FNUS75 KSLC 301458
FWSSLC

SPOT FORECAST FOR HELLS HOLLOW RX
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
858 AM MDT SUN SEP 30 2012

.DISCUSSION...HIGH PRESSURE ALOFT STRENGTHENING JUST OFF THE WEST
COAST WILL LEAVE NORTHERN UTAH UNDER A DRY AND STABLE NORTH-
NORTHWEST FLOW THROUGH EARLY TUESDAY. SMOKE DISPERSAL WILL BE AN
ISSUE THROUGH AT LEAST MONDAY OWING TO THE STABLE CONDITIONS AND
LIGHT TRANSPORT WINDS THROUGH THE MIXING LAYER.

A WEATHER DISTURBANCE MOVING SOUTHEAST INTO THE NORTHERN ROCKIES
TUESDAY NIGHT WILL SWEEP SOUTHEAST ALONG THE CONTINENTAL DIVIDE
WEDNESDAY. THE ASSOCIATED SURFACE COLD FRONT WILL ENTER FAR
NORTHERN UTAH LATE TUESDAY NIGHT OR EARLY WEDNESDAY MORNING. THIS
FRONT WILL LIKELY BE DRY...OR PRODUCE ONLY SPOTTY LIGHT SHOWERS AS
IT PASSES THE FIRE SITE. WINDS WILL BE THE ISSUE WITH THIS FEATURE.
A PERIOD OF ENHANCED WEST-SOUTHWEST WINDS SHORTLY BEFORE FRONTAL
PASSAGE WILL BE FOLLOWED BY SEVERAL HOURS OF STRONG NORTH WINDS
THROUGH EARLY WEDNESDAY EVENING. A SECOND ENERGETIC WEATHER
DISTURBANCE WILL ARRIVE LATE IN THE WEEK...AND WILL OFFER A
SOMEWHAT IMPROVED CHANCE OF PRECIPITATION.

.TODAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......550.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....69-72.
  MIN HUMIDITY........19-22 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 3 TO 6 MPH...INCREASING
                      NORTH-NORTHWEST 8 TO 14 MPH DURING THE
                      AFTERNOON. GUSTS NEAR 25 MPH AFTER 1400.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....34-36.
  MAX HUMIDITY........66-69 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 6 TO 12 MPH SHIFTING TO THE
                      NORTH 5 MPH AFTER 2100.

.OUTLOOK FOR MONDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......280.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....70-73
  MIN HUMIDITY........18-21 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 2 TO 5 MPH...BECOMING WEST
                      NORTHWEST 5 TO 10 MPH AFTER 1000. BRIEF GUSTS
                      TO 18 MPH AFTER 1500.



FORECASTER...CONGER
REQUESTED BY...Scott Robison
REASON FOR REQUEST...PRESCRIBED
.TAG 20121002.HELLS.01/SLC

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