FNUS75 KSLC 181345
FWSSLC

SPOT FORECAST FOR MERCHANT VALLEY RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
745 AM MDT WED APR 18 2012

.DISCUSSION...SKIES ARE MOSTLY CLOUDY OVER THE BURN SITE THIS
MORNING IN RESPONSE TO THE WEAK STORM SYSTEM CURRENTLY GRAZING
NORTHERN UTAH. CLOUDS WILL DECREASE BY THIS AFTERNOON AS THE
TROUGH EXITS. THE PASSAGE OF THIS TROUGH WILL ACT TO INCREASE
SOUTHWESTERLY FLOW ALOFT A BIT...WHICH WILL INCREASE TRANSPORT
WINDS. THE SOMEWHAT UNSTABLE AIRMASS WILL PROVIDE EXCELLENT
MIXING. HIGH PRESSURE WILL MOVE OVER THE BURN SITE
TOMORROW...BUILDING THROUGH THE WEEKEND. THE RESULTANT DRY AND
STABLE CONDITIONS WITH LIGHT WINDS WILL CAUSE DECREASING CLEARING
INDICES THROUGH EARLY NEXT WEEK.

.TODAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....52-56.
  MIN HUMIDITY........35-39 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10-15 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF RAIN AND SNOW AFTER
                      MIDNIGHT.
  MIN TEMPERATURE.....34-38.
  MAX HUMIDITY........72-76 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 8-12 MPH BECOMING DOWNSLOPE/DOWNVALLEY
                      3-7 MPH OVERNIGHT.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......770.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SNOW IN THE MORNING...THEN A
                      SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS IN
                      THE AFTERNOON.
  MAX TEMPERATURE.....50-54.
  MIN HUMIDITY........34-39 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 8-12 MPH.



FORECASTER...TRAPHAGAN
REQUESTED BY...BEAVER RANGER DISTRICT
REASON FOR REQUEST...PRESCRIBED
.TAG 20120418.MERCH.01/SLC

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