SWODY1
SPC AC 051245
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0745 AM CDT FRI NOV 05 2010
VALID 051300Z - 061200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
HIGH AMPLITUDE PATTERN WILL PREVAIL THROUGH SAT OVER THE LWR 48 AS
TROUGH EVOLVES INTO A DEEP LOW OVER THE CNTRL/SRN APPALACHIANS AND
UPSTREAM RIDGE SLOWLY PROGRESSES FROM THE GRT BASIN TO THE RCKYS.
AT THE SFC...AN EXPANSIVE RIDGE OF HIGH PRESSURE EDGES E FROM THE
PLNS INTO THE MS VLY/WRN GULF OF MEXICO..
...SRN APPALACHIANS/ADJACENT PIEDMONT...
LOW-LEVEL MOISTURE WILL BE MEAGER OVER THE SERN STATES TODAY AS A
RESULT OF SFC RIDGING/LOW LVL DRY AIR ADVECTION. BUT COLD AIR ALOFT
/-30 DEG C AT 500 MB/ ASSOCIATED WITH DEEPENING UPR
CIRCULATION...AND SFC HEATING...WILL STEEPEN LOW TO MID LVL LAPSE
RATES OVER THE SRN APPALACHIANS. COUPLED WITH UPSLOPE FLOW AND
FORCING FOR ASCENT PROVIDED BY VORT MAXIMA ROTATING AROUND LARGER
SCALE TROUGH...SETUP WILL PROMOTE THE DEVELOPMENT OF SCTD AFTN
CONVECTION. GIVEN THE DEGREE OF INSTABILITY...SOME OF THIS ACTIVITY
MAY SUFFICIENTLY DEEPEN TO YIELD CHARGE SEPARATION/THUNDER.
NEVERTHELESS...LIMITED MOISTURE AVAILABILITY SUGGESTS THAT STORM
COVERAGE LIKELY WILL REMAIN RATHER SPARSE.
..CORFIDI/SMITH.. 11/05/2010
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