AGARTALA, July 11 (TIWN): Northeast India is gearing up for once of heaviest spell of rains of the season so far. All thanks to active to vigorous Monsoon conditions over the region. Arunachal Pradesh, Assam, Meghalaya and Nagaland are at risk of heavy to extremely heavy rains during the week. Sikkim and Sub-Himlayan West Bengal would also record torrential rains during this period.

However, Manipur, Mizoram and Tripura would see light to moderate rains only, as impact of the trough would remain confined to upper areas of the region.

As reiterated by Skymet Weather, the Trough running along the Indo-Gangetic plains is now oscillating towards north over the foothills of Himalayas. In fact, the eastern end of the trough would be running through and through Assam, Arunachal Pradesh and Meghalaya.

This Trough is a semi-permanent feature during the Monsoon season, which keeps shifting east to west and vice-versa. Whenever the trough is moving along the foothills of Himalayas, Northeast India becomes susceptible for heavy to very heavy rains.

In accordance to this, rain intensity have already picked up pace as Monday saw heavy rains over many parts of Assam, Arunachal Pradesh, Sikkim and Sub-Himlayan West Bengal. In span of 24 hours from 8:30 am on Monday, Darjeeling  recorded 101 mm of rains, followed by North Lakhimpur 83 mm, Dibrugarh 68 mm, Pasighat 59 mm, Rangia 58 mm, Guwahati 53 mm, Majbat 33 mm and Gangtok 32 mm.