Widespread damaging wind. Strong forcing of QLCS.
Posted by JAC on 4/4/2011, 3:50 pm



MESOSCALE DISCUSSION 0347
  NWS STORM PREDICTION CENTER NORMAN OK
  0208 PM CDT MON APR 04 2011
 
  AREAS AFFECTED...MIDDLE TN
 
  CONCERNING...TORNADO WATCH 92...
 
  VALID 041908Z - 042015Z
 
  THE SEVERE WEATHER THREAT FOR TORNADO WATCH 92 CONTINUES.
 
  LEADING EDGE OF STRONGLY FORCED/VERY FAST-MOVING QLCS EXTENDED FROM
  SUMNER TO WAYNE COUNTIES AS OF 1900Z. RECENT FORWARD PROPAGATION OF
  60-70 KT SUGGESTS THE LINE SHOULD REACH THE ERN EXTENT OF WW 92 NEAR
  21Z. AMBIENT AIR MASS OVER MIDDLE TN REMAINS QUITE FAVORABLE FOR
  WIDESPREAD DAMAGING WINDS /LOCALLY SIGNIFICANT/ AND TRANSIENT
  CIRCULATIONS WITH ISOLATED TORNADOES. 18Z BNA RAOB SAMPLED SFC-1 KM
  SHEAR OF 50 KT WITH A VEER-BACK MID-LEVEL WIND PROFILE SIGNATURE.
  DOWNSTREAM AIR MASS DESTABILIZATION WILL SUPPORT PRIMARILY A
  DAMAGING WIND THREAT CONTINUING E OF WW 92 WHERE A NEW SEVERE TSTM
  WATCH HAS BEEN JUST ISSUED FOR ERN TN.
 
  ..GRAMS.. 04/04/2011
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MS & W TN Under the Gun Today - JAC, 4/4/2011, 5:54 am
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