Port Blair, Aug 27: Heavy rain (07-11 cm) is likely to occur at one or two places over Andaman Islands. Thunderstorm with lightning is also likely to occur at one or two places over Andaman & Nicobar Islands on Aug.28 & 29. For further enquiries / information, one may contact helpline of State Emergency Operation Centre at Helpline No. 1070 & District Emergency Operation Centre at Helpline No. 1077. For any emergency/assistance at sea, call Coast Guard SAR Agency at Toll Free number 1554.