Inside The Eye - NHC's new blog post
Posted by cypresstx on 1/30/2016, 7:16 am
The Alphabet Soup of Vertical Datums: Why MHHW is Mmm Mmm Good

https://noaanhc.wordpress.com/2016/01/29/the-alphabet-soup-of-vertical-datums-why-mhhw-is-mmm-mmm-good/

excellent read - you can see the difference in the 4 different charts in this post, as an example:  https://canetalk.com/2016/01/1453397418_1453342432.shtml  with charts from their site:  http://slosh.nws.noaa.gov/etsurge/

from the blog:

And finally, if you're ever looking at storm surge forecast guidance online, make sure you know which vertical datum you're looking at!  For example, the NWS's Extratropical Storm Surge (ETSS) model is available on the Meteorological Development Laboratory website, and although data shown is relative to Mean Sea Level (MSL), the vertical datum can be changed to MHHW or MLLW.



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Inside The Eye - NHC's new blog post - cypresstx, 1/30/2016, 7:16 am
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