FNUS75 KSLC 042223
FWSSLC

SPOT FORECAST FOR SAWMILL
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
423 PM 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 EVENING...
WITH SIMILAR SHOWERS/THUNDERSTORMS EXPECTED AGAIN SATURDAY. WINDS
WILL BE TERRAIN THIS EVENING...THOUGH SHOWERS/STORMS WILL CREATE
LOCAL ERRATIC WIND CONDITIONS THROUGH EARLY THIS EVENING. INCREASING
SOUTHWEST WINDS ALOFT COMBINED WITH A WEAK COLD FRONT APPROACHING
NORTHWEST UTAH LATE THIS WEEKEND WILL RESULT IN BREEZY CONDITIONS...
ESPECIALLY SUNDAY AND MONDAY. DRIER AIR WILL MOVE INTO THE FIRE
SITE AS THE WINDS INCREASE ON SUNDAY.

.TONIGHT...
  LAL.................3 UNTIL 2200...THEN 2.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND THUNDERSTORMS UNTIL
                      2200...THEN ISOLATED SHOWERS AND
                      THUNDERSTORMS AFTER 2200.
  MIN TEMPERATURE.....63-66.
  MAX HUMIDITY........41-43 PERCENT.
  WINDS - 20-FOOT.....EAST SOUTHEAST 4 TO 8 MPH...BECOMING WEST
                      NORTHWEST 5 TO 8 MPH AFTER 2100.
  WINDS - RIDGELINE...EAST NORTHEAST 5 TO 10 MPH...BECOMING SOUTHEAST
                      8 TO 14 MPH AFTER 0300.

.SATURDAY...
  LAL.................1 UNTIL 1000...THEN 3.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......850.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1100.
  MAX TEMPERATURE.....84-87.
  MIN HUMIDITY........18-21 PERCENT.
  WINDS - 20-FOOT.....SOUTH SOUTHEAST WINDS 3 TO 7 MPH INCREASING TO
                      10 TO 15 MPH AFTER 1000.
  WINDS - RIDGELINE...SOUTH SOUTHWEST 12 TO 18 MPH.

.OUTLOOK FOR SUNDAY...
  LAL.................1 UNTIL 1200...THEN 3.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1200.
  MAX TEMPERATURE.....84-87.
  MIN HUMIDITY........15-18 PERCENT.
  WINDS - 20-FOOT.....SOUTH SOUTHEAST WINDS 4 TO 8 MPH INCREASING TO
                      10 TO 15 MPH AFTER 1000.
  WINDS - RIDGELINE...SOUTHWEST 15 TO 25 MPH.

.OUTLOOK FOR EARLY NEXT WEEK...

LITTLE CHANGE MONDAY FROM SUNDAY. FOR TUESDAY RH VALUES MAY CLIMB
SLIGHTLY AS SOME MOISTURE GENERATES A FEW BUILD-UPS OVER THE HIGHER
TERRAIN. TEMPERATURES WILL BE DOWN A COUPLE OF DEGREES DUE TO THE
AFTERNOON CLOUD COVER. WINDS WILL BE DOWN SLIGHTLY OVER THE
RIDGELINES...WITH TERRAIN DRIVEN WINDS MORE COMMON AT THE LOWER
ELEVATIONS.


FORECASTER...CONGER
REQUESTED BY...Gayle Sorenson  FBAN
REASON FOR REQUEST...WILDFIRE
.TAG 20090904.SAWMI.01/SLC

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