FNUS75 KSLC 191908
FWSSLC

SPOT FORECAST FOR DUCK CREEK FUELS ASPEN
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
108 PM MDT WED OCT 19 2011

.DISCUSSION...WEAK STORM SYSTEM MOVING ACROSS THE REGION HAS
INCREASED TRANSPORT WINDS...RESULTING IN IMPROVED MIXING. FROM
OBSERVATIONS GIVEN FROM THE SPOT FORECAST...WINDS ARE NOT QUITE AS
HIGH AT THE BURN SITE AS THEY ARE IN SURROUNDING LOCATIONS...SO
HAVE TWEAKED THE CLEARING INDEX SLIGHTLY DOWNWARD. HIGH PRESSURE
WILL REDEVELOP TOMORROW AND THE RESULTANT DRY AND STABLE AIRMASS
WILL DECREASE MIXING. ANOTHER WEAK SYSTEM WILL GRAZE NORTHERN UTAH
FRIDAY...RESULTING IN CLEARING INDICES NEAR 500 FOR THE BURN SITE
DURING THE DAY. HIGH PRESSURE WILL REDEVELOP OVER THE
WEEKEND...AND MIXING WILL THEREFORE DECREASE.

.REST OF TODAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......700.
  SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....59-60.
  MIN HUMIDITY........12-14 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....38-40.
  MAX HUMIDITY........56-58 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY WINDS 3-7 MPH.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......270.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....58-60.
  MIN HUMIDITY........14-16 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS UP TO 5 MPH.



FORECASTER...TRAPHAGAN
REQUESTED BY...ZACH GLOVER
REASON FOR REQUEST...PRESCRIBED
.TAG 20111019.DUCKC.02/SLC

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