Heavy Rainfall Over Northeast India: Assam- Meghalaya Most Affected
May 15, 2025, 4:03 PM | Skymet Weather Team
Severe Rainfall Across Northeast India; Risk of Floods, Landslides, and Severe Thunderstorms | Images: AI-Skymet
Pre-monsoon activity has been fierce and forceful over the northeast region. Assam and Meghalayahave witnessed heavy to very heavy rains. The weather activity is likely to continue for a week and may extend even further. Adjoining parts of Bangladesh have also witnessed deluges at a few places like Rajarhat and Netrokona. Assam Valley and Meghalaya have been lashed with heavy rainfall. Goalpara and Lakhimpur in Assam received 97mm and 96 mm of rainfall in 24 hours. Tura and Sohra registered 136mm and 56 mm of rainfall during this period. Heavy to very heavy rainfall is likely over Northeast India in general and Assam and Meghalaya in particular.
There is a cyclonic circulation over Upper Assam and the adjoining area. Another cyclonic circulation is marked over Bihar and its neighbourhood. Additionally, the monsoon current is picking up over the Andaman Sea. Shortly, another cyclonic circulation is likely to come up over the Southwest Bay of Bengal. Under their influence, a strong stream of southerly winds is getting pushed across the northeastern region.
The east-west trough from circulation over Bihar is extending deep into the valley. All these features put together will accentuate the pre-monsoon activity over Northeast India during this week and further extend to the next one as well.
Heavy to very heavy rainfall is likely over the entire northeastern region covering Assam, Meghalaya, Arunachal Pradesh, Nagaland, Manipur, Mizoram, and Tripura. Out of these, Assam, Meghalaya, and Tripura will be more vulnerable to copious rains. Lower Assam in the valley and the border region of Meghalaya with Bangladesh will be at risk of incessant heavy rains. This activity will spill over to neighbouring Sikkim and sub-Himalayan West Bengal.
The endangered locations over Lower Assam will include Dhubri, Golpara, Bongaigaon, Barpeta, Kokrajhar, Nalbari, Kamrup, Guwahati, and Dispur. In Meghalaya, all three hill ranges, namely, Garo, Khasi, and Jaintia, will be at risk of inclement weather conditions.
Typical pre-monsoon activity will extend to reach Shillong, Barapani, Nongpoh, Cheerapunji, Mawsynram, Jowai, Williamnagar, Baghmera, and Tura.
The heavy downpour will be accompanied by hazardous lightning and severe thunderstorms with strong winds. Most of the weather activity will take place in the evening, night, and early hours of the day. Many of the water bodies will be at risk of overflowing. The danger of landslides and disruption of connectivity will pose a challenge, and therefore, caution needs to be exercised.
