FNUS75 KSLC 051438
FWSSLC

SPOT FORECAST FOR WEST MOUNTAIN
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
830 AM MDT SUN AUG 5 2012

.DISCUSSION...UPPER LEVEL HIGH PRESSURE OVER THE SOUTHERN PLAINS
WILL DRIFT SLOWLY WEST TOWARD THE FOUR CORNERS REGION TODAY.  THIS
WILL CREATE SOUTHERLY FLOW ALOFT WHICH WILL ALLOW DEEP MOISTURE TO
CONTINUE TO MOVE NORTH INTO UTAH. THIS WILL BRING THE POTENTIAL FOR
ISOLATED THUNDERSTORMS ACROSS SOUTHWEST UTAH THIS AFTERNOON AND
EVENING. HOWEVER...THE GREATER THREAT AT THE BURN SITE WOULD BE
GUSTY OUTFLOW WINDS FROM A NEARBY STORM. MINIMUM RELATIVE HUMIDITIES
ARE EXPECTED TO BE IN THE 15-20 PERCENT RANGE THIS AFTERNOON. WINDS
WILL GENERALLY BE TERRAIN DRIVEN AND ANTICIPATE THAT SOUTH WINDS
WILL DEVELOP BY NOON WITH GUSTS TO 20-25 MPH POSSIBLE THROUGH THE
AFTERNOON. WINDS WILL THEN SHIFT TO THE NORTHEAST TONIGHT.

AS THE UPPER RIDGE MOVES WEST INTO THE GREAT BASIN ON MONDAY...A
DRYING TREND IS EXPECTED ACROSS MUCH OF WESTERN AND NORTHERN UTAH.
HOWEVER...DEEPER MOISTURE WILL LINGER FROM EAST CENTRAL THROUGH
EXTREME SOUTHWEST UTAH. THIS WILL AGAIN RESULT IN THE A SLIGHT
CHANGE OF THUNDERSTORMS OVER THE BURN AREA ON MONDAY. TERRAIN DRIVEN
WINDS ARE EXPECTED TO BE SIMILAR TO TODAY/S.

TONIGHT

.TODAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......870.
  SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN PARTLY CLOUDY (50-60
                      PERCENT CLOUD COVER). A SLIGHT CHANCE OF
                      SHOWERS AND THUNDERSTORMS AFTER NOON.
  MAX TEMPERATURE.....91-96.
  MIN HUMIDITY........15-20 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 5-10 MPH THIS MORNING
                      BECOMING 5-15 MPH WITH GUSTS TO 20-25 MPH
                      IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....71-73.
  MAX HUMIDITY........41-43 PERCENT.
  WINDS - 20-FOOT.....SOUTH WINDS 5-15 MPH WITH GUSTS TO 20 MPH
                      EARLY THIS EVENING SHIFTING TO THE NORTHEAST
                      AT 5-10 MPH AFTER MIDNIGHT.

.OUTLOOK FOR MONDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......790.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
                      THE AFTERNOON.
  MAX TEMPERATURE.....89-94.
  MIN HUMIDITY........17-22 PERCENT.
  WINDS - 20-FOOT.....NORTHEAST WINDS 5-10 MPH EARLY IN THE
                      MORNING BECOMING SOUTHWEST 5-15 MPH WITH GUSTS
                      TO 20 MPH IN THE AFTERNOON.



FORECASTER...GRAHAM
REQUESTED BY...IC
REASON FOR REQUEST...PRESCRIBED
.TAG 20120805.WESTM.01/SLC

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