We now have a SKWARN website that has been created by Craig Wicks, WX8DX. This has all the forms for reporting to the Blacksburg NSW office and lots of other resources. The site is http://www.wx4rnk.org/ please go there and bookmark the site on your favorites for quick access.
Any feature that was listed on this page is now on the new site. You will need to take your time and do some browsing but this new site is filled with resources for the spotter. The emphasis of course is on ham radio spotters.