FNUS75 KSLC 171504
FWSSLC

SPOT FORECAST FOR OGDEN BAY
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
804 AM MST TUE NOV 17 2009

.DISCUSSION...HIGH PRESSURE TODAY AND THURSDAY WILL KEEP
CLEARING INDICES LOW AND WINDS LIGHT. A COLD FRONT WILL MOVE
THROUGH THE AREA LATE WEDNESDAY AFTERNOON INTO THE EVENING...BUT
THE TIMING AND STRENGTH OF THIS FRONT WILL NOT BE ENOUGH TO
CREATE GOOD MIXING IN THE VALLEYS DURING THE DAY WEDNESDAY.

AS FAR AS FRIDAY GOES...SOUTHWESTERLY WINDS ALOFT WILL INCREASE
SIGNIFICANTLY THROUGH THE DAY FRIDAY AHEAD OF AN APPROACHING
PACIFIC STORM...AND THE ONLY QUESTION IS WHETHER MIXING WILL BE
STRONG ENOUGH TO SUFFICIENTLY MIX AWAY THE VALLEY INVERSION.
DETAILS ARE A LITTLE LESS CERTAIN THIS FAR OUT AND MAY BE SUBJECT
TO CHANGE...BUT AT THIS POINT CLEARING INDEX VALUES LOOK TO BE AT
OR JUST SLIGHTLY ABOVE 500 AT THE BURN SITE ON FRIDAY.

.TODAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......70.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....44-46.
  MIN HUMIDITY........49-51 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH...BECOMING
                      UPSLOPE/UPVALLEY IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....27-29.
  MAX HUMIDITY........75-77 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE WINDS BECOMING EAST 5 MPH.

.OUTLOOK FOR WEDNESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......130.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....46-48.
  MIN HUMIDITY........43-45 PERCENT.
  WINDS - 20-FOOT.....EAST WINDS 5 MPH EARLY IN THE MORNING
                      BECOMING LIGHT AND VARIABLE...THEN BECOMING
                      NORTHWEST 5 TO 10 MPH LATE IN THE AFTERNOON.



FORECASTER...SCHOENING
REQUESTED BY...RUTTER
REASON FOR REQUEST...PRESCRIBED
.TAG 20091117.OGDEN.01/SLC

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