IN later this morning
Posted by JAC on 5/25/2011, 9:50 am



MESOSCALE DISCUSSION 0951
  NWS STORM PREDICTION CENTER NORMAN OK
  0833 AM CDT WED MAY 25 2011
 
  AREAS AFFECTED...ERN IL AND IND
 
  CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
 
  VALID 251333Z - 251500Z
 
  A SEVERE THREAT WILL LIKELY SPREAD EWD ACROSS IND OVER THE NEXT FEW
  HOURS. THE SEVERE STORMS WILL BE CAPABLE OF PRODUCING
  TORNADOES...HAIL AND ISOLATED WIND DAMAGE. WW ISSUANCE WILL LIKELY
  BE NEEDED OVER THE NEXT HOUR ACROSS THE REGION.
 
  A NEARLY CONTINUOUS LINE OF STRONG THUNDERSTORMS IS ONGOING IN ERN
  IL THE NOSE OF A 55 TO 65 KT MID-LEVEL JET EJECTING NEWD ACROSS THE
  MID-MS VALLEY. THE LINE IS ALSO LOCATED ALONG THE LEADING EDGE OF
  LARGE-SCALE ASCENT ASSOCIATED WITH A SHORTWAVE TROUGH ROUNDING THE
  ERN EDGE OF THE CNTRL PLAINS UPPER-LEVEL LOW. AS THIS FEATURE ALONG
  WITH THE MID-LEVEL JET MOVE EWD THIS MORNING...THE LIFT AND STRONG
  DEEP LAYER SHEAR WILL SUPPORT SEVERE THUNDERSTORM DEVELOPMENT ACROSS
  IND. THE STORMS WILL ALSO HAVE ACCESS TO INCREASING LOW-LEVEL SHEAR
  AS A PRONOUNCED LOW-LEVEL JET MOVES EWD ACROSS CNTRL IND MAKING
  CONDITIONS FAVORABLE FOR TORNADOES AND DAMAGING WINDS ESPECIALLY
  WITH BOWING-LINE SEGMENTS. IN ADDITION TO THE TORNADO AND WIND
  DAMAGE THREAT...HAIL WILL BE POSSIBLE WITH THE MORE INTENSE CELLS.
 
  ..BROYLES.. 05/25/2011



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Mid MS-River Area under High-Risk for Severe Weather Today - JAC, 5/25/2011, 9:01 am
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