It takes a 9 foot surge to get water anywhere near Houma on my software. That would apply to NO too. West of there it would necessarily get deeper.
It's going to be a much smaller area of major damage compared to Katrina, but that 60-80 mile stretch of SW LA right on the shore got absolutely pounded for several hours. Just east of Sabine Pass, to about Cameron and up any bays/lakes (Lake Charles) took quite a significant surge.
Many other years, this would be the major storm of the season.