FNUS75 KSLC 081913
FWSSLC

SPOT FORECAST FOR PRETTY TREE RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
113 PM MDT TUE MAY 8 2012

.DISCUSSION...HIGH PRESSURE WILL BUILD IN FROM THE NORTH OVER THE
NEXT 24 HOURS BRINGING SLIGHTLY DRIER AIR IN ALOFT. WITH HIGH
PRESSURE BUILDING LOOK FOR INSTABILITY TO WANE OWING TO A
SUBSTANTIAL DECREASE IN VENTILATION POTENTIAL FOR WEDNESDAY. THIS
SAID...INPUT FROM TRANSPORT WINDS IS EXPECTED TO ALLOW FOR
CLEARING JUST OVER 500 AT THE PRETTY TREE SITE.

SOUTHWESTERLY FLOW ALOFT WILL INCREASE FOR THURSDAY AS A COLD
FRONT BEGINS NOSING INTO NORTHERN UTAH...CONTINUED DRY AND WARM
FOR WEDNESDAY BUT SHOULD SEE A NOTED INCREASE IN SOUTHERLY WINDS
AT THE SITE.

.REST OF TODAY...
  LAL.................2.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....60-63.
  MIN HUMIDITY........16-18 PERCENT.
  WINDS - 20-FOOT.....EAST SOUTHEAST WINDS 5 TO 10 WITH GUSTS TO
                      17 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....40-42.
  MAX HUMIDITY........38-43 PERCENT.
  WINDS - 20-FOOT.....EAST WINDS 15 MPH SHIFTING TO THE NORTHWEST 5
                      TO 10 MPH IN THE LATE EVENING AND OVERNIGHT.

.OUTLOOK FOR WEDNESDAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......530.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER).
  MAX TEMPERATURE.....63-65.
  MIN HUMIDITY........13-15 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE NORTHERLIES 5 TO 9 MPH BECOMING
                      UPSLOPE SOUTHEASTERLIES 4 TO 8 MPH AFTER
                      10/1100. CAN NOT RULE OUT A FEW GUSTS TO
                      12 MPH IN THE AFTERNOON.



FORECASTER...MERRILL
REQUESTED BY...GREGG CHRISTENSEN
REASON FOR REQUEST...PRESCRIBED
.TAG 20120508.PRETT.01/SLC

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