karnataka: Karnataka received 249% excess rain in November | Bengaluru News – Times of India


BENGALURU: In an all-time record, Karnataka received 249% excess rainfall in November, which caused flash floods and widespread damage to crops and infrastructure.
Bengaluru recorded 224mm rainfall in November — 329% above normal. In the past 100 years, only twice before has the city had more rain than this in November — the first in 1916 and again in 2015.

“It has been an exceptional year for the state as it received more rain than in the recent past between October 1 and November 30, especially in the drought-prone districts of Kolar, Chikkaballapura, Tumakuru and Chitradurga,” said Manoj Rajan, commissioner, Karnataka State Natural Disaster Management Centre (KSNMDC).
October and November remained extraordinarily wet months throughout Karnataka, with the state recording 35% and 249% excess rainfall respectively. Coastal Karnataka, Malnad and south interior Karnataka received the highest rainfall, while north interior Karnataka registered normal rain.
During the monsoon (June to September), the state saw an overall average rainfall of 787 mm —only 8% more than normal. But in October and November, it received a staggering 530mm of rain.
“After four months of a vigorous monsoon, October and November are relatively dry months which helps farmers harvest the kharif crop before Dasara and Diwali depending on the crop,” said Rajan. “However, due to various factors, including successive cyclones, the monsoon spilled over a month, bringing excess rains.”
In a normal year, the southwest monsoon would retreat sometime in September-October, and the northeast monsoon would move in. However, this year, the southwest monsoon remained active over Karnataka till the end of October, leading to record rainfall across many parts of the state. This resulted in waterlogging and damage to roads. It also claimed over 100 lives and thousands of crores worth of crops (five lakh hectares) besides damage to public infrastructure. “The data shows there is a shift in the rainfall pattern across the state,” said Ravi Joshi, a meteorological expert. “The quantum, intensity and distribution has varied across regions. The amount of rain and number of rainy days have increased in the most arid zones of the state, while rainfall has decreased in tropical areas.”
Overall, the state recorded 1,317mm of rainfall this year (January to November), as against a normal of 1,144 mm, a departure of 15%. These rains have resulted in good inflows into major reservoirs in the state. IMD on Wednesday forecast above normal rainfall for December to February for south Karnataka.





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Sagar Biswas

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