FNUS75 KSLC 171021
FWSSLC

SPOT FORECAST FOR PRETTY TREE BENCH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
421 AM MDT TUE MAY 17 2011

.DISCUSSION...MAJOR UPPER LEVEL TROUGH SLOWLY MAKING ITS WAY INTO
THE GREAT BASIN. SEVERAL LOBES OF ENERGY WILL ACCOMPANY THIS
SYSTEM OVER THE NEXT COUPLE OF DAYS. ONE OF THESE SUCH LOBES IS
TRANSLATING ACROSS CENTRAL AND NORTHERN UTAH THIS MORNING WITH A
BREAK ACROSS THE SOUTH. HOWEVER...BY MID AFTERNOON THE NEXT PIECE
OF ENERGY ASSOCIATED WITH THE INCOMING JET WILL CAUSE WINDS TO
INCREASE AS WELL AS CAUSE CONVECTION TO DEVELOP ACROSS YOUR AREA
AFTER ABOUT 1500. THE CORE OF THE MAIN STORM SYSTEM MOVES OVERHEAD
WEDNESDAY FOR WIDESPREAD RAIN AND SNOW SHOWERS.

.TODAY...
  LAL.................1 UNTIL NOON...THEN 2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER).
                      SCATTERED SNOW SHOWERS. A SLIGHT CHANCE OF
                      THUNDERSTORMS AFTER NOON.
  MAX TEMPERATURE.....45-47.
  MIN HUMIDITY........37-39 PERCENT.
  WINDS - 20-FOOT.....BREEZY. SOUTHWEST WINDS 5-8 MPH WITH GUSTS
                      TO 15 MPH UNTIL ABOUT 1000. WINDS INCREASE TO
                      10-15 MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........2 ..VERY LOW.
  SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER). A
                      CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
                      THUNDERSTORMS UNTIL MIDNIGHT. A CHANCE OF
                      SNOW SHOWERS.
  MIN TEMPERATURE.....31-33.
  MAX HUMIDITY........78-80 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 15 TO 20 MPH DECREASING TO 10
                      MPH AFTER MIDNIGHT.

.OUTLOOK FOR WEDNESDAY...
  LAL.................2.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........CLOUDY (95-100 PERCENT CLOUD COVER). SNOW
                      SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
  MAX TEMPERATURE.....41-43.
  MIN HUMIDITY........57-59 PERCENT.
  WINDS - 20-FOOT.....BREEZY. SOUTHWEST WINDS 10 TO 15 MPH
                      INCREASING TO 20 TO 25 MPH IN THE AFTERNOON.



FORECASTER...STRUTHWOLF
REQUESTED BY...CHANCE STEWART
REASON FOR REQUEST...PRESCRIBED
.TAG 20110517.PRETT.01/SLC

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