SPC AC 281052
   
   DAY 3 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0552 AM CDT THU OCT 28 2004
   
   VALID 301200Z - 311200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   A DEEP MID LEVEL TROUGH NOW OVER CA/NV WILL EJECT ENEWD TO THE MS
   VALLEY BY LATE DAY 2...AND CONTINUE ACROSS THE GREAT LAKES AND NEW
   ENGLAND BY DAY 3 IN RESPONSE TO AMPLIFICATION OF AN UPSTREAM TROUGH
   OVER THE NRN INTERMOUNTAIN REGION.  AT THE SURFACE...AN ASSOCIATED
   LOW SHOULD DEVELOP FROM MI TO THE SRN QUEBEC AREA IN ADVANCE OF THE
   MID LEVEL TROUGH...AS A TRAILING COLD FRONT MOVES EWD ACROSS THE OH
   VALLEY/LOWER GREAT LAKES.  THE SWRN PORTION OF THIS BOUNDARY WILL
   LIKELY STALL ACROSS TX. 
   
   GIVEN THE RELATIVELY BROAD/MOIST WARM SECTOR NOW PRESENT OVER THE
   PLAINS AND GULF COAST...AT LEAST WEAK INSTABILITY CAN BE EXPECTED
   SATURDAY IN THE WARM SECTOR ACROSS THE OH VALLEY/PARTS OF LOWER
   MI/PA/NY.  STRONG WINDS AND DEEP LAYER VERTICAL SHEAR WILL ALSO
   COEXIST WITH THE WARM SECTOR...SUGGESTING THAT THE STRONGEST STORMS
   MAY PRODUCE AT LEAST ISOLATED DAMAGING WINDS.
   
   OTHERWISE...THUNDERSTORMS WILL BE POSSIBLE ALONG THE SLOW MOVING
   FRONT ACROSS THE NRN GULF STATES AND E TX.  DESPITE MODEST DEEP
   LAYER SPEED SHEAR BENEATH THE SRN PERIPHERY OF THE MID-UPPER
   JET...THE SEVERE STORM THREAT SHOULD BE MINIMAL DUE TO POOR LAPSE
   RATES AND WEAK LOW-LEVEL FLOW.
   
   ..THOMPSON.. 10/28/2004
   
   ...NOTICE...
   FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
   LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
   GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
   HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
   INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.
   
   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED FOR 1100Z