look news india
With the completion of the departure process of South-West Monsoon from most parts of the country, a new cycle of weather is going to begin. According to the latest bulletin of the Indian Meteorological Department (IMD), the meteorological conditions have become completely favorable for the arrival of North-East Monsoon i.e. ‘Northeast Monsoon’ over Peninsular India within the next 2 to 3 days. Due to the formation of north-easterly winds over the Bay of Bengal and strengthening of easterly winds in the lower troposphere, dense cloud cover has started forming over the coastal and interior areas of South India. The Meteorological Department has clarified that with this formal arrival of monsoon, there is going to be a long period of heavy to very heavy rain in at least 6 major states and union territories of Peninsular India for the next 5 to 6 days.
The details of the 6 states and regions of South India in which the Meteorological Department has issued yellow and orange alerts for the next five days are as follows:
-
Tamil Nadu: The north-east monsoon is considered the main lifeline for Tamil Nadu, as more than 48% of the state’s annual rainfall is received in this season. An alert of torrential rain accompanied by thunderstorms has been issued in coastal and delta districts including Chennai, Kanchipuram, Chengalpattu, Tiruvallur, Thanjavur, Nagapattinam and Cuddalore.
-
Kerala & Mahe: Widespread rainfall and lightning are expected across the state. There is a danger of landslides and waterlogging due to heavy rains in the hilly areas of Idukki, Wayanad, Kottayam and Palakkad.
-
Coastal Andhra Pradesh & Yanam: Due to clouds rising from the Bay of Bengal, there are chances of heavy rains with strong winds blowing at the speed of 40 to 50 km/hr in Visakhapatnam, Kakinada, Machilipatnam and Nellore.
-
Rayalaseema: Extremely heavy rainfall at isolated places is expected in Chittoor, Tirupati, Anantapur and Cuddapah districts during October 15 and 16.
-
South and North Interior Karnataka: Bengaluru Urban and Rural, Mysore, Mandya, Hassan and Chamarajanagar will see widespread rainfall, while districts of North Interior Karnataka have been forecast to receive heavy rainfall on October 17 and 18.
-
Puducherry & Karaikal: Strong winds and persistent moderate to heavy showers will continue along the coast in the Union Territory of Puducherry and its coastal areas.
The North-East Monsoon, also known colloquially as the ‘Retreating Monsoon’ or ‘Winter Monsoon’, is generally active during the months of October to December.
-
Wind direction: When winters begin in the northern and central parts of the country and high air pressure forms, winds start blowing from land to sea (north-east to south-west direction).
-
Process of absorbing moisture: When these dry winds pass over the Bay of Bengal, they absorb a large amount of moisture from there. After this, when these winds hit Tamil Nadu, Andhra coast and Western Ghats, they cause heavy rainfall.
-
Boon for agriculture and water resources: This monsoon plays the most important role in sowing of Rabi crops, cultivation of paddy and filling of large water reservoirs (Caveri, Vaigai and Periyar basin) in drought prone areas like Tamil Nadu, Puducherry and Rayalaseema.
IMD and Center for Marine Meteorology have issued special safety bulletin for coastal areas of Bay of Bengal and south-eastern Arabian Sea:
-
Red flags for fishermen: There is a possibility of high waves in the sea along the Gulf of Mannar, Comorin area and Tamil Nadu-Andhra coast and strong storm winds with a speed of 45 to 55 km/hour. Due to this, fishermen have been strictly advised not to venture into the deep sea for the next 4 days.
-
Warning of waterlogging in urban areas: Municipal corporations of big cities like Chennai, Bengaluru and Thiruvananthapuram have been instructed to keep pumping stations ready to remove water from low-lying areas and ensure cleanliness of sewer drains.
-
Alert to NDRF and SDRF: In view of the heavy rain alert, the National Disaster Response Force (NDRF) and state disaster teams have been kept on standby for quick response in sensitive districts of Tamil Nadu and Kerala.
On one hand, the southern peninsula of the country will remain drenched with torrential rains of north-east monsoon for the next 5-6 days, while on the other hand, the weather in North and Central India (Uttar Pradesh, Delhi, Punjab, Haryana and Madhya Pradesh) will become completely dry as soon as the effect of western disturbance ends. Due to dry north-westerly winds blowing in North India, the day will be sunny and the cold zone will strengthen with a gradual drop in night temperatures. According to meteorologists, due to the climatic conditions prevailing globally this year, there is every possibility of the southern states receiving normal to good rainfall during the north-east monsoon.