Spot Forecast
Issued by NWS Sacramento, CA

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155
FNUS76 KSTO 061006
FWSSTO

Spot Forecast for Green...usfs
National Weather Service Sacramento CA
306 AM PDT Sun Jul 6 2025

Forecast is based on forecast start time of 0312 PDT on July 06.
If conditions become unrepresentative...contact the National Weather
Service.

...Elevated fire weather conditions Monday in the northern
Sacramento Valley due to low daytime humidity values and southerly
wind gusts 15-25 mph...

.DISCUSSION...
Warmer and drier conditions are expected today with a 20-40%
chance of triple digit high temperatures. Winds will be similar
compared to yesterday, with breezy northeasterly ridgetop winds in
the morning, shifting to the southwest/upslope in the afternoon
hours. Minimum relative humidities will be in the teens followed
by poor overnight recoveries. On Monday, increased late day
southerly winds gusting 15-20 mph and continued warm, dry weather
will lead to elevated fire weather conditions for portions of the
northern Sacramento Valley and surrounding lower foothills. There
is also a less than 10% chance for isolated mountain thunderstorms
in the afternoon and evening hours, but confidence is low.
Temperatures cool off slightly on Tuesday, before a warming and
drying trend resumes.


.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....96-100.
Min humidity........15-19 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest up to 5 mph late
                    in the afternoon.
 Ridgetop...........Northeast 6 to 12 mph shifting to the southeast
                    around 3 mph late in the morning, then shifting
                    to the southwest 6 to 7 mph late in the
                    afternoon.
Mixing height.......7700 ft AGL.
Transport winds.....Northeast around 6 mph increasing to 6 to 12
                    mph early in the morning, then shifting to the
                    southeast around 3 mph late in the morning
                    shifting to the southwest 6 to 7 mph late in
                    the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0   0   0   0
Temp............66  65  65  64  66  71  77  82  87  91  93  95  96  97  96
RH..............37  37  38  40  41  38  33  30  26  23  20  19  18  17  17
SL/VL wind dir..N   N   N   N   N   NE  NE  NE  NE  SW  SW  SW  SW  SW  SW
SL/VL wind spd..2   2   2   3   3   3   2   2   2   2   3   3   5   5   5
SL/VL wind gust.6   6   7   8   8   9   8   8   7   8   10  10  12  12  12
Ridge wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  E   E
Ridge wind spd..15  15  15  15  15  15  15  15  15  15  15  15  10  10  5
Mix hgt (kft)...1.1 1.1 1.1 1.1 1.1 2.5 2.5 2.5 6.0 6.0 6.0 7.7 7.7 7.7 5.2
Transp wind dir.NE  NE  N   N   N   NE  NE  NE  SE  SE  SE  S   S   S   SW
Transp wind spd.6   6   12  12  12  10  10  10  3   3   3   6   6   6   7

.TONIGHT...

Sky/weather.........Clear.
Min temperature.....64-68.
Max humidity........37-41 percent.
Wind (20 ft)........
 Slope/valley.......Light winds.
 Ridgetop...........South 7 to 8 mph shifting to the west around 2
                    mph late in the evening, then shifting to the
                    northeast 5 to 8 mph overnight.
Mixing height.......1100 ft AGL.
Transport winds.....Southwest around 7 mph shifting to the south 7
                    to 8 mph in the evening, then shifting to the
                    west around 2 mph late in the evening shifting
                    to the northeast 5 to 8 mph overnight.
CWR.................0 percent.
Chance of thunder...0 percent.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR MCR CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............95  94  90  85  82  78  75  73  72  70  69  69
RH..............17  19  21  24  28  30  33  35  36  38  39  40
SL/VL wind dir..SW  SW  S   S   SW  N   NE  NE  NE  NE  NE  NE
SL/VL wind spd..3   2   2   2   2   2   2   2   2   2   2   2
SL/VL wind gust.10  8   8   7   5   5   5   5   5   5   5   5
Ridge wind dir..E   NE  NE  NE  E   E   E   E   E   E   E   E
Ridge wind spd..5   5   10  10  15  15  15  15  15  15  15  15
Mix hgt (kft)...5.2 5.2 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.SW  SW  S   S   S   W   W   W   NE  NE  NE  NE
Transp wind spd.7   7   8   8   8   2   2   2   5   5   5   8

.MONDAY...

Sky/weather.........Sunny.
Max temperature.....94-98.
Min humidity........16-20 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming southwest 5 to 6 mph late
                    in the afternoon with gusts around 15 mph.
 Ridgetop...........Northeast 7 to 8 mph shifting to the southwest
                    5 to 9 mph late in the morning, then shifting
                    to the south around 15 mph late in the
                    afternoon.
Mixing height.......5700 ft AGL.
Transport winds.....Northeast 7 to 8 mph shifting to the southwest
                    5 to 9 mph late in the morning, then shifting
                    to the south around 15 mph late in the
                    afternoon.
CWR.................1 percent.
Chance of thunder...2 percent.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............67  69  74  79  83  86  89  91  92  93  94  94
RH..............42  42  38  36  34  31  28  25  23  21  19  18
SL/VL wind dir..NE  NE  NE  NE  NE  SW  SW  SW  SW  SW  SW  SW
SL/VL wind spd..2   2   2   2   2   2   2   2   6   6   6   6
SL/VL wind gust.5   5   5   5   5   7   7   7   14  14  14  15
Ridge wind dir..E   SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Ridge wind spd..20  20  20  20  20  20  20  20  15  15  10  5
Mix hgt (kft)...1.1 1.1 1.8 1.8 1.8 4.1 4.1 4.1 5.1 5.1 5.1 5.7
Transp wind dir.NE  NE  NE  NE  NE  S   S   S   SW  SW  SW  S
Transp wind spd.8   8   7   7   7   5   5   5   9   9   9   15

$$
Forecaster...KF
Requested by...Justin Regelin
Type of request...WILDFIRE
.TAG 2517291.2/STO
.DELDT 07/06/25
.FormatterVersion 2.0.0
.EMAIL justin.regelin@usda.gov