Vikash Sharma

Seven low pressure systems formed over Bay of Bengal contributed towards major rainfall during July to September in the monsoon period in Odisha, the India Meteorological Department (IMD) said on Friday.

While releasing the salient features of the southwest monsoon season over Odisha in 2022, the IMD said three depressions formed in the month of August also caused excess (132% of LPA) rainfall over the state.

Several parts of the Odisha experienced very high amount of rainfall for two days on August 14 and 15 with state average of 120.7 mm which caused flood situation in some parts of the state.

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It is pertinent to mention here that the southwest monoon onset over Kerala was on May 29 and in Odisha it was on June 16 this year. The southwest monsoon covered the entire state on June 20 and entire country on July 2, 2022.

The monsoon withdrew from entire Odisha on October 21.

Other Salient Features

Seasonal rainfall over Odisha during the period from June 1 to September 30, 2022 stood at 1196.8 mm against long-term average value of 1150.22 based on data of 1971-2020. Thus, 104 % of the long period average (LPA) rainfall occurred over Odisha during this period.

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Important feature of this year’s southwest monsoon was that deficient rainfall was observed in the month of June in Odisha due to absence of low pressure systems. Above normal rainfall was received in peak monsoon months- July and August due to formation of consecutive low pressure systems over Bay of Bengal.

Monthly rainfall over Odisha during the month of June, July, August and September was 63%, 110%, 132% and 89 % of LPA respectively, said IMD. After the onset of monsoon, the state witnessed 2 days of vigorous rainfall activity, 27 days of active rainfall activity and 31 days of subdued activity and normal rainfall activity during the remaining period.