Northeast Monsoon: First Bout of Heavy Rains to Lash Tamil Nadu, Andhra, Kerala from October 29-31
Representational Picture
(Rajtilak Naik/BCCL)
Thursday, October 27: South India has had a tough few weeks. First, it needed to cope with the southwest monsoon’s reluctance to go away on time, then the extraordinary pre-northeast monsoon showers brought about appreciable crop injury and lack of life and property, and now, earlier than it may heave a sigh of aid, the northeast monsoon has come knocking on its door.
With the northeasterly winds setting in over the Bay of Bengal and South Peninsular India, the northeast monsoon rains are prone to begin over Southeast Peninsular India from round October 29, the India Meteorological Division (IMD) has indicated in its every day bulletin. This arrival marks a slight delay, contemplating the traditional date for northeast monsoon’s onset usually falls on October 20.
Aside from the northeasterly winds, nevertheless, two different meteorological techniques within the space are prone to affect the climate down south within the subsequent few days: a cyclonic circulation over the west-central and adjoining southwest Bay of Bengal and a trough extending between South Inside Karnataka and the southwest Bay of Bengal throughout Tamil Nadu.
Underneath the mixed affect of those techniques, scattered to pretty widespread gentle or reasonable rainfall with remoted heavy falls (64.5 mm-115.5 mm), thunderstorms and lightning are doubtless over Tamil Nadu, Puducherry and Karaikal from Saturday to Monday (October 29-31); and South Inside Karnataka, Coastal Andhra Pradesh, Yanam, Rayalaseema, Kerala and Mahe on Sunday and Monday (October 30, 31).
Moreover, remoted very heavy rainfall (115.5 mm-204.5 mm) is feasible over Tamil Nadu, Puducherry and Karaikal on Sunday and Monday (October 30, 31).
3-day rainfall accumulation from Thursday to Sunday
(TWC India Edit Group)
Given these forecasts, a yellow watch has been issued over all of the southern states for the respective forecast durations, in order to induce locals to ‘be up to date’ concerning the inclement climate.
As for district-level alerts, yellow watches have been issued throughout virtually all districts of Tamil Nadu, Kerala and Andhra in the course of the weekend, with orange alerts (which means ‘be ready’) issued over Tamil Nadu’s Tirunelveli, Thoothukudi, Thanjavur, Thiruvavur and Nagapattinam districts for October 30.
Additional, squally climate with wind pace reaching 40-45 kmph, gusting to 55 kmph is prone to prevail over the Gulf of Mannar, alongside and off Tamil Nadu and Sri Lanka coasts and adjoining southwest Bay of Bengal on October 29 and 30. The fisherfolk are suggested in opposition to venturing into the ocean in the course of the interval talked about above.
The northeast monsoon will get its identify from the winds blowing from the northeast course — they pick-up moisture from the Bay of Bengal and subsequently dump it over South Peninsular India (significantly the japanese aspect).
Additionally it is known as the winter monsoon (this season lasts between October and December) or the reverse monsoon (because the wind course reverses following 4 months of southwest monsoon’s southwesterly winds).
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