FNUS75 KSLC 131515
FWSSLC

SPOT FORECAST FOR LAKE FORK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
914 AM MDT THU AUG 13 2009

.DISCUSSION...HIGH PRESSURE ALOFT ACROSS THE SOUTHERN ROCKIES
WILL SHIFT EAST INTO THE SOUTHERN PLAINS STATES TODAY. AN ENERGETIC
PACIFIC TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST TODAY...THEN
SWING EAST THROUGH THE NORTHERN ROCKIES/NORTHERN GREAT BASIN LATE
FRIDAY THROUGH SATURDAY. AHEAD OF THE TROUGH LOOK FOR INCREASING
SOUTHWEST WINDS AND LOWER RH VALUES THROUGH FRIDAY AFTERNOON. THE
ASSOCIATED COLD FRONT WILL REACH NORTHWEST UTAH LATE FRIDAY...
PRODUCING STRONG SOUTHERLY WINDS AT THE SITE DURING THE DAY. THE
FRONT WILL SWEEP THROUGH THE FIRE SITE FRIDAY NIGHT...WITH A MINIMAL
THREAT FOR SHOWERS AND THUNDERSTORMS. MUCH COOLER TEMPERATURES AND
HIGHER RH VALUES WILL FOLLOW FOR THE WEEKEND.

.TODAY...
  LAL.................1 UNTIL 1100...THEN 2.
  HAINES INDEX........6 ..HIGH.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1100.
  MAX TEMPERATURE.....83-86.
  MIN HUMIDITY........21-23 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 8 TO 14 MPH...GUSTS TO 25 MPH.

.TONIGHT...
  LAL.................2 UNTIL 2200...THEN 1.
  HAINES INDEX........6 ..HIGH.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS...WITH ISOLATED THUNDERSTORMS
                      UNTIL 2200.
  MIN TEMPERATURE.....54-56.
  MAX HUMIDITY........55-58 PERCENT.
  WINDS - 20-FOOT.....WEST SOUTHWEST WINDS 6 TO 12 MPH WITH GUSTS TO
                      20 MPH.

.OUTLOOK FOR FRIDAY...
  LAL.................1 UNTIL NOON...THEN 3.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                      AFTERNOON.
  MAX TEMPERATURE.....81-83.
  MIN HUMIDITY........16-18 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 14 TO 18 MPH....GUSTS TO 32
                      MPH.



FORECASTER...CONGER
REQUESTED BY...Hal Stevens
REASON FOR REQUEST...WFU
.TAG 20090813.LAKEF.01/SLC

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