The TWO says that upper level winds do not appear favourable for a couple of days, but then as Bobbi pointed out, appearances can be deceiving. To use Claudette as an example again, she formed in an area that was only marginal for development and that wave was bumped up to tropical storm status. I know there were other factors, but that is an example. The wave looks better than it has for quite a few hours, but then, as is common with a system in the early stages of development, it will probably die down and flare up a few times.