I'm watching Fox News, and I didn't hear that.
They did say it was up to 150 mph and they said 156 is Category 5. Not that it was at Category 5 yet.
WWL (New Orleans TV): No wind sheer to weaken the storm. Water temps at 90 degrees surface, in the 80s to considerable depths. Storm still to strengthen even more. Highly confident of landfall in southeast Louisiana.