https://www.washingtonpost.com/blogs/capital-weather-gang/wp/2015/10/01/why-the-forecast-cone-of-uncertainty-is-inadequate-for-hurricane-joaquin/

I don't recall another storm where their best models were so wildly divergent for such a long period of time. Their regular public communication tools like the cone don't really hold up. On the other hand the discussions with the key points enumerated did a really fine job of explaining the uncertainties. And it's not over - as of 8pm, it was still heading WSW and Tropical Storm Warning issued for Eastern Cuba.