GUWAHATI, June 10 � Monsoon has arrived in the north-eastern region of the country. The India Meteorological Department (IMD) declared in its mid-day weather bulletin today that the south-west (SW) monsoon has further advanced into some parts of west central Bay of Bengal, remaining parts of east central and north-east Bay of Bengal, some parts of north-west Bay of Bengal, the entire Nagaland, Manipur, Mizoram and Tripura, Assam and Meghalaya, Arunachal Pradesh and some parts of Sub-Himalayan West Bengal.
It further stated that an east-west trough extends from west Uttar Pradesh to Assam across east Uttar Pradesh, Jharkhand and Gangetic West Bengal. The upper air cyclonic circulation over east Uttar Pradesh and its neighbourhood has merged with this trough. The upper air cyclonic circulation lies over Assam and Meghalaya and neighbourhood extends up to 0.9 km above mean sea level.
Between 8.30 am of yesterday to 8.30 am today, rain or thundershower occurred at many places over Arunachal Pradesh, Assam and Meghalaya, Kerala, Lakshadweep, Andaman and Nicobar Islands and Sub-Himalayan West Bengal and Sikkim, at a few places over south interior Karnataka coastal Andhra Pradesh and Madhya Maharashtra and at isolated places over Konkan and Goa, Rayalaseema, Bihar, Jharkhand, east Madhya Pradesh, north Chhattisgarh, Nagaland and Tripura, said the IMD bulletin.