Jun 27, 2013 0600 UTC Day 1 Convective Outlook

DAY 1 CONVECTIVE OUTLOOK  

   NWS STORM PREDICTION CENTER NORMAN OK
   0100 AM CDT THU JUN 27 2013

   VALID 271200Z - 281200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS OVER  A PORTION OF THE
   CNTRL/SRN PLAINS INTO THE MID-LOWER MS VALLEY...

   ...THERE IS A SLGT RISK OF SVR TSTMS OVER A PORTION OF THE GREAT
   LAKES AREA...

   ...THERE IS A SLGT RISK OF SVR TSTMS OVER A PART OF THE SERN
   STATES...

   ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE MID ATLANTIC INTO A
   PORTION OF THE NERN U.S....

   ...SYNOPSIS...

   THE SYNOPTIC UPPER PATTERN WILL UNDERGO AMPLIFICATION THURSDAY WITH
   A GRADUAL BUILDING OF THE RIDGE OVER THE WRN U.S. AND DEEPENING OF
   TROUGH OVER THE ERN STATES. SHORTWAVE TROUGH OVER THE OH VALLEY
   REGION WILL MOVE SLOWLY EWD INTO THE MID-ATLANTIC AND NERN STATES.
   OTHER VORTICITY MAXIMA WILL DROP SEWD THROUGH THE UPPER MS VALLEY
   AND GREAT LAKES REGION. AT THE SFC A COLD FRONT WILL DEVELOP SWD
   THROUGH KS AND THE MID MS VALLEY REGION WITH AN OCCLUDED FRONT
   FARTHER NORTH INTO WI. FARTHER EAST A SFC LOW WILL ACCOMPANY THE
   SHORTWAVE TROUGH INTO THE MID ATLANTIC REGION WITH A LEE TROUGH
   EXTENDING SWD FROM THE LOW THROUGH VA AND THE CAROLINAS.