The Hindu Business Line : Mercury may rise further in the North

Thiruvananthapuram, March 11 Rain clouds blown away north-northeast from the peninsular south chose to dump most of their moisture along coastal Tamil Nadu accounting for some heavy to very heavy precipitation through Wednesday.

The causative ‘low’ has faded away but the parent trough at the lower levels persisted on Thursday, an India Meteorological Department (IMD) update said.

MOISTURE LINGERS

Lingering moisture associated with the parent trough is still capable of setting up thundershowers over interior Tamil Nadu and adjoining Kerala, according to an IMD outlook.

Rain or thundershowers are likely at a few places over coastal Tamil Nadu during the next 24 hours and at isolated places thereafter. Isolated thundershowers have been forecast for south coastal Andhra Pradesh, interior Tamil Nadu, Kerala, Lakshadweep and Andaman and Nicobar Islands.

International models seem to suggest that higher-level westerlies that dipped low over the Arabian Sea to form a trough (now fading) and caused moisture-laden easterlies to rain down contents over Tamil Nadu coast are at it, yet again.

They are shown to plough deep into the south from this weekend and emerge with some moisture to be deposited along the west coast and parts of the west-central peninsula (west Madhya Pradesh and west Maharashtra).

MERCURY DOWN

Meanwhile, the rain and cloud over the peninsula have brought down maximum temperatures over the south peninsula. International models show the cooler climes propagating north along the west coast and also to parts of west-central and central peninsula.

This, according to meteorologists, is expected to come about with cloud formation and likely precipitation over these regions as implications from the emerging trough weigh in.

According to the IMD, current meteorological analysis and numerical weather prediction models suggested no significant changes in temperatures over northwest, west and central India during the next three days.

But short-term forecasts speak about mercury heading further north over other parts of the country from this weekend when both maximum and minimum temperatures are expected to seek new highs.

TO SHIFT EAST

According to international models, the maximum belt of heating would start moving east from the central peninsula from early next week. The heating would be felt over the North-East States as well, even as peninsular India enjoys the respite.

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