SWODY1
SPC AC 110532
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1132 PM CST SAT DEC 10 2011
VALID 111200Z - 121200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
QUASI-ZONAL SYNOPTIC PATTERN WILL PERSIST THROUGH SUNDAY. VORT MAX
NOW OVER TX WILL ADVANCE THROUGH THE SERN U.S. DURING THE DAY AND
OVERNIGHT...WHILE HIGH AMPLITUDE UPPER TROUGH OVER THE ERN PACIFIC
MOVES INTO THE WRN STATES. AT THE SURFACE A QUASI-STATIONARY FRONT
WILL PERSIST OVER SRN FL...WHILE HIGH PRESSURE REMAINS ANCHORED OVER
THE ERN HALF OF THE COUNTRY.
...CNTRL AND SRN FL...
RICHER BOUNDARY LAYER MOISTURE WITH UPPER 60S DEWPOINTS WILL PERSIST
IN VICINITY OF QUASISTATIONARY FRONT. POCKETS OF SURFACE HEATING MAY
OCCUR OVER S FL...BUT INSTABILITY WILL REMAIN WEAK DUE TO MARGINAL
MID-LEVEL LAPSE RATES. SHOWERS AND ISOLATED THUNDERSTORMS WILL BE
POSSIBLE OVER CNTRL AND SRN FL SUNDAY PRIMARILY SUPPORTED BY LOW
LEVEL CONVERGENCE BANDS AND WEAK ISENTROPIC ASCENT.
...NRN FL THROUGH SRN AL AND SRN GA...
THE BAROCLINIC ZONE ACROSS FL HAS BEEN REINFORCED BY CP HIGH
PRESSURE OVER THE ERN STATES. WINDS JUST ABOVE THE SURFACE WILL VEER
TO SELY AND STRENGTHEN OVER THE ERN GULF AND FL SUNDAY AFTERNOON AND
EVENING IN RESPONSE TO THE APPROACHING PROGRESSIVE SRN STREAM VORT
MAX. THIS PROCESS WILL AUGMENT ISENTROPIC ASCENT AND LOW LEVEL
THETA-E ADVECTION ABOVE THE STABLE SURFACE LAYER FROM NRN FL INTO
SRN AL AND GA SUPPORTING OVERNIGHT DESTABILIZATION AND THE
DEVELOPMENT OF NUMEROUS ELEVATED SHOWERS ALONG WITH A FEW EMBEDDED
THUNDERSTORMS.
..DIAL/HURLBUT.. 12/11/2011
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