Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
471
FNUS56 KSTO 150730
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT THU MAY 15 2025
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY
.DISCUSSION...
...Elevated Fire Weather Conditions expected in the Valley Sunday
through Tuesday from Gusty Northerly Winds and Low Relative
Humidity...
Drier and warmer weather expected mid to late this week with
occasionally breezy diurnal winds. Slight chance of showers or
thunderstorms Saturday into Sunday, mainly over higher terrain.
Elevated fire weather conditions then develop in the Valley
Sunday through Tuesday from gusty northerly winds and low relative
humidity.
CAZ213-160000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Partly cloudy.
* Max Temperature........77-82 lower elevations...except 67-76
higher elevations.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........23-31 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
northwest 4 to 10 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........50-55 lower elevations...except 40-49
higher elevations.
* 24 HR Trend..........MISSING.
* Max Humidity...........58-73 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.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-85 lower elevations...except 67-77
higher elevations.
* Min Humidity...........25-40 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 5 to 11 mph. Local gusts up to
20 mph in the morning.
* Ridges/Upr Slopes....North winds 5 to 11 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ214-160000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Partly cloudy.
* Max Temperature........70-75 lower elevations...except 64-69
higher elevations.
* 24 HR Trend..........7 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........8 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
northwest 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........37-46.
* 24 HR Trend..........MISSING.
* Max Humidity...........71-79 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 8 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....North winds up to 8 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...2 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........72-77 lower elevations...except 65-71
higher elevations.
* Min Humidity...........23-30 percent lower elevations...except
26-41 percent high elevations.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph.
* Ridges/Upr Slopes....North winds up to 8 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
$$
CAZ215-160000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-87.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........North winds up to 8 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........54-60.
* 24 HR Trend..........MISSING.
* Max Humidity...........52-60 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
up to 20 mph in the evening.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-89.
* Min Humidity...........18-26 percent.
* 20-Foot Winds..........North winds 6 to 12 mph with local gusts
up to 25 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ216-160000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-87.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........56-61.
* 24 HR Trend..........MISSING.
* Max Humidity...........55-67 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........North winds 4 to 10 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-89.
* Min Humidity...........21-35 percent.
* 20-Foot Winds..........Northwest winds 6 to 12 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ217-160000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-87.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........24-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........53-58.
* 24 HR Trend..........MISSING.
* Max Humidity...........65-76 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........Southwest winds 5 to 11 mph. Local gusts
up to 20 mph in the evening.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-89.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph with local
gusts up to 20 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ218-160000-
Carquinez Strait and Delta-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........79-84.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........28-38 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 6 to 12 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........53-58.
* 24 HR Trend..........MISSING.
* Max Humidity...........71-76 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........Southwest winds 7 to 13 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-86.
* Min Humidity...........36-51 percent.
* 20-Foot Winds..........West winds 5 to 11 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ219-160000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........81-86.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear in the evening then becoming
mostly cloudy.
* Min Temperature........54-59.
* 24 HR Trend..........MISSING.
* Max Humidity...........63-71 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.FRIDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........82-87.
* Min Humidity...........24-39 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ263-279-160000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........78-83 lower elevations...except 62-72
higher elevations.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........22-27 percent lower elevations...except
30-42 percent high elevations.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 7 to 13 mph.
* Ridges/Upr Slopes....North winds 7 to 13 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........53-58 lower elevations...except 42-51
higher elevations.
* 24 HR Trend..........MISSING.
* Max Humidity...........51-65 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 9 to 15 mph.
* Ridges/Upr Slopes....Northwest winds 9 to 15 mph with local gusts
up to 30 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........79-84 lower elevations...except 63-73
higher elevations.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 8 to 14 mph.
* Ridges/Upr Slopes....North winds 8 to 14 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ266-160000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........76-81 lower elevations...except 70-76
higher elevations.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........21-31 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 8 mph.
* Ridges/Upr Slopes....West winds up to 8 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........51-58.
* 24 HR Trend..........MISSING.
* Max Humidity...........52-60 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 7 mph.
* Ridges/Upr Slopes....North winds up to 7 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........78-83 lower elevations...except 72-78
higher elevations.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ220-267-160000-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........76-81 lower elevations...except 71-76
higher elevations.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........29-35 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph in the afternoon.
* Ridges/Upr Slopes....South winds up to 7 mph shifting to the west
4 to 9 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then becoming
mostly cloudy.
* Min Temperature........52-58.
* 24 HR Trend..........MISSING.
* Max Humidity...........58-69 percent.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........78-83 lower elevations...except 73-78
higher elevations.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
$$
CAZ268-160000-
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 Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........63-70 lower elevations...except 56-64
higher elevations.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........28-41 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 9 mph shifting to the
west 5 to 11 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds 4 to 9 mph shifting to the
west 6 to 12 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........40-48 lower elevations...except 35-44
higher elevations.
