INCOIS warning covers Kappil to Pozhiyur; authorities advise strict precautions
The coastal areas of Thiruvananthapuram district have been placed on alert after the Indian National Centre for Ocean Information Services (INCOIS) issued a bulletin forecasting a kallakkadal — a sudden swell surge — for Tuesday. The advisory warns of rough seas, elevated waves and the risk of coastal erosion along the shore between Kappil and Pozhiyur until 11.30 pm on Tuesday.
The INCOIS bulletin indicates that wave heights in the affected stretch could range from 1.0 to 1.6 metres, with specific stretches expected to record waves of approximately 1.4 to 1.5 metres. The district administration on Monday reiterated the centre's caution and directed residents, fishermen and visitors to take precautions.
"Fishermen and coastal residents should be vigilant against the rising swell waves during this period,"
The advisory emphasises that the sea is likely to become unpredictable during the event and urged people to refrain from visiting vulnerable shoreline areas. Smaller vessels and recreational boats were specifically warned against venturing into the sea until INCOIS withdraws its advisory.
- Timeframe: Until 11.30 pm on Tuesday.
- Geography: Coastline from Kappil to Pozhiyur in Thiruvananthapuram district (also notes impact on nearby Kanyakumari stretches).
- Wave heights: Expected 1.0–1.6 m; 1.4–1.5 m likely in some locations.
Practical guidance from authorities
The district administration has circulated safety measures drawn from the INCOIS bulletin. Key recommendations include keeping a safe distance from the waterline, avoiding all beach and sea-based tourism activities, and ensuring that fishing craft are securely moored in harbours. Where fishing boats are already at sea, the advisory warns against attempting to berth or land during periods of strong swell to prevent collisions and damage.
Authorities also recommended that fishing operators maintain safe spacing between vessels to reduce collision risk and take steps to secure equipment ashore. The bulletin additionally warned of a risk of coastal erosion along exposed stretches, advising residents in low-lying and vulnerable zones to be alert to changing shoreline conditions.
| Parameter | Advisory |
|---|---|
| Affected stretch | Kappil to Pozhiyur (Thiruvananthapuram) |
| Wave height | 1.0–1.6 m (1.4–1.5 m in some areas) |
| Valid until | 11.30 pm on Tuesday |
Local impact and preparedness
Thiruvananthapuram's coastline includes fishing villages, small harbours and public beaches that draw visitors. A kallakkadal event, characterised by an offshore swell that brings large waves without accompanying rain, can catch coastal communities unawares. While such surges do not always lead to widespread damage, the potential for hazardous surf, strong undertows and erosion requires caution.
Fishing associations and harbour authorities are likely to be monitoring the situation closely. The advisory underlines that vessels which have already put to sea should avoid attempting to return ashore while waves are high. The recommendation to keep equipment and boats secured is intended to limit property loss and reduce the risk of accidents during the swell period.
Residents and tourists are advised to follow updates from INCOIS and local administration channels. Any change in the advisory will be communicated through official bulletins, and the public is urged to adhere to instructions issued by coastal police, lifeguards and district authorities.
Given the concentrated timeframe and the nature of the phenomenon, timely compliance with the advisory is the key measure to prevent injuries and losses along the Thiruvananthapuram coast.
