FNUS75 KSLC 312331
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
531 PM MDT TUE AUG 31 2010

.DISCUSSION...THE LAST OF THE UPPER TROUGH ACROSS THE NORTHERN GREAT
BASIN WILL EXIT OFF TO THE EAST OVERNIGHT. STRONG HIGH PRESSURE ALOFT
WILL DEVELOP ACROSS THE AREA BEGINNING EARLY THURSDAY...AND REMAIN
THROUGH AT LEAST SATURDAY. WINDS WILL BECOME MORE TERRAIN-DRIVEN
THURSDAY AND FRIDAY...THEN INCREASE SLIGHTLY OUT OF THE WEST
SOUTHWEST THIS WEEKEND.

.TONIGHT...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....AT 8000 FEET 45-47.
                      AT 10000 FEET 39-41.
  MAX HUMIDITY........AT 8000 FEET 37-40 PERCENT.
                      AT 10000 FEET 39-42 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 6 TO 12 MPH WITH GUSTS TO
                      20 MPH THROUGH 2100...THEN SOUTH SOUTHEAST
                      WINDS 4 TO 8 MPH.
  WINDS - RIDGETOP....WEST 8 TO 14 MPH.

.WEDNESDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......770.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 72-74.
                      AT 10000 FEET 67-69.
  MIN HUMIDITY........AT 8000 FEET 15-17 PERCENT.
                      AT 10000 FEET 15-18 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 4 TO 7 MPH....BECOMING
                      WEST SOUTHWEST 6 TO 12 MPH AFTER 1400.
  WINDS - RIDGETOP....WEST NORTHWEST 5 TO 10 MPH.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......420.
  SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 76-78.
                      AT 10000 FEET 69-72.
  MIN HUMIDITY........AT 8000 FEET 12-14 PERCENT.
                      AT 10000 FEET 13-16 PERCENT.
  WINDS - 20-FOOT.....DOWNSLOPE/DOWN VALLEY WINDS 3 TO 6 MPH...
                      BECOMING UPSLOPE/UP VALLEY 4 TO 8 MPH AFTER
                      1000.
  WINDS - RIDGETOP....NORTH NORTHWEST 4 TO 8 MPH.

.OUTLOOK FOR FRIDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......480.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 75-77.
                      AT 10000 FEET 71-73.
  MIN HUMIDITY........AT 8000 FEET 13-15 PERCENT.
                      AT 10000 FEET 13-15 PERCENT
  WINDS - 20-FOOT.....SOUTHEAST WINDS 4 TO 7 MPH....BECOMING WEST
                      SOUTHWEST 5 TO 10 PH AFTER 1000.
  WINDS - RIDGETOP....SOUTH SOUTHWEST 8 TO 12 MPH.

.OUTLOOK FOR SATURDAY...
  LAL.................1.
  CWR.................0 PERCENT.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......550.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 76-78.
                      AT 10000 FEET 71-73.
  MIN HUMIDITY........AT 8000 FEET 12-14 PERCENT.
                      AT 10000 FEET 12-15 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 6 TO 12 MPH...GUSTS
                      TO 18 MPH AFTER 1500.
  WINDS - RIDGETOP....WEST SOUTHWEST WINDS 14 TO 18 MPH.


FORECASTER...CONGER
REQUESTED BY...Richfield Dispatch
REASON FOR REQUEST...WILDFIRE
.TAG 20100831.TWITC.01/SLC

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