Everyone says that you shouldn’t send people straight to other websites, but I think that you’ll really enjoy listening to Bruce Burnham tell you a short (1 minute and 13 seconds) story about the development of the Storm Pattern rug.  I do the Burnham’s web site and this discussion got started when Bruce said the rug below was a Storm Pattern variant.   Listen to Bruce tell the story.

Bruce Burnham contends that this is an early Storm Pattern vairant, and he's got an interesting story that ties into that opinion.