FNUS75 KSLC 211500
FWSSLC

SPOT FORECAST FOR JOHNSONS PASS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
900 AM MDT TUE APR 21 2009

.DISCUSSION...HIGH PRESSURE REMAINS OVER UTAH. THIS PATTERN WILL
REMAIN THROUGH FRIDAY. WINDS WILL INCREASE A LITTLE TODAY AS
EVIDENT IN THE HIGHER CLEARING INDICES ALTHOUGH ONLY BORDER LINE
GOOD. THE CLEARING INDEX WILL REACH 500 LATE THIS AFTERNOON
BRIEFLY. WEAK SYSTEMS EMBEDDED IN THE WEST TO NORTHWEST FLOW ALOFT
WILL SLIP THROUGH UTAH FROM TIME TO TIME OVER THE NEXT FEW DAYS
BUT ONLY SERVE TO PRODUCE A FEW CUMULUS CLOUDS OVER HIGHER
TERRAIN. CLEARING INDICES WILL BE EXCELLENT WEDNESDAY AND THURSDAY AS
A RESULT OF THE INCREASED SOUTHWEST FLOW WHICH WILL CONTINUE INTO
FRIDAY AS THE NEXT STRONGER SYSTEM IS EXPECTED LATE FRIDAY AND
INTO SATURDAY. THIS SYSTEM WILL LIKELY BE A PRECIPITATION
PRODUCER.

.TODAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......500.
  SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....71-73.
  MIN HUMIDITY........18-20 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 5 MPH IN THE MORNING BECOMING
                      LIGHT AND VARIABLE...THEN BECOMING NORTHWEST
                      5 MPH LATE IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....44-46.
  MAX HUMIDITY........55-57 PERCENT.
  WINDS - 20-FOOT.....NORTH WINDS 10 MPH SHIFTING TO THE NORTHWEST
                      LATE IN THE EVENING...THEN SHIFTING TO THE
                      SOUTHEAST AFTER MIDNIGHT.

.OUTLOOK FOR WEDNESDAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......990.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (35-45 PERCENT CLOUD
                      COVER).
  MAX TEMPERATURE.....76-78.
  MIN HUMIDITY........20-22 PERCENT.
  WINDS - 20-FOOT.....SOUTH WINDS 5 TO 10 MPH DECREASING A BIT BY
                      EARLY EVENING.



FORECASTER...YOUNG
REQUESTED BY...ADAM HEYDER
REASON FOR REQUEST...PRESCRIBED
.TAG 20090421.JOHNS.02/SLC

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