Whoa. I don't like this alert AT ALL.
This alert has flown around the CONUS in about 10 minutes flat. Check this out:
http://news.google.com/news?hl=en&lr=&tab=wn&ie=UTF-8&ncl=http://www.ajc.com/news/content/news/ap/ap_story.html/National/AP.V7812.AP-Schools-Warning.html&filter=0