Nuisance flooding is considered 0.53 m above MHHW.
If you want the data for this plot do you can replot it or data from Sewells Point contact me.
Here is the plot:
The US coast from Cape Hatteras to New England is experiencing increased coastal or tidal flooding because of local sea level rise. I started this blog to track the developing scientific understanding of the causes and to provide sources of information to both scientists and anyone else interested.