The Hindu Business Line : Northwest pelted as Bay heaves again

Thiruvananthapuram, Sept 21 The buzz is seen returning to the Bay of Bengal even as a predecessor depression, having wound its way into land and since weakened, brought extensive rainfall in the north and northwest over the past two days.

The end-season pyrotechnics have culminated in an inevitable flare-up over land as the depression crossed the path of an incoming westerly trough from the northwest border.

The lift-up against the Western Himalayas, subsequent cooling and condensation ensured that large parcels of moisture filling the region was harvested in terms of heavy to very heavy falls.

According to the Delhi Met Centre, the monsoon has been vigorous in Uttar Pradesh and Uttarakhand over the 24 hours ending Sunday morning.

The causative upper air cyclonic circulation (remnant of 02B, the Bay depression) was traced to over northwest Uttar Pradesh and adjoining Uttarakhand on Sunday.

MORE RAINS

Forecast for the next two days said rain or thundershowers are likely at a few places in Uttar Pradesh and Uttarakhand and at isolated places in the rest of northwest India except west Rajasthan.

India Meteorological Department (IMD) has joined the list of numerical weather prediction models keeping a watch for a fresh ‘low’ spinning up over the northwest Bay over the next two days.

Fairly widespread rainfall activity is being forecast over northwest Uttar Pradesh, Uttarakhand, Himachal Pradesh, Orissa, north Coastal Andhra Pradesh, Jharkhand, Bihar and Sub-Himalayan West Bengal.

Fairly widespread rainfall is likely to break out over Andaman and Nicobar Islands, Vidarbha and the North-eastern States.

Isolated heavy to very heavy rainfall is likely over Orissa, Uttarakhand, North Uttar Pradesh, and north coastal Andhra Pradesh, the IMD outlook said.

During the three days ending September 26, the rains are seen decreasing over north India but intensifying over central India, East Uttar Pradesh and adjoining Bihar.

ACTIVE MONSOON

Over west and west-central India, the monsoon was active over South Konkan-Goa.

Rainfall occurred at most places over North Konkan, at many places over South Madhya Maharashtra and Marathawada, at a few places over North Madhya Maharashtra and at isolated places over Gujarat region and Saurashtra.

In a significant development, the perennially rain-deficient Marathawada Met sub-division has returned to normal category as per IMD statistics updated on Saturday.

West Madhya Pradesh and Nagaland-Manipur-Mizoram-Tripura are only the two deficit subdivisions now.

But rains are already falling or are in the process of doing so at many places in these sub-divisions as the erstwhile depression dies out over land and way is being cleared for the next weather-maker in the Bay.

NEW PACIFIC STORM

Meanwhile, as forecast already, the northwest Pacific is hosting a fresh tropical storm, named Hagupit, which is moving in west-northwest direction and is seen blasting into Hong Kong as a strong Category-3 storm over the next few days.

The direction for Hagupit’s movement is seen as being monsoon-friendly in terms of its ability to send in a stray circulation/easterly wave into the Bay of Bengal, which could develop later as a weather-making system.

Going forward, some numerical already see the possibility of the Bay getting excited in this manner.

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