Suppression Forecast
Issued by NWS Rapid City, SD

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000
FNUS73 KUNR 251440
FWSUNR

Spot Forecast for Angostura RX...State
National Weather Service Rapid City SD
840 AM MDT Wed Apr 25 2018

Forecast is based on ignition time of 1400 MDT on April 25.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Dry and mild conditions expected today with breezy
southwest winds and relative humidity dropping to around 20 percent.
A cold front will move through after 9 pm shifting the winds to the
north with some gusts around 30 mph.

.REST OF TODAY...

Sky/weather.........Sunny.
Max temperature.....Around 69.
Min humidity........20 percent.
Wind (20 ft)........Southwest 10 to 20 mph. A few gusts to 25 mph.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume dominated
                    fire growth.
Mixing height.......4400 to 4900 ft agl.
Transport winds.....Southwest around 20 mph.
Smoke dispersal.....Good.

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Slight chance of rain showers after midnight.
Min temperature.....Around 39.
Max humidity........70 percent.
Wind (20 ft)........Southwest 10 to 20 mph early, shifting to the
                    North 10 to 20 mph later in the evening
                    with gusts to 30 mph.
CWR.................5 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......100 to 600 ft agl.
Transport winds.....North around 15 mph.
Smoke dispersal.....Poor.

.THURSDAY...

Sky/weather.........Mostly sunny.
Max temperature.....Around 59.
Min humidity........30 percent.
Wind (20 ft)........North 10 to 15 mph. Gusts to around 20 mph in
                    the morning.
CWR.................0 percent.
LAL.................1.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......5800 to 6300 ft agl.
Transport winds.....North around 20 mph.
Smoke dispersal.....Very good.

$$
Forecaster...JJ
Requested by...Jeff Wiedow
Type of request...PRESCRIBED
.TAG 1807670.1/UNR
.EMAIL Jeff.wiedow@state.sd.us



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