Asteroid to miss Earth January 29
http://www.badastronomy.com/bablog/2008/01/06/asteroid-to-miss-earth-january-29/
Blimey - I'd better start drinking now !!!
That'll fix the weather good and proper...
...and just in case you want to know how bad it can get, you can find an online "Earth Impact Effects Program" (developed by Robert Marcus, H. Jay Melosh, and Gareth Collins) here:
http://www.lpl.arizona.edu/impacteffects/
:twisted: