'Amphan': What are 'storm surges' and why they are deadly

Cyclones can unleash catastrophic storm surges — tsunami-like flooding — when they make landfall. They can be the deadliest part of a cyclone and are only partially affected by wind speeds.

source https://timesofindia.indiatimes.com/india/amphan-what-are-storm-surges-and-why-they-are-deadly/articleshow/75839868.cms