Port Blair, Oct. 15: Thunderstorm with lightning is likely to occur at one or two places over Andaman Islands and thunderstorm with lightning and heavy rain (07-11 cm) is also likely to occur at one or two places over Nicobar Islands on Oct. 16, 17, 18 & 19. For further enquiries / information 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.