File photo

(Mahesh G/BCCL Vijayawada)

Saturday, November 19: Heavy rainfall activity is set to resume over parts of Andhra Pradesh from the start of next week, thanks to a system that’s currently brewing in the Bay of Bengal.

As per the India Meteorological Department (IMD), a well-marked low-pressure area located over south Bay of Bengal is expected to move west-northwestwards and gradually concentrate into a depression over southwest BoB during the next 24 hours.

Thereafter, it will continue to move west-northwestwards — towards Tamil Nadu-Puducherry and south Andhra Pradesh coasts — during the subsequent three days. As it gets closer to the Indian coast, it will also trigger intense precipitation across India’s southeastern states.

Accordingly, the IMD has forecast light to moderate rains in most places and heavy showers (64.5 mm-115.5 mm) in isolated areas of south coastal Andhra Pradesh and adjoining Rayalaseema from Monday to Wednesday, November 21-23 (and possibly beyond).

In view of these predictions, the IMD’s Amravati-based regional met centre has issued a yellow watch (meaning ‘be aware’ of local weather situation) over eight southern districts within Andhra during this three-day forecast period. These include Krishna, Guntur, Prakasam, Kurnool, SPSR Nellore, YSR Kadapa, Anantapuramu and Chittoor.

The depression’s presence in the Bay will also lead to rough sea conditions, and therefore, the fisherfolk have been advised not to venture into southwest and adjoining west-central Bay of Bengal, along and off the Andhra coast, during this forecast period.

As for the temperatures, the winter chill is expected to take five to seven days to set in across Andhra Pradesh, according to a TOI report. Therefore, it is very likely that these week-long wet conditions will be immediately followed by a drop in both daytime and nighttime mercury levels by next weekend.

Thereafter, the IMD expects normal to below-normal night temperatures to prevail in most parts of the southern state throughout the winter season.

But for the next few days, it will be interesting to see just how big a role this upcoming depression-triggered rain spell plays in normalising Andhra’s November rainfall stats. The state has recorded 45.8 mm precipitation so far this month, which marks a 38% ‘deficit’ compared to the average for the first 18 days of November (73.7 mm).

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