Monday, October 19
The southwest monsoon advanced into parts of the south Bay of Bengal, south Andaman Sea, Nicobar Islands and some areas of the north Andaman Sea on Tuesday, the India Meteorological Department (IMD) said. The weather department said moderate to heavy rainfall lashed the Nicobar Islands over the past two days. The strength and depth of westerly winds over the south Bay of Bengal, Nicobar Islands and Andaman Sea increased in this period, with wind speeds exceeding 20 knots at 1.5 km above sea level and extending up to 4.5 km in some areas. The Outgoing Longwave Radiation (OLR), an indicator of cloudiness, also decreased over the region. These conditions met the criteria for the monsoon's onset over the region, it said. The weather office said conditions are favourable for the monsoon to adva
