local gusts up to 25 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 5
to 11 mph with local gusts up to 25 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........9200 ft AGL.
* Chance of thunder......5 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........51-56 lower elevations...except 46-54
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........73-85 percent.
* 24 HR Trend..........14 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 4 to 10 mph with local gusts up
to 20 mph in the evening becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 10 mph with local gusts
up to 20 mph in the evening becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........900 ft AGL.
* Chance of thunder......6 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........81-86 lower elevations...except 75-81
higher elevations.
* Min Humidity...........22-35 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph with local gusts up to 20 mph in the afternoon.
* Mixing Height..........8100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-040000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........92-97.
* 24 HR Trend..........Little change.
* Min Humidity...........24-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 8 mph. Local gusts up to
20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7900 ft AGL.
* Chance of thunder......3 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........62-67.
* 24 HR Trend..........Little change.
* Max Humidity...........53-65 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........90-95.
* Min Humidity...........21-36 percent.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* Mixing Height..........6400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-040000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........91-96.
* 24 HR Trend..........Little change.
* Min Humidity...........27-38 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Southeast winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........58-63.
* 24 HR Trend..........Little change.
* Max Humidity...........65-79 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds 6 to 12 mph. Local gusts
up to 20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* Mixing Height..........4300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-040000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94.
* 24 HR Trend..........Little change.
* Min Humidity...........26-35 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........South winds 5 to 11 mph. Local gusts up to
20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........55-60.
* 24 HR Trend..........Little change.
* Max Humidity...........69-81 percent.
* 24 HR Trend..........7 percent down.
* 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.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........South winds 4 to 9 mph.
* Mixing Height..........3900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-040000-
Carquinez Strait and Delta-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-88.
* 24 HR Trend..........Little change.
* Min Humidity...........36-43 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds 9 to 15 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........2600 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........55-60.
* 24 HR Trend..........Little change.
* Max Humidity...........74-80 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........Southwest winds 10 to 16 mph with local
gusts up to 30 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........80-88.
* Min Humidity...........40-55 percent.
* 20-Foot Winds..........Southwest winds 7 to 13 mph with local
gusts up to 25 mph.
* Mixing Height..........3300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-040000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94.
* 24 HR Trend..........Little change.
* Min Humidity...........21-33 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 8 to 14 mph. Local gusts up to
25 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4100 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........55-60.
* 24 HR Trend..........Little change.
* Max Humidity...........64-78 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........West winds 12 to 19 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........86-91.
* Min Humidity...........22-37 percent.
* 20-Foot Winds..........West winds 8 to 14 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-040000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........89-94 lower elevations...except 74-84
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........26-34 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph shifting to the
southeast 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Northwest winds 5 to 11 mph shifting to the
southwest 6 to 12 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7300 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-69 lower elevations...except 53-61
higher elevations.
* 24 HR Trend..........4 degrees cooler.
* Max Humidity...........40-49 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 8 to 14 mph with local gusts up
to 25 mph.
* Ridges/Upr Slopes....West winds 8 to 14 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92 lower elevations...except 71-81
higher elevations.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 6 to 12 mph shifting to the
east up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northwest winds 7 to 13 mph shifting to the
southeast up to 8 mph in the afternoon.
* Mixing Height..........6500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-040000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93 lower elevations...except 82-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 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..........6700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........59-64.
* 24 HR Trend..........4 degrees cooler.
* Max Humidity...........52-64 percent.
* 24 HR Trend..........11 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds 4 to 9 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..........600 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........85-90 lower elevations...except 80-86
higher elevations.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 7 mph in the afternoon.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-040000-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........86-91.
* 24 HR Trend..........Little change.
* Min Humidity...........21-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........56-61.
* 24 HR Trend..........4 degrees cooler.
* Max Humidity...........53-68 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the
southeast up to 7 mph after midnight.
* Ridges/Upr Slopes....South winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........82-87.
* Min Humidity...........19-34 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 8 mph in the afternoon.
* Mixing Height..........4200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-040000-
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 Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........76-84 lower elevations...except 70-78
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........21-32 percent.
* 24 HR Trend..........Little change.
* 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..........7000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........47-57.
* 24 HR Trend..........Little change.
* Max Humidity...........59-74 percent...except 73-80 percent in
the high mountain valleys.
* 24 HR Trend..........13 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 5 to 11 mph shifting to the
east up to 7 mph after midnight.
* Ridges/Upr Slopes....Southwest winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........74-80 lower elevations...except 67-75
higher elevations.
* Min Humidity...........26-41 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
southwest 4 to 10 mph in the afternoon.
* Mixing Height..........6200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-040000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........81-86 lower elevations...except 69-79
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........18-25 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 6 to 12 mph.
* Ridges/Upr Slopes....Southwest winds 6 to 12 mph with local gusts
up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........5700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........54-61 lower elevations...except 42-52
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds up to 8 mph shifting to the east
up to 7 mph after midnight.
* Ridges/Upr Slopes....South winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........77-83 lower elevations...except 65-75
higher elevations.
* Min Humidity...........21-36 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the
southwest 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Southeast winds 4 to 9 mph shifting to the
southwest 6 to 12 mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.MONDAY NIGHT...Clear. Lows 52 to 62. Northwest winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 78 to 87. South winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 54 to 64. Northwest winds 5 to
15 mph.
.WEDNESDAY...Mostly sunny. Highs 79 to 89. Southwest winds up to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66. West winds up to
10 mph.
.THURSDAY...Mostly sunny. Highs 81 to 90. South winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 57 to 67. Northwest winds up
to 10 mph.
...Northern Sierra and Lassen Park
.MONDAY NIGHT...Clear. Lows 50 to 60. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 78 to 86. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 52 to 62. East winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 80 to 89. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 54 to 64. Variable less
than 5 mph.
.THURSDAY...Mostly sunny. Highs 81 to 90. South winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 56 to 66. Variable less than
5 mph.
...Sierra Nevada Foothills
.MONDAY NIGHT...Clear. Lows 58 to 64. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 85 to 91. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 62 to 67. East winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 88 to 94. Variable less than 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 64 to 69. Variable less
than 5 mph.
.THURSDAY...Mostly sunny. Highs 89 to 94. Variable less than
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows 65 to 70. Variable less than
5 mph.
...Central Valley and Delta
.MONDAY NIGHT...Clear. Lows 55 to 61. Southwest winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 91 to 96. Southwest winds 5 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 59 to 65. Southwest winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 94 to 99. West winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 62 to 67. Southwest winds
up to 10 mph.
.THURSDAY...Mostly sunny. Highs 94 to 99. West winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 62 to 67. Southwest winds up
to 10 mph.
$$