Low forms in Bay, promises expansive monsoon phase

Vinson Kurian Thiruvananthapuram | Updated on June 09, 2020

A satellite image taken on June 9, 2020. Source: IMD website

Heavy rain for West Coast, Central India, East and N-E India

A low-pressure area has formed over the East-Central Bay of Bengal and neighbourhood on Tuesday as predicted by the India Meteorological Department (IMD), promising to take the monsoon to a vigorous phase along the West Coast and adjoining Peninsular India, Central India and East and North-East India over the next few days.

Squally weather (with wind speeds reaching 45-55 km/hr) may prevail on Wednesday from as far away as the South-West and adjoining West-Central Arabian Sea and the West-Central and adjoining North Bay on the familiar monsoon track, and along and off the Andhra Pradesh-Odisha coasts. Fishermen have been advised not to venture out into seas in these areas.

The low is expected to move initially West-North-West towards the Odisha coast, become more marked and gradually ease down South-South-West to Andhra Pradesh where it is expected to cross inland over the next 2-3 days. Also to be watched out for, is a western disturbance trooping in and extending a limb down into the North Arabian Sea to scoop up a circulation and push heavy rain into Saurasthra, Kutch and the adjoining Gujarat,  per IMD projections.

Western disturbance

The Bay low will bring fairly widespread to widespread rainfall accompanied with isolated heavy to very heavy rainfall over Odisha, North Coastal Andhra Pradesh and Telangana on Tuesday and Wednesday and over Central India from to Thursday to Saturday. Strong monsoon flows blasting into the West Coast will would trigger isolated heavy to very heavy rainfall from Wednesday to Saturday next door to Mumbai.

Outlook for Wednesday said that thunderstorms, lightning and gusty winds (with speeds of 30-40 km/hr) may line up the landscape over Jammu & Kashmir, Punjab and Odisha; with lightning over Tamil Nadu, Puducherry, Telangana, Coastal Andhra Pradesh, Interior Karnataka, Rayalaseema, Konkan, Goa, Madhya Maharashtra, Gujarat, Vidarbha, Chhattisgarh, Jharkhand, West Bengal, Sikkim, Arunachal Pradesh, Assam, Meghalaya, Nagaland, Manipur, Mizoram and Tripura.

Heavy to very heavy rainfall has been warned of over Odisha, Assam, Meghalaya, Nagaland, Manipur, Mizoram, Tripura, and Coastal Andhra Pradesh. It would be heavy over the Andaman & Nicobar Islands, Konkan, Goa, Telangana, Madhya Maharashtra, Rayalaseema, Chhattisgarh, Coastal and South Interior Karnataka, Kerala, Tamil Nadu and Puducherry on Wednesday as the monsoon steps up the pedal.

Set to consolidate

The low will make conditions favourable for further advance of the monsoon into Goa, some parts of Maharashtra, some more parts of Karnataka and Rayalaseema, remaining parts of Tamil Nadu, some parts of Telangana and Coastal Andhra Pradesh and some more parts of the North-Eastern States during the next two days.

Later, the monsoon would check into some more parts of Maharashtra, Karnataka and Telangana; remaining parts of Rayalaseema, Coastal Andhra Pradesh, the Bay of Bengal and the North-Eastern States, Sikkim, some parts of Odisha and the plains of West Bengal during the subsequent two days.

An extended outlook from Sunday to Tuesday said that fairly widespread to widespread rain/thundershowers and isolated heavy falls may return to Peninsular India, Central India and North-East and adjoining East India. It would be isolated heavy to very heavy over Konkan, Goa, Uttarakhand, Assam and Meghalaya. Isolated to scattered rain/thundershowers are also likely over the hills of and adjoining plains of North West India during this period.

Published on June 09, 2020

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