The Hindu Business Line : More rains for AP, Orissa from weekend

Thiruvananthapuram, Aug. 28 India Meteorological Department (IMD) has officially notified the possibility of an upper cyclonic circulation setting up a low-pressure area in the west-central Bay of Bengal during the first week of September.

An IMD update on Tuesday said the cyclonic circulation is likely to form over west-central and adjoining north-west Bay by Saturday (September 1), which may subsequently descend to form a ‘low’. Orissa and Andhra Pradesh stand to witness another wave of rainfall starting from the weekend.

‘Excited’ Bay

The Bay as a whole has remained in an ‘excited’ state over the past few days in a manner that could propel the transformation of any feeble circulation, ‘in situ’ or migrant, into a stronger monsoon weather system.

Significantly, the IMD also observed that the axis of the monsoon trough has shifted south-wards in anticipation. This could also bring an end to the ongoing weak monsoon phase from the anomalous positioning of the trough. The trough will now seek to toy with its usual northwest-southeast alignment along the plains representing near-active monsoon conditions.

On Tuesday, it passed through Anoopgarh, Churu, Nowgaon, Ambikapur and Chandbali before dipping into east-central Bay of Bengal.

Ongoing rainfall could lift from the east, the northeast as well as the southeast coast, although the latter mentioned could come bang under the rain belt emanating from the brewing ‘low’.

Pacific Typhoon

International weather models depict a scenario where the Bay continues to be ‘accommodatingly posited’ even after the ‘low’ blows over. This would mean the basin could resonate to the beats of a destructive typhoon projected to rage in the west-central Pacific around the same time. An active west Pacific basin, with its suitably manoeuvred storms, is known to keep the Bay in good humour.

Meanwhile, back home, the widespread rainfall with scattered heavy to very heavy rainfall from a persisting offshore trough is likely to continue over Konkan, Goa and Gujarat for another four days. Fairly widespread rainfall with isolated heavy to very heavy falls is also likely over coastal Karnataka, Kerala, Lakshadweep, Saurashtra, Kutch and Madhya Maharashtra.

Rains for north-west

Scattered to fairly wide-spread rainfall activity is likely over north-west India with possibility of heavy to very heavy falls over Himachal Pradesh and Uttarakhand during the next three days.

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