Port Blair, Oct. 16: Heavy rain (07-11 cm) is likely to occur at one or two places over A&N Islands on Oct. 17, 18, 19 & 20.  Meanwhile, due to squally weather, wind speed is likely to exceed 45 kmph over Andaman Sea along and off Andaman and Nicobar coasts. Fishermen have been not to venture into the sea from Oct.18 till Oct. 20. 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.