Several coastal areas of Keralam are likely to experience sea incursion due to high waves today. The National Centre for Ocean Information Services has warned that waves measuring 1 to 1.5 metres are likely along the coasts of Thiruvananthapuram, Kollam, Alappuzha, Ernakulam, Malappuram, Kozhikode, Kannur and Kasaragod until 11.30 AM today.