908
FNUS75 KSLC 241610
FWSSLC
SPOT FORECAST FOR RESERVATION RIDGE PILES
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
910 AM MST TUE NOV 24 2009
DISCUSSION
A STRENGTHENING RIDGE ALOFT WILL CONTINUE TO BUILD AND
DOMINATE LOCAL WEATHER PATTERNS THROUGH WEDNESDAY. INCREASINGLY
STABLE AIR ASSOCIATED WITH THE RIDGE HAS CREATED A STRONG SUBSIDENCE
INVERSION THAT APPEARS TO BE BETWEEN THE 9000-10000FT LEVEL THIS
MORNING. WINDS REMAIN OUT OF THE NORTHEAST ALOFT...AND ANTICIPATE
WESTERLY DOWNSLOPE FLOW WILL TRANSITION TO MORE OF A NORTHERLY COMPONENT
MIDDAY AS INCREASED SOLAR WILL BREAK THE WEAK LOW LEVEL INVERSION IN
PLACE THIS MORNING. THAT SAID...NOT MUCH HOPE FOR DEEP MIXING TODAY...AND
CLEARING INDICES REFLECT THAT. IT DOES NOT APPEAR CLEARING INDICES WILL
SIGNIFICANTLY IMPROVE UNTIL THURSDAY AFTERNOON...AT WHICH POINT THE
RIDGE AXIS LOOKS TO SHIFT EAST ALLOWING INCREASING SOUTHWESTERLY WINDS
TO RAMP UP...IMPROVING MIXING POTENTIAL.
TODAY
LAL.................1.
HAINES INDEX........3 ..VERY LOW.
CLEARING INDEX......110.
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT CLOUD COVER).
MAX TEMPERATURE.....29-32.
MIN HUMIDITY........40-44 PERCENT.
WINDS - 20-FOOT.....WEST WINDS 5 TO 10 MPH EARLY IN THE MORNING
BECOMING NORTH 5 TO 10 MPH WITH GUSTS NEAR
20 MPH EARLY AFTERNOON ...THEN BECOMING
WEST 5 MPH LATE IN THE AFTERNOON.
TONIGHT
LAL.................1.
HAINES INDEX........2 ..VERY LOW.
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT CLOUD COVER).
MIN TEMPERATURE.....20.
MAX HUMIDITY........70-72 PERCENT.
WINDS - 20-FOOT.....WEST WINDS 5 MPH.
OUTLOOK FOR WEDNESDAY
LAL.................1.
HAINES INDEX........2 ..VERY LOW.
CLEARING INDEX......70.
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER).
MAX TEMPERATURE.....40-42.
MIN HUMIDITY........29-31 PERCENT.
WINDS - 20-FOOT.....NORTH WINDS 5 MPH.
FORECASTER...MERRILL
REQUESTED BY...ALLAN HEPWORTH
REASON FOR REQUEST...PRESCRIBED
.TAG 20091124.RESER.01/SLC
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