FNUS75 KSLC 091550
FWSSLC

SPOT FORECAST FOR YELLOWSTONE SAGEBRUSH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
850 AM MST MON NOV 9 2009

.DISCUSSION...RIDGE ALOFT WILL BE BUILDING ACROSS THE REGION TODAY
BUT THERE REMAINS ENOUGH TRANSPORT WINDS FOR THE CLEARING INDEX TO
BE IN THE GOOD RANGE...MAINLY DUE TO THE HORIZONTAL DISPERSION
RATHER THAN VERTICAL DISPERSION WHICH IS SOMEWHAT CAPPED BY A VERY
WEAK INVERSION. THE RIDGE WILL MOVE EAST TONIGHT AND ALLOW AN
INCREASING SOUTHWEST FLOW ALOFT TO DEVELOP FOR TUESDAY AND
WEDNESDAY AHEAD OF AN APPROACHING TROUGH. THIS NEXT STORM SYSTEM
WILL MOVE IN ON THURSDAY BRINGING A RAIN AND SNOW MIXTURE ON
THURSDAY AND THEN SNOW THURSDAY NIGHT AND FRIDAY.

.TODAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......580.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER)THIS
                      MORNING WITH INCREASING HIGH CLOUDS THIS
                      AFTERNOON (60-75 PERCENT CLOUD COVER)
  MAX TEMPERATURE.....50-52.
  MIN HUMIDITY........24-26 PERCENT.
  WINDS - 20-FOOT.....NORTHEAST WINDS 5 TO 10 MPH EARLY IN THE
                      MORNING BECOMING UPSLOPE AT 5 TO 8 MPH THIS
                      AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....32-34.
  MAX HUMIDITY........54-57 PERCENT.
  WINDS - 20-FOOT.....BECOMING NORTHEAST AT 8 TO 12 MPH AFTER SUNSET.

.OUTLOOK FOR TUESDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....52-54.
  MIN HUMIDITY........26-28 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 MPH SHIFTING TO THE SOUTHWEST IN
                      THE MORNING...THEN INCREASING TO SOUTH 15 MPH
                      IN THE AFTERNOON.



FORECASTER...STRUTHWOLF
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...PRESCRIBED
.TAG 20091109.YELLO.01/SLC

$$