FNUS75 KSLC 041652
FWSSLC

SPOT FORECAST FOR TWIN HOLLOW
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1052 AM MDT FRI SEP 4 2009

.DISCUSSION...HIGH PRESSURE ALOFT OVER UTAH WILL MOVE EAST INTO
COLORADO ON SATURDAY. MOISTURE EMBEDDED WITHIN THE HIGH PRESSURE
WILL RESULT IN HIGHER TERRAIN SHOWERS/THUNDERSTORMS THIS AFTERNOON
AND EVENING...WITH SHOWERS/THUNDERSTORMS EXPECTED AGAIN SATURDAY.
WINDS TODAY WILL BE TERRAIN DRIVEN...THOUGH SHOWERS/STORMS WILL
CREATE LOCAL ERRATIC WIND CONDITIONS THROUGH EARLY THIS EVENING.
INCREASING SOUTHWEST WINDS ALOFT THIS WEEKEND WILL RESULT IN BREEZY
CONDITIONS...ESPECIALLY SUNDAY AND INTO MONDAY. DRIER AIR WILL ALSO
MOVE INTO THE FIRE SITE AS THE WINDS INCREASE LATE IN THE WEEKEND.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 3.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......880.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) UNTIL
                      1300...THEN PARTLY CLOUDY (56-65 PERCENT CLOUD
                      COVER) A CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER 1300.
  MAX TEMPERATURE.....72-75.
  MIN HUMIDITY........18-20 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE UNTIL 1200...THEN BECOMING
                      WEST SOUTHWEST 5 TO 10 MPH.

.TONIGHT...
  LAL.................3 UNTIL 2200...THEN 1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER)
                      UNTIL 2000...THEN PARTLY CLOUDY (25-35
                      PERCENT CLOUD COVER). A CHANCE OF SHOWERS AND
                      THUNDERSTORMS UNTIL 2200...THEN A SLIGHT
                      CHANCE OF SHOWERS.
  MIN TEMPERATURE.....54-57.
  MAX HUMIDITY........47-49 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 5 TO 10 MPH UNTIL 2200...
                      THEN EAST NORTHEAST 3 TO 7 MPH.

.OUTLOOK FOR SATURDAY...
  LAL.................1 UNTIL 1100...THEN 4.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......940.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER) UNTIL
                      1000..THEN BECOMING MOSTLY CLOUDY (75-85
                      PERCENT CLOUD COVER). A SLIGHT CHANCE OF
                      SHOWERS UNTIL 1100...THEN A CHANCE OF SHOWERS
                      AND THUNDERSTORMS AFTER 1100.
  MAX TEMPERATURE.....66-69.
  MIN HUMIDITY........27-29 PERCENT.
  WINDS - 20-FOOT.....EAST NORTHEAST 3 TO 7 MPH UNTIL 0900...
                      THEN WEST SOUTHWEST 8 TO 14 MPH. GUSTS TO 22
                      MPH AFTER 1200.


FORECASTER...CONGER
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...WILDFIRE
.TAG 20090904.TWINH.01/SLC

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