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The heavy thundershowers relented over Assam, Meghalaya and Arunachal Pradesh after three days of pounding, especially in Cherrapunji, with only two cm being recorded here during the day on Monday.
But the figures for the evening and the night, when the thundershowers normally peak, were not available this (Tuesday) morning. These figures would need to be monitored for correctly assessing the change in trend, if any.
Especially since, as the India Meteorological Department (IMD) noted in the morning update, the weather-driving upper air cyclonic circulation was very much intact over Assam and neighbourhood.
A weather warning issued by the IMD said that isolated heavy rainfall would occur over Assam, Meghalaya and Arunachal Pradesh until Wednesday.
Meanwhile, an easterly wave was building over southeast Bay of Bengal, with upstream activity visible over the Gulf of Thailand across the border.
Satellite pictures on early Tuesday morning showed the presence of convective (rain-bearing) clouds over parts of South Andaman Sea.
The next level of clouds in the upper levels was traced to over parts of the Indo-Gangetic plains, sub-Himalayan West Bengal, Sikkim, the Northeastern States and extreme south peninsular India.
Forecast valid until Friday said that scattered to fairly widespread rain or thundershowers would occur over the Northeastern States and Andaman and Nicobar Islands.
Strong northwesterly winds would prevail over many parts of Indo-Gangetic plains on Wednesday.
The IMD also expected maximum and minimum temperatures to fall by 1 to 2 deg Celsius over many parts of northwest and adjoining central India on Wednesday and increase thereafter.
Extended forecast valid until Sunday said that fairly widespread rain or thundershowers would occur over Andaman and Nicobar Islands as the easterly wave looms large. Scattered rains are expected to continue over the Northeastern States.
Meanwhile on Monday, scattered rain or thundershowers were reported from Arunachal Pradesh, Assam and Meghalaya. Heat wave conditions have abated over Jharkhand and north Chhattisgarh and isolated pockets of east Madhya Pradesh, interior Orissa and Gangetic West Bengal.
Maximum temperatures were above normal by 2 to 4 deg Celsius over some parts of east Madhya Pradesh, Bihar, Jharkhand, Orissa, and West Bengal. The highest maximum temperature of 40.1 deg Celsius recorded at Gulbarga in Karnataka.
Minimum temperatures have fallen by 2 to 4 deg Celsius over parts of Rajasthan, Haryana, Punjab and Uttar Pradesh and by 1 to 2 deg Celsius over Gujarat, Madhya Pradesh and interior Maharashtra.The lowest minimum temperature of 10.8 deg Celsius was recorded at Amritsar.
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