Yesterday saw the spell of midnight rains for Chennai continue with almost all of the city recording moderate to heavy rains after 11 PM with light rains continuing as we put this post out early in the morning. The IMD observatory at Nungambakkam has recorded the highest rains for Chennai and surroundings. The preliminary numbers for City observatory is about 55 mm while for the airport it is 26 mm.
With two continuous days of midnight rains is today going to be the third consecutive day of midnight rains for Chennai? Models are indicating another rainy day possible from convective thunderstorm activity over the evening. But the caveat is how the initial conditions have changed overnight with the rains continuing well into the morning and possibly cloudy skies likely to continue through the early part of the day which will play a role in the prospect of rains for Chennai and surrounding areas.
Today we could possibly see weaker thunderstorm activity over North Tamil Nadu compared to the last couple of days. While we do not want to rule out rains for Chennai it is likely we could see subdued rainfall activity for Chennai and would be no surprise if the rains do not happen as models indicate. The city is likely to wake up to pleasant conditions with spell of passing showers during early morning and cloudy skies that is likely to ease later through the day.
While yesterday saw much less rains in West Coast around Mumbai things are likely to pick up today as an upper air cyclonic circulation closer to Maharashtra is likely to recycle the moisture available around the region making it possibly a rainy day with spells of heavy rains in between right through the day.