Overfalls

Breaking waves caused by a conflict of currents, or by the wind moving against the current.
Found on https://www.encyclo.co.uk/local/20127

Overfalls

Dangerously steep and breaking seas due to opposing currents and wind in a shallow area, or strong currents over a shallow rocky bottom.
Found on http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

Overfalls

Dangerously steep and breaking seas due to opposing currents and wind in a shallow area, or strong currents over a shallow rocky bottom.
Found on http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

Overfalls

Breaking waves caused by the meeting of currents or by waves moving against the current. See rip.
Found on http://www.superglossary.com/Glossary/Science/Tides_and_Currents/
No exact match found