FNUS75 KSLC 061520
FWSSLC

SPOT FORECAST FOR DUCK CREEK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
813 AM MST SUN DEC 6 2009

.DISCUSSION...A WINTER STORM WATCH IS IN EFFECT FROM THIS
EVENING THROUGH TUESDAY AFTERNOON. THE COLD TROUGH THAT BROUGHT
LIGHT SNOW SHOWERS TO THE REGION OVERNIGHT IS RAPIDLY EXITING THE
AREA THIS MORNING...WITH LIGHT SNOW SHOWERS WANING ACROSS THE
SOUTHERN MOUNTAINS IN THE VICINITY OF DUCK CREEK. RAPID CLEARING IS
EXPECTED BY SUNRISE...AND PARTLY CLOUDY SKIES WILL PREVAIL TODAY.
WINDS ARE DRAINING OUT OF THE NORTHEAST AT ASSAY CURRENTLY...BUT IT
IS ANTICIPATED THAT WINDS WILL SWITCH TO THE WEST SOUTHWEST LATE
THIS MORNING AND GRADUALLY INCREASE THROUGH THE AFTERNOON AND
OVERNIGHT HOURS IN ADVANCE OF THE NEXT STORM SYSTEM. ALL THIS POINTS
TO HIGH CLEARING INDICES TODAY. LIGHT SNOW WILL INCREASE OVERNIGHT
TONIGHT...THEN GRADUALLY PICK UP THROUGH THE DAY MONDAY.
THUS...CLEARING INDICES WILL REMAIN ELEVATED THROUGH THE FORECAST
PERIOD.

A MUCH STRONGER WINTER STORM IS SPINNING UP OVER NORTHERN
CALIFORNIA AT THIS TIME...AND ITS TRACK IS EXPECTED TO BRING A
DIRECT HIT TO THE BURN SITE. TOTAL ACCUMULATIONS BY TUESDAY
AFTERNOON LOOK TO FALL IN THE 2 TO 4 FEET RANGE...WITH THE BULK OF
SNOW FALLING MONDAY AFTERNOON AND NIGHT. STRONG SOUTHWEST WINDS
COUPLED WITH THE INTENSE SNOWFALL ARE EXPECTED TO CREATE NEAR ZERO
VISIBILITY CONDITIONS DURING THAT TIME. THIS STORM IS EXPECTED TO
PULL OFF RAPIDLY TO THE EAST TUESDAY AFTERNOON...BUT SNOW SHOWERS
LOOK TO CONTINUE THROUGH MIDDAY WEDNESDAY. HIGH PRESSURE IS EXPECTED
TO BUILD WEDNESDAY NIGHT THROUGH THURSDAY WITH CLEARING AND WARMING
CONDITIONS.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER). A
                      CHANCE OF SNOW UNTIL 1100...THEN A SLIGHT
                      CHANCE OF SNOW.
  MAX TEMPERATURE.....22-24.
  MIN HUMIDITY........31-35 PERCENT.
  WINDS - 20-FOOT.....NORTHEAST WINDS 3 TO 8 MPH THROUGH
                      1700...BECOMING SOUTHWEST WINDS
                      10 TO 15 MPH MIDDAY.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SNOW UNTIL 1700...THEN A
                      CHANCE OF SNOW UNTIL 2300...THEN OCCASIONAL
                      SNOW.
  MIN TEMPERATURE.....15-17.
  MAX HUMIDITY........98-100 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 15 TO 20 MPH.

.OUTLOOK FOR MONDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........CLOUDY (95-100 PERCENT CLOUD COVER).
                      OCCASIONAL SNOW EARLY IN THE MORNING...THEN
                      SNOW.
  MAX TEMPERATURE.....27-29.
  MIN HUMIDITY........86-88 PERCENT.
  WINDS - 20-FOOT.....BREEZY. SOUTH WINDS 20 TO 25 MPH. GUSTS UP TO
                      40 MPH EARLY IN THE AFTERNOON.



FORECASTER...MERRILL
REQUESTED BY...JOSH SOPER
REASON FOR REQUEST...PRESCRIBED
.TAG 20091206.DUCKC.01/SLC

$$