Kallakkadal: Coastal Flooding Linked to Distant Ocean Swells
Kallakkadal: Coastal Flooding Linked to Distant Ocean Swells
IN · Published Oct 1, 2026
• The phenomenon of Kallakkadal, a type of coastal flooding caused by long-period ocean swells, has been highlighted in recent advisories issued by INCOIS.
• Unlike typical flooding events, Kallakkadal can occur without any local storm activity.

Impact & Risks

Kallakkadal poses significant risks to coastal communities, including flooding of low-lying areas, damage to fishing equipment, and disruption of livelihoods. The absence of local storm activity can lead to a false sense of security, making timely advisories crucial. Coastal inundation can also impact infrastructure and ecosystems, particularly in areas with vulnerable seabed conditions. The phenomenon underscores the need for robust early warning systems and preparedness measures to mitigate its impact.

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