FNUS75 KSLC 171525
FWSSLC

SPOT FORECAST FOR RESERVATION RIDGE PILES
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
825 AM MST FRI DEC 17 2010

.DISCUSSION...A BROAD MOIST WEST SOUTHWEST FLOW WILL PREVAIL
ACROSS THE REGION THROUGH THIS WEEKEND. THERE IS CURRENTLY AN
INVERSION IN PLACE THAT WILL REMAIN NEAR 9500 TO 10000 FEET MSL
THROUGH SATURDAY. THERE WILL BE GOOD HORIZONTAL TRANSPORT WINDS
SATURDAY OF 15-20 MPH BUT VERTICAL DISPERSION WILL REMAIN POOR
THROUGH THE DAY. HOWEVER...PERIODS OF SNOW THROUGHOUT THE DAY
SATURDAY WILL HELP SCAVENGE OUT THE SMOKE PARTICULATES. THEREFORE
THE CLEARING INDEX IS EXPECTED TO BE 1000 PLUS SATURDAY DESPITE
THE INVERSION NEAR 10000 FT MSL.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......390.
  SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER)
                      UNTIL 1000...THEN MOSTLY CLOUDY (65-75
                      PERCENT CLOUD COVER).
  MAX TEMPERATURE.....30-32.
  MIN HUMIDITY........40-42 PERCENT.
  WINDS - 20-FOOT.....EAST WINDS 5 MPH SHIFTING TO THE SOUTHWEST
                      LATE IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER). A
                      CHANCE OF SNOW AFTER 1700.
  MIN TEMPERATURE.....17-19.
  MAX HUMIDITY........99-100 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 MPH.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........CLOUDY (95-100 PERCENT CLOUD COVER). A CHANCE
                      OF SNOW EARLY IN THE MORNING...THEN
                      OCCASIONAL SNOW.
  MAX TEMPERATURE.....35-37.
  MIN HUMIDITY........60-62 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10 TO 20 MPH.



FORECASTER...STRUTHWOLF
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...PRESCRIBED
.TAG 20101217.RESER.01/SLC

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