FNUS73 KUNR 091933
FWSUNR

SPOT FORECAST FOR OLD GROWTH PILES
NATIONAL WEATHER SERVICE RAPID CITY SD
1233 PM MST WED DEC 9 2009

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

DISCUSSION...WARMER AIR ALOFT WILL START PUSHING INTO THE AREA
TONIGHT INTO THURSDAY. THIS WILL CREATE AN INVERSION OVER THE AREA
BRINGING LOW MIXING HEIGHTS AND POOR CLEARING INDEX.  WINDS WILL
BECOME WESTERLY...POSSIBLY BECOMING GUSTY AT RIDGETOP.

FOR TONIGHT
   SKY / WEATHER.......PARTLY CLOUDY
   TEMPERATURE.........MIN -8
   RH..................MAX 81%
   20 FOOT WIND........WEST AT 6 TO 12 MPH
   CWR.................0%
   MIXING HEIGHT.......LESS THAT 200 FT AGL
   MIXING WINDS........WEST AT 15 TO 20 MPH
   CLEARING INDEX......POOR

OUTLOOK FOR TOMORROW
   SKY / WEATHER.......PARTLY CLOUDY
   TEMPERATURE.........MAX 16
   RH..................MIN 32%
   20 FOOT WIND........WEST AT 12 TO 15 MPH. GUSTS UP TO 25 MPH
                       AT RIDGETOP.
   CWR.................0%
   MIXING HEIGHT.......500 FT AGL
   MIXING WINDS........WEST AT 15 TO 25 MPH
   CLEARING INDEX......POOR


FORECASTER...JS

$$

REQUESTED BY...ANDY THORSTENSON
REASON FOR REQUEST...UNDER THE INTERAGENCY AGREEMENT FOR METEOROLOGICAL SERVICES (USFS, BLM, NPS, U