FNUS75 KSLC 171253
FWSSLC

SPOT FORECAST FOR HENRIE KNOLLS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
653 AM MDT MON MAY 17 2010

.DISCUSSION...MILD SOUTHERLY FLOW IS OVER SOUTHERN UTAH TODAY
AHEAD OF A PACIFIC STORM. THE COLD FRONT WITH THIS SYSTEM WILL
CROSS THE PROJECT SITE AROUND MID AFTERNOON BUT WINDS WILL ONLY
SHIFT FROM SOUTHERLY TO SOUTHWESTERLY.

THERE IS A SMALL CHANCE OF A HIGH BASED DRY THUNDERSTORM THIS
AFTERNOON THAT WOULD PRODUCE LITTLE IF ANY RAIN BUT COULD
GENERATE BRIEF STRONG GUSTY WINDS.

STEADIER PRECIPITATION IS EXPECTED TO DEVELOP DURING THE PRE DAWN
HOURS TUESDAY AND SHOULD START AS RAIN BUT WILL MIX WITH OR
CHANGE OVER TO SNOW DURING THE DAY. THE RAIN AND SNOW WILL TAPER
OFF TUESDAY EVENING WITH A COOL STABLE AIRMASS SPREADING IN
OVERNIGHT AND REMAINING IN PLACE ON WEDNESDAY.

WATER AMOUNTS OF PRECIPITATION SHOULD BE IN THE 0.10 TO 0.30 INCH
RANGE... WITH SOME OF THIS FALLING AS SNOW. SNOW ACCUMULATION
SHOULD BE IN THE 1 TO 3 INCH RANGE.


.TODAY...
LAL...................1 UNTIL NOON...THEN 2.
HAINES INDEX..........4 ..LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........PARTLY CLOUDY (45-55 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS AFTER
                      NOON.
MAX TEMPERATURE.......61-64.
MIN HUMIDITY..........18-23 PERCENT.
WIND (20 FT)..........BREEZY. LIGHT AND VARIABLE WINDS BECOMING
                      SOUTHEAST 15 MPH LATE IN THE MORNING...THEN
                      INCREASING TO SOUTHWEST 20-25 MPH IN THE
                      AFTERNOON. ERRATIC GUSTS TO 40 MPH POSSIBLE
                      NEAR ANY SHOWERS.

.TONIGHT...
LAL...................2 UNTIL MIDNIGHT...THEN 1.
HAINES INDEX..........3 ..VERY LOW.
SKY/WEATHER...........MOSTLY CLOUDY (80-90 PERCENT CLOUD COVER).
                      ISOLATED SHOWERS AND THUNDERSTORMS UNTIL
                      MIDNIGHT. SCATTERED RAIN SHOWERS
                      AFTER MIDNIGHT...POSSIBLY MIXING WITH SNOW
                      AROUND DAYBREAK.
MIN TEMPERATURE.......35-37.
MAX HUMIDITY..........77-79 PERCENT.
WIND (20 FT)..........SOUTHWEST WINDS 10 TO 15 MPH.

.OUTLOOK FOR TUESDAY...
LAL...................1 UNTIL NOON...THEN 2.
HAINES INDEX..........2 ..VERY LOW.
CLEARING INDEX........1000+.
SKY/WEATHER...........CLOUDY (90-100 PERCENT CLOUD COVER).
                      PERIODS OF RAIN AND SNOW. A SLIGHT
                      CHANCE OF THUNDERSTORMS IN THE
                      AFTERNOON.
MAX TEMPERATURE.......42-46.
MIN HUMIDITY..........67-69 PERCENT.
WIND (20 FT)..........SOUTHWEST WINDS 10-15 MPH.



FORECASTER...WILENSKY
REQUESTED BY...ERIC EASTEP
REASON FOR REQUEST...PRESCRIBED
.TAG 20100517.HENRI.01/SLC

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