‘Low’ emnant guides wet spell over parts of Tamil Nadu, Central India

Gordon B. Johnson

The erstwhile deep melancholy that promised huge but delivered zilch for the South Peninsula could be lengthy lifeless and gone, but a trough that it remaining at the rear of will continue to spearhead a wet spell in excess of Central and adjoining South Peninsular India.

Moist air flowing from the trough and its ascending motion above a heated-up land sets up atmospheric instability, sparking violent weather conditions in the form of thunderstorms, lightning and high winds throughout the hills and plains of the region.

Western disturbance calls in

Arrival of western disturbances in the North and easterly bursts in the South usually direct to confluence of winds and formation of climate-creating circulations and troughs to preside over this kind of a violent climate sample, though localised in nature.

India Meteorological Division (IMD) situated a trough in the easterlies from the Gulf of Mannar to North Tamil Nadu this (Tuesday) morning. Meanwhile, a western disturbance lies about North India, with an axis over East Uttar Pradesh.

Troughs set up

The disturbance has remaining at the rear of a cyclonic circulation at its rear above South Rajasthan. A 2nd weather-producing trough operates down from this circulation more than South Rajasthan to South Konkan and Goa, throughout Gujarat.

The IMD reported in an update this (Tuesday) early morning that the trough from the Gulf of Mannar to North Tamil Nadu will induce scattered light to reasonable rainfall and/or thundershowers above South Tamil Nadu until tomorrow (Wednesday) and decrease thereafter.

Violent weather

Easterlies from this trough and north-westerly winds from the reverse facet will cause isolated mild to moderate rainfall with thunderstorms, lightning and gusty winds more than Maharashtra, Gujarat, East Rajasthan and West Madhya Pradesh for 3 days until finally Thursday. Isolated hailstorms are probable in excess of Madhya Maharashtra currently and tomorrow (Tuesday and Wednesday).

An extended forecast for the weekend and early upcoming 7 days (Sunday to Tuesday) hinted at the risk of isolated light to average rainfall over areas of Tamil Nadu, Kerala and the Nicobar Islands. Satellite pictures this (Tuesday) early morning show contemporary clouds establishing around extreme South-East Bay of Bengal and the South Andaman Sea.

Thorough outlook

A detailed outlook for right now (Tuesday) claimed thunderstorms accompanied with lightning and hail might line up at isolated places above Madhya Maharashtra with lightning and gusty winds (speeds of 30-40 kmph gusting to 50 kmph) at isolated sites about West Madhya Pradesh and South-East Rajasthan and with lightning over Gujarat, Konkan, Goa, Marathwada, South Tamil Nadu, Jammu, Kashmir, Ladakh, and the Andaman and Nicobar Islands.
As for tomorrow (Wednesday), the forecast favours thunderstorm accompanied with lightning and hail at isolated spots around Madhya Maharashtra with lightning and gusty winds (30-40 kmph gusting to 50 kmph) over South-East Rajasthan and with lightning around Jammu, Kashmir, Ladakh, Himachal Pradesh, East Madhya Pradesh, Gujarat, Konkan, Goa, Marathwada and the Andaman and Nicobar Islands.

Published on


March 08, 2022

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