Looking at the recent track the remnants of TD10 are not following the "west northwestward" track that NHC has been continually calling for, and instead over the past 24 hours it has slid more west southwest. It seems that a lot of the more recent systems out there this year (Franklin, Harvey, Irene, this one) seem to like ignoring the NHC guidance, both in tracking further south and in not getting torn appart by other systems that the NHC is predicting will do such. I suspect that the NHC has picked up on this, and that's why (a) Irene wasn't downgraded and (b) TD10 remnants are still being so closely watched.

If systems are able to survive in such hazardous conditions as Irene and TD10 seem to be able to do, I wonder what will happen with a truely strong wave like the one that Clark mentioned might come off Africa in about half a week.