SWODY2
SPC AC 120556
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1156 PM CST SUN JAN 11 2009
VALID 131200Z - 141200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
THE LARGE SCALE PATTERN WILL CHANGE LITTLE THROUGH TUESDAY WITH A
HIGH AMPLITUDE UPPER TROUGH OVER THE ERN TWO THIRDS OF THE COUNTRY
AND A CORRESPONDING UPPER RIDGE OVER THE ERN PACIFIC AND WRN U.S.
COASTAL AREA.
...CNTRL THROUGH S FL...
SURFACE HIGH PRESSURE BUILDING SEWD IN WAKE OF A SHORTWAVE TROUGH
ADVANCING THROUGH THE ERN STATES WILL PUSH A STALLED FRONT THROUGH
THE CNTRL AND SRN FL PENINSULA TUESDAY. BOUNDARY LAYER DEWPOINTS IN
THE LOW TO MID 60S WILL PERSIST AHEAD OF THE FRONT. DEEPER FORCING
FOR ASCENT WILL LIKELY REMAIN POST FRONTAL WITH WEAK MID LEVEL LAPSE
RATES AND INSTABILITY IN WARM SECTOR. SCATTERED SHOWERS WILL DEVELOP
IN VICINITY OF FRONT AS IT CONTINUES SEWD. THE MARGINAL INSTABILITY
AND WEAK LAPSE RATES WILL RESULT IN LIMITED CHARGE SEPARATION
POTENTIAL. A FEW LIGHTNING STRIKES WILL BE POSSIBLE OVER CNTRL AND S
FL AS DIABATIC HEATING DESTABILIZES THE BOUNDARY LAYER DURING THE
AFTERNOON...BUT THUNDERSTORM COVERAGE WILL PROBABLY REMAIN AOB 10%.
..DIAL.. 01/12/2009
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