FNUS73 KUNR 021745
FWSUNR

SPOT FORECAST FOR SHADEHILL EXERCISE...USFS/FWS/SD STATE
NATIONAL WEATHER SERVICE RAPID CITY SD
1145 AM MDT SAT MAY 2 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 02.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BRING
DRY CONDITIONS TO THE BURN SITE THROUGH SUNDAY AFTERNOON.  THE
NEXT CHANCE FOR SHOWERS OR THUNDERSTORMS WILL COME LATE SUNDAY
NIGHT INTO MONDAY.

.REST OF TODAY...
SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 64.
RH..................MIN 27 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 13 TO 16 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6000 TO 8000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 25 TO 28 MPH.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 36.
RH..................MAX 72 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 12 MPH 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.....NORTHWEST 10 TO 20 MPH DECREASING TO 7 TO 10
                    MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR.

.SUNDAY...
SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 68.
RH..................MIN 30 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 12 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7300 TO 8300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 12 MPH.
SMOKE DISPERSAL.....GOOD.

$$
FORECASTER...JS
REQUESTED BY...DALE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090502.SHADE.02/UNR