Monsoon rains picking up again in Northeast India

Northeast India is one of the rainiest pockets of the country during the Monsoon season. However, the rains have somewhat been subdued in the region for some time, leading to rainfall deficiency in some sub-divisions. For instance, rainfall in NMMT (Nagaland, Manipur, Mizoram and Tripura) region was deficient by 26% till August 4. While the sub-divisions of Assam and Meghalaya and Arunachal Pradesh were deficient by 23% and 8%, respectively.

But this should not be a cause of concern as normal rains in the region itself are very high. A deficiency of +/- 10% does not matter much.

Meanwhile, rainfall in Northeast India has again picked up with few places recording heavy to very heavy rain. In a span of 24 hours from 8:30 am on Tuesday, Jorhat in upper Assam has recorded 130 mm of rain, while Dibrugarh has observed 80 mm of rain. Cherrapunji in Meghalaya and Pasighat in Arunachal Pradesh have also witnessed 59 mm and 53 mm of rain, respectively during the same period. Mokokchung in Nagaland and Kailashahar in Tripura are not far behind with 42 mm and 46 mm of rain, respectively.

The weather systems in the Bay of Bengal and Chhattisgarh were sucking away all the moisture from Northeast India and leaving it dry. The winds were also easterlies, which are not considered favourable to give rain. However, the weather systems have now moved away from the region and the winds have changed to southerly/southwesterly. Therefore, rainfall in the region has picked up pace and is expected to become widespread. The rainfall in the region will sustain for at least 2-3 days more.

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