On Thursday morning at 8.30, the Chennai airport observatory had received 29.4 mm rain over the past 24 hours, according to the IMD’s Chennai office. Nungambakkam station got 26.4 mm over the same period.
In the week ending July 24, too, Chennai had received ‘large excess’ rainfall. Good amounts of rainfall on Monday and Wednesday brought 56 mm rainfall to the city, which is a 168% jump over the normal rainfall of 20.9 mm during this period. Nearby Tiruvallur and Kanchipuram districts also received excess rainfall.