FNUS73 KUNR 201924
FWSUNR

SPOT FORECAST FOR GHOST HAWK...SD-RBA
NATIONAL WEATHER SERVICE RAPID CITY SD
1224 PM MST FRI NOV 20 2009

FORECAST IS BASED ON IGNITION TIME OF 1300 CST ON NOVEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE ALOFT WILL BRING SUNNY SKIES TO THE
BURN AREA TODAY. A SURFACE TROUGH OF LOW PRESSURE WILL APPROACH
THE AREA LATE TODAY. THIS SHOULD KEEP SOUTHWEST WINDS ACROSS THE
BURN AREA THROUGH THIS AFTERNOON. SOUTHWEST WINDS WILL INCREASE
LATE TONIGHT AS TROUGH MOVES ACROSS THE AREA.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........58 AT IGNITION...MAX 59.
RH..................27 PERCENT AT IGNITION...MIN 26 PERCENT.
WIND (20 FT)........SOUTHWEST AT 6 TO 12 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1500 TO 2700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
SMOKE DISPERSAL.....FAIR.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 28.
RH..................MAX 88 PERCENT.
WIND (20 FT)........SOUTHWEST 8 TO 16 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......100 TO 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
SMOKE DISPERSAL.....POOR.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 57.
RH..................MIN 31 PERCENT.
WIND (20 FT)........SOUTHWEST 15 TO 25 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1400 TO 2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 30 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD.

$$
FORECASTER...JW
REQUESTED BY...STEVEN IPSWITCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20091120.GHOST.02/UNR