FNUS73 KUNR 201634
FWSUNR

SPOT FORECAST FOR SUNDANCE RX 32...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
1034 AM MDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1020 MDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE WILL BRING SUNNY SKIES AND SEASONAL
TEMPERATURES TO THE AREA TODAY. HIGH TEMPERATURES WILL BE IN THE
LOWER 60S WITH THE AFTERNOON MINIMUM RELATIVE HUMIDITY FALLING TO
AROUND 30 PERCENT. WINDS WILL BE OUT OF THE NORTHWEST AT 5 TO 10
MPH. SMOKE DISPERSAL WILL RISE TO FAIR IN THE AFTERNOON...THEN
QUICKLY DROP BACK TO POOR IN THE LATE AFTERNOON AS TRANSPORT WINDS
WEAKEN.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 61.
RH..................MIN 29 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 7 TO 13 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500 TO 4500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 15 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR IN THE
                    AFTERNOON...THEN DECREASING TO POOR LATE
                    IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 41.
RH..................MAX 52 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE WINDS WILL LEAD TO
                    PREDOMINATELY TERRAIN DRIVEN VALLEY
                    WINDS...DOWNSLOPE AND DOWN VALLEY WINDS
                    AFTER SUNSET.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 65.
RH..................MIN 25 PERCENT.
WIND (20 FT)........DOWNSLOPE AND DOWN VALLEY WINDS BECOMING
                    SOUTHWEST WINDS 6 TO 9 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500 TO 4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 9 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...CALDERON
REQUESTED BY...USFS
TYPE OF REQUEST...PRESCRIBED
.TAG 20101020.SUNDA.01/UNR