Multiple weather systems to bring heavy rain across India on Friday

Heavy rain, thunderstorms and hailstorms are likely across several parts of India on Friday, October 30, as the remnants of Cyclone Arnab continue to influence weather conditions over central and eastern India.The India Meteorological Department (IMD), in its forecast issued on Thursday, October 29, has forecast extremely heavy rainfall at isolated places in Bihar, alongside heavy to very heavy rain in parts of Uttar Pradesh, West Bengal, Sikkim and the Andaman and Nicobar Islands. Vehicles ply on a road amid heavy rain due to Cyclone Arnab. (Photo: PTI) Northern India is also likely to see unsettled weather, with thunderstorms, hailstorms and strong, gusty winds expected in several areas, including Delhi and the National Capital Region (NCR).HEAVY RAIN LIKELY IN BIHAR AND UPBihar is likely to experience heavy to very heavy rainfall, with extremely heavy rain possible at isolated places on Friday. The IMD has also forecast heavy to very heavy rainfall at isolated places over East Uttar Pradesh and Sub-Himalayan West Bengal and Sikkim. A satellite image shows the weather systems over the Indian subcontinent. (Photo: IMD) Jharkhand and Uttarakhand may receive heavy rainfall at isolated places, while Odisha could see thunderstorms accompanied by lightning and gusty winds. The Andaman and Nicobar Islands are also likely to receive heavy to very heavy rainfall, with thunderstorms and squally winds expected in some areas.The weather department has forecast hailstorms at isolated places over East Rajasthan, Haryana, Chandigarh, Delhi, Uttarakhand and West Uttar Pradesh. Commuters move amid light rain, in Ghaziabad, Uttar Pradesh. (Photo: PTI) Thunderstorms accompanied by gusty winds reaching 50-60 kmph are also likely at isolated places over Delhi, Haryana and Chandigarh.CYCLONE ARNAB GROWS WEAK BUT RAIN REMAINSThe continuing spell of rain is linked partly to the remnants of Cyclone Arnab, which crossed the Andhra Pradesh coast before weakening over land.According to the IMD, the resulting depression was over south Chhattisgarh and adjoining south Odisha on Thursday morning. The storm was moving northwards and was expected to weaken into a well-marked low-pressure area over north Chhattisgarh and adjoining northwest Odisha by Thursday evening. A satellite image shows Cyclone Arnab moving inland. (Photo: IMD) A low-pressure area is a region where atmospheric pressure is relatively low, encouraging air to converge and rise, potentially producing clouds and rainfall.The IMD has also identified a separate low-pressure area over the south Andaman Sea and neighbouring regions, which is expected to move west-northwestwards and could develop into a depression over the southeast Bay of Bengal and adjoining areas in the following days.These weather systems are expected to keep rainfall activity going across parts of eastern and southern India into the first week of November, even as conditions gradually change across other regions.- Ends