[palmer]

Port Lavaca could get fifty three (53) inches of rain!!!

Key word is "could". Someone might get that amount somewhere if multiple rain bands hit for long durations. But the model predictions of those bands can be taken with a grain of salt.

[NautiNurse]

More than simply a convergence of rain bands, the 53 inches of rain is anticipated due to four days of hurricane and tropical storm hovering just barely inland over the same area.