SPC AC 201628
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1128 AM CDT MON OCT 20 2003
   
   VALID 211200Z - 221200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 SE ILM 40 NNE RIC
   35 NNE IPT 20 NNW UCA 20 SSE BTV 35 ESE BML BHB.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   LARGE-SCALE TROUGH WILL AMPLIFY OVER THE ERN CONUS ON TUESDAY IN
   RESPONSE TO VIGOROUS MID/UPPER-LEVEL JET STREAKS DIVING SEWD ACROSS
   THE GREAT LAKES INTO THE CNTRL APPALACHIANS. FARTHER W...LONGWAVE
   RIDGING WILL PERSIST FROM THE SRN PLAINS NWD INTO THE NRN
   ROCKIES/SWRN CANADA.
   
   IN THE LOW-LEVELS...PRIMARY SURFACE CYCLONE ASSOCIATED WITH
   AFOREMENTIONED TROUGH WILL LIFT NEWD ACROSS NEW ENGLAND WHILE
   TRAILING COLD FRONT PUSHES SEWD ACROSS THE MIDDLE ATLANTIC REGION
   INTO THE SERN STATES.
   
   ...NERN U.S. INTO THE MIDDLE ATLANTIC STATES...
   THOUGH LOW-LEVEL MOISTURE WILL REMAIN LIMITED...STRONG DYNAMIC
   FORCING AHEAD OF MID-LEVEL TROUGH WILL STEEPEN LAPSE RATES AND
   CONTRIBUTE TO WEAK ELEVATED INSTABILITY AHEAD OF SURFACE FRONTAL
   SYSTEM OVER NEW ENGLAND. THE GREATEST POTENTIAL FOR A FEW EMBEDDED
   TSTMS WILL EXIST IN THE LOW-LEVEL WAA ZONE ALONG AND N OF WARM 
   FRONT...THEN SWD ALONG COLD FRONT INTO ERN PA/SRN NEW ENGLAND.
   
   ADDITIONAL ISOLATED TSTMS WILL ALSO BE POSSIBLE LATE TUESDAY NIGHT
   AS FAR S AS ERN NC AS DIVERGENT LEFT EXIT REGION OF UPPER-LEVEL JET
   BEGINS TO OVERSPREAD MARGINALLY UNSTABLE PRE-FRONTAL AIRMASS.
   
   ..MEAD.. 10/20/2003
   
   ...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 2 OUTLOOK IS SCHEDULED FOR 0800Z