A well marked low pressure area over the Bay of Bengal is likely to concentrate into a depression on Monday. The IMD said that coastal Andhra Pradesh is likely to witness moderate to heavy and extremely heavy rainfall over the next four days.

The low pressure area on Saturday over south Andaman sea and adjoining areas of southeast Bay of Bengal has organised into a well marked low pressure area. The well marked low pressure area is very likely to concentrate into a depression during next 24 hours and likely to intensify further thereafter. It is likely to move westnorthwestwards and reach near south Tamil Nadu coast around December 2.

Under the influence of the system, light to moderate rainfall or thundershower is likely over Tamil Nadu, Puducherry and Karaikal starting from Sunday and it could continue upto December 3 in the state and till December 1. Some of the areas under coastal Andhra Pradesh and Rayalaseema may also witness thunderstorms. In view of the forecast, the AP state government ordered not to go for fishing.

The IMD tweeted, "Scattered to widespread rainfall activity very likely over Tamil Nadu, Puducherry & Karaikal, Kerala & Mahe, Lakshadweep, south coastal Andhra Pradesh and south Rayalaseema during 01st to 03rd December, 2020. Isolated heavy to very heavy rainfall with moderate thunderstorm & lightning very likely over Tamil Nadu, Puducherry & Karaikal during December 1-3 and isolated extremely rainfall likely over south Tamil Nadu and south Kerala on 02nd December 2020."

In the last 24 hours, 9 cm of rain fall recorded in Kandukur, 6 cm in Kavali, 3 cm in Veligandla, Sitaramapuram, Konakamitla, 2 cm in Venkatagiri, Bestavaripeta and Udayagiri.

Various parts of Andhra Pradesh bore the brunt of the cyclonic storm Nivar in the past few days. According to the reports, 180 km length of roads have been damaged, several places suffered power cuts, many houses inundated.