As IMD announces Monsoon Onset widespread thunderstorms likely over S. India

Weather Update
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எப்பொருள் யார்யார்வாய்க் கேட்பினும் அப்பொருள்
மெய்ப்பொருள் காண்ப தறிவு – திருக்குறள் (அறிவுடைமை அதிகாரம்)

எந்தவொரு பொருள்குறித்து எவர் எதைச் சொன்னாலும், அதை அப்படியே நம்பி ஏற்றுக் கொள்ளாமல் உண்மை எது என்பதை ஆராய்ந்து தெளிவதுதான் அறிவுடைமையாகும் – மு. கருணாநிதி

On the day IMD announced the arrival of Southwest Monsoon over Mainland India, with parts of Kerala coast & extreme South TN coming under the Monsoon progress chart many parts of Peninsular India continued to see active thunderstorms. In an ironical twist parts of Kerala particularly over the high ranges saw thunderstorms move from East to West influenced by winds at 3 kms ASL altitude.

As William Shakespeare wrote in Romeo & Juliet “What’s in a name? That which we call a rose. By any other name would smell as sweet;” while rains in any form is welcome the key question here is “Is it fair for IMD to announce the onset yesterday when winds were not aligned enough even for the professionally untrained eyes of Weather Bloggers.

Today looks another promising day for interior Tamil Nadu with many places in line to benefit from the atmospheric instability triggered by pseudo wind convergence & temporary Easterlies at upper levels. Additionally the weak westerlies at lower levels do their own bit to push moisture across as well making it all in all a good day of thunderstorm tracking for weather bloggers. Unfortunately for Chennai it is going to be another so near yet so far day but worry not, the first spell of rains during Southwest Monsoon 2021 is not far away.