DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1256 AM CDT WED MAY 09 2007
   
   VALID 101200Z - 111200Z
   
   ...NERN STATES...
   A CLOSED UPPER-LEVEL LOW IS FORECAST TO DEVELOP ACROSS THE GREAT
   LAKES REGION TONIGHT AND MOVE EWD INTO THE NERN U.S. THURSDAY. A
   WELL-FOCUSED VORTICITY MAXIMA ASSOCIATED WITH THE UPPER-LEVEL LOW
   WILL INCREASING LARGE-SCALE ASCENT ACROSS THE REGION. IN RESPONSE TO
   THE LIFT...SCATTERED TO NUMEROUS THUNDERSTORMS SHOULD DEVELOP
   THURSDAY AFTERNOON IN WRN PA AND WRN NY WITH THE CONVECTION
   SPREADING EWD INTO THE NRN APPALACHIAN MTNS BY LATE AFTERNOON.
   ALTHOUGH FORECAST SOUNDINGS SHOW WEAK INSTABILITY ACROSS THE
   REGION...MODERATE VERTICAL SHEAR PROFILES AND STRENGTHENING
   LOW-LEVEL FLOW MAY BE SUFFICIENT FOR SEVERE STORMS WITH AN ISOLATED
   WIND DAMAGE THREAT DURING THE LATE AFTERNOON.

|posted by Sam Lillo @ 5/09/2007 06:51:00 AM