The reason for this is associated with the low normal rains over the state during the Southwest Monsoon season. The normal rainfall of Tamil Nadu until June 25 stands at 47 mm. And till now the state has witnessed 30.5 mm of rains.
Almost 60 percent of the annual rainfall of Tamil Nadu is received during the Northeast Monsoon.
However, during the last 24 hours, scattered light to moderate Monsoon rains occurred over parts of Tamil Nadu. Salem recorded 28.4 mm of rain, followed by Parangipettai 8 mm, Valparai 12.8 mm, Chennai (Nungambakkam) 9.5 mm and Coonoor 0.5 mm.
These rains have been attributed to a cyclonic circulation which was persisting over Southwest Bay of Bengal off Tamil Nadu Coast. Now the cyclonic circulation has shifted over the West-central Bay of Bengal off Andhra Pradesh Coast. And Monsoon is also likely to remain subdued over the region.
Thus, the weather in Tamil Nadu is expected to go dry once again. However, isolated thundery activities with short spells of rain that will be localized, cannot be ruled out.
Talking about Chennai, during the next 24 hours, sky conditions over the city will be generally cloudy. One or two spells of light rain will occur in some areas. Maximum and minimum temperatures are likely to be around 37 and 28 degrees Celsius, respectively.
Image Credit: Wikipedia
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