I know I'm only getting windy rain out of this, but man that 500mb vorticity map is the most interesting/unique thing I've seen in a while. I know @Typhoon Tip mentioned it several pages back. The 500 mb lows never phase, they cross each others tracks, the northern wave shoots ESE into the Atlantic and the southern wave goes due north and merges into that huge low over northern Canada. I'm sure it's happened before but that can't happen that often...