FNUS73 KUNR 201909
FWSUNR

SPOT FORECAST FOR SUNDANCE RX  21...USFS BLRD
NATIONAL WEATHER SERVICE RAPID CITY SD
109 PM MDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE WILL AGAIN BRING SUNNY SKIES TOMORROW
ALONG WITH TEMPERATURES IN THE MID 60S. THE AFTERNOON MINIMUM
RELATIVE HUMIDITY WILL DROP TO AROUND 25 PERCENT. 20 FT WINDS ARE
EXPECTED TO REMAIN UNDER 10 MPH. WITH RELATIVELY LIGHT TRANSPORT
WINDS AND MIXING HEIGHTS GENERALLY BELOW 4000 FEET...SMOKE
DISPERSAL TOMORROW IS EXPECTED TO REMAIN POOR.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 42.
RH..................MAX 50 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........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........53 AT IGNITION...MAX 65.
RH..................35 PERCENT AT IGNITION...MIN 25 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 7 MPH AT
                    IGNITION...OTHERWISE DOWNSLOPE AND DOWN
                    VALLEY WINDS EARLY IN THE MORNING 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.......3300 TO 4300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 9 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...CALDERON
REQUESTED BY...BKF E 411
TYPE OF REQUEST...PRESCRIBED
.TAG 20101021.SUNDA.01/UNR