FNUS75 KSLC 211829
FWSSLC

SPOT FORECAST FOR BEAR RIVER 5B
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1229 PM MDT THU OCT 21 2010

.DISCUSSION...RELATIVELY STABLE CONDITIONS WITH LIGHT
TRANSPORT WINDS ARE IN PLACE TODAY...AS A LOW PRESSURE SYSTEM
MOVES WELL SOUTH OF THE AREA...ACROSS ARIZONA AND NEW MEXICO.
TRANSPORT WINDS WILL PICK UP A BIT TOMORROW AHEAD OF AN
APPROACHING PACIFIC STORM SYSTEM...BUT MIXING WILL NOT BE GOOD
ENOUGH TO GET CLEARING INDICES IN THE VALLEYS ABOVE 500. THE
AIRMASS OVER NORTHERN UTAH WILL MOISTEN SIGNIFICANTLY THROUGH THE
DAY FRIDAY...WHICH COULD LEAD TO STEADY OR RISING RELATIVE
HUMIDITY VALUES THROUGH THE DAY.

CLEARING WILL INCREASE SIGNIFICANTLY OVER THE WEEKEND AND INTO
THE BEGINNING OF NEXT WEEK...AS A PAIR OF STORMS MOVE THROUGH THE
AREA. BOTH OF THESE STORMS WILL BRING COLDER TEMPERATURES AND A
GOOD CHANCE OF WETTING RAIN.

.REST OF TODAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......160.
  SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....69-72.
  MIN HUMIDITY........20-23 PERCENT.
  WINDS - 20-FOOT.....WEST-NORTHWEST WINDS 3 TO 7 MPH.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....35-38.
  MAX HUMIDITY........84-87 PERCENT.
  WINDS - 20-FOOT.....LIGHT AND VARIABLE.

.OUTLOOK FOR FRIDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......420.
  SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....65-68.
  MIN HUMIDITY........36-40 PERCENT.
  WINDS - 20-FOOT.....WEST WINDS 5 TO 10 MPH.



FORECASTER...SCHOENING
REQUESTED BY...TRACY SWENSON
REASON FOR REQUEST...PRESCRIBED
.TAG 20101021.BEARR.01/SLC

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