FNUS73 KUNR 221513
FWSUNR

SPOT FORECAST FOR COAL CANYON...SD-BKF
NATIONAL WEATHER SERVICE RAPID CITY SD
913 AM MDT MON AUG 22 2011

FORECAST IS BASED ON REQUEST TIME OF 0845 MDT ON AUGUST 22.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...IT WILL BE HOT TODAY WITH VERY LOW RELATIVE HUMIDITY.
THE HIGH TEMPERATURE WILL BE AROUND 94 WITH A MINIMUM RELATIVE HUMIDITY
AROUND 15 PERCENT. VARIABLE WINDS OF 5 TO 10 MPH WILL BECOME TERRAIN
DOMINATED THIS AFTERNOON WITH UPSLOPE/UPVALLEY WINDS. ISOLATED
THUNDERSTORMS ARE POSSIBLE OVER THE BLACK HILLS...EAST OF THE FIRE
AREA. IF THUNDERSTORMS DO DEVELOP...OUTFLOW WINDS FROM THE THUNDERSTORMS
MAY AFFECT THE FIRE AREA.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........AROUND 15 PERCENT.
WIND (20 FT)........VARIABLE WINDS 5 TO 10 MPH BECOMING TERRAIN
                    DOMINATED WITH UPSLOPE/UPVALLEY WINDS.
CWR.................0 PERCENT.
LAL.................2.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......11300 TO 12300 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 65.
MAX HUMIDITY........AROUND 60 PERCENT.
WIND (20 FT)........VARIABLE WINDS 4 TO 8 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........AROUND 15 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH SHIFTING TO THE
                    NORTHWEST 10 TO 16 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......13900 TO 14900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....EXCELLENT.

$$
FORECASTER...NWS
REQUESTED BY...SD-BKF
TYPE OF REQUEST...WILDFIRE
.TAG 20110822.COALC.01/UNR