Spot Forecast
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
656
FNUS76 KSTO 092242
FWSSTO
Spot Forecast for NEU NCORX Fire...Nevada County Resource Conservation District
National Weather Service Sacramento CA
342 PM PDT Thu Oct 9 2025
Forecast is based on ignition time of 2000 PDT on October 09.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
An inversion will set up around 2000 this evening as winds decrease
and excellent overnight recoveries are forecast, nearing 100% by
early Friday morning. A weak system moving through the area will bring
light showers to the burn area Friday and Saturday with a 40% chance of
0.10" of rain through that period and a slight (10%) chance of isolated
thunderstorms in the vicinity. Drier weather is expected on Sunday
before a colder, wetter storm moves in early to mid next week with a
45% chance of 1 inch of rain from Monday-Tuesday night. Periodically
breezy winds are forecast each afternoon, with gusts to 15 mph at times.
.REST OF TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Min temperature.....45-49.
Max humidity........98-100 percent.
Wind (20 ft)........
Slope/valley.......Light winds.
Ridgetop...........South 5 to 9 mph.
Mixing height.......500 ft AGL.
Transport winds.....South 5 to 9 mph.
CWR.................0 percent.
Chance of thunder...0 percent.
TIME (PDT) 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky cover.......MCLEAR MCLEAR PCLDY PCLDY MCLDY
CWR.............0 0 0 0 0
Chc of thdr (%).0 0 0 0 0
Temp............58 55 53 52 50
RH..............75 86 95 96 96
SL/VL wind......S 2 SE 2 E 2 SE 2 SE 2
SL/VL wind gust.5 3 3 5 6
Ridgetop wind...S 5 SE 5 E 5 SE 6 SE 6
Mix hgt (ft)....500 500 500 500 500
Transport wind..S 5 S 5 S 6 S 7 S 7
.FRIDAY...
Sky/weather.........Partly sunny. Slight chance
of rain showers in the afternoon.
Max temperature.....64-68.
Min humidity........49-53 percent.
Wind (20 ft)........
Slope/valley.......Light winds in the morning becoming south up to 6 mph late
morning, then shifting to the southwest 5 to 7
mph in the afternoon with gusts to 15 mph.
Ridgetop...........Southerly 9 to 15 mph.
Mixing height.......Increasing to 4700 ft AGL.
Transport winds.....South 9 to 15 mph.
CWR.................5 percent.
Chance of thunder...5 percent.
TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky cover.......MCLDY MCLDY MCLDY PCLDY MCLEAR CLEAR
CWR.............0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0
Temp............49 50 56 61 64 64
RH..............100 100 85 69 55 54
SL/VL wind......SE 3 SE 5 S 6 SW 6 SW 7 SW 6
SL/VL wind gust.8 9 12 14 15 15
Ridgetop wind...SE 6 SE 6 S 6 SW 8 SW 10 SW 11
Mix hgt (ft)....800 2000 2000 4000 4700 4700
Transport wind..S 9 S 12 S 12 S 15 S 14 S 14
.FRIDAY NIGHT...
Sky/weather.........Increasing clouds with a chance of rain showers.
Min temperature.....44-48.
Max humidity........98-100 percent.
Wind (20 ft)........
Slope/valley.......Southwest winds 5 to 6 mph with gusts to 15 mph early in the evening
becoming light overnight.
Ridgetop...........Southwest 5 to 10 mph in the evening shifting to the southeast
around 6 mph overnight.
Mixing height.......Decreasing to 500 ft AGL.
Transport winds.....Southwest around 9 mph shifting to the
southeast around 6 mph late in the evening.
CWR.................15 percent.
Chance of thunder...5 percent.
TIME (PDT) 6 PM 9 PM MIDNGT 3 AM
Sky cover.......PCLDY MCLDY MCLDY MCLDY
CWR.............10 10 20 20
Chc of thdr (%).0 10 0 10
Temp............62 55 52 50
RH..............59 83 95 100
SL/VL wind......SW 6G14 S 3G9 S 2G7 SE 2G3
Ridgetop wind...SW 11 SW 8 S 7 SW 6
Mix hgt (ft)....2700 600 500 600
Transport wind..SW 9 S 5 SE 6 SE 6
.SATURDAY...
Sky/weather.........Mostly sunny. Slight chance of rain showers in
the morning.
Max temperature.....58-62.
Min humidity........59-63 percent.
Wind (20 ft)........
Slope/valley.......Light winds in the morning becoming southwest to west 5 to 6 mph late in
the afternoon with gusts to 12 mph.
Ridgetop...........South 6 to 8 mph shifting to the west 9 to
10 mph late in the afternoon.
Mixing height.......Increasing to 5400 ft AGL.
Transport winds.....Southeast around 6 mph shifting to the
southwest 9 to 10 mph late in the afternoon.
CWR.................5 percent.
Chance of thunder...10 percent.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC MC MC MC MC PC PC PC PC PC PC MCR
CWR.............10 10 10 10 10 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 10 10 10 10 10 10 0
Temp............48 47 47 49 52 54 56 57 58 59 59 58
RH..............100 100 99 97 94 90 83 75 69 65 64 65
SL/VL wind dir..SE SE S S S SW SW SW W W W W
SL/VL wind spd..2 2 2 2 2 3 3 3 6 6 6 3
SL/VL wind gust.3 3 5 5 5 8 8 8 12 12 12 9
Ridge wind dir..SE SE S S S SW SW SW W W W W
Ridge wind spd..5 5 5 5 5 8 8 8 12 12 12 9
Mix hgt (kft)...0.8 0.8 1.1 1.1 1.1 3.7 3.7 3.7 5.4 5.4 5.4 5.1
Transp wind dir.SE SE S S S S S S SW SW SW W
Transp wind spd.6 6 6 6 6 8 8 8 9 9 9 10
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Clear. Lows in the lower 40s. Highs in the upper 60s. Light
winds. Min RH 43-48 percent.
.COLUMBUS DAY...
Mostly cloudy. Chance of showers. Lows in the mid 40s. Highs in
the upper 50s. Southeast winds around 5 mph. Min RH 70-75 percent.
.TUESDAY...
Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 50s. Light
winds. Min RH 85-90 percent.
$$
Forecaster...KH
Requested by...Nate Alcorn
Type of request...PRESCRIBED
.TAG 2522956.3/STO
.DELDT 10/09/25
.FormatterVersion 2.0.0
.EMAIL nate.alcorn@ncrcd.org