Recent Updates

Rainfall Data

Isolated rains in TN to continue till 18th January, MJO enters TN in February

Rains have been happening at isolated places in Tamil Nadu for the past 4 days. Particularly in the Anthiyur-Varatupallam belt in Erode and Virudhunagar belt. The easterlies based convergence at isolated locations are expected to happen 2 more days till 18th January. After which whatever isolated rains happening will become even more isolated. Coastal places such as Chennai too has chance in […]

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Tamil Nadu Rainfall recorded on 04.10.2021

Very heavy rains lashed Chinnmannur – Veerapandi belt as a result flash floods happened in some areas with Veerapandi recorded 124 mm rainfall while Ambasamudram in Vaigai River (not to be confused with Tirunelveli Ambasamudram) recorded 110 mm rainfall. We can see the flash floods near Koochanur (Theni) as a result of the rains here A UAC lies over coastal Tamilnadu […]

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Tamil Nadu Rainfall recorded on 03.10.2021

Kanyakumari town which is usually dry got close to 100 mm in an intense spell of rains while nearby Ashramam and Nagercoil too got good rains. In Nilgiris, Kodanadu,Kotagiri,Coonoor all got massive rains. These places have east opening. While little down the altitude in Mettupalayam, Karamadai and Nellithurai in Coimbatore also got very good rains. Easterlies vanthalae (comes na), these Coonoor belt […]

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Tamil Nadu Rainfall recorded on 02.10.2021

Villupuram, Kallakuruchi, Coimbatore and Ramanathapuram belt got heavy rains. In KTC, Katupakkam near Vandalur got 30 mm rainfall. A Upper Air Circulation lies over southwest Bay of Bengal and extends upto 5.8 km above mean sea level tilting westwards with height.  A trough in easterlies runs from the above cyclonic circulation to interior Maharashtra across Tamilnadu & interior Karnataka in lower tropospheric […]

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Tamil Nadu Rainfall recorded on 01.10.2021

Erode and Namakkal belt got heavy rains for 2nd straight day and there was flash floods seen there after a long time. Pudukottai and Perambalur belt got heavy rains too. In Chennai, Ennore got 50 mm of intense downpour in 30 mins. A Upper Air circulation extended upto 3.1 km above msl lay over central parts of south Bay of Bengal. The […]

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Rain Updates

Cyclone Updates

Heavy Rainfall for Kanyakumari & highwinds for KK, Pamban, Tuty, Vedaranayam- Delta belts

We have seen the template so many times, a cyclone crossing north AP or Odisha or West Bengal coast, the it activates the westerlies to  surge and converge over South Kerala and Kanyakumari regions. Even this year May month Cyclone Yaas when it crossed Odisha, Kanyakumari, Ramanathpuram-Pamban, Muthupet-Vedaranayam belt got to see high winds. Heavy rainfall Heavy to very heavy rainfall is […]

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Cyclone Yaas and Tamil Nadu Weather Update for coming days

No sleep, so this update at 3.00 am. So forgive for the typos and language. As winds converge around the low pressure the Veppa Salanam (Heat based or Sun based Convective) rains in Tamil Nadu will reduce. Once the low becomes Cyclone it will tightly wrap up the clouds around it. Hence, convergence will happen at sea around the low pressure are. […]

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Colaba records wind speed of 102 km/hr from Taukate, lets see historic Mumbai wind speeds from Cyclones

Past Cyclones that affected Mumbai Mumbai Cyclones are very very rare, very rarely we see cyclone making landfall as Cyclonic Storm in Kerala or Karnataka or Maharashtra. We can note down them and even memorize them. Have gone through the archives and found that two significant cyclones (1940 & 1948) that crossed near / over Mumbai. And have taken Nisarga too for […]

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Recent Articles

TWM Special: Mettur Dam close to breaking the 2005 outflows and other interesting stats

  1961 Inflow: 3,01,052 cusecs Discharge: 2,84,606 cusecs 2005 Inflow: 2,41,300 cusecs Discharge: 2,31,802 cusecs 2022 Inflow expected: 2,00,000 cusecs Discharge expected: 2,10,000 to 2,30,000 cusecs 2018 Inflow: 1,95,000 cusecs Discharge: 2,05,000 cusecs 2013 Inflow: 1,63,072 cusecs Discharge: 1,22,617 cusecs 1924 before the construction of Dam, the flow was 4,56,000 cusecs. Remains the highest till date. 2019 the highest inflow was 2,30,000 […]

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Tamil Nadu Weatherman

Pradeep John