MESOSCALE DISCUSSION 0199
   NWS STORM PREDICTION CENTER NORMAN OK
   0704 PM CST SUN MAR 06 2011
   
   AREAS AFFECTED...SERN VA
   
   CONCERNING...TORNADO WATCH 41...
   
   VALID 070104Z - 070200Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 41 CONTINUES.
   
   STRONGLY FORCED SQUALL LINE...LIKELY DRIVEN BY/CORRELATED WITH UPPER
   VORT...IS PROGRESSING NEWD ACROSS NRN PORTIONS OF WW41 AT ROUGHLY
   35KT.  A NARROW WEDGE OF YET TO BE OVERTURNED MODIFIED WARM SECTOR
   REMAINS OVER EXTREME SERN VA WHERE A FEW HUNDRED J/KG MUCAPE EXISTS.
   JUST DOWNSTREAM...00Z SOUNDING FROM WAL EXHIBITS COOL/STABLE
   BOUNDARY LAYER AND IN THE ABSENCE OF SIGNIFICANT RECOVERY OVER THIS
   REGION THE APPROACHING SQUALL LINE SHOULD GRADUALLY WEAKEN.  IN THE
   SHORT TERM...ISOLATED TORNADOES MAY YET STILL DEVELOP ALONG STRONGLY
   FORCED CONVECTIVE LINE...PRIMARILY OVER SERN VA.
   
   ..DARROW.. 03/07/2011
   
   
   ATTN...WFO...AKQ...MHX...RAH...
   
   LAT...LON   35437805 37397785 37407583 35447610 35437805