Speed Post News Network
New Delhi : The Deep Depression over southwest Bay of Bengal moved west-northwestwards at a speed of 5 kmph during past 6 hours, intensified into a Cyclonic Strom “NIVAR” and lay centred at 530 hrs IST of November 24, 2020, over southwest Bay of Bengal near about 410 km east-southeast of Puducherry and 450 km southeast of Chennai.
It is very likely to intensify further into a severe cyclonic storm during next 24 hours. It is very likely to move west-northwestwards for next 12 hours and then northwestwards. It is very likely to cross Tamil Nadu and Puducherry coasts between Karaikal and Mamallapuram around Puducherry on November 25, 2020, evening, as a severe cyclonic storm with a wind speed of 100-110 kmph gusting to 120 kmph, according to the Cyclone Warning Division/ National Weather Forecasting Centre/Regional Meteorological Centre, New Delhi, of India Meteorological Department (IMD).
Fairly widespread to widespread rainfall/thunderstorm activity very likely over Tamilnadu, Puducherry & Karaikal from November 24 to November 26, 2020, and over south Coastal Andhra Pradesh, Rayalaseema from November 25 to November 26, 2020, and Telangana from November 26 to November 27, 2020.
Isolated extremely heavy rainfall activity also very likely over Tamilnadu & Puducherry (Pudukottai, Thanjavur, Tiruvarur, Karaikal, Nagapattinam, Cuddalore, Ariyalur & Perabalu districts on November 24, 2020, and Kadalur, Kallakurchi, Puducherry, Villupuram, Tiruvannamalai, Chengalpattu to Ariyalur, Perambalur and Karaikal districts on November 25, 2020, and over south Coastal Andhra Pradesh & Rayalaseema (Nellore and Chittoor districts) on November 25 & 26 and over Telangana on November 26, 2020, according to a PIB release.
Gale wind speed reaching 65-75 kmph gusting to 85 kmph is prevailing over Southwest Bay of Bengal. It would further increase to 100-110 kmph gusting to 120 kmph over the southwest Bay of Bengal from November 25, 2020, morning, for subsequent 18 hours.
Squally wing speed reaching 30-40 kmph gusting to 50 kmph is prevailing along & off Tamil Nadu, Puducherry, and adjoining South Andhra Pradesh coast and over Gulf of Mannar. It will gradually increase to E 100-110 kmph gusting to 120 kmph along & off coastal districts of north Tamil Nadu and Puducherry (Nagapattinam, Karaikal, Myladuthurai, Cuddalore, Puducherry, Villupuram & Chengalpattu districts; 80-90 gusting to 100 kmph very likely over Tiruvarur, Kanchipuram, Chennai, Tiruvallaur districts) during forenoon to night on November 25, 2020.
Gale wind speed reaching 65-75 kmph gusting to 85 kmph very likely over adjoining westcentral Bay of Bengal and along & off South Andhra Pradesh (Nellore & Chittoor districts), Gulf of Mannar and along and off districts of south coastal districts of Tamil Nadu during forenoon to night on November 25, 2020.
Tidal wave of about 1m height above the astronomical tide is very likely to inundate the low lying areas of north coastal districts of Tamilnadu & Puducherry near the place of landfall.
Damage expected :Major damage to thatched houses/ huts with possibility of rooftops being blown off and unattached metal sheets may fly. Damage to power and communication lines is also expected. Major damage to Kutcha and some damage to Pucca roads likely. Flooding of escape routes. Damage to embankments/ salt pans.