FNUS75 KSLC 270008
FWSSLC

SPOT FORECAST FOR ZION CANYON GRASS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
608 PM MDT THU MAY 26 2011

.DISCUSSION...A BROAD UPPER TROUGH WILL MOVE ACROSS THE
NORTHWESTERN UNITED STATES THROUGH FRIDAY...REMAINING WELL NORTH
OF THE BURN SITE. HOWEVER...THE ASSOCIATED UNSTABLE AIRMASS AND
ENHANCED SOUTHWESTERLY TRANSPORT WINDS WILL RESULT IN EXCELLENT
MIXING OVER THE NEXT FEW DAYS. SOUTHWEST WINDS WILL DECREASE
OVERNIGHT BEFORE PICKING UP AGAIN BY THE EARLY AFTERNOON FRIDAY.
WINDS WILL CONTINUE TO INCREASE DURING THE DAY...BECOMING QUITE
BREEZY BY LATE AFTERNOON BEFORE RELAXING BY LATE EVENING. ENHANCED
SOUTHWESTERLY WINDS WILL DEVELOP AGAIN SATURDAY AFTERNOON AS
ANOTHER TROUGH ENTERS THE STATE...BUT WINDS SHOULD BE SLIGHTLY
WEAKER COMPARED TO FRIDAY. THE TROUGH WILL BRING A GOOD CHANCE OF
RAIN TO THE BURN SITE BY SUNDAY.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....62-66.
  MAX HUMIDITY........30-34 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 10-15 MPH BECOMING DOWNSLOPE/DOWNVALLEY
                      3-7 MPH OVERNIGHT.

.FRIDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....82-86.
  MIN HUMIDITY........14-18 PERCENT.
  WINDS - 20-FOOT.....BREEZY. UPSLOPE/UPVALLEY WINDS 3-7 MPH BECOMING
                      SOUTHWEST 15-25 MPH WITH GUSTS TO 35 MPH BY LATE
                      AFTERNOON.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (40-50 PERCENT CLOUD
                      COVER).
  MAX TEMPERATURE.....83-87.
  MIN HUMIDITY........12-16 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH BECOMING SOUTHWEST
                      10-20 MPH BY THE EARLY AFTERNOON.



FORECASTER...TRAPHAGAN
REQUESTED BY...JAMES COURTRIGHT
REASON FOR REQUEST...PRESCRIBED
.TAG 20110527.ZIONC.01/SLC

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