FNUS75 KSLC 192321
FWSSLC

SPOT FORECAST FOR PATTERSON PASS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
521 PM MDT TUE JUL 19 2011

...RED FLAG WARNING THROUGH MIDNIGHT MDT TONIGHT FOR GUSTY WINDS
AND LOW RELATIVE HUMIDITY...

.DISCUSSION...THE COLD FRONT THAT SWEPT THROUGH THE FIRE LATE
THIS AFTERNOON SHOULD KEEP WINDS OUT OF THE WEST-NORTHWEST
THROUGH THE REST OF THE EVENING...WITH SLOWLY DECREASING WIND
SPEEDS THROUGH THE OVERNIGHT HOURS. THE PASSAGE OF THIS FRONT
ALSO INDICATES THE END OF THE SHOWER AND THUNDERSTORM THREAT FOR
THE DAY...AND SKIES SHOULD CONTINUE TO CLEAR RAPIDLY AS DRIER AIR
MOVES IN FROM THE WEST. THE WIND FORECAST FOR WEDNESDAY IS
SOMEWHAT UNCERTAIN DUE TO THE SHELTERED NATURE OF THE PASS...BUT
THE BEST BET IS FOR WESTERLY UPSLOPE WINDS TO DEVELOP THROUGH THE
AFTERNOON HOURS. TYPICAL DIURNAL TERRAIN WINDS SHOULD REMAIN IN
PLACE WEDNESDAY NIGHT AND THURSDAY...DOWNSLOPE/DOWNVALLEY AT
NIGHT AND UPSLOPE/UPVALLEY DURING THE DAY. OTHERWISE...DRY
CONDITIONS WITH LITTLE CLOUD COVER SHOULD PREVAIL THROUGH THE
NEXT COUPLE OF DAYS.


.TONIGHT...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER)
                      UNTIL MIDNIGHT...THEN CLEAR (0-5 PERCENT
                      CLOUD COVER).
  MIN TEMPERATURE.....49-51.
  MAX HUMIDITY........42-45 PERCENT.
  WINDS - 20-FOOT.....WINDY. WEST WINDS 20 TO 30 MPH WITH GUSTS UP TO
                      AROUND 45 MPH EARLY IN THE EVENING...BECOMING
                      NORTHWEST 15 TO 25 MPH LATE EVENING AND THROUGH
                      THE REST OF THE NIGHT.

.WEDNESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......590.
  SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....70-72.
  MIN HUMIDITY........20-22 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 TO 10 MPH.

.OUTLOOK FOR THURSDAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....75-77.
  MIN HUMIDITY........15-18 PERCENT.
  WINDS - 20-FOOT.....UPSLOPE/UPVALLEY 5 TO 10 MPH.



FORECASTER...SCHOENING
REQUESTED BY...ERIK HABERSTICK
REASON FOR REQUEST...WILDFIRE
.TAG 20110719.PATTE.01/SLC

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