Port Blair, July 3: The Indian Meteorological Department, RMC Kolkata has forecast heavy rainfall (07cm12cm) at isolated places over Andaman & Nicobar Islands. Under the influence of moderate to strong South West Monsoon current, strong South Westerly wind speed between 35 & 45 kmph and generally rough seas likely along and off Andaman and Nicobar coast. Fishermen have been advised to be cautious while venturing into the sea.