I haven't been able to answer this question looking online in the news, so I'll pose it here. Max wind gusts at landfall for Harvey from what I've seen were around 130 mph...most gusts were in the 100-110 mph range. Cat four requires *sustained* winds of at least 130 mph. Now, from the damage pics I've seen, looks certainly possible that there were pockets of sustained 130+ mph. And the central pressure could arguably give some support too. But it doesn't seem like anyone is asking the obvious question (although I stay out of the social media fray so maybe I've missed it...) So what am I missing?