FNUS75 KSLC 230000
FWSSLC

SPOT FORECAST FOR PRETTY TREE RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
600 PM MDT MON APR 22 2013

.DISCUSSION...A MUCH COLDER AIRMASS IS IN PLACE NOW BEHIND THE
PASSING COLD FRONT. SURFACE RIDGING WILL BUILD IN BEHIND THE
SYSTEM FOR MUCH OF THE UPCOMING WEEK. TRANSPORT WINDS SHOULD BE
JUST STRONG ENOUGH FOR MARGINALLY GOOD MIXING TOMORROW...BUT
WEAKEN AFTER THAT. SO MIXING WILL BE FAIR TO POOR BEGINNING
WEDNESDAY DESPITE THE PRESENCE OF A FEW WEAK STORM SYSTEMS. A DRY
AIRMASS WILL REMAIN IN PLACE...RESULTING IN GENERALLY LOW RH
VALUES.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....32-36.
  MAX HUMIDITY........34-38 PERCENT.
  WINDS - 20-FOOT.....WEST TO NORTHWEST WINDS 8-12 MPH.

.TUESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......500.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....46-50.
  MIN HUMIDITY........10-14 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 5-10 MPH.

.OUTLOOK FOR WEDNESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......360.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....50-54.
  MIN HUMIDITY........8-12 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS UP TO 5 MPH.



FORECASTER...TRAPHAGAN
REQUESTED BY...CHANCE STEWART
REASON FOR REQUEST...PRESCRIBED
.TAG 20130423.PRETT.01/SLC

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