Chennai: A low pressure area has developed over the Bay of Bengal and is moving northwest. It is expected to approach the Tamil Nadu coast within the next two days. This will cause heavy rainfall to very heavy rainfall in Tamil Nadu and Coastal Andhra Pradesh, reported the India Meteorological Department.The Cyclone Warning Center (CWC) in Visakhapatnam has also issued a forecast for Andhra Pradesh. It predicted moderate to heavy rainfall over the next three to four days. This is informed by KVS Srinivas, MD at the CWC. Earlier this month, a similar Low Par area over the Southeast Bay of Bengal brought widespread rain to coastal districts of Tamil Nadu.The IMD has reported a drop in minimum temperature by 1- 2 degree Celsius in parts of Western Himalayan region, East Madhya Pradesh, Chhattisgarh, and interior Odisha. Meanwhile temperatures have rose by 1- 2 degree Celsius in Bihar, Gangetic West Bengal, West Madhya Pradesh, and parts of Northwest and Western India.Most regions in India are experiencing below- normal temperatures, except in South Peninsular India and Northeast India. According to the IMD, Maharashtra’s central parts and Marathwada are likely to see further drop in temperature. Pune reported a minimum temperature at 7.8 degree Celsius, 4.3 degree Celsius below normal. However, Mumbai’s temperature has remained unaffected. The Colaba observatory recorded a maximum temperature of 33 degree Celsius.These weather changes indicate varying conditions across the country with heavy rain in the South and a significant drop in temperature in Central and Northern region.