[cll]

Or microbursts:

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/svr/comp/out/micro/home.rxml

[kingu]

Listening to live streaming of a local radio there, they just had the press conference, 1 survivor taken to a local hospital, plane crashed into a farm field just west of the airport. 49 confirmed dead by airport spokescritter at the newsconference, 46 passengers, 3 crew. Unsure if the 'one survivor' is counted in that number or not, but if the survivor is in addition, that'd equal the 50 that's widely reported.