Port Blair, June 23: The Indian Meteorological Department, Kolkata has forecast heavy rain (07-11 cm) at isolated places over Andaman & Nicobar Islands in the next three days. Under the influence of moderate to strong Southwest monsoon current, strong Southwesterly wind speed between 30 and 35 Kmph and gusting to 45 Kmph and generally rough seas are likely along and off A&N coasts. Fishermen have been advised to be cautious while venturing into the sea.