This would escalate into a cyclonic storm over the next 48 hours and is likely to cross between Karaikal and Mahabalipuram around noon on November 25.
A low-pressure belt that is forming over the Bay of Bengal is expected to turn into a cyclonic storm over the next few days, bringing heavy to extremely heavy rains in parts of Tamil Nadu. The cyclone has been named Nivar and is heading towards the north coast of Tamil Nadu. A well-marked low-pressure area over the southwest and adjacent areas to the southeast in the Bay of Bengal is likely to form as a depression within the next 24 hours.
Weather experts believe this would intensify into a cyclonic storm over the next 48 hours and is likely to cross between Karaikal and Mahabalipuram around noon on November 25. The cyclone is expected to bring heavy rains to parts of Tamil Nadu starting November 25. A pre-cyclone alert was issued for Tamil Nadu and Puducherry and fishermen were warned not to venture off the southwestern shores of the Bay and Tamil Nadu until November 25. .
“Anglers are advised not to venture into the Equatorial Indian Ocean and the contiguous south central parts of the Bay of Bengal on November 22; over the southwest and adjacent central-west of the Bay of Bengal, the Gulf of Mannar and along and off the coasts of Tamil Nadu, Puducherry and southern Andhra Pradesh during November 22-25, ” Bulletin.
As the cyclone moves, the rains will be widespread with thunderstorm activity over Tamil Nadu, Puducherry and Karaikal between 24 and 26 November. On November 25 and 26, the southern coast of Andhra Pradesh, Rayalaseema and Telangana will see heavy rain activity.
Popular weather blogger Pradeep John has mapped out two scenarios for the cyclone, listing the districts that are sure to see rain in its wake. While in one, the delta region is expected to receive extreme rains, in the other, Cuddalore-Puducherry-
Following the latest bulletin from the Indian Meteorological Department (IMD), the Tamil Nadu State Disaster Management Authority (TNSDMA) tweeted a series of weather updates with warnings of heavy rain in parts of the state.
November 23
Thanjavur, Tiruvarur, Nagapattinam and Karaikal will experience heavy rains on Monday, November 23.
November 24
The next day, Tuesday, the isolated districts of Pudukkottai, Thanjavur, Tiruvarur, Karaikal, Nagapattinam, Cuddalore, Ariyalur and Perambalu are likely to receive extremely heavy rains.
According to IMD,
Extremely heavy rains can occur in isolated locations above Pudukkottai, Thanjavur
Tiruvarur Karaikal, Nagapattinam, cuddalore, Ariyalur and Perambalu on 11/24/20.
—- TNSDMA– TN SDMA (@tnsdma) November 22, 2020
Isolated locations over the Ramanathapuram, Sivagangai, Tiruchirappalli, Kallakurichi, Villupuram, Puducherry, Chennai, Kancheepuram, Thiruvallur, Ranipet, Tiruvannamalai, Tirupattur and Vellore districts can experience heavy to very heavy rainfall.
According to IMD,
Heavy or very heavy rains are likely to occur in isolated locations above Ramanathapuram
ssivagangai, Tiruchirappalli Kallakurichi Villupuram Puducherry Chennai Kanchipuram Thiruvallur
Ranipet Tiruvannamalai Tirupattur and Vellore districts on 11/24/20.
—- TNSDMA– TN SDMA (@tnsdma) November 22, 2020
November 25
Extremely heavy rains are likely to occur in isolated locations over the Delta, Cuddalore, Kallakurchi, Puducherry, Villupuram, Tiruvannamalai, Chengalpattu, Ariyalur, Perambalur and Karaikal districts on Wednesday.
Extremely heavy rain warning
According to IMD,
Extremely heavy rains are likely to occur in isolated locations over the Kadalur kallakurchi Delta districts
Puducherry Villupuram Tiruvannamalai Chengalpattu to Ariyalur Perambalur and Karaikalon 25.11.20.
—- TNSDMA– TN SDMA (@tnsdma) November 22, 2020
While the isolated places above Trichy, Namakkal, Karur, Erode, Dharmapuri, Salem, Krishnagiri, Sivagangai, Ramanad, Tirupathur, Ranipet, Vellore, Kancheepuram, Thiruvallur, Chennai and Chengalpattu will likely receive heavy to very heavy rains.
Rain warning
According to IMD,
Heavy to very heavy rains are likely to occur in isolated locations above Trichy Namakkal Karur, Erode,
Dharmapuri Salem Krishnagiri sivagangai Ramanad Tirupathur Ranipet Vellore Kanchipuram
Thiruvallur Chennai and Chengalpattu on 11/25/20
-TNSDMA– TN SDMA (@tnsdma) November 22, 2020
November 26
Heavy rains over isolated locations in Dharmapuri, Krishnagiri, Thirupathur and Vellore districts.
Heavy rain warning
According to IMD
Heavy rains are likely in isolated locations over Dharmapuri, Krishnagiri, Thirupathur and Vellore on November 26, 2020
—- TNSDMA– TN SDMA (@tnsdma) November 22, 2020
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