GUWAHATI, April 9 - Rainfall activities over the NE region are likely to continue till April 11. The present spell of rainfall over the region is the product of a trough produced by an induced upper air cyclonic circulation that initially ran from Punjab and adjoining Haryana to north west Bay of Bengal, which is now running from north coastal Odisha, across south Uttar Pradesh and north Chattisgarh. It is extending up to 0.9 km above the mean sea level.
Under the impact of the latter trough, a cyclonic circulation is lying over central Assam and its neighbourhood. This is extending up to 2.1 km above the mean sea level.
According to sources in the Borjhar-based Regional Meteorology Centre (RMC) here on Friday, between March 1 and April 7, Assam and Meghalaya Meteorological Sub-division received 225.7 mm of rainfall, against the normal of 109.6 mm for the period.
Arunachal Pradesh Meteorological Sub-division received 312.1 mm of rainfall during this period, against the normal of 254.1 mm and Nagaland-Manipur-Mizoram-Tripura (NMMT) Meteorological Sub-division received 222.9 mm of rainfall, against the normal of 104.5 mm for the period, said the RMC sources.
Assam and Meghalaya Sub-division is likely to receive scattered rainfall with 26 per cent to 50 per cent area being drenched by rains. The Sub-division is likely to receive fairly widespread rainfall with 51 per cent to 75 per cent area being drenched by rains. On April 11, the Sub-division is likely to receive scattered rainfall, source said.
Arunachal Pradesh Sub-division is likely to receive fairly widespread rainfall. It is likely to receive widespread rainfall on April 10 with its 75 per cent or more areas being drenched by rains.