FNUS75 KSLC 261533
FWSSLC

SPOT FORECAST FOR THOMPSON BASIN PILES
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
830 AM MST MON JAN 26 2009

.DISCUSSION...COLD FRONT WILL MOVE THROUGH THE BURN SITE THIS
MORNING BRINGING A SHIFT TO NORTHERLY WINDS.  ANTICIPATE THAT WIND
SHIFT WILL OCCUR BY 1000 MDT. A BAND OF SNOW WILL ACCOMPANY THE
FRONT BRINGING SNOW SHOWERS...HEAVY AT TIMES...TO THE BURN SITE
THROUGH THE AFTERNOON. HOWEVER...DECENT MIXING DEPTH AND TRANSPORT
WINDS OF 10 TO 20 MPH WILL RESULT IN A HIGH CLEARING INDEX TODAY.
MIXING DEPTH WILL DECREASE ON TUESDAY AS RIDGING BUILDS IN ALOFT.
THIS WILL YIELD MUCH MORE MARGINAL CLEARING INDICES.  THE REMAINDER
OF THE WEEK LOOKS LARGELY DRY WITH MARGINAL CLEARING INDICES
EXPECTED.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......880.
  SKY/WEATHER.........MOSTLY CLOUDY (90-100 PERCENT CLOUD COVER)
                      WITH OCCASIONAL SNOW...HEAVY AT TIMES.
  MAX TEMPERATURE.....29-34.
  MIN HUMIDITY........60-65 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO
                      THE NORTH AND INCREASING TO 10 TO 20 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (85-95 PERCENT CLOUD COVER).
                      OCCASIONAL SNOW UNTIL 2100...THEN A CHANCE OF
                      SNOW.
  MIN TEMPERATURE.....15-20.
  MAX HUMIDITY........90-95 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 5 TO 10 MPH IN THE
                      EVENING BECOMING LIGHT AND VARIABLE.

.OUTLOOK FOR TUESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......510.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER)
                      WITH A CHANCE OF SNOW EARLY IN THE MORNING...
                      THEN BECOMING PARTLY CLOUDY (40-50 PERCENT
                      CLOUD COVER).
  MAX TEMPERATURE.....28-33.
  MIN HUMIDITY........40-45 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE WINDS BECOMING NORTHWEST 5
                      TO 10 MPH IN THE LATE MORNING AND AFTERNOON.



FORECASTER...GRAHAM
REQUESTED BY...RYAN MCCOLLIN
REASON FOR REQUEST...PRESCRIBED
.TAG 20090126.THOMP.01/SLC

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