For the record there are VERY large tidal differences in that neck of the woods, and it was a full moon two days ago, signalling a supertide.

This may partly explain the discrepancies, but it is likely too the booo-eees are not working correctly, and may have been unjustly pushed to the point of BS'ing data by the rather large, and sudden, supertide on full moon which caught them unawares.