FNUS75 KSLC 151351
FWSSLC

SPOT FORECAST FOR DAVES HOLLOW RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
751 AM MDT WED SEP 15 2010

.DISCUSSION...A WEAK UPPER LEVEL WEATHER DISTURBANCE OVER SOUTHERN
CALIFORNIA THIS MORNING WILL MOVE EAST ACROSS SOUTHERN UTAH TONIGHT.
PATCHY MOISTURE AHEAD OF THIS FEATURE RESULT DEVELOP INTO CUMULUS
BUILDUPS OVER THE HIGHER TERRAIN DURING THE AFTERNOON...WITH A
SLIGHT CHANCE OF SHOWERS/THUNDERSTORMS FORMING LATE THIS AFTERNOON
THROUGH THIS EVENING. STRENGTHENING HIGH PRESSURE ALOFT LATE THIS
WEEK WILL RESULT IN A CONTINUATION OF WARM AND GENERALLY DRY
CONDITIONS HEADING INTO THE WEEKEND.

TRANSPORT WINDS...WINDS THROUGH THE MIXING DEPTH WILL REMAIN
SUFFICIENTLY STRONG TO KEEP CLEARING INDICES HIGH TODAY. TRANSPORT
WINDS THROUGH THE MIXING DEPTH WILL DROP SUBSTANTIALLY THURSDAY...
ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS. THE CURRENTLY
CLEARING INDEX FORECAST FOR THURSDAY REMAINS FAIRLY HIGH DUE TO THE
DEPTH OF THE MIXING LAYER. IF A MORE STABLE AIRMASS FOLLOWS THE
WEATHER DISTURBANCE MOVING THROUGH TONIGHT...THEN THE INDICES WILL
HAVE TO BE LOWERED. TRANSPORT WINDS WILL PICK UP FRIDAY...RESULTING
IN A MUCH HIGH CLEARING INDEX.


.TODAY...
  LAL.................1 UNTIL 1400...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......990.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER) UNTIL
                      NOON...THEN PARTLY CLOUDY (35-45 PERCENT
                      CLOUD COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS AFTER 1400.
  MAX TEMPERATURE.....74-76.
  MIN HUMIDITY........15-18 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 4 TO 8 MPH...INCREASING
                      TO 8 TO 12 MPH AFTER 1200. OCCASIONAL GUSTS TO
                      18 MPH AFTER 1500.

.TONIGHT...
  LAL.................2 UNTIL 2400...THEN 1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      UNTIL 2400.
  MIN TEMPERATURE.....35-37.
  MAX HUMIDITY........64-67 PERCENT.
  WINDS - 20-FOOT.....SOUTH SOUTHWEST WINDS 5 TO 10 DURING THE
                      EVENING...WEST WINDS 5 TO 10 MPH. AFTER
                      MIDNIGHT.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......650.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....75-77.
  MIN HUMIDITY........14-16 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 MPH SHIFTING TO THE SOUTHWEST 8TO
                      12 MPH IN THE AFTERNOON.



FORECASTER...CONGER
REQUESTED BY...Trevor Frandsen
REASON FOR REQUEST...PRESCRIBED
.TAG 20100915.DAVES.01/SLC

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