FNUS75 KSLC 311509
FWSSLC

SPOT FORECAST FOR TWIN HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
909 AM MDT MON AUG 31 2009

.DISCUSSION...A LOW PRESSURE SYSTEM IS MOVING ACROSS
SOUTHERN IDAHO INTO WYOMING AND MONTANA TODAY...WHICH WILL
ALLOW GUSTY WEST-SOUTHWESTERLY WINDS TO CONTINUE AT THE FIRE
THROUGH TODAY. HIGH PRESSURE WILL BEGIN BUILDING INTO THE
AREA TONIGHT AND THROUGH MUCH OF THE REST OF THE WEEK...LEADING
TO LIGHTER AND MORE TERRAIN-DRIVEN WINDS. A SLIGHT CHANCE OF
AFTERNOON THUNDERSTORMS WILL BEGIN TOMORROW AFTERNOON AND
CONTINUE INTO THE REST OF THE WEEK...WITH THE MOST LIKELY
IMPACT BEING BRIEF PERIODS OF GUSTY AND VARIABLE WINDS.

.TODAY...
  LAL.................1.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN PARTLY CLOUDY (35-45
                      PERCENT CLOUD COVER).
  MAX TEMPERATURE.....74-76.
  MIN HUMIDITY........16-19 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS
                      20 TO 25 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....52-54.
  MAX HUMIDITY........28-30 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 10 TO 15 MPH...BECOMING
                      DOWNSLOPE/DOWNVALLEY 4 TO 8 MPH AFTER
                      MIDNIGHT. RIDGETOP WINDS LIKELY
                      WEST-NORTHWEST 5 TO 10 MPH.

.OUTLOOK FOR TUESDAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (45-55 PERCENT CLOUD
                      COVER). A SLIGHT CHANCE OF SHOWERS AND
                      THUNDERSTORMS IN THE AFTERNOON.
  MAX TEMPERATURE.....72-75.
  MIN HUMIDITY........18-21 PERCENT.
  WINDS - 20-FOOT.....WEST-SOUTHWEST WINDS 5 TO 10 MPH.



FORECASTER...SCHOENING
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...WILDFIRE
.TAG 20090831.TWINH.01/SLC

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