902
FNUS76 KMFR 190453
FWSMFR

Spot Forecast for Castle...USFS
National Weather Service MEDFORD OR
953 PM PDT Tue Aug 18 2026

Forecast is based on forecast start time of 0700 PDT on August 19.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...The Castle fire will see some light easterly drainage
winds in the morning before winds turn westerly in the afternoon.
Temperatures will remain warm and trend warmer into Thursday. RHs
will also trend higher further into the week as more moisture moves
in from the south. The chance of showers or thunderstorms remains
around 5% on Friday.

Thanks for the weather observations! We adjusted the temperatures
and RHs based on the submitted weather observations.

.WEDNESDAY...

Sky/weather.........Sunny.
Chance of lightning.0 percent.
Max temperature.....86-90.
Min humidity........24-29 percent.
Eye level winds.....Light east winds in the morning turning
west winds around 2 mph in the afternoon.
Wind (20 ft)........Light east winds in the morning turning
west winds 3 to 5 mph in the afternoon.
Mixing height.......4800 ft AGL.
Transport winds.....Northwest around 9 mph.
CWR.................0 percent.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear.
Chance of lightning.0 percent.
Min temperature.....55-60.
Max humidity........70-79 percent.
Eye level winds.....East winds around 2 mph in the evening becoming
                    light.
Wind (20 ft)........East winds around 5 mph in the evening becoming
                    light.
Mixing height.......200 ft AGL.
Transport winds.....Northeast around 6 mph.
CWR.................0 percent.

.THURSDAY...

Sky/weather.........Sunny.
Chance of lightning.0 percent.
Max temperature.....91-94.
Min humidity........27-33 percent.
Eye level winds.....Light east winds turning west around 1 mph.
Wind (20 ft)........Light east winds turning west 2 to 3 mph.
Mixing height.......6700 ft AGL.
Transport winds.....South around 7 mph.
CWR.................0 percent.

$$
Forecaster...SMITH
Requested by...Marissa Duarte
Type of request...WILDFIRE
.TAG 2619591.4/MFR
.DELDT 08/19/26
.FormatterVersion 2.0.0
.EMAIL marissa.duarte@usda.gov