FNUS75 KSLC 251144
FWSSLC

SPOT FORECAST FOR PRETTY TREE RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
544 AM MDT THU APR 25 2013

.DISCUSSION...A WEAK STORM SYSTEM MOVING THROUGH THE AREA WILL
PUSH A FRONTAL BOUNDARY THROUGH THE BURN SITE LATE THIS AFTERNOON.
THE DISTURBANCE WILL PROVIDE ENOUGH INSTABILITY FOR GOOD TO
EXCELLENT MIXING THROUGHOUT THE DAY. HIGH PRESSURE BUILDS OVER THE
BURN SITE FRIDAY THROUGH THE WEEKEND BEHIND THE EXITING SYSTEM.
MIXING SHOULD STILL BE MARGINALLY GOOD FRIDAY BUT WILL DETERIORATE
OVER THE WEEKEND.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER NOON.
  MAX TEMPERATURE.....54-58.
  MIN HUMIDITY........11-15 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH BECOMING NORTHWEST
                      5-10 MPH BY LATE AFTERNOON.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      UNTIL MIDNIGHT.
  MIN TEMPERATURE.....32-36.
  MAX HUMIDITY........30-34 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY WINDS 3-7 MPH.

.OUTLOOK FOR FRIDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......560.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....55-59.
  MIN HUMIDITY........7-11 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH.



FORECASTER...TRAPHAGAN
REQUESTED BY...CHANCE STEWART
REASON FOR REQUEST...PRESCRIBED
.TAG 20130425.PRETT.01/SLC

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