FNUS75 KSLC 051417
FWSSLC

SPOT FORECAST FOR HELLS HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
817 AM MDT FRI OCT 5 2012

.DISCUSSION...A COOL DRY NORTHWEST FLOW IS OVER NORTHERN UTAH
TODAY. THESE NORTHWEST WINDS ALOFT WILL SURFACE AT THE PROJECT
SITE BY LATE MORNING TODAY AND PROVIDE SUFFICIENT HORIZONTAL
TRANSPORT TO KEEP THE CLEARING INDEX ABOVE 500. THE AIRMASS
REMAINS COOL AND DRY SATURDAY BUT THE FLOW ALOFT WEAKENS AND LESS
WIND IS EXPECTED AT THE PROJECT SITE WITH CLEARING INDICES
REMAINING POOR. SOME WARMING IS FORECAST FOR SUNDAY BUT MIXING
WILL REMAIN POOR.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......640.
  SKY/WEATHER.........PARTLY CLOUDY (35-50 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....50.
  MIN HUMIDITY........19-21 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE UNTIL 1000 THEN
                      NORTHWEST 5-10 MPH INCREASING TO
                      15 MPH IN THE AFTERNOON.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....23-25.
  MAX HUMIDITY........54-56 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
                      NORTHEAST 5-10 AFTER MIDNIGHT...THEN SHIFTING
                      TO THE EAST 5-10 MPH EARLY IN THE MORNING.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......150.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....50.
  MIN HUMIDITY........17-19 PERCENT.
  WINDS - 20-FOOT.....EAST WINDS 5-10 MPH SHIFTING TO THE
                      SOUTHEAST 5 MPH LATE IN THE AFTERNOON.



FORECASTER...WILENSKY
REQUESTED BY...SCOTT ROBISON
REASON FOR REQUEST...PRESCRIBED
.TAG 20121005.HELLS.02/SLC

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