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There is a 55 per cent chance of a weak La Nina affecting global weather and climate patterns over the next three months, the World Meteorological Organization (WMO) said on Thursday. La Nina usually brings a temporary cooling effect on global average temperatures but many regions are still expected to record warmer-than-normal conditions, the UN climate and weather agency said in its latest update. La Nina and El Nino are opposite phases of a Pacific Ocean climate cycle known as El Nino-Southern Oscillation (ENSO). La Nina is the periodic large-scale cooling of sea surface temperatures in the central and eastern equatorial Pacific Ocean and is linked to changes in tropical winds, pressure and rainfall. El Nino is the "warm phase" of this cycle. It often weakens India's monsoon and increases the chances of drought. According to the latest forecasts from WMO's Global Producing Centres for Seasonal Prediction, oceanic and atmospheric indicators in mid-November 2025 point to borderlin
A deep depression over the Bay of Bengal, which is in the process of intensifying into a cyclonic storm, will bring heavy rain in some districts of West Bengal from October 28-31, the IMD said on Sunday. It advised fishermen not to venture into the sea along and off the West Bengal coast from October 28-30, and asked all those already in the waters to return by October 27. The weather system, which is likely to cross Andhra Pradesh coast as a severe cyclone on October 28 night, will start bringing light to moderate rain in some south Bengal districts, including Kolkata, South 24 Parganas, Purba and Paschim Medinipur, Howrah, Jhargram, Purulia, Bankura and Hooghly, from October 27, the IMD said in a bulletin. Heavy rain will occur at one or two places in the south Bengal districts of North and South 24 Parganas, Purba and Paschim Medinipur, Jhargram, Howrah, Purulia, Purba and Paschim Bardhaman, Birbhum and Murshidabad between October 28 and October 31, it said. The IMD said heavy .
Puducherry has been hit by incessant rains since Tuesday noon, disrupting normal life, with nearly three cm recorded between 8.30 am and 5.30 pm, an official said. Home and Education Minister A Namassivayam said, "Due to heavy rains pounding the union territory, all schools and colleges in Puducherry and Karaikal regions will remain closed on Wednesday." Several roads were waterlogged, disrupting traffic across the region. Minister K Lakshminarayanan convened an emergency meeting with officials from the revenue, PWD, and local administration departments to review the situation. He instructed authorities to prepare all machinery to respond to any exigency.
Heavy rains lashed several parts of Kerala on Saturday, causing inundation of low-lying areas and a rise in water level in reservoirs, including Mullaperiyar dam in Idukki, prompting authorities to raise its shutters to release excess water. According to the India Meteorological Department (IMD), light to moderate rainfall or thundershowers are likely across the state over the next seven days. The weather agency issued an orange alert in Pathanamthitta, Idukki, and Kottayam districts on Saturday. A similar alert was issued for Kasaragod, Kannur, Kozhikode, and Malappuram districts on Sunday. An orange alert indicates "very heavy rainfall" ranging between 11 and 20 cm in 24 hours. On Friday night, heavy rain in Idukki district triggered flooding in Kumily, Nedumkanadam and Kattappana, where water entered several houses and residents were evacuated overnight, officials said. Around 45 families were shifted to safe places on Saturday, authorities said. A parked van was washed away