Cyclonic Storm Gaja is presently over West-Central Bay of Bengal and is moving towards Tamil Nadu coast. Moving in favourable zone, it is likely to become severe cyclonic storm shortly, However, as it nears the coast, it would weaken again and is expected to cross South Tamil Nadu by the evening of November 15 as cyclone or deep depression only.
With this, rains are expected to to pick up pace along the Tamil Nadu Coast, while rains would commence by November 15 over Coastal districts of Andhra Pradesh.
As per weathermen, rains are expected to continue until November 17 over South-coastal districts of Andhra Pradesh and parts of Rayalaseema. The districts which may receive light to moderate rain activities are Krishna, Guntur, Prassam, Nellore and Chittoor, whereas Cuddapah and Anantapur may receive isolated light rains.
From October to December, Andhra Pradesh receives heavy rainfall due to the formation of depressions and cyclones over Bay of Bengal. Also, these are the months for the Northeast Monsoon. Therefore, on and off rains usually continues until December over the entire state.
But this year, the onset of Northeast Monsoon was delayed and development of frequent weather systems in Bay of Bengal restricted the flow of northeasterly winds leading to dry weather conditions over Andhra Pradesh for prolonged duration. That is why, Coastal Andhra Pradesh is presently rain-deficient by 76% and Rayalaseema is deficient by 69%.
As these rains will not be very heavy, Therefore, we do not expect any significant decrease in rain deficiency for now.
Image Credits – Outlook India
Any information taken from here should be credited to Skymet Weather