THIRUVANANTHAPURAM: In response to looming rough sea conditions, the Indian National Centre for Ocean Information Services (INCOIS) has issued a comprehensive red alert across all coastal districts of Kerala. The warning addresses the imminent threat of high-energy waves and the treacherous swell wave phenomenon, locally known as 'Kallakkadal'.

The high-alert period remains effective, warning that sea conditions will stay turbulent. During this window, ocean waves reaching heights of 1 to 1.5 meters are anticipated to aggressively lash the Kerala coastline.

Understanding the 'Kallakkadal' Threat

The Kallakkadal phenomenon describes a sudden, ferocious surge of the sea that occurs without any immediate local atmospheric warnings or wind activity. These surges are triggered by powerful winds churning distant oceans, generating massive swells that eventually break onto shores with destructive force. Because they arrive without local weather precursors, they pose severe hazards to coastal populations.

Vulnerable Zones and Affected Regions

Authorities have flagged vulnerable low-lying coastal spots across all nine maritime districts in the state, urging residents to remain on high alert. Critical stretches under immediate watch include:

  • Thiruvananthapuram: Kappil to Pozhiyoor

  • Kollam: Alappad to Edava

  • Alappuzha: Chellanam to Azheekal jetty

  • Ernakulam: Munambam fishing harbour to Maruvakkad

  • Thrissur: Attupuram to Kodungallur

  • Malappuram: Kadalundi Nagaram to Palappetty

  • Kozhikode: Chombala fishing harbour to Ramanattukara

  • Kannur: Valapattanam to New Mahe

  • Kasaragod: Kunjathur to Kottakunnu

Beyond Kerala, similar high-wave alerts have been extended to the Lakshadweep archipelago and select coastal sectors of Tamil Nadu, including Kanyakumari, Ramanathapuram, Thoothukudi, and Tirunelveli.

Strict Safety Protocols and Advisories

With sea surges expected to intensify, the state disaster management machinery has laid down strict safety protocols:

  • Relocation: Residents residing in low-lying, vulnerable zones are instructed to relocate to safer designated shelters.

  • No Sailing: Small boats, canoes, and fishing vessels must completely avoid venturing into the sea. Launching or docking vessels during peak swell activity is extremely dangerous.

  • Harbour Safety: Fishermen must securely moor their boats inside harbors, maintaining adequate gaps between vessels to prevent collision damages, while safely storing fishing gear.

  • Tourism Ban: All beach-centric tourism, water sports, and recreational shoreline activities remain suspended until INCOIS officially withdraws the warning.

Coastal communities have been asked to stay vigilant against sudden coastal erosion as authorities continuously monitor the evolving oceanic situation.