Average Rainfall Throughout Tamil Nadu; Deficit Widens to 40% in Chennai | The Climate Channel – Articles from The Climate Channel

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Showers in Chennai earlier this week

(R Ramesh Shankar / BCCL, Chennai)

Northeastern monsoon persists over Tamil Nadu and state continues to obtain scattered average rainfall this week. On Thursday, many elements of the state obtained substantial rainfall resulting from intermittent thunderstorms. Chennai additionally witnessed some night drizzles, however not enough to dent the rising deficit within the area.

The 24-hour rainfall accumulation from Wednesday morning to Tuesday morning was a most of 80 mm at Satyabhama in Kancheepuram district and Chidambaram in Cuddalore district. Amongst main cities, Cuddalore obtained the utmost rainfall of 63 mm. Parangipettai, Nagapattinam and Karaikal additionally obtained good rains starting from 30 to 40 mm.

Forecasts recommend that the rains will proceed for no less than one other three days throughout Tamil Nadu. The India Meteorological Division (IMD) forecasts scattered to pretty widespread rainfall with remoted heavy falls over Tamilnadu, Puducherry and Karaikal through the subsequent three days. Thunderstorms and lightning are additionally forecast within the area.

The regional met centre has issued a yellow-level alert for as many as 13 districts for Friday, together with Kancheepuram, Cuddalore, Puducherry, Thanjavur and Nagapattinam. Yellow watch recommends authorities to be up to date in regards to the potential impacts of remoted heavy rainfall. Comparable warnings are in place for a number of districts until subsequent Tuesday, November 26.

Chennai district obtained 8.6 mm of rainfall on Thursday, whereas the minimal temperature stayed round 3°C above regular. Transferring ahead, the met centre forecasts usually cloudy skies with gentle to average rain or thundershower in some areas until Tuesday. The sunshine drizzles aren’t serving to Chennai to cut back the rainfall deficit that has gone as much as 40% as on Friday.

In the course of the post-monsoon season, from October 1 to November 22, Chennai has obtained 317 mm rainfall towards the conventional of 524 mm. Tamil Nadu as a complete can also be dealing with a quite small deficit of 8% with 292 mm rainfall obtained towards the conventional of 319 mm.

The rainfall deficit has been substantial in Chennai over the previous few years. After the worst drought in 140 years in 2017, Chennai obtained solely 45% of the common rainfall through the northeast monsoon rainfall. One other failure in northeast monsoon rainfall this 12 months can spell doom for the coastal metropolis that reeled below a extreme water scarcity through the summer time of 2019.

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