FNUS75 KSLC 212254
FWSSLC

SPOT FORECAST FOR OGDEN BAY WMA RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
453 PM MDT TUE APR 21 2009

.DISCUSSION...HIGH PRESSURE WILL REMAIN THE DOMINANT WEATHER
FEATURE THROUGH THE FORECAST PERIOD BEFORE BREAKING DOWN THURSDAY
NIGHT. IN THE SHORT TERM...A WEAK LOW LEVEL TEMPERATURE INVERSION
ANTICIPATED FOR EARLY WEDNESDAY MORNING WILL RAPIDLY MIX BY 1100 AM
AT THE BURN SITE...ALLOWING CLEARING INDICES TO SOAR UP AND OVER
500 BY NOON. TRANSPORT WINDS WILL REMAIN WESTERLY AND GENERALLY
LIGHT THROUGH THE DAY AS HIGH PRESSURE CENTERS ITSELF OVER THE
STATE. THE HIGH PRESSURE RIDGE WILL FLATTEN SOME THURSDAY ALLOWING
A SLIGHT INCREASE OF MID AND HIGH LEVEL MOISTURE AND A NET INCREASE
OF SOUTHWESTERLY TRANSPORT WINDS. THAT SAID...IT IS ANTICIPATED
THAT CLEARING INDICES WILL REMAIN SLIGHTLY OVER 500 FOR THE LATE
MORNING AND AFTERNOON PERIOD. THE NEXT SIGNIFICANT THREAT FOR PRECIP
COMES FRIDAY AS ANOTHER PACIFIC COLD FRONT IS SLATED TO SAG IN FROM
THE NORTHWEST.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....51-53.
  MAX HUMIDITY........54-56 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 5
                      TO 10 MPH IN THE LATE EVENING AND EARLY
                      MORNING...THEN SHIFTING TO THE SOUTH LATE IN
                      THE NIGHT.

.WEDNESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......740.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....80.
  MIN HUMIDITY........17-21 PERCENT.
  WINDS - 20-FOOT.....SOUTH WINDS 5 MPH SHIFTING TO THE NORTHWEST
                      6-9 MPH AFTER 1 PM.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......570.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....80.
  MIN HUMIDITY........25-27 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 10 MPH SHIFTING TO THE
                      SOUTHWEST IN THE LATE MORNING AND AFTERNOON.



FORECASTER...MERRILL
REQUESTED BY...DAN AMES
REASON FOR REQUEST...PRESCRIBED
.TAG 20090423.OGDEN.01/SLC

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