Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Many stations on the Gulf coast have large values for September 1961.
Documentation added 2001-06-04
Vaca Key 940/089 RLR(1990) is 8.2m below BM NO 1 1975
Documentation added 2011-12-21
Using NOAA data the RLR diagram has been reviewed. Primary benchmark is now 3970 N 1999 1.724m above gauge datum. There is now no reference to previous Primary benchmark NO 1 1975 2.073m relative to gauge datum (TGZ).