902
FNUS76 KSTO 020039
FWSSTO

Spot Forecast for Plumas TREX...US Forest Service
National Weather Service Sacramento CA
539 PM PDT Wed May 1 2024

Forecast is based on ignition time of 0000 PDT on May 02.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Warm and dry weather continues through Friday. Light north winds
with low humidity in the teens early this evening, with moderate
humidity recovery overnight. Winds will shift to westerly on
Thursday and increase through the day. Humidity will not be as low
as it was on Wednesday, dropping to only around 30%. Good recovery
is expected Thursday night, with southwesterly winds by Friday
afternoon. A pattern change is forecast for Friday night into the
weekend, with wetting rain likely and much cooler temperatures,
with light snow accumulations possible Saturday night.

.REST OF TONIGHT...

Sky/weather.........Clear.
Min temperature.....34-38.
Max humidity........59-63 percent.
Wind (20 ft)........
 Slope/valley.......West northwest winds 3 to 6 mph in the evening
                    becoming north 2 to 4 mph after midnight.
 Ridgetop...........Northwest 5 to 10 mph becoming north 3 to 6 mph
                    after midnight.
Mixing height.......Falling to 400 ft AGL.
Transport winds.....North 5 to 8 mph.
CWR.................0 percent.
LAL.................1.

TIME (PDT)      MIDNGT 2 AM   4 AM
Sky cover.......CLEAR  CLEAR  CLEAR
Weather cov.....
Weather type....NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0
LAL.............1      1      1
Temp............43     39     38
RH..............47     54     58
SL/VL wind......N 5    N 3    N 2
SL/VL wind gust.6      6      3
Mix hgt (ft)....500    400    400
Transport wind..N 8    N 7    N 7

.THURSDAY...

Sky/weather.........Sunny.
Max temperature.....65-69.
Min humidity........29-33 percent.
Wind (20 ft)........
 Slope/valley.......Light north winds becoming southwest 3 to 6 mph
                    late in the morning, then shifting to west
                    southwest 5 to 12 mph in the afternoon.
 Ridgetop...........Northwest 5 to 14 mph shifting to the west 13
                    to 15 mph late in the afternoon.
Mixing height.......6500 ft AGL. sunny then becoming
                    partly sunny
Transport winds.....North around 5 mph shifting to the northwest 5
                    to 14 mph in the morning and early afternoon,
                    then shifting to the west 13 to 15 mph late in
                    the afternoon.
CWR.................0 percent.
LAL.................1.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......MCLEAR MCLEAR CLEAR  MCLEAR PCLDY  MCLEAR
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............38     43     53     61     65     67
RH..............59     56     48     39     32     33
SL/VL
wind......      N 2    S 2    SW 5   WSW 7  WSW 12 W 12
SL/VL wind gust.  3      3     7      12    18     17
Mix hgt (ft)....400    2300   2300   6100   6500   6500
Transport wind..N 5    NW 9   NW 9   W 14   W 15   W 15

.THURSDAY NIGHT...

Sky/weather.........Mostly clear then becoming mostly cloudy.
Min temperature.....36-40.
Max humidity........85-89 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 9 mph in the evening
                    becoming light downslope.
 Ridgetop...........West 9 to 13 mph shifting to the northeast 7 to
                    9 mph late in the evening.
Mixing height.......400 ft AGL.
Transport winds.....West around 13 mph decreasing to 9 to 13 mph in
                    the evening, then shifting to the northeast 7
                    to 9 mph late in the evening.
CWR.................0 percent.
LAL.................1.

TIME (PDT)      6 PM      9 PM      MIDNGT    3 AM
Sky cover.......MCLEAR    MCLEAR    MCLEAR    MCLEAR
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
LAL.............1         1         1         1
Temp............65        53        45        40
RH..............37        59        75        85
SL/VL wind......W 9G18    NW 7G10   N 3G6     NE 3G6
Mix hgt (ft)....4900      900       500       700
Transport wind..W 13      W 9       N 7       NE 9

.FRIDAY...

Sky/weather.........Partly sunny then becoming partly cloudy
                    late afternoon.
Max temperature.....69-73.
Min humidity........27-31 percent.
Wind (20ft)........
 Slope/valley.......Light winds becoming southwest 5 to 12 mph
                    late in the afternoon.
 Ridgetop...........East 6 to 8 mph shifting to the southwest
                    7 to 14 mph late in the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....Northeast around 8 mph shifting to the
                    east 7 to 8 mph in the morning and
                    early afternoon, then shifting to the
                    southwest 7 to 14 mph late in the afternoon.
CWR.................0 percent.
LAL.................1.

TIME (PDT)      6 AM         10 AM        2 PM
Sky cover.......MCLDY        CLEAR        PCLDY
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............0            0            0
LAL.............1            1            1
Temp............39           54           69
RH..............84           51           30
SL/VL wind......NE 3G5       E 2G5        SW 6G10
Mix hgt (ft)....400          1400         7000
Transport wind..NE 8         E 8          SW 7

$$
Forecaster...EK
Requested by...Michael Sprinkle
Type of request...PRESCRIBED
.TAG 2412669.3/STO
.DELDT 05/01/24
.FormatterVersion 2.0.0
.EMAIL michael.sprinkle@usda.gov