FNUS75 KSLC 032329
FWSSLC

SPOT FORECAST FOR DUCK CREEK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
429 PM MST THU DEC 3 2009

.DISCUSSION...HIGH PRESSURE WILL BUILD OVER THE AREA TONIGHT
AND TOMORROW...LEADING TO MOSTLY CLEAR SKIES...WEAKENING
WINDS...AND POOR MIXING AND CLEARING INDICES. A STORM SYSTEM WILL
MOVE INTO UTAH FROM THE NORTH ON SATURDAY...WITH THE ASSOCIATED
COLD FRONT MOVING THROUGH THE BURN SITE IN THE LATE AFTERNOON OR
EVENING HOURS. THIS FRONT WILL BE RELATIVELY DRY...WITH ONLY A 30
PERCENT CHANCE OF PRECIPITATION AT THE BURN SITE SATURDAY NIGHT.

SUNDAY SHOULD BE A BREAK BETWEEN STORM SYSTEMS. THE FORECAST
MODELS BEGIN TO DIVERGE ON MONDAY...BUT ANOTHER STORM SYSTEM IS
EXPECTED TO MOVE THROUGH THE AREA EITHER MONDAY OR TUESDAY...WITH
INCREASED WINDS ON MONDAY AND A GOOD CHANCE FOR SNOWFALL EITHER
DURING THE DAY MONDAY OR MONDAY NIGHT INTO TUESDAY. IT IS
GENERALLY TOO FAR OUT TO GET CONFIDENT SNOW ACCUMULATION
AMOUNTS...ESPECIALLY WITH SIGNIFICANT MODEL DISAGREEMENT...BUT AT
THE MOMENT THE BEST ESTIMATE FOR STORM TOTAL SNOW ACCUMULATION
LOOKS TO BE 5-10 INCHES OF NEW SNOW...WITH A POTENTIAL FOR HIGHER
AMOUNTS IF THE STORM MOVES DIRECTLY THROUGH SOUTHERN UTAH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....3-6.
  MAX HUMIDITY........36-39 PERCENT.
  WINDS - 20-FOOT.....NORTH-NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS
                      NEAR 15 MPH IN THE EARLY EVENING...THEN
                      SHIFTING TO THE WEST 5 TO 10 MPH THROUGH THE
                      OVERNIGHT HOURS.

.FRIDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......270.
  SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....33-36.
  MIN HUMIDITY........11-14 PERCENT.
  WINDS - 20-FOOT.....WEST-NORTHWEST WINDS 5 TO 10 MPH BECOMING
                      UPSLOPE/UPVALLEY 3 TO 6 MPH LATE MORNING
                      THROUGH AFTERNOON.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER)...
                      BECOMING PARTLY CLOUDY (55-65 PERCENT CLOUD
                      COVER) IN THE AFTERNOON.
  MAX TEMPERATURE.....33-37.
  MIN HUMIDITY........13-16 PERCENT.
  WINDS - 20-FOOT.....WEST-SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS
                      UP TO 30 MPH IN THE AFTERNOON...SHIFTING
                      TO THE NORTHWEST LATE AFTERNOON OR EARLY
                      EVENING.



FORECASTER...SCHOENING
REQUESTED BY...ERIC EASTEP
REASON FOR REQUEST...PRESCRIBED
.TAG 20091203.DUCKC.02/SLC

$$