Heavy rain batters south Tamil Nadu, Delta districts as IMD sees fresh ‘low’ brewing by Sunday

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Exceptionally heavy rain was recorded over Tamil Nadu, Puducherry, and Karaikal in the 24 hours ending on Friday morning due to a well-marked low-pressure area over the Gulf of Mannar. However, by Friday, it weakened into a low-pressure area.

It is expected to weaken further and become inconsequential on Saturday, only to be replaced by a fresh low-pressure area upstream over south Andaman Sea by Sunday and sets up a march across the Bay of Bengal.

A parent cyclonic circulation may form in advance over south Andaman Sea as early as by Saturday, India Meteorological Department (IMD) said.

Headed towards TN coast

The fresh low-pressure area will move towards the Tamil Nadu coast on Monday and Tuesday and bring to bear its influence on the coast in the form of moderate to heavy to extremely heavy rain. On Sunday, heavy rain of 7 cm+ may lash the Andaman and Nicobar Islands ,while thunderstorms accompanied by lightning may roam over Tamil Nadu, Puducherry and Karaikal.

Squally weather with wind speeds of 35-45 km/hr gusting to 55 km/hr may prevail over Andaman sea. Fishermen are advised not to venture into these areas on Sunday; the Comorin area, Tamil Nadu coast, and Gulf of Mannar on Tuesday; Andaman Sea on Saturday and Sunday; south-east Bay of Bengal on Sunday and Monday; and over south-west and west-central Bay on Tuesday.

South TN, Delta battered

This comes on the heels of some exceptionally heavy rain battering south Tamil Nadu and adjoining Delta through Thursday until Friday morning. The 24 hours ending on Friday morning saw rain in significant to moderate amounts break out at most places over Tamil Nadu, Puducherry and Karaikal; at many places over Andaman and Nicobar Islands, Kerala and Mahe and Lakshadweep; at a few places over Rayalaseema; and at isolated places over south interior Karnataka, coastal Andhra Pradesh and Yanam.

Oothu in Tirunelveli district recorded an exceptionally heavy rain of 54 cm, followed elsewhere in south Tamil Nadu and Delta districts with Ambasamudram and Kovilpatty recording 37 cm each; Kannadaian Anicut and Kakkachi-35 cm each; Manjolai-32; Ayikudi, Nalumukku and Lalpet-31 cm each; Manimutharu-30; Palayamkottai and Manalmedu ARG-26 cm each; Srimushnam, Shencottah, Ramanadhi Dam Section, KM Koil and Servalar Dam-24cm each; Thenkasi andCheranmahadevi-23 cm each; Mayiladuthurai, Papanasam and Kilacheruvai-22 cm each; Avadi, Pelandurai, Sethiathope, GundarDam, Thiruvidaimaruthur, Tirunelveli AWS, Jayamkondam-21 cm each; Aduthurai AWS, Karaikal, Sendurai and Manjalaru-20 cm each.