Undertow.
tear
The homophone for "rip" is "rip." A homophone is a word that is pronounced the same as another word but has a different meaning or spelling.
Undercurrent?
snap,rip,
rip
They salty tasting water that comes out your eyes
Another word for "shred" is "tear." Other synonyms include "rip," "cut," or "fragment," depending on the context in which it is used.
Another word for amps would be current. Amps it the unit of mesure for current
A current that runs parallel to the shoreline is called a rip tide or rip current.
current
rip
rip