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Rain deficit at 1% as twin ‘lows’ rev up monsoon in North; South under lean patch

Vinson Kurian Thiruvananthapuram | Updated on July 30, 2021

South goes under a lean patch

The rain deficit has been cut back to one per cent on Friday, which also witnessed intense flows over the plains of North-West India triggered by a prevailing well-marked low-pressure area over East India throwing up a fresh ‘low’ over central Uttar Pradesh, revving up the monsoon over North.

The well-marked ‘low’ may move West-North-West across south Bihar and  parts of Uttar Pradesh during the next 2-3 days bringing torrential rainfall over the entire area, the India Meteorological Department (IMD) said. Private forecaster Skymet Weather sees the weather systems merging.

Torrential rainfall seen

The IMD has forecast fairly widespread to widespread rainfall with isolated heavy to very heavy falls over Odisha, Gangetic West Bengal, Jharkhand and Bihar until Saturday and over east Madhya Pradesh and Chhattisgarh until Monday. Isolated extremely heavy falls were forecast over Jharkhand and north Chhattisgarh on Friday and is now predicted will lash east Madhya Pradesh on Saturday.

Widespread rainfall with isolated heavy to very heavy falls may continue over east Rajasthan and west Madhya Pradesh until Wednesday with a peak Sunday-Tuesday.

Current spell of widespread rainfall with isolated heavy very falls may persist over landslide-prone Himachal Pradesh, Uttarakhand and Haryana until Wednesday. Fairly widespread rainfall with isolated heavy falls may lash Uttar Pradesh during next three days until Monday.

Kolkata under siege

Skymet Weather said that Kolkata is under siege with the heaviest drowning rains of the season. It exceeded its monthly normal of 39.6 cm by a big margin amassing 52.5 cm rainfall, the 3rd best in the last 15 years. The hardest hit was Diamond Harbour with 21.8 cm rainfall, highest yet of this season.

Kolkata city recorded highest 24-hour rainfall at least since 2009. The earlier record of 14.3 cm was of July 10 of 2015, which has been overtaken by both the official observatories at Alipore and Dumdum. For the last three years in a row, the city had not recorded a three-digit (mm) rainfall in July.

Published on July 30, 2021

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