FNUS75 KSLC 251515
FWSSLC

SPOT FORECAST FOR STUMP SPRINGS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
915 AM MDT FRI SEP 25 2009

.DISCUSSION...A RIDGE OF HIGH PRESSURE ALOFT WILL RESIDE TO
THE WEST OF THE BURN AREA TODAY...BEFORE SHIFTING OVERHEAD
DURING THE UPCOMING WEEKEND. THIS WILL RESULT IN A GENERAL
DECREASE IN TRANSPORT WINDS SATURDAY AND SUNDAY...AND AN
ACCOMPANYING DECREASE IN CLEARING INDICES WHICH WILL LIKELY
REMAIN BELOW 500 SUNDAY. WITH THE RIDGE BUILDING INTO THE
AREA WINDS AT THE SURFACE WILL GENERALLY REMAIN LIGHT...AND
DOMINATED BY SLOPE FLOWS WITH A GENERAL LIGHT WESTERLY
DOWNSLOPE WIND DURING THE OVERNIGHT HOURS. SOUTHWESTERLY
FLOW IS EXPECTED TO INCREASE SUBSTANTIALLY MONDAY AND TUESDAY
AHEAD OF AN APPROACHING PACIFIC STORM SYSTEM. THIS WILL ALLOW
FOR EXCELLENT VENTILATION BOTH DAYS. THIS SYSTEM IS EXPECTED
TO ARRIVE WEDNESDAY...AND LINGER THROUGH THE REMAINDER OF THE
WEEK.

.TODAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....67-70.
  MIN HUMIDITY........15-18 PERCENT.
  WINDS - 20-FOOT.....WEST/DOWNSLOPE 2-5 MPH BECOMING
                      SOUTHEAST/UPSLOPE 3-8 MPH AFTER 1000.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....46-49.
  MAX HUMIDITY........37-40 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST/UPSLOPE 2-5 MPH BECOMING
                      WEST/DOWNSLOPE 3-8 MPH AFTER 1900.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......550.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....70-73.
  MIN HUMIDITY........14-17 PERCENT.
  WINDS - 20-FOOT.....WEST/DOWNSLOPE 2-5 MPH BECOMING
                      SOUTHEAST/UPSLOPE 3-8 MPH AFTER 1000.



FORECASTER...SEAMAN
REQUESTED BY...KEITH ADAMS
REASON FOR REQUEST...PRESCRIBED
.TAG 20090925.STUMP.01/SLC

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