Suppression Forecast
Issued by NWS Rapid City, SD

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000
FNUS73 KUNR 221600
FWSUNR

SPOT FORECAST FOR PORCUPINE RX...BUREAU OF INDIAN AFFAIRS
NATIONAL WEATHER SERVICE RAPID CITY SD
1000 AM MDT MON SEP 22 2014

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON SEPTEMBER 22.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...
A STORM SYSTEM WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO
THE AREA...ESPECIALLY THIS AFTENOON AND EARLY EVENING. SOUTH WINDS
WILL BE GUSTY TODAY...WITH SUSTAINED WINDS TO 25 MPH AND GUSTS TO
35 MPH...AND POSSIBLY STRONGER WINDS NEAR STORMS. SMOKE DISPERSAL
WILL BE POOR THROUGH TONIGHT...EXCEPT FOR A FEW HOURS OF GOOD THIS
AFTERNOON.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
                    SHOWERS AND THUNDERSTORMS LATE IN THE
                    AFTERNOON.
TEMPERATURE.........76 AT IGNITION...MAX 83.
RH..................31 PERCENT AT IGNITION...MIN 26 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 22 MPH AT IGNITION. SOUTH
                    WINDS 22 TO 25 MPH WITH GUSTS AROUND 35 MPH
                    IN THE AFTERNOON.
CWR.................14 PERCENT.
LAL.................1 UNTIL 1200...THEN 2 UNTIL 1500...THEN 3.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600 TO 3100 FT AGL.
TRANSPORT WINDS.....SOUTH 18 TO 25 MPH INCREASING TO 26 TO 35 MPH
                    IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....GOOD LATE IN THE MORNING...THEN DECREASING TO
                    POOR LATE IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS LATE IN THE EVENING.
TEMPERATURE.........MIN 55.
RH..................MAX 93 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 20 MPH.
CWR.................16 PERCENT.
LAL.................3 UNTIL 2400...THEN 2 UNTIL 0500...THEN 1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 24 MPH DECREASING TO 13 TO 14 MPH
                    EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
TEMPERATURE.........MAX 83.
RH..................MIN 35 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 7 TO 12 MPH.
CWR.................11 PERCENT.
LAL.................1 UNTIL 1200...THEN 2.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5900 TO 6400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
SMOKE DISPERSAL.....FAIR.

$$
FORECASTER...SS
REQUESTED BY...TAMARA RANDALL
TYPE OF REQUEST...PRESCRIBED
.TAG 20140922.PORCU.01/UNR






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