FNUS75 KSLC 061739 CCA
FWSSLC

SPOT FORECAST FOR TWIN HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1138 AM MDT SUN SEP 6 2009

.DISCUSSION...A COLD FRONT CURRENTLY OVER THE PACIFIC NORTHWEST WILL
MOVE EAST AND SETTLE INTO EXTREME NORTHERN UTAH BY EARLY MONDAY
MORNING. INCREASING SOUTHWEST WINDS ALOFT WILL SERVE TO MAINTAIN
MODERATE TO STRONG SOUTHWEST WINDS AT THE SITE THROUGH MONDAY.
RESIDUAL MOISTURE ACROSS NORTHEAST UTAH PRODUCE CUMULUS BUILDUPS
OVER THE HIGHER TERRAIN BEGINNING LATE THIS MORNING...WITH SCATTERED
SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON. WETTING RAINS ARE
POSSIBLE...THOUGH THE AREAL COVERAGE OF THESE RAINS WILL BE SPOTTY
AT BEST. DRIER AIR WILL MOVE IN OVERNIGHT...REDUCING THE THREAT FOR
PRECIPITATION MONDAY. STRONG HIGH PRESSURE ALOFT WILL SETTLE OVER
THE INTERIOR WEST MIDWEEK. UNSEASONABLY WARM AND DRY CONDITIONS ARE
EXPECTED WITH THE HIGH PRESSURE HEADING INTO THE LATTER HALF OF THE
WEEK.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 3.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT CLOUD COVER)
                      UNTIL 1300...THEN PARTLY CLOUDY (55-65
                      PERCENT CLOUD COVER). SCATTERED SHOWERS AND
                      THUNDERSTORMS.
  MAX TEMPERATURE.....68-70.
  MIN HUMIDITY........41-44 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO 35 MPH.

.TONIGHT...
  LAL.................3 UNTIL 2000...THEN 1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER)
                      UNTIL 2200...THEN PARTLY CLOUDY (20-30
                      PERCENT CLOUD COVER). SCATTERED SHOWERS AND
                      THUNDERSTORMS UNTIL 2000...THEN ISOLATED
                      SHOWERS UNTIL 2300.
  MIN TEMPERATURE.....51-53
  MAX HUMIDITY........72-75 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 14 TO 18 MPH WITH GUSTS TO
                      28 MPH.

.OUTLOOK FOR MONDAY...
  LAL.................1 UNTIL 1300...THEN 2.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER 1300.
  MAX TEMPERATURE.....68-72.
  MIN HUMIDITY........29-31 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 18 TO 22 MPH WITH GUSTS
                      TO 35 MPH.



FORECASTER...CONGER
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...WILDFIRE
.TAG 20090906.TWINH.01/SLC

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