Kolkata/Bhubaneswar, Nov 15 (UNI) The severe cyclonic storm 'SIDR' over east central and adjoining west central Bay of Bengal today moved further northwards and lay centred about 530 km south of Kolkata.
According to an Indian Meteorological Department(IMD) report it was likely to intensify further and move in a northerly direction.
The system, with maximum sustained wind speed of 200 kmph was likely to cross the West Bengal-Bangladesh coast east of Sagar Island by around midnight tonight.
Under its influence, rain or thundershowers are likely at most places in West Bengal and Orissa with heavy to very heavy falls at a few places.
''Isolated extremely heavy falls (25 cm or more) are likely over coastal districts of West Bengal and north Orissa during the next 48 hours causing floods in low lying areas,'' the IMD report said.
Gale wind speed reaching up to 90-120 kmph are likely to commence by noon today. As the system approaches the coast, the gale wind speed reaching up to 180-200 kmph are likely along and off the coastal areas.
The report said storm surge of height 6-7 metres above normal astronomical tide was likely over coastal areas of South 24 Parganas and Midnapore districts in West Bengal and Balasore, Bhadrak, Kendrapara and Jagatsinghpur districts in Orissa.
As the sea condition will be 'phenomenal' fishermen had been advised not to venture into the sea.