On Thursday evening, the Regional Meteorological Centre or RMC withdrew the red alert it gave previously for the districts of Chennai and Tiruvallur etc. Important news is that Red alert has been removed and orange alert has been issued by RMC for these districts. Till Friday morning, heavy to very heavy scattered rainfall would be in these districts.
Well marked low pressure area concentrated into a depression on Thursday evening and moved westwards at a speed of 18kmph and lay about 100km south- southeast of Chennai. This was mentioned by Mr. S. Balachandran, deputy director general of meteorology, Chennai.
He then spoke about how it would move west north westwards and cross the north TN coast between Chennai and Puducherry on Friday morning. During the landfall, strong winds up to 40 kmph would be there along the coastal districts in Tamil Nadu plus heavy isolated rains. Sporadic spells of heavy to very heavy rains were received in many places belonging to Chennai yesterday.
District of Tiruvallur recorded 11cm of rain and 10cm of rain was witnessed in the district of Cuddalore. Point to be noted is that until 5:30 pm yesterday weather stations in Nungambakkam and Meenambakkam recorded 4.8cm and 3.3 cm rains respectively.
At some isolated places over the districts of Chennai, Tiruvannamalai, Ranipet, Vellore, Tirupattur, Krishnagiri, Dharmapuri, Salem, Erode, Namakkal, Coimbatore, Tiruppur, Kallakurichi, Villupuram, Tirunelveli etc, there would be thunderstorms with heavy to very heavy rains. The fishermen have been asked not to go into the sea as the sea conditions would be rough for the next 24 hours.