How to get NOAA Actual Tide Water Level (not just predicted levels)?

[pjkerly]

Is there a way to get the actual water level as in the attached NOAA tides view?

It looks like the Water Level I currently get is a percentage. In order to get the predicted level, I take the (((high tide - low tide) * water level) / 100) + low tide ... this gives me a smooth curve between the predicted high tide and the predicted low tide for the current predicted level. However, this does not represent the actual as measured tide level. I.E. doesn't show storm surge water levels. The NOAA Tides web site has this data but not clear how to get that actual tide level.