Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
335
FNUS56 KSTO 040730
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Mon Aug 4 2025
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY.
...ISOLATED HIGH ELEVATION THUNDERSTORM CHANCES TODAY...
.DISCUSSION...
Isolated thunderstorm chances continue today across the Shasta
County mountains, along with occasional breezy westerly winds near
the Green Fire. Gusty outflow winds and isolated lightning
strikes will result in elevated fire weather conditions in the
Shasta-Trinity National Forest region. Near normal temperatures
and breezy south to west winds continue today. Temperatures will
begin to warm up late this week.
CAZ213-050000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........87-92 lower elevations...except 77-86
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........21-28 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....North winds 4 to 9 mph shifting to the
southwest in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7700 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........60-65 lower elevations...except 51-61
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........49-64 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds up to 8 mph shifting to the north
after midnight.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........90-95 lower elevations...except 79-89
higher elevations.
* Min Humidity...........17-32 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the
southwest up to 8 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-050000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-85 lower elevations...except 75-80
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........20-25 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 4
to 9 mph with local gusts up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7900 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........46-53.
* 24 HR Trend..........Little change.
* Max Humidity...........59-70 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph with local gusts
up to 20 mph in the evening becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph with local gusts
up to 20 mph in the evening becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........83-88 lower elevations...except 77-83
higher elevations.
* Min Humidity...........18-29 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-050000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........90-95.
* 24 HR Trend..........Little change.
* Min Humidity...........21-29 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........7800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........52-64 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds up to 8 mph shifting to
the northwest up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........91-96.
* Min Humidity...........18-33 percent.
* 20-Foot Winds..........Northeast winds up to 6 mph shifting to
the south up to 7 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-050000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93.
* 24 HR Trend..........Little change.
* Min Humidity...........27-36 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........57-62.
* 24 HR Trend..........Little change.
* Max Humidity...........63-78 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94.
* Min Humidity...........22-37 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* Mixing Height..........4000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-050000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........88-93.
* 24 HR Trend..........Little change.
* Min Humidity...........24-32 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 4 to 10 mph. Local gusts up to
20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4900 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........53-59.
* 24 HR Trend..........Little change.
* Max Humidity...........69-84 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 5 to 11 mph with local gusts
up to 20 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........South winds up to 8 mph.
* Mixing Height..........3600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-050000-
Carquinez Strait and Delta-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........83-88.
* 24 HR Trend..........Little change.
* Min Humidity...........32-37 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........Southwest winds 9 to 15 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........3500 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........53-58.
* 24 HR Trend..........Little change.
* Max Humidity...........79-87 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........Southwest winds 9 to 15 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........82-90.
* Min Humidity...........40-55 percent.
* 20-Foot Winds..........Southwest winds 6 to 12 mph. Local gusts
up to 25 mph in the morning.
* Mixing Height..........2900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-050000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92.
* 24 HR Trend..........Little change.
* Min Humidity...........24-32 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 10 to 16 mph with local gusts
up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........4600 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........54-59.
* 24 HR Trend..........Little change.
* Max Humidity...........63-78 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 9 to 15 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92.
* Min Humidity...........18-32 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-050000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........87-92 lower elevations...except 71-81
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........23-31 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 6 to 12 mph shifting to the
southeast up to 8 mph in the afternoon.
* Ridges/Upr Slopes....West winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........6400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........64-69 lower elevations...except 55-61
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........44-51 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 6 to 12 mph.
* Ridges/Upr Slopes....West winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-94 lower elevations...except 74-84
higher elevations.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 8 mph shifting to the
east up to 7 mph in the afternoon.
* Ridges/Upr Slopes....North winds 4 to 10 mph shifting to the east
up to 8 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-050000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........85-90 lower elevations...except 80-86
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........23-31 percent.
* 24 HR Trend..........Little change.
* 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.
* CWR....................0 percent.
* Mixing Height..........6300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........60-65.
* 24 HR Trend..........Little change.
* Max Humidity...........46-56 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East 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.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92 lower elevations...except 82-88
higher elevations.
* Min Humidity...........21-36 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph shifting to the
southwest up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 7 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-050000-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........82-87.
* 24 HR Trend..........Little change.
* Min Humidity...........25-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........56-61.
* 24 HR Trend..........Little change.
* Max Humidity...........51-65 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........85-90.
* Min Humidity...........16-30 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 8 mph in the afternoon.
* Mixing Height..........4500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-050000-
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 Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........73-81 lower elevations...except 67-75
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........24-34 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..........5900 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........46-56.
* 24 HR Trend..........Little change.
* Max Humidity...........50-65 percent...except 67-79 percent in
the high mountain valleys.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 4 to 9 mph shifting to the
northeast up to 7 mph after midnight.
* Ridges/Upr Slopes....Southwest winds 4 to 10 mph shifting to the
northeast up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........76-82 lower elevations...except 69-77
higher elevations.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
southwest in the afternoon.
* Ridges/Upr Slopes....East winds up to 8 mph shifting to the
southwest in the afternoon.
* Mixing Height..........5600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-050000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Mon Aug 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........78-83 lower elevations...except 66-76
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........21-29 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 5 to 11 mph.
* Ridges/Upr Slopes....Southwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........5100 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........53-61 lower elevations...except 42-52
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........49-64 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the
east up to 7 mph after midnight.
* Ridges/Upr Slopes....Southwest winds 5 to 11 mph shifting to the
southeast up to 8 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Sunny.
* Max Temperature........79-85 lower elevations...except 67-77
higher elevations.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the
southwest 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Southeast winds up to 8 mph shifting to the
southwest 5 to 11 mph in the afternoon.
* Mixing Height..........4800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.TUESDAY NIGHT...Clear. Lows 54 to 64. Northwest winds 5 to
15 mph.
.WEDNESDAY...Mostly sunny. Highs 79 to 88. West winds up to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 55 to 65. Northwest winds
5 to 15 mph.
.THURSDAY...Mostly sunny. Highs 81 to 91. Variable less than
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows 57 to 67. Northwest winds up
to 10 mph.
.FRIDAY...Mostly sunny. Highs 84 to 94. Variable less than 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows 58 to 68. West winds up to
10 mph.
...Northern Sierra and Lassen Park
.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. East winds up to
10 mph.
.THURSDAY...Mostly sunny. Highs 81 to 90. South winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 55 to 65. Variable less than
5 mph.
.FRIDAY...Mostly sunny. Highs 84 to 92. Variable less than 5 mph.
.FRIDAY NIGHT...Clear. Lows 57 to 67. Variable less than 5 mph.
...Sierra Nevada Foothills
.TUESDAY NIGHT...Clear. Lows 61 to 66. East winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 88 to 93. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 63 to 68. East winds up to
10 mph.
.THURSDAY...Mostly sunny. Highs 89 to 95. Variable less than
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows 64 to 70. Variable less than
5 mph.
.FRIDAY...Mostly sunny. Highs 91 to 96. Variable less than 5 mph.
.FRIDAY NIGHT...Clear. Lows 65 to 71. Variable less than 5 mph.
...Central Valley and Delta
.TUESDAY NIGHT...Clear. Lows 58 to 64. Southwest winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 94 to 99. West winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 61 to 67. Southwest winds
5 to 15 mph.
.THURSDAY...Mostly sunny. Highs 94 to 99. West winds up to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 60 to 66. South winds up to
10 mph.
.FRIDAY...Sunny. Highs 95 to 100. Variable less than 5 mph.
.FRIDAY NIGHT...Clear. Lows 61 to 68. Southwest winds up to
10 mph.
$$