Monday, October 12, 2015

Easterly rinse

The SWM has come down to 13 Deg North,in the SE coast [above Chennai] experienced the first nascent EASTERLY.
Whereas in west coast [Mangaluru] westerly were pronounced up to  925 hPa. Obviously the penetrating easterly and withdrawing (South) southwesterly meet in the west interior parts of TamilNadu to give copious rainfall..  Usually when withdrawal of SWM is felt only coastal and immediately adjoining area will get thunder showers. Whereas this time interior TN experienced TS.  However this is NOT uncommon also.
As the SUN  advances towards tropic of Capricorn heating in southern hemisphere will increase.Anyhow the last SWM wind will be blowing for another 72-96 hours over 10 Degree latitude & below  [i.e Kochi-Bodi-Theni-Madurai -Sivaganga-Devakottai-Thondi and / or slightly above and below NH49]. Then easterlies will rinse the entire TN there after

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