FNUS73 KUNR 260248
FWSUNR

SPOT FORECAST FOR MARSHMALLOW CANYON...GREAT PLAINS DISPATCH
NATIONAL WEATHER SERVICE RAPID CITY SD
848 PM MDT THU AUG 25 2011

FORECAST IS BASED ON REQUEST TIME OF 2027 MDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

THIS FORECAST IS BASED ON AN ESTIMATED DEWPOINT OF 55 DEGREES AT
8 PM MDT. YOUR CALCULATED DEWPOINT OF 68 APPEARS MUCH TOO HIGH
BASED ON SURROUNDING OBSERVATION SITES.

.DISCUSSION...MOSTLY CLOUDY SKIES EXPECTED OVERNIGHT WITH AN
ISOLATED THUNDERSTORM POSSIBLE. WINDS WILL BE RELATIVELY LIGHT AND
TERRAIN DOMINATED.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 65.
MAX HUMIDITY........65 PERCENT.
WIND (20 FT)........BECOMING DOWNSLOPE 3 TO 8 MPH.
CWR.................10 PERCENT.
LAL.................2.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 88.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 9 MPH SHIFTING TO THE EAST
                    10 TO 16 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6000 TO 7000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....GOOD.

$$
FORECASTER...JJ
REQUESTED BY...BK 611
TYPE OF REQUEST...WILDFIRE
.TAG 20110825.MARSH.01/UNR