The Indian Meteorological Department (IMD) has forecasted heavy rains over Assam, Meghalaya and Arunachal Pradesh on April 9 and April 10.
According to the IMD, a trough in the westerlies is currently running at 3.1 km above mean sea level.
As this system moves eastwards over the next 24 hours, it will gain support from the moisture invading the land from the Bay of Bengal.
Widespread rainfall, along with thunderstorms, lightning, and gusty winds blowing at the speed of 30-40 kmph, are all very likely over Arunachal Pradesh, Assam and Meghalaya on April 9 and April 10.
The IMD has issued yellow alert over all three states for both Friday and Saturday.
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The IMD has also issued advisory urging residents to “be aware” of the local weather situation.
Meanwhile, owing to the wet weather, the maximum daytime temperatures across the Northeast are also likely to remain low.
In spite of repeated rain events over the Northeast since the beginning of the pre-monsoon season on March 1, however, the precipitation recorded within the states in the region varies to a great extent.
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While Meghalaya has received 13% higher-than-normal rainfall worth 133.7 mm between March 1 and April 6, both Assam (58.8 mm) and Arunachal Pradesh (144.7 mm) have registered ‘deficits’ beyond 40% as compared to their respective long-term average rain figures for this period.