Yesterday’s low pressure over northwest Bay of Bengal has intensified a round into being ‘well-marked’ this afternoon, driving rains into central and adjoining west India.
An India Met Department update said the monsoon was ‘vigorous’ over east Rajasthan during the 24 hours ending this morning.
Significantly, it was also ‘active’ over west Uttar Pradesh, west Madhya Pradesh, east Gujarat, Konkan-Goa, Madhya Maharashtra, coastal Andhra Pradesh and Telangana.
Centres receiving exceptionally heavy to heavy rainfall included Bulsar (26 cm); Dahanu (21 cm); Hoshangabad (15 cm); Koraput (13 cm); Dharmsala, Puri; and Mahabaleswar (10 cm each).
The offshore trough has reverted back to running from Gujarat but has ended at Karnataka, which means that areas south of it (Kerala) would witness only sporadic showers.
What is apparently scaling up the rainfall towards west India is the presence of an upper air cyclonic circulation each over Punjab and west Madhya Pradesh.
These are being overseen by a passing trough as part of a western disturbance over northwest and north India.
Rare ensemble
What the ensemble does is to pipe in moisture from wherever possible – the Arabian Sea and the offshore trough in the west and the Bay of Bengal in the east – spiral it up in the atmosphere where it promptly cools and heads down as showers.
It is forecast to dump extremely heavy rain over Gujarat and Konkan-Goa today. It will be heavy to very heavy over Madhya Pradesh, Madhya Maharashtra, Vidarbha, Chhattisgarh, Odisha and north coastal Andhra Pradesh.
As for tomorrow, heavy to very rainfall with extremely heavy falls are warned for Gujarat as also parts of Konkan-Goa. The rest of central India would also witness very heavy to heavy rains.
Almost similar conditions have been forecast for a third successive day on Thursday.