FNUS73 KUNR 042046
FWSUNR

SPOT FORECAST FOR SLASH PILES...ROSEBUD FIRE
NATIONAL WEATHER SERVICE RAPID CITY SD
146 PM MST WED FEB 4 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON FEBRUARY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE OF HIGH PRESSURE MOVING OVER
THE AREA WILL BRING WARM AND DRY CONDITIONS TO THE BURN SITE THROUGH
FRIDAY. WITH THE LOW MIXING HEIGHTS DUE TO WARM AIR MOVING IN ALOFT ON
THURSDAY...COMBINED WITH THE LIGHT TRANSPORT WINDS...SMOKE DISPERSAL
IS EXPECTED TO BE POOR. WINDS ARE EXPECTED TO BE STRONGER ON
FRIDAY...BLOWING OUT OF THE SOUTHWEST AT 10 TO 15 MPH. COOLER...THOUGH
STILL ABOVE AVERAGE...TEMPERATURES ARE EXPECTED ON SATURDAY WHILE WINDS
BECOME NORTHWEST AT 10 TO 15 MPH.  A LOW PRESSURE SYSTEM WILL APPROACH
THE AREA ON SUNDAY AND MOVE THROUGH ON MONDAY BRINGING COOLER
TEMPERATURES ALONG WITH A GOOD CHANCE FOR SNOW FOR LATE SUNDAY INTO MONDAY.

.THURSDAY...
SKY/WEATHER.........SUNNY.
TEMPERATURE.........34 AT IGNITION...MAX 56.
RH..................49 PERCENT AT IGNITION...MIN 27 PERCENT.
WIND (20 FT)........WINDS WEST AT 8 MPH AT IGNITION...OTHERWISE
                    SOUTHWEST WINDS 5 TO 9 MPH.
CWR.................0 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......800 TO 1800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 13 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...JS
REQUESTED BY...KEITH ROBERTSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090205.SLASH.01/UNR