FNUS75 KSLC 141448
FWSSLC

SPOT FORECAST FOR DOC SPRINGS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
748 AM MST THU FEB 14 2013

.DISCUSSION...A WEAK MID LEVEL COLD FRONT HAS MOVED THROUGH THE AREA
EARLY THIS MORNING ALLOWING A NET INCREASE TO NORTHERLY TRANSPORT
WINDS. SAID WINDS WILL BE SUFFICIENT FOR MODERATE MIXING TODAY
WITH CLEARING VALUES SPIKING TO NEAR 800 FOR THE MIDDAY AND
AFTERNOON HOURS. THE SURFACE GRADIENT COMBINED WITH LOCAL TERRAIN
SHOULD DRIVE PRIMARILY NORTH TO NORTHEAST WINDS WITH SPEEDS
INCREASING TO 10 MPH WITH GUSTS NEARING 20 MPH THIS AFTERNOON.

HIGH PRESSURE WILL BUILD IN RAPIDLY BEGINNING ON FRIDAY...HOLDING
THROUGH THE WEEKEND. THIS WILL YIELD DIMINISHED MIXING WITH
VALUES FALLING BELOW 500 BEGINNING AGAIN TOMORROW. ANOTHER WEAK
COLD FRONT SHOULD IMPROVE MIXING AGAIN NEXT MONDAY...BUT A MUCH
STRONGER STORM LOOKS TO IMPROVE MIXING CONDITIONS SIGNIFICANTLY
MIDWEEK OF NEXT WEEK.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......770.
  SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT CLOUD COVER)
                      UNTIL 1100...THEN MOSTLY SUNNY (20-30 PERCENT
                      CLOUD COVER).
  MAX TEMPERATURE.....39-43.
  MIN HUMIDITY........49-56 PERCENT.
  WINDS - 20-FOOT.....NORTH TO NORTHEAST WINDS 4 TO 8 MPH INCREASING
                      TO 8 TO 16 MPH WITH AFTERNOON GUSTS TO 20 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....15-17.
  MAX HUMIDITY........88-90 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 5 MPH BECOMING
                      DOWNSLOPE/DOWNVALLEY 3 TO 7 MPH

.OUTLOOK FOR FRIDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......410.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....40-42.
  MIN HUMIDITY........50-55 PERCENT.
  WINDS - 20-FOOT.....NORTH WINDS 5 TO 8 MPH.



FORECASTER...MERRILL
REQUESTED BY...CORY NORMAN
REASON FOR REQUEST...PRESCRIBED
.TAG 20130214.DOCSP.01/SLC

$$