Day 1 Convective Outlook

DAY 1 CONVECTIVE OUTLOOK  

   NWS STORM PREDICTION CENTER NORMAN OK
   0733 AM CDT SUN JUN 09 2013

   VALID 091300Z - 101200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS TODAY ACROSS PARTS OF THE
   MIDDLE MISSISSIPPI VALLEY...

   ...SYNOPSIS...
   A STRONG WESTERLY MID/UPPER JET...WHICH HAS EMERGED FROM THE
   PACIFIC...IS EXPECTED TO CONTINUE GRADUALLY NOSING EASTWARD ALONG
   THE CANADIAN/U.S. BORDER TODAY...TOWARD THE UPPER MIDWEST/GREAT
   LAKES REGION.  AS THIS OCCURS...AN AMPLIFIED SHORT WAVE TROUGH AND
   EMBEDDED CLOSED LOW...WITHIN A WEAKER STREAM TO THE SOUTH...ARE
   EXPECTED TO ALSO CONTINUE A SLOW EASTWARD PROGRESSION ACROSS THE
   MIDDLE MISSISSIPPI VALLEY.  THIS PROBABLY WILL BE ACCOMPANIED BY
   SOME STRENGTHENING OF MID/UPPER FLOW IN A CYCLONIC BELT ACROSS THE
   MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS.

Any source