The Hindu Business Line : Rains seen returning to south coastal TN

Thiruvananthapuram, Dec 18 The Chennai Met Centre has said rain or thundershowers are likely to return to many places over south coastal Tamil Nadu during the next two days even as only isolated rain events were recorded in the State during the past 24 hours.

The fresh wave of rain is being sourced to moisture being swept in by easterly-to-southeasterlies from a trough over the southwest Bay and adjoining southeast Indian Ocean.

The Pudukottai, Thanjavur, Thiruvarur and Nagapattinam districts and a few places over the south interior too are forecast to receive showers during this period. Isolated rain or thundershowers are likely over the rest of the State, Puducherry, Lakshadweep and south Kerala.

A separate warning for isolated heavy rain has been issued for south coastal Tamil Nadu and Pudukottai, Thanjavur, Thiruvarur and Nagapattinam districts.

Minimum temperatures fell appreciably at one or two places over coastal and north interior Karnataka and parts of Tamil Nadu with the moist, warm easterlies being pushed into the extreme south.

Over northwest India, an incoming western disturbance has dropped anchor and is expected to cause scattered rain or snowfall activity during the next 24 hours. An approaching trough in the westerlies will further rev up the proceedings over the next two days.

Minimum temperatures are above normal by 3-5 deg Celsius over northwest and adjoining west-central India from warming induced by the ensuing cloud cover. They are above normal by 6-8 deg Celsius over west Rajasthan and parts of Gujarat.

An existing low-pressure area over southwest Arabian Sea is wilting under intense westerly wind activity. India Meteorological Department said that the ‘low’ has weakened into a trough in the region.

Its moisture content is getting sprayed as massive streaks in a north-northeast direction over Sindh (in Pakistan), Gujarat, Rajasthan and Jammu and Kashmir. This will fall as snow or thundershowers over the hills and plains of north and northwest India.

The elevated minimum mercury levels will stay as such for the next two to three days, subsequent to which they would gradually fall as the western disturbances passes away into the east.

COLD WAVE

The rain belt spawned by the western disturbance would lift from northwest India around December 23 as the causative trough weakens and moves away into the east-northeast.

More Stories on : Climate & Weather | Climate & Weather

Article E-Mail :: Comment :: Syndication :: Printer Friendly Page