SWODY1
SPC AC 010530
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 PM CST WED DEC 31 2008
VALID 011200Z - 021200Z
...NO SVR TSTM AREAS FORECAST...
...SE TX THROUGH SRN LA...
A VORTICITY MAXIMUM CURRENTLY MOVING THROUGH S TX WILL CONTINUE EWD
THROUGH THE NRN GULF OF MEXICO THURSDAY. THIS FEATURE WILL INTERACT
WITH PRE-EXISTING BAROCLINIC ZONE OVER THE GULF...LIKELY MAINTAINING
SCATTERED SHOWERS AND A FEW THUNDERSTORMS. MOST OF THIS ACTIVITY
WILL LIKELY REMAIN OFFSHORE.
AS SURFACE RIDGE AXIS SHIFTS EAST...SWLY BOUNDARY LAYER FLOW WILL
INCREASE DURING THE LATE AFTERNOON AND EVENING OVER ERN TX INTO THE
LOWER MS VALLEY IN RESPONSE TO A SHORTWAVE TROUGH DROPPING SE
THROUGH THE MS VALLEY REGION. THETA-E ADVECTION AND LIFT ASSOCIATED
WITH THIS PROCESS WILL PROMOTE DESTABILIZATION FROM SE TX INTO LA
NORTH OF RETREATING WARM FRONT WHERE CONVECTION WILL LIKELY DEVELOP
OVERNIGHT. FORECAST SOUNDINGS SHOW PRESENCE OF AN INVERSION BETWEEN
850 AND 700 MB...SUGGESTING MUCH OF THE ACTIVITY WILL REMAIN SHALLOW
WITH LIMITED POTENTIAL FOR LIGHTNING.
..DIAL.. 01/01/2009
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