FNUS75 KSLC 261959
FWSSLC

SPOT FORECAST FOR DUCK CREEK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
159 PM MDT MON APR 26 2010

.DISCUSSION...HIGH PRESSURE WILL KEEP A DRY AND MILD AIRMASS OVER
THE FORECAST AREA TODAY. TRANSPORT WINDS WILL REMAIN GENERALLY
LIGHT THROUGH THE EVENING...BUT NOW LOOK TO BE SUFFICIENT ENOUGH
TO PUSH CLEARING INDICES ABOVE 500. THE RIDGE WILL SHIFT EAST
TONIGHT AND TOMORROW...ALLOWING FOR STRONG SOUTHWEST WINDS TO
DEVELOP BY TOMORROW AFTERNOON AHEAD OF THE APPROACHING STORM
SYSTEM. THE COLD FRONT WILL ENTER NORTHERN UTAH VERY EARLY
WEDNESDAY...APPROACHING THE BURN SITE LATE WEDNESDAY
AFTERNOON/EARLY WEDNESDAY EVENING. A PERIOD OF HEAVY SNOW WILL
OCCUR WITH THE PASSAGE OF THE FRONT...BUT INSTABILITY SHOWERS ARE
POSSIBLE THROUGH AT LEAST THURSDAY.

.REST OF TODAY...
LAL...................1.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........550.
SKY/WEATHER...........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
MAX TEMPERATURE.......60-64.
MIN HUMIDITY..........17-21 PERCENT.
WIND (20 FT)..........NORTHWEST WINDS 5-10 MPH.

.TONIGHT...
LAL...................1.
HAINES INDEX..........4 ..LOW.
SKY/WEATHER...........MOSTLY CLEAR (0-10 PERCENT CLOUD COVER).
MIN TEMPERATURE.......32-36.
MAX HUMIDITY..........50-54 PERCENT.
WIND (20 FT)..........DOWNSLOPE/DOWNVALLEY WINDS 3-7 MPH.

.OUTLOOK FOR TUESDAY...
LAL...................1.
HAINES INDEX..........3 ..VERY LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
                      COVER).
MAX TEMPERATURE.......63-67.
MIN HUMIDITY..........16-20 PERCENT.
WIND (20 FT)..........VERY WINDY. SOUTH WINDS 15 TO 20 MPH
                      INCREASING TO SOUTHWEST 35 TO 40 MPH WITH
                      GUSTS TO AROUND 55 MPH IN THE AFTERNOON.



FORECASTER...TRAPHAGAN
REQUESTED BY...MECHAM
REASON FOR REQUEST...PRESCRIBED
.TAG 20100426.DUCKC.02/SLC

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