Convective (rain-driving) clouds are moving east to east Uttar Pradesh, Bihar, and Gangetic West Bengal along the Himalayan foothills and adjoining plains.

They are also seen rising over Assam, Meghalaya, Sikkim, Nagaland, Jharkhand, Chhattisgarh and Odisha in clear signs that the heavy rain belt is shifting in here.

Causative troughs

The seasonal trough in the northwest continued to hug the foothills of Himalayas, while in the east, it extended into Bihar and onward towards Assam, Meghalaya and Nagaland.

To the southwest of the country, the offshore trough ran down from south Maharashtra to Kerala.

Here, it is pumping up a fresh spell over peninsular India in Maharashtra, Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Puducherry.

A passing rain wave (a weak Madden-Julian Oscillation wave) across the Indian Ocean is seen as primarily engineering the latest rain wave over the South.

Uttarakhand scene

While the rain fury over Uttarakhand is abating, it is about to show its ugly head over Arunachal Pradesh, Assam, Meghalaya and foothills of West Bengal.

In the South, Tamil Nadu, Puducherry and south interior Karnataka are bracing for heavy rain over the next couple of days.

The extended prediction also favours heavy rain over Nagaland, Manipur, Mizoram, Tripura, and Bihar.

Rains for South

In the South, coastal Karnataka and Kerala will join south interior Karnataka, Tamil Nadu and Puducherry to join the party.

The US Climate Prediction Centre sees a blob of heavy rain building over interior Maharashtra and adjoining north interior Karnataka and peaking by the week-end.

This would come about as fresh activity over southeast Arabian Sea (off Kerala-coastal Karnataka) feeds in moisture into the trough moving in from the Bay of Bengal.

India Met Department too has put out a watch for heavy rains threatening to hit interior and adjoining western Maharashtra during this phase.

Related Topics
comment COMMENT NOW