SPC AC 180830

   DAY 3 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0230 AM CST TUE NOV 18 2014

   VALID 201200Z - 211200Z

   ...NO SVR TSTM AREAS FORECAST...

   ...SUMMARY...
   A FEW SHOWERS AND POSSIBLY ISOLATED THUNDERSTORMS MAY OCCUR OVER
   SOUTHEASTERN TEXAS ESPECIALLY LATER THURSDAY AND THURSDAY NIGHT.

   ...SYNOPSIS...

   UPPER PATTERN WILL BEGIN THE TRANSITION TO A PROGRESSIVE REGIME AS
   THE ERN U.S. UPPER TROUGH DEAMPLIFIES AND MOVES TOWARD THE ATLANTIC
   SEABOARD. A WEAK...LOW-AMPLITUDE SRN-STREAM SHORTWAVE TROUGH WILL
   ADVANCE THROUGH THE SRN PLAINS AND THE LOWER MS VALLEY...WHILE A
   MUCH STRONGER UPSTREAM SHORTWAVE TROUGH MOVES SEWD THROUGH CA INTO
   THE GREAT BASIN. AT THE SFC A LARGE AREA OF HIGH PRESSURE WILL
   PERSIST OVER THE ERN STATES. UPSTREAM OF THIS FEATURE...A WARM FRONT
   WILL RETURN NWD THROUGH TX.

   ...SERN TX...

   LOW-LEVEL WINDS WILL HAVE RETURNED TO SLY OVER THE WRN
   GULF...ADVECTING PARTIALLY MODIFIED GULF AIR WITH LOW TO MID 60S F
   DEWPOINTS NWD THROUGH THE TX WARM SECTOR BENEATH WEAK MID-LEVEL
   LAPSE RATES. THIS WILL RESULT IN AT LEAST MARGINAL MUCAPE /AOB 500
   J/KG/ OVER A PORTION OF SERN TX...AND SHOWERS AND POSSIBLY A FEW
   THUNDERSTORMS MAY FORM WITHIN THE DEVELOPING WARM ADVECTION REGIME.

   ..DIAL.. 11/18/2014

   CLICK TO GET WUUS03 PTSDY3 PRODUCT

   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z