MESOSCALE DISCUSSION 1664
   NWS STORM PREDICTION CENTER NORMAN OK
   1118 AM CDT WED JUL 14 2004
   
   AREAS AFFECTED...VA...ERN WV PNHDL...NRN MD...DC...NRN NC
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 141618Z - 141815Z
   
   WATCHES WILL BE NEEDED SHORTLY ACROSS PARTS OF THE MID ATLANTIC
   REGION.
   
   INCREASINGLY UNSTABLE AIRMASS AND INTENSIFYING SHEAR PARAMETERS...
   COUPLED WITH STRONG LARGE SCALE FORCING FROM APPROACHING UPPER
   TROUGH AND COLD FRONT...EXPECTED TO RESULT IN WIDESPREAD SEVERE TSTM
   DEVELOPMENT ACROSS PORTIONS OF VA/MD/DE THROUGH THIS AFTERNOON.
   INITIAL ACTIVITY AHEAD OF THE FRONTAL BOUNDARY MAY BECOME
   SUPERCELLULAR AND POSE A THREAT OF HAIL AND ISOLD TORNADOES.
   CONVECTION SHOULD EVOLVE INTO LINE SEGMENTS ALONG THE FRONT AND
   AHEAD OF 50KT MID LEVEL WIND MAX AND SPREAD EAST WITH AN INCREASING
   THREAT OF DAMAGING WINDS.
   
   ..CARBIN.. 07/14/2004
   
   
   ATTN...WFO...AKQ...CTP...LWX...RAH...RNK...
   
   36468133 36968122 37827973 38797894 39777849 39777782
   38907728 38457718 38027717 37247739 36077964