FNUS75 KSLC 121641
FWSSLC

SPOT FORECAST FOR SCHOOL WASH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1041 AM MDT FRI AUG 12 2011

.DISCUSSION...RIDGE EXPECTED TO BUILD OVERHEAD TODAY RESULTING IN
LIGHT TERRAIN DRIVEN WINDS AT THE FIRE SITE. RIDGE WILL SHIFT
EASTWARD TOMORROW...ALLOWING MOISTURE THAT HAS BEEN GATHERING OVER
ARIZONA TO FINALLY SURGE NORTHWARD. THIS WILL INCREASE THE CHANCES
FOR AFTERNOON CONVECTION. LOW LEVELS ARE FORECAST TO REMAIN DRY
INITIALLY...HOWEVER DEEP MOISTURE WILL RAPIDLY OVERTAKE THE SOUTH
AND SPREAD NORTHWARD. ALTHOUGH DRY LIGHTNING MAY BE POSSIBLE AT
FIRST...THE RAPID INCREASE IN MOISTURE WILL ALLOW WETTING RAINS TO
DEVELOP SOON AFTER THE ONSET OF CONVECTION. PERIODS OF HEAVY RAIN
WILL NOT BE OUT OF THE QUESTION.

.TODAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......400.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....83-85.
  MIN HUMIDITY........16-18 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 MPH INCREASING TO 15 MPH LATE IN
                      THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....60-63.
  MAX HUMIDITY........51-53 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 10 TO 15 MPH SHIFTING TO THE
                      NORTHWEST 5 TO 10 MPH AFTER MIDNIGHT.

.OUTLOOK FOR SATURDAY...
  LAL.................2 UNTIL NOON...THEN 4.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......820.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER)
                      THEN BECOMING MOSTLY CLOUDY (70-80 PERCENT
                      CLOUD COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE MORNING...THEN A CHANCE
                      OF SHOWERS AND THUNDERSTORMS IN THE
                      AFTERNOON.
  MAX TEMPERATURE.....79-82.
  MIN HUMIDITY........26-28 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 TO 10 MPH.



FORECASTER...YOUNG
REQUESTED BY...CCIFC
REASON FOR REQUEST...WILDFIRE
.TAG 20110812.SCHOO.01/SLC

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