FNUS75 KSLC 151444
FWSSLC

SPOT FORECAST FOR LOST SPRING PILES
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
844 AM MDT MON MAR 15 2010

.DISCUSSION...HIGH PRESSURE WILL BUILD IN RAPIDLY FROM THE WEST
TODAY. LINGERING LOW CLOUD COVER IS EXPECTED TO DISSIPATE RAPIDLY
THIS MORNING...AN INDICATOR OF INCREASING LOW LEVEL STABILITY
JUST OFF THE SURFACE OF THE LOST SPRINGS PILES. THAT SAID...A
COMBINATION WEAK NORTHEASTERLY FLOW AND A RAPIDLY STABILIZING
AIRMASS WILL KEEP SUB 500 CLEARING INDEX VALUES THROUGH TODAY.
HIGH PRESSURE WILL CONTINUE TO STRENGTHEN AS IT BUILDS OVERHEAD
THROUGH WEDNESDAY SEVERELY LIMITING MIXING POTENTIAL ONCE AGAIN
THROUGH THAT TIME. LOOKING OUT...BEST BET FOR SIGNIFICANT
CLEARING INDEX IMPROVEMENT WILL COME THURSDAY NIGHT AND FRIDAY
AS A COLD FRONT WILL SURGE THROUGH THE REGION FROM THE NORTH.

.TODAY...
LAL...................1.
HAINES INDEX..........2 ..VERY LOW.
CLEARING INDEX........290.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER)
                      UNTIL NOON...THEN MOSTLY SUNNY (5-15 PERCENT
                      CLOUD COVER).
MAX TEMPERATURE.......37-40.
MIN HUMIDITY..........42-44 PERCENT.
WIND (20 FT)..........NORTHEAST WINDS 5 TO 10 MPH.

.TONIGHT...
LAL...................1.
HAINES INDEX..........2 ..VERY LOW.
SKY/WEATHER...........CLEAR (0-5 PERCENT CLOUD COVER).
MIN TEMPERATURE.......16-19.
MAX HUMIDITY..........79-81 PERCENT.
WIND (20 FT)..........NORTHEAST WINDS 5 MPH SHIFTING TO THE
                      SOUTHEAST IN THE LATE EVENING AND OVERNIGHT.

.OUTLOOK FOR TUESDAY...
LAL...................1.
HAINES INDEX..........3 ..VERY LOW.
CLEARING INDEX........310.
SKY/WEATHER...........SUNNY (0-5 PERCENT CLOUD COVER).
MAX TEMPERATURE.......41-44.
MIN HUMIDITY..........33-35 PERCENT.
WIND (20 FT)..........SOUTHEAST WINDS 5 TO 10 MPH.



FORECASTER...MERRILL
REQUESTED BY...SHANE BOWLING
REASON FOR REQUEST...PRESCRIBED
.TAG 20100315.LOSTS.01/SLC

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