FNUS75 KSLC 020110
FWSSLC

SPOT FORECAST FOR TWITCHELL CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
710 PM MDT WED SEP 1 2010

.DISCUSSION...HIGH PRESSURE ALOFT CENTERED ACROSS THE REGION WILL
MAINTAIN WARN AND DRY CONDITIONS INTO SATURDAY. AN ENERGETIC UPPER
LEVEL TROUGH ENTERING THE PACIFIC NORTHWEST LATE SATURDAY WILL
PRODUCE INCREASING SOUTHWEST WINDS ACROSS THE GREAT BASIN SUNDAY.
THIS TROUGH MAY ALSO DRAW MOISTURE NORTHWARD...BRINGING A THREAT FOR
THUNDERSTORMS TO THE SITE SUNDAY AFTERNOON.

.TONIGHT...
  LAL.................1.
  CWR.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....AT 8000 FEET 48-50.
                      AT 10000 FEET 38-40.
  MAX HUMIDITY........AT 8000 FEET 38-41 PERCENT.
                      AT 10000 FEET 42-44 PERCENT
  WINDS - 20-FOOT.....WEST NORTHWEST WINDS 6 TO 12 MPH...SHIFTING
                      TO THE SOUTHEAST WINDS 4 TO 8 MPH AFTER 2200.
  WINDS - RIDGETOP....NORTH NORTHWEST WINDS 6 TO 12 MPH....GUSTS TO
                      18 MPH UNTIL 2100.

.THURSDAY...
  LAL.................1.
  CWR.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......420.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 71-73.
                      AT 10000 FEET 65-67.
  MIN HUMIDITY........AT 8000 FEET 15-17 PERCENT.
                      AT 10000 FEET 18-20 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 5 MPH SHIFTING TO THE NORTH
                      5 TO 10 MPH BY LATE MORNING.
  WINDS - RIDGETOP....NORTH WINDS 6 TO 12 MPH...GUSTS TO 18 MPH LATE
                      AFTERNOON.

.OUTLOOK FOR FRIDAY...
  LAL.................1.
  CWR.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......560.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 72-74.
                      AT 10000 FEET 65-68.
  MIN HUMIDITY........AT 8000 FEET 13-15 PERCENT.
                      AT 10000 FEET 16-19 PERCENT.
  WINDS - 20-FOOT.....SOUTH WINDS 5 MPH SHIFTING TO THE NORTHEAST
                      AROUND 0900. WINDS BECOMING WEST SOUTHWEST
                      6 TO 10 MPH AFTER 1300.
  WINDS - RIDGETOP....WEST WINDS 6 TO 12 MPH...GUSTS TO 16 MPH LATE
                      AFTERNOON.


.OUTLOOK FOR SATURDAY...
  LAL.................1.
  CWR.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......850.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....AT 8000 FEET 74-76.
                      AT 10000 FEET 66-68.
  MIN HUMIDITY........AT 8000 FEET 11-13 PERCENT.
                      AT 10000 FEET 10-13 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 5 TO 8 MPH...INCREASING TO 10
                      TO 15 MPH WITH GUSTS TO 23 MPH AFTER 1100.
  WINDS - RIDGETOP....WEST SOUTHWEST WINDS 14 TO 18 MPH WITH GUSTS TO
                      28 MPH.

.OUTLOOK FOR SUNDAY...
  LAL.................1.
  CWR.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+
  SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT CLOUD COVER)...
                      THEN PARTLY CLOUDY (30-40 PERCENT CLOUD COVER)
                      AFTER 1200.
  MAX TEMPERATURE.....AT 8000 FEET 72-75.
                      AT 10000 FEET 65-67.
  MIN HUMIDITY........AT 8000 FEET 12-14 PERCENT.
                      AT 10000 FEET 13-16 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 8 TO 12 MPH...INCREASING TO 12
                      TO 16 MPH WITH GUSTS TO 24 MPH AFTER 1000.
  WINDS - RIDGETOP....SOUTHWEST WINDS 18 TO 24 MPH WITH GUSTS TO 35
                      MPH.





FORECASTER...CONGER
REQUESTED BY...Ryan McCollin
REASON FOR REQUEST...WILDFIRE
.TAG 20100901.TWITC.01/SLC

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