FNUS73 KUNR 091330
FWSUNR

SPOT FORECAST FOR CASTLE RX...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
730 AM MDT FRI SEP 9 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A LARGE AREA OF HIGH PRESSURE WILL CONTINUE TO BRING
WARM AND DRY CONDITIONS TO THE BURN SITE TODAY THROUGH SATURDAY.
LIGHT AND VARIABLE WINDS THIS MORNING WILL BECOME EAST AT 6 TO 9
MPH BY MIDDAY.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........68 AT IGNITION...MAX 81.
RH..................43 PERCENT AT IGNITION...MIN 28 PERCENT.
WIND (20 FT)........WINDS EAST AT 6 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS BECOMING EAST 6 TO 9 MPH IN THE
                    LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5100 TO 6100 FT AGL.
TRANSPORT WINDS.....EAST 1 TO 9 MPH INCREASING TO 10 TO 13 MPH IN
                    THE AFTERNOON.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD EARLY IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 53.
RH..................MAX 80 PERCENT.
WIND (20 FT)........EAST WINDS 6 TO 9 MPH IN THE EVENING BECOMING
                    LIGHT.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100 TO 600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 3 TO 8 MPH.
SMOKE DISPERSAL.....POOR.

.SATURDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 85.
RH..................MIN 27 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 8 MPH IN
                    THE LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5200 TO 6200 FT AGL.
TRANSPORT WINDS.....SOUTH 3 TO 10 MPH.
SMOKE DISPERSAL.....FAIR.

$$
FORECASTER...LC
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20110909.CASTL.01/UNR