Some 150 families have been evacuated in four tehsils of Goa following heavy rains and release of water from Tillari dam on Goa-Maharashtra border, the state Government informed on Thursday. Tourists and fishermen were advised to stay away from the sea. Chief Minister Pramod Sawant said the government was on high alert in view of the forecast of heavy rain in the next few days. Heavy rains lashed several parts of Goa, including the state capital Panaji, on Thursday morning.