How about some definitions of data you present? I look at tide data for my area near Fort Lauderdale, Florida, USA. and see things that make no sense! You need to either provide an explanation page or give a little explanation of what you are presenting! I find the following in the tide data for Whiskey Creek..
4.6 at 3:29 AM
Low Tide, 0ft, 0.02m

What is this? What are you trying to tell me?