Another cyclone is brewing on the Bay but too far from Bengal to have any direct impact.
At most, the coastal pockets of South 24-Parganas, North 24-Parganas and East Midnapore may get some clouds and light rain in the weekend, said a Met official. In Calcutta, the impact is likely to be limited to a marginal rise in the Celsius, he said.
"The deep depression over southwest Bay of Bengal moved north-northwestwards with a speed of 10kmph during past six hours and lay centred at 11.30am on Wednesday over the same region, about 110km east of Trincomalee (Sri Lanka), 350km southeast of Nagappattinam (Tamil Nadu), 450km southeast of Puducherry and 530km south-southeast of Chennai," said a bulletin issued by the India Meteorological Department.
"It is very likely to continue to move north-northwestwards and intensify further into a cyclonic storm during next six hours. Thereafter, it will continue to move north-northwestwards towards Tamil Nadu coast skirting Sri Lanka coast during subsequent two days," the bulletin said.
Tamil Nadu is likely to bear the maximum brunt of the system. Neighbouring areas of Puducherry and Kerala will also get drenched, according to the forecast.
"The system is well over 1,000km from the Bengal coast. It is too far to have any direct impact on Bengal. Some moisture incursion in the form of southeasterly flow of winds is likely on November 30 and December 1. It may cause light rain in South 24-Parganas, North 24-Parganas and East Midnapore," said H.R. Biswas, head of the weather section at the Regional Meteorological Centre in Alipore.
"In Calcutta, the minimum temperature is likely to go up marginally from Friday. As of now, rain is unlikely in Calcutta," he said.
When the Bay system turns into a cyclone, it will be called Fengal, a name given by Saudi Arabia.