Flooding in Chennai on Sunday, November 7, due to heavy rains over the weekend.  (BA Raju / BCCL, Chennai)

Citizen Portrait

(BA Raju / BCCL, Chennai)

Tuesday, September 27: Although the southwest monsoon has started to withdraw from the northern and central parts of India, it is still present in the southern parts of the country. In fact, after taking a backseat in the Southern Hemisphere this past week, the monsoon pattern has re-emerged in the South Peninsular region since yesterday.

Suddenly, heavy rains lashed several major cities like Chennai, Hyderabad and Vishakapatnam surprisingly in the evening hours of Monday. And forecasts from the India Meteorological Department (IMD) indicate that these rains will continue for the rest of the week.

Dispersed in light or light rain with space heavy fall (64.5 mm-115.5 mm), thunderstorms and lightning are expected over Tamil Nadu on Tuesday and Wednesday (September 27-28) and Coastal Andhra Pradesh from Tuesday to Thursday (September 27-30). .

Although the current forecasts for the next two days are correct, a yellow watch have been put in place in both districts until Friday, in order to urge residents to ‘refresh’ about the bad weather. Also, while all parts of the states will maintain the yellow watch for the next 72 hours at least, heavy rainfall is likely to occur over these parts on September 27 and 28. :

  • Tamil Nadu: Nilgiris, Coimbatore, Tiruppur, Dindigul, Theni, Erode, Salem, Krishnagiri, Dharmapuri, Tirupattur, Namakkal, Karur, Tiruchirapalli, Pudukkottai, Perambalur, Ariyalur, Thanjavur, Tiruvarur, Mayiladuthurai, Nagapattinam, Cuddalore, Kallakurichi
  • Andhra Pradesh: Srikakulam, Kurnool, Vishakapatnam, Guntur, East and West Godavari, Anantapur, Chittoor, Kadapa, Krishna, Kurnool, Nellore and Prakasam

These water patterns can be influenced by the cyclonic circulation over the west-central Bay of Bengal and its neighborhood at the lower and middle tropospheric levels.

The same system was also responsible for brief but heavy rains in Chennai during the afternoon and evening hours of Monday, which ended up trapping commuters. Although it only rained for one or two hours, it was enough to flood the roads, causing traffic jams and people suffering. Hyderabad was in for a similar shock when an unexpected disaster struck the city in the evening.

Meanwhile, the northeast monsoon is expected to be the main source of rain for Tamil Nadu to enter the state on October 20. hanging.

Both states have done well for themselves during this year’s southwest monsoon. Between June 1 and September 26, Tamil Nadu experienced 470.2 mm of rain, representing an ‘excess’ of 52%. Andhra Pradesh, on the other hand, saw 543.2 mm in the same length, registering a slight increase of 8%.

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