Its a good idea to look at the maps of where the high and low pressure systems are located.  It tells you what the winds are doing.  if you don't understand what all the "L" and "H"s on the weather mean, check this site for winds (http://hint.fm/wind/) or I check Buckeye weather (http://twister.sbs.ohio-state.edu/) and under surface look at streamlines and analysis.  The neat thing about the Buckeye weather site is at the bottom of the map you can animate it to see what the weather is predicted to do.  Its not surprising to see streamlines in November stretching from Texas to the Great Lakes and see cave swallow reports shortly thereafter.
The interesting thing about this storm are the winds moving pretty much west to east and are originating in the Great Plains.  Anything that may have moved with this storm probably came out of the west.  The question is, are there any birds in that desolate area that are still moving.  These huge storms are the most interesting as they cover so much area and there is so much more potential.

John Pogacnik                                     
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