FNUS73 KUNR 151822
FWSUNR

SPOT FORECAST FOR PCK RX...SD-BKF
NATIONAL WEATHER SERVICE RAPID CITY SD
1222 PM MDT TUE SEP 15 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON SEPTEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...STRONG HIGH PRESSURE WILL REMAIN ACROSS THE AREA FOR
THE REST OF THE WEEK. THIS WILL BRING WARM AND DRY WEATHER TO THE
AREA. LOW MIXING HEIGHTS AND RELATIVELY LIGHT TRANSPORT WINDS WILL
RESULT IN POOR SMOKE DISPERSAL WEDNESDAY. THOUGH THERE IS MUCH
UNCERTAINTY AT THIS POINT...THERE IS A CHANCE THAT THURSDAY WILL
BRING BETTER SMOKE DISPERSAL. TRANSPORT WINDS WILL BE JUST AS
LIGHT AS WEDNESDAY...BUT MIXING HEIGHTS MAY BE HIGH ENOUGH TO
RESULT IN FAIR DISPERSAL.


.REST OF TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 84.
RH..................MIN 33 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3400 TO 4400 FT AGL.
TRANSPORT WINDS.....EAST 9 TO 12 MPH.
SMOKE DISPERSAL.....POOR.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 49.
RH..................MAX 74 PERCENT.
WIND (20 FT)........SOUTHEAST 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.......400 TO 900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 3 TO 12 MPH DECREASING TO 1 TO 2 MPH
                    EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........67 AT IGNITION...MAX 80.
RH..................47 PERCENT AT IGNITION...MIN 34 PERCENT.
WIND (20 FT)........WINDS EAST AT 7 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH EARLY
                    IN THE MORNING.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2900 TO 3900 FT AGL.
TRANSPORT WINDS.....EAST 3 TO 9 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...CALDERON
REQUESTED BY...PLOCEK
TYPE OF REQUEST...PRESCRIBED
.TAG 20090916.PCKRX.01/UNR