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000
FNUS73 KUNR 211408
FWSUNR

Spot Forecast for Manderson Rx...SD=PRA
National Weather Service Rapid City SD
808 AM MDT Sun Apr 21 2024

Forecast is based on ignition time of 0900 MDT on April 21.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Southerly winds will increase this morning with
gusts increasing to 25 mph this afternoon and 35 mph tonight. A
fast moving cold front will move through late tonight, bringing
gusty northwest winds Monday. Minimum relative humidities will be
around 20 percent today and Monday. The combination of gusty winds
and dry relative humidities will lead to elevated fire weather
conditions through Monday.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 65.
Min humidity........20 percent.
Wind (20 ft)........South winds increasing to 10 to 20 mph
                    with gusts around 25 mph by afternoon.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......5400 to 5900 ft agl.
Transport winds.....Southwest 20 to 25 mph.
Smoke dispersal.....Very good.

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent).
Min temperature.....Around 42.
Max humidity........68 percent.
Wind (20 ft)........South winds 15 to 25 mph with gusts to around
                    35 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......500 to 1000 ft agl.
Transport winds.....Southwest 30 to 35 mph.
Smoke dispersal.....Poor.

.MONDAY...

Sky/weather.........Mostly sunny (30-40 percent).
                    Cold front passage around 600am.
Max temperature.....Around 63.
Min humidity........20 percent.
Wind (20 ft)........Northwest winds 15 to 20 mph with gusts to
                    around 25 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......5900 to 6400 ft agl.
Transport winds.....Northwest around 30 mph.
Smoke dispersal.....Excellent.

$$
Forecaster...EH
Requested by...Fuels Spc
Type of request...PRESCRIBED
.TAG 2411591.0/UNR
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL leland.black@bia.gov