FNUS75 KSLC 091503
FWSSLC

SPOT FORECAST FOR BOX CREEK FIRE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
903 AM MDT SAT JUN 9 2012

...RED FLAG WARNING FROM 10 PM FRIDAY TO 10 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY...

.DISCUSSION...ACTIVE DAY AHEAD ON THE FIRE WEATHER FRONT AS A STRONG
COLD FRONT APPROACHES FROM THE NORTHWEST. HUMIDITY TRENDS WILL BE
FALLING RAPIDLY THIS MORNING WITH WIND SPEEDS RAMPING UP LATE MORNING
THROUGH THE AFTERNOON. WIND DIRECTION WILL REMAIN SOUTHWEST FOR THE
TIME BEING THOUGH SHOULD TREND A BIT MORE TO THE WEST SOUTHWEST
THIS AFTERNOON WITH GUSTS APPROACHING THE 35 TO 45 MPH
RANGE FOR A FEW HOURS BETWEEN 1400-1700. PASSAGE OF THE COLD FRONT
WILL RAPIDLY SWITCH WINDS TO THE NORTHWEST WITH THESE HIGH GUSTS
REMAINING...POTENTIALLY INCREASING A BIT FOR A FEW HOURS. THIS WILL
OCCUR MOST LIKELY BETWEEN 1700 AND 2000. WIND TRENDS WILL EASE A BIT
OVERNIGHT WITH MUCH BETTER HUMIDITY RECOVERY AND SIGNIFICANT COOLING
TREND TAKING FORM.

WINDS WILL REMAIN NORTHERLY TONIGHT THROUGH SUNDAY NIGHT...HUMIDITY
TRENDS WILL RISE WITH SUNDAYS MINS AT LEAST 5 PERCENT HIGHER THAN
TODAYS. WEAK HIGH PRESSURE WILL WORK INTO THE AREA BEGINNING MONDAY
WITH A GRADUAL WARMING TREND TAKING FOR THROUGH MIDWEEK. LOOKS LIKE
MORE TYPICAL DIURNAL SLOPE FLOWS DURING THAT TIME.


.TODAY...
  LAL.................1.
  HAINES INDEX........5 ..MODERATE.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....61-63.
  MIN HUMIDITY........13-18 PERCENT.
  WINDS - 20-FOOT.....WINDY. SOUTHWEST WINDS 8 TO 15 MPH WITH GUSTS
                      NEARING 30 MPH BY LATE MORNING INCREASING
                      DURING THE AFTERNOON TO 30 MPH WITH GUSTS TO
                      AROUND 45 MPH LATE IN THE AFTERNOON. WINDS
                      SWITCH TO THE NORTHWEST AS EARLY AS 1700

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....29-33.
  MAX HUMIDITY........48-50 PERCENT.
  WINDS - 20-FOOT.....WINDY. NORTHWEST WINDS 25 TO 30 MPH WITH GUSTS
                      UP TO 50 MPH EARLY DECREASING TO 15 MPH AFTER
                      MIDNIGHT.

.OUTLOOK FOR SUNDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....50-55.
  MIN HUMIDITY........16-18 PERCENT.
  WINDS - 20-FOOT.....NORTH WINDS 10 MPH SHIFTING TO THE NORTHWEST
                      IN THE AFTERNOON. OCCASIONAL GUSTS TO 25 MPH
                      EXPECTED.



FORECASTER...MERRILL
REQUESTED BY...RYAN MCCOLLIN
REASON FOR REQUEST...WILDFIRE
.TAG 20120609.BOXCR.01/SLC

$$