FNUS73 KUNR 211528
FWSUNR

SPOT FORECAST FOR PINE RIDGE WEST...B.I.A. PINE RIDGE AGENCY
NATIONAL WEATHER SERVICE RAPID CITY SD
928 AM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL BRING MOSTLY SUNNY SKIES
AND DRY WEATHER TODAY. THERE WILL BE SOME MORE INSTABILITY
TOMORROW...BUT THE ATMOSPHERE WILL BE QUITE DRY SO NOTHING MORE
THAN VIRGA IS EXPECTED. WINDS MAY BE BREEZY AT TIMES TODAY AND
TOMORROW.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........68 AT IGNITION...MAX 74.
RH..................33 PERCENT AT IGNITION...MIN 23 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 14 TO 22 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH.
SMOKE DISPERSAL.....EXCELLENT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 41.
RH..................MAX 82 PERCENT.
WIND (20 FT)........SOUTHWEST 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.......100 TO 600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 17 TO 23 MPH EARLY IN THE EVENING...THEN SHIFTING
                    SOUTHWEST 6 TO 12 MPH LATE IN THE EVENING.
SMOKE DISPERSAL.....DECREASING TO POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 81.
RH..................MIN 17 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 20 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
SMOKE DISPERSAL.....EXCELLENT.

$$
FORECASTER...JJ
REQUESTED BY...MICHAEL TWISS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.PINER.01/UNR