FNUS75 KSLC 050439
FWSSLC

SPOT FORECAST FOR HELLS HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1039 PM MDT THU OCT 4 2012

.DISCUSSION...A COLD FRONT IS MOVING ACROSS THE HELLS HOLLOW FIRE
AREA RIGHT NOW AND BY FRIDAY MORNING WILL BE ACROSS THE UINTA
BASIN. THE SURFACE HIGH PRESSURE SYSTEM WILL BUILD OVER WYOMING
WHICH WILL PLACE AN EAST TO WEST SURFACE GRADIENT THROUGH LATE
MORNING BEFORE ANOTHER SURFACE HIGH BUILDS OVER SOUTH CENTRAL
IDAHO BY EARLY AFTERNOON AND BECOMES THE DOMINANT FEATURE.
THEREFORE EXPECT LIGHT UPSLOPE EAST NORTHEAST WINDS IN THE MORNING
THEN SHIFTING TO THE NORTHWEST ABOUT 1200-1300 MDT. WINDS WILL
ONLY BE ABOUT 5-10 KTS FROM THE WEST NORTHWEST NOT ONLY AT THE
SURFACE BUT UP THROUGH THE BASE OF THE INVERSION AT 10K FEET MSL.
CLEARING INDEX WILL ONLY REACH ABOUT 400 LATE IN THE DAY.

SATURDAY DOES NOT LOOK ANY BETTER AS FAR AS WINDS AND CLEARING
IDEX AS ANOTHER SURFACE HIGH BUILDS OVER WYOMING SETTING UP A
EASTERLY COMPONENT TO THE WINDS UP THROUGH ABOUT 10K FEET MSL.

.REST OF TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....27-29.
  MAX HUMIDITY........45-47 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 TO 10 MPH.

.FRIDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......400.
  SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....50.
  MIN HUMIDITY........19-21 PERCENT.
  WINDS - 20-FOOT.....NORTHEAST WINDS 5 MPH SHIFTING TO THE
                      WEST EARLY IN THE AFTERNOON INCREASING
                      5-10 MPH LATE IN THE AFTERNOON.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......150.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....47-49.
  MIN HUMIDITY........18-20 PERCENT.
  WINDS - 20-FOOT.....EAST WINDS 5 TO 10 MPH.



FORECASTER...STRUTHWOLF
REQUESTED BY...SCOTT ROBISON
REASON FOR REQUEST...PRESCRIBED
.TAG 20121005.HELLS.01/SLC

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