FNUS75 KSLC 192329
FWSSLC

SPOT FORECAST FOR CLEAR TRAP
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
529 PM MDT SUN MAY 19 2013

.DISCUSSION...NORTHERLY FLOW ON THE BACK SIDE OF A DEPARTING
STORM SYSTEM WILL PREVAIL ACROSS THE AREA THROUGH MONDAY. THIS
NORTHERLY FLOW SHOULD BE SUFFICIENT TO BOOST CLEARING INDICES
ABOVE 500 DURING THE AFTERNOON. HIGH PRESSURE ALOFT WILL MOVE
ACROSS THE AREA ON TUESDAY LIMITING MIXING DEPTH
SOMEWHAT...HOWEVER CLEARING INDICES SHOULD EXCEED 500 LATER IN
THE AFTERNOON AS THE FLOW BECOMES MORE SOUTHWEST AND INCREASES
A BIT. A STRONGER SOUTHWESTERLY FLOW IS EXPECTED FROM WEDNESDAY
ON AS A STORM SYSTEM DEVELOPS UPSTREAM ALONG THE PACIFIC COAST.

.TONIGHT...
  LAL.................2 UNTIL MIDNIGHT...THEN 1.
  HAINES INDEX........3 ..VERY LOW.
  SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT CLOUD COVER).
                      SCATTERED SHOWERS AND A SLIGHT CHANCE OF
                      THUNDERSTORMS UNTIL MIDNIGHT.
  MIN TEMPERATURE.....34-36.
  MAX HUMIDITY........81-83 PERCENT.
  WINDS - 20-FOOT.....NORTH-NORTHWEST 3-8 MPH.

.MONDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......650.
  SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....65-67.
  MIN HUMIDITY........23-26 PERCENT.
  WINDS - 20-FOOT.....NORTH 2-5 MPH IN THE MORNING INCREASING TO
                      6-12 MPH WITH GUSTS TO 20 MPH DURING THE
                      AFTERNOON.

.OUTLOOK FOR TUESDAY...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  CLEARING INDEX......550.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER) THEN
                      BECOMING PARTLY CLOUDY (30-40 PERCENT CLOUD
                      COVER).
  MAX TEMPERATURE.....74-77.
  MIN HUMIDITY........13-16 PERCENT.
  WINDS - 20-FOOT.....NORTHEAST WINDS 5 MPH SHIFTING TO THE
                      SOUTHWEST 6-12 MPH IN THE AFTERNOON.



FORECASTER...SEAMAN
REQUESTED BY...JAMES COURTRIGHT
REASON FOR REQUEST...PRESCRIBED
.TAG 20130519.CLEAR.01/SLC

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