FNUS75 KSLC 161648
FWSSLC

SPOT FORECAST FOR STEEP CREEK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1048 AM MDT THU JUL 16 2009

.DISCUSSION...HIGH PRESSURE ALOFT WILL BUILD ACROSS THE SITE
TODAY THROUGH FRIDAY...THEN REMAIN IN PLACE THROUGH THE
UPCOMING WEEKEND. THIS WILL RESULT IN A WARMING TREND WITH VERY
LOW DAYTIME RH...AND POOR OVERNIGHT RECOVERY.
ADDITIONALLY...WINDS IN THE PROXIMITY OF THIS HIGH WILL REMAIN
LIGHT...AND GENERALLY DRIVEN BY SLOPE FLOWS. TRANSPORT WINDS
ARE ALSO EXPECTED TO REMAIN VERY LIGHT...HOWEVER DEEP DAYTIME
MIXING SHOULD ALLOW CLEARING INDICES TO EXCEED 500 BY 1100 OR
SO EACH AFTERNOON.

HIGH BASED MOISTURE IS EXPECTED TO SPREAD INTO THE AREA OVER THE
WEEKEND. ALTHOUGH AN ISOLATED HIGH BASED SHOWER OR DRY
THUNDERSTORM CANT BE RULED OUT THE NEXT COUPLE OF
AFTERNOONS...THE THREAT FOR THUNDERSTORM ACTIVITY WILL INCREASE
OVER THE WEEKEND.

.TODAY...
  LAL.................1.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......600.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) UNTIL
                      NOON...THEN PARTLY CLOUDY (30-40 PERCENT
                      CLOUD COVER). A FEW AFTERNOON BUILDUPS
                      POSSIBLE.
  MAX TEMPERATURE.....80-83.
  MIN HUMIDITY........11-14 PERCENT.
  WINDS - 20-FOOT.....UPVALLEY/UPSLOPE 4-9 MPH

.TONIGHT...
  LAL.................1.
  HAINES INDEX........6 ..HIGH.
  SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....54-57.
  MAX HUMIDITY........26-29 PERCENT.
  WINDS - 20-FOOT.....DOWNVALLEY/DOWNSLOPE 4-9 MPH.

.OUTLOOK FOR FRIDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......760.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER). A FEW AFTERNOON BUILDUPS WITH AN
                      ISOLATED DRY THUNDERSTORM POSSIBLE.
  MAX TEMPERATURE.....82-85.
  MIN HUMIDITY........9-12 PERCENT.
  WINDS - 20-FOOT.....UPVALLEY/UPSLOPE 4-9 MPH.



FORECASTER...SEAMAN
REQUESTED BY...RICHFIELD DISPATCH
REASON FOR REQUEST...PRESCRIBED
.TAG 20090716.STEEP.01/SLC

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