FNUS75 KSLC 132244
FWSSLC

SPOT FORECAST FOR BIG POLE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
444 PM MDT THU AUG 13 2009

...RED FLAG WARNING FROM NOON FRIDAY TO MIDNIGHT MDT FRIDAY
NIGHT...

.DISCUSSION...A COLD PACIFIC TROUGH ENTERING THE PACIFIC
NORTHWEST WILL MOVE EAST ACROSS THE NORTHERN ROCKIES/NORTHERN
GREAT BASIN FRIDAY NIGHT THROUGH SATURDAY. THE ASSOCIATED COLD FRONT
WILL REACH FAR NORTHWEST UTAH LATE FRIDAY AFTERNOON. THIS FRONT WILL
PRODUCE STRONG SOUTHERLY WINDS AND LOW RH VALUES AT THE SITE DURING
THE DAY. THE FRONT WILL SWEEP THROUGH THE FIRE SITE BY MIDEVENING
FRIDAY...BRINGING A PERIOD OF STRONG NORTHWEST WINDS AND INCREASING
RH VALUES THROUGH THE BALANCE OF FRIDAY NIGHT. MUCH COOLER
TEMPERATURES AND HIGHER RH VALUES WILL FOLLOW FOR THE WEEKEND.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........5 ..MODERATE.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT.
  MIN TEMPERATURE.....62-64 (4500 FEET)
                      54-56 (7800 FEET).
  MAX HUMIDITY........34-36 PERCENT (4500 FEET)
                      46-49 PERCENT (7800 FEET).
  WINDS - 20-FOOT.....SOUTH WINDS 10 TO 15 MPH...GUSTS TO 22 MPH.
                      WINDS BECOMING DRAINAGE 5 TO 10 MPH AFTER
                      0200.

.FRIDAY...
  LAL.................1 UNTIL 1400...THEN 2.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                      AFTER 1400.
  MAX TEMPERATURE.....93-95 (4500 FEET)
                      89-92 (7800 FEET).
  MIN HUMIDITY........8-11 PERCENT (4500 FEET)
                      17-19 PERCENT (7800 FEET).
  WINDS - 20-FOOT.....WINDY. UPSLOPE 5 TO 8 MPH WEST SLOPES AND
                      3 TO 6 MPH EAST SLOPES UNTIL 0900. SOUTH
                      SOUTHWEST WINDS 12 TO 18 MPH WITH GUSTS TO 22
                      MPH 0900-1400...THEN SOUTH WINDS 18 TO 24 MPH
                      WITH GUSTS TO 32 MPH AFTER 1400.

.OUTLOOK FOR SATURDAY...
  LAL.................3.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS.
  MAX TEMPERATURE.....70-73 (4500 FEET)
                      59-63 (7800 FEET)
  MIN HUMIDITY........31-33 PERCENT (4500 FEET)
                      42-45 PERCENT (7800 FEET).
  WINDS - 20-FOOT.....NORTHWEST WINDS 10 MPH...BECOMING NORTH
                      15 TO 20 MPH IN THE AFTERNOON.


FORECASTER...CONGER
REQUESTED BY...GARY PECK
REASON FOR REQUEST...WILDFIRE
.TAG 20090813.BIGPO.03/SLC

$$