Spot Forecast
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
485
FNUS76 KSTO 120227
FWSSTO
Spot Forecast for Big Hill...USFS
National Weather Service Sacramento CA
727 PM PDT Mon May 11 2026
Forecast is based on ignition time of 0600 PDT on May 12.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Slightly cooler temperatures on Tuesday with an increase in wind speeds
and gusts in the forecast. Nearby RAWS station Denten Creek observed low
RH values in the lower teens and temps above 80 on Monday, these conditions
are expected to improve but winds are forecast to gust up around 20 to
25 mph on Tuesday; with gusts of 25 to 30 mph on Wednesday. A weak wave
of energy is forecast to move through portions of the Pacific NW
Wednesday, which will introduce a slight chance (10%) of an afternoon/
evening shower and thunderstorm. Recent forecast runs have slightly
lowered the chances, however the best chances for precipitation remain
north of the burn site.
Conditions are expected to improve Thursday and Friday, with high
pressure building in the Pacific. Return to mostly diurnal/terrain
driven winds and daytime humidity values in the mid to upper 20s,
and high temperatures in the low 70s are forecast Thursday through
Saturday morning.
.TUESDAY...
Sky/weather.........Sunny.
Max temperature.....72-76.
Min humidity........28-32 percent.
Wind (20 ft)........
Slope/valley.......Light winds becoming south 5 to 13 mph with
gusts to around 24 mph in the late morning and
early afternoon, then becoming 5 to 12 mph with
gusts to around 25 mph late in the afternoon.
Ridgetop...........South 8 to 14 mph increasing to 20 to 29 mph
late in the morning.
Mixing height.......6800 ft AGL.
Transport winds.....South 8 to 29 mph decreasing to around 14 mph
early in the morning, then increasing to 20 to
29 mph late in the morning.
CWR.................0 percent.
Chance of thunder...0 percent.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR MCR CLR CLR CLR CLR CLR MCR CLR MCR MCR MCR
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............52 55 57 58 64 68 71 72 72 73 74 72
RH..............50 48 47 46 41 34 31 30 30 30 29 30
SL/VL wind dir..SE SE SE SE S S S S S S S SW
SL/VL wind spd..3 3 3 7 13 13 13 13 12 12 12 10
SL/VL wind gust.8 9 10 14 21 24 24 24 24 25 25 24
Ridge wind dir..SE SE S S S S S S S S S S
Ridge wind spd..8 8 14 14 14 28 28 28 29 29 29 20
Mix hgt (kft)...0.5 0.5 2.3 2.3 2.3 6.8 6.8 6.8 6.5 6.5 6.5 3.6
Transp wind dir.SE SE S S S S S S S S S S
Transp wind spd.8 8 14 14 14 28 28 28 29 29 29 20
.TUESDAY NIGHT...
Sky/weather.........Mostly clear.
Min temperature.....47-51.
Max humidity........44-48 percent.
Wind (20 ft)........
Slope/valley.......South winds up to 10 mph. Gusts up to 24 mph
early in the evening.
Ridgetop...........South around 20 mph decreasing to 10 to 13 mph
early in the evening.
Mixing height.......500 ft AGL.
Transport winds.....South 10 to 20 mph.
CWR.................0 percent.
Chance of thunder...0 percent.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR MCR PC PC PC PC PC PC PC PC PC MCR
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............72 68 65 62 61 60 58 56 55 53 52 51
RH..............30 34 37 39 38 40 41 42 42 44 44 47
SL/VL wind dir..SW SW S S S S S S S S S S
SL/VL wind spd..10 10 6 6 6 5 5 5 7 7 7 7
SL/VL wind gust.24 24 15 15 15 12 12 12 14 14 14 14
Ridge wind dir..S S S S S S S S S S S S
Ridge wind spd..20 20 10 10 10 10 10 10 13 13 13 13
Mix hgt (kft)...3.6 3.6 0.7 0.7 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.S S S S S S S S S S S S
Transp wind spd.20 20 10 10 10 10 10 10 13 13 13 13
.WEDNESDAY...
Sky/weather.........Sunny. Slight chance of rain late in the
afternoon.
Max temperature.....60-64.
Min humidity........37-41 percent.
Wind (20 ft)........
Slope/valley.......Southwest winds 5 to 13 mph shifting to the
west 5 to 9 mph late in the afternoon.
Ridgetop...........South around 13 mph increasing to southwest 23
to 30 mph early in the morning, then shifting
to the west around 17 mph late in the
afternoon.
Mixing height.......4900 ft AGL.
Transport winds.....South around 13 mph increasing to southwest 23
to 30 mph early in the morning, then shifting
to the west around 17 mph late in the
afternoon.
CWR.................7 percent.
Chance of thunder...9 percent.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR PC
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 0 10 10 10 0
Temp............49 49 51 52 53 55 57 59 60 61 61 60
RH..............49 48 46 45 44 43 42 40 39 38 38 39
SL/VL wind dir..S S SW SW SW SW SW SW W W W W
SL/VL wind spd..7 7 12 12 12 13 13 13 9 9 9 7
SL/VL wind gust.14 14 17 17 17 23 23 23 18 18 18 16
Ridge wind dir..S S SW SW SW SW SW SW W W W W
Ridge wind spd..13 13 23 23 23 30 30 30 24 24 24 17
Mix hgt (kft)...0.5 0.5 2.7 2.7 2.7 4.3 4.3 4.3 4.9 4.9 4.9 4.5
Transp wind dir.S S SW SW SW SW SW SW W W W W
Transp wind spd.13 13 23 23 23 30 30 30 24 24 24 17
.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...
Mostly clear. Slight chance of rain. Lows in the lower 40s. Highs
in the lower 70s. Light winds.
.FRIDAY...
Clear. Lows in the mid 40s. Highs in the upper 60s. Light winds.
.SATURDAY...
Mostly clear. Lows in the lower 40s. Highs in the mid 60s.
Southwest winds around 6 mph.
.SUNDAY...
Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
.MONDAY...
Mostly clear. Lows in the lower 40s. Highs in the lower 70s.
$$
Forecaster...JW
Requested by...Chris Enriquez
Type of request...PRESCRIBED
.TAG 2612855.6/STO
.DELDT 05/12/26
.FormatterVersion 2.0.0
.EMAIL joseph.mcginn@usda.gov,christian.enriquez@usda.gov,casey.simoni@usda.gov