Begin with some sort of introduction -- remember, you are talking to your peers so be sure to emphasize areas that gave you problems and comment appropriately about those.
Include:
PART I
An intro to the NOAA tsunami page
A reference to how to evaluate data on the tsunami page
A full blown, step by step depiction of how to obtain data from the OOI PREST or CTD sensors, again, with appropriate commentary to your peers who may be watching your video
PART II
Show how to download, unzip and load that data into Google Sheets or Excel
PART III
Finally, show the entire process for creating a well-crafted tsunami graph showing all the tips and tricks you learned over the course of the last few weeks.