A low pressure has formed over the southwest Bay of Bengal and adjoining Sri Lanka off Tamil Nadu coast under the influence of the trough in the same area.
Under its influence, heavy rain would occur at isolated places in Krishna, Guntur, Prakasam and Nellore districts on Friday and in tein Godavari, Prakasam and Nellore districts on Saturday and Sunday, according to weathermen. Isolated heavy rain would also occur in Chittoor district till December 6. Moderate to rather heavy rain or thunder showers would occur at many places over south coastal AP and at isolated places over north coastal AP during the same period.
Strong winds from north-easterly direction with a speed of 45 to 50 kmph are likely to blow. Fishermen have been advised to be cautious, while venturing out into the sea, said a spokesman of the Cyclone Warning Centre (CWC). In Nellore district, streams and rivulets such as Swarnamukhi, Kalangi and Kaivalya river continued to overflow the roads at several places on Thursday, cutting off several interior villages from the highway and nearby towns. The Kaivalya river, which was in heavy floods on Wednesday, showed signs of receding but the vehicular traffic found it difficult to cross the stream between Manubolu and Gudur even on the second day.

Source : The Hindu