Saw a documentary on rogue waves that said some get up to 100’. It was attempting to explain some ships that have been lost without a trace. In that light, 83’ in a hurricane seems plausible.
Rogue waves are certainly real and at least in part caused by creative and destructive interference of different energy waves through the water.
https://www.ibtimes.co.uk/steepest-ever-rogue-ocean-wave-measured-north-sea-1610693