621
FNUS76 KSTO 091925
FWSSTO

Spot Forecast for Royal Fire...Tahoe National Forest
National Weather Service Sacramento CA
1225 PM PDT Tue Jul 9 2024

Forecast is based on forecast start time of 0800 PDT on July 10.
If conditions become unrepresentative...contact the National Weather
Service.

...HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT FRIDAY...

.DISCUSSION...
Hot and very dry conditions continue over the wildfire early this week.
Gusty west-southwesterly winds in the afternoon 15 to 25 mph, returning
to light (generally less than 5 mph) downslope overnight. Daytime RH
will be in the low to mid teens with poor overnight recovery in the mid
30s to mid 40s. Brief warm up Wednesday-Friday before much cooler
temperatures in the upper 80s to low 90s by the weekend.

.WEDNESDAY...

Sky/weather.........Sunny. Haze and areas of smoke in the
                    afternoon.
Max temperature.....90-97.
Min humidity........11-15 percent.
Wind (20 ft)........
 Slope/valley.......East winds less than 5 mph, becoming west 3 to 8 mph
with gusts to around 20 mph in the afternoon.
 Ridgetop...........South to southwest around 12 mph.
Mixing height.......Rising to 6600 ft AGL.
Transport winds.....South to southwest around 12 mph.
CWR.................0 percent.
LAL.................1.

.WEDNESDAY NIGHT...

Sky/weather.........Clear. Areas of smoke in the evening. Haze
                    through the night.
Min temperature.....59-65.
Max humidity........37-44 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 8 mph with gusts to around 20 mph
in the evening becoming east at less than 5 mph.
 Ridgetop...........East around 6 mph.
Mixing height.......Lowering to 1000 ft AGL.
Transport winds.....East around 6 mph.
CWR.................0 percent.
LAL.................1.

.THURSDAY...

Sky/weather.........Sunny.
Max temperature.....93-99.
Min humidity........11-15 percent.
Wind (20 ft)........
 Slope/valley.......East winds less than 5 mph, becoming southwest 3 to
8 mph with gusts to around 20 mph in the afternoon.
 Ridgetop...........Southwest around 20 mph.
Mixing height.......Rising to 7700 ft AGL, then increasing again to
11000 ft AGL late in the afternoon.
Transport winds.....Southwest around 20 mph.
CWR.................0 percent.
LAL.................1.

$$
Forecaster...SP
Requested by...Rita Clipperton
Type of request...WILDFIRE
.TAG 2417682.0/STO
.DELDT 07/09/24
.FormatterVersion 2.0.0
.EMAIL rita.clipperton@usda.gov