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000
FNUS73 KUNR 211909
FWSUNR

Spot Forecast for Schenk Canyon Rx...USFS
National Weather Service Rapid City SD
109 PM MDT Sun Apr 21 2024

Forecast is based on ignition time of 0000 MDT on April 23.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A weak disturbance will bring gusty winds to the
fire area Monday night and early Tuesday morning. High pressure
will build into the region Tuesday bringing rapidly decreasing
winds. Winds should become terrain driven late Tuesday afternoon
and evening and then become southerly into Wednesday. Some low
coverage cumulus clouds are possible Tuesday. Return flow begins
Tuesday night into Wednesday as winds become southerly.

.MONDAY NIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....Around 35.
Max humidity........56 percent.
Wind (20 ft)........Northwest winds 10 to 20 mph with gusts
                    around 25 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......600 to 1100 ft agl.
Transport winds.....Northwest around 25 mph.
Smoke dispersal.....Poor.

.TUESDAY...

Sky/weather.........Partly cloudy early (25-35 percent), then
                    mostly sunny (less than 20 percent outside
                    of any cumulus development) by afternoon.
Max temperature.....Around 58.
Min humidity........23 percent.
Wind (20 ft)........Through 0900 northwest winds 10 to 20 mph
                    with gusts around 25 mph. 0900 to 1200
                    northwest winds 8 to 16 mph. Afternoon winds
                    northwest 6 to 12 mph becoming terrain
                    driven late.
CWR.................0 percent.
LAL.................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......7400 to 7900 ft agl.
Transport winds.....Northwest around 30 mph decreasing to around 20
                    mph in the afternoon.
Smoke dispersal.....Very good.

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy (30-50 percent).
Min temperature.....Around 40.
Max humidity........64 percent.
Wind (20 ft)........Terrain driven less than 10 mph becoming
                    southeast 5 to 15 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....Southeast 15 to 20 mph.
Smoke dispersal.....Poor.

.WEDNESDAY...

Sky/weather.........Mostly sunny (20-40 percent).
Max temperature.....Around 67.
Min humidity........28 percent.
Wind (20 ft)........Southwest winds 10 to 15 mph with gusts around
                    20 mph.
CWR.................0.
LAL.................1.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......6000 to 7000 ft agl.
Transport winds.....Southeast around 20 mph in the morning
                    becoming northwest in the afternoon.
Smoke dispersal.....Very good.

$$
Forecaster...EH
Requested by...Josh Behlings
Type of request...PRESCRIBED
.TAG 2411617.0/UNR
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL joshua.behlings@usda.gov