* 24 HR Trend..........MISSING.
* Max Humidity...........59-74 percent...except 73-82 percent in
the high mountain valleys.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 4 to 9 mph shifting to the
northeast up to 8 mph after midnight.
* Ridges/Upr Slopes....West winds 6 to 12 mph shifting to the
northeast 4 to 9 mph after midnight.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........66-72 lower elevations...except 58-66
higher elevations.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 9 mph shifting to the
west in the afternoon.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
west 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
$$
CAZ221-269-160000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Thu May 15 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........66-71 lower elevations...except 54-64
higher elevations.
* 24 HR Trend..........7 degrees warmer.
* Min Humidity...........35-44 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 7 mph shifting to the
west 4 to 10 mph in the afternoon.
* Ridges/Upr Slopes....Southwest winds 6 to 12 mph. Local gusts up
to 25 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature........48-54 lower elevations...except 35-45
higher elevations.
* 24 HR Trend..........MISSING.
* Max Humidity...........55-68 percent lower elevations...except
65-80 percent high elevations.
* 24 HR Trend..........MISSING.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds 6 to 12 mph with local gusts up
to 25 mph shifting to the southeast up to 7 mph after midnight.
* CWR....................0 percent.
* CHANCE OF THUNDER...1 percent.
.FRIDAY...
* Sky/Weather............Mostly cloudy early in the morning then
clearing.
* Max Temperature........68-74 lower elevations...except 55-65
higher elevations.
* Min Humidity...........38-53 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph in the afternoon.
* Ridges/Upr Slopes....Southeast winds up to 7 mph shifting to the
west 5 to 11 mph in the afternoon.
* CWR....................0 percent.
* CHANCE OF THUNDER...3 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.FRIDAY NIGHT...Mostly cloudy. Lows 42 to 51. West winds 8 to
18 mph.
.SATURDAY...Partly cloudy with a chance of showers. Highs 56 to
66. Northwest winds 10 to 20 mph.
.SATURDAY NIGHT...Colder. Mostly clear. Lows 35 to 44. Northwest
winds 10 to 20 mph.
.SUNDAY...Sunny. Highs 57 to 67. North winds 8 to 18 mph.
.SUNDAY NIGHT...Clear. Lows 36 to 46. North winds 8 to 18 mph.
.MONDAY...Warmer, sunny. Highs 69 to 79. North winds 5 to 15 mph.
.MONDAY NIGHT...Clear. Lows 43 to 53. Northwest winds 5 to
15 mph.
...Northern Sierra and Lassen Park
.FRIDAY NIGHT...Mostly cloudy. Lows 45 to 51. South winds up to
10 mph.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Highs 55 to 63. Southwest winds up to
13 mph.
.SATURDAY NIGHT...Colder. Partly cloudy with a slight chance of
showers. Lows 35 to 44. Northwest winds up to 13 mph.
.SUNDAY...Mostly sunny. Highs 58 to 66. Northwest winds up to
13 mph.
.SUNDAY NIGHT...Clear. Lows 37 to 47. Northeast winds 5 to
10 mph.
.MONDAY...Warmer, sunny. Highs 69 to 77. North winds 5 to 10 mph.
.MONDAY NIGHT...Clear. Lows 43 to 53. Northeast winds up to
10 mph.
...Sierra Nevada Foothills
.FRIDAY NIGHT...Partly cloudy. Lows 52 to 57. Southeast winds up
to 10 mph.
.SATURDAY...Mostly cloudy with a chance of showers. Highs 64 to
71. Southwest winds up to 13 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 45 to 50. North winds up to 13 mph.
.SUNDAY...Mostly sunny. Highs 67 to 74. Northwest winds up to
13 mph.
.SUNDAY NIGHT...Clear. Lows 48 to 53. North winds 5 to 15 mph.
.MONDAY...Warmer, sunny. Highs 78 to 84. Northwest winds 5 to
10 mph.
.MONDAY NIGHT...Clear. Lows 53 to 58. Northeast winds up to
10 mph.
...Central Valley and Delta
.FRIDAY NIGHT...Partly cloudy. Lows 54 to 59. Southwest winds
5 to 15 mph.
.SATURDAY...Mostly sunny. Highs 76 to 81. Southwest winds 8 to
18 mph.
.SATURDAY NIGHT...Mostly clear. Lows 50 to 55. West winds 10 to
20 mph.
.SUNDAY...Sunny. Highs 79 to 84. Northwest winds 10 to 20 mph.
.SUNDAY NIGHT...Clear. Lows 53 to 59. Northwest winds 10 to
15 mph.
.MONDAY...Warmer, sunny. Highs 88 to 93. Northwest winds 10 to
20 mph.
.MONDAY NIGHT...Clear. Lows 57 to 62. Northwest winds 5 to
10 mph.
$$