Kolkata: A cyclonic circulation over east Bihar, Bengal and Jharkhand and other atmospheric conditions are likely to bring widespread thunderstorms, heavy rainfall and squalls over parts of eastern and Northeast India till Thursday, the India Meteorological Department (IMD) said.
More thunderstorm activity is forecast on Tuesday, the time of occurrence cannot be predicted 24 hours in advance, according to meteorologists. Strong winds disrupted flight operations on Monday morning and seven aircraft had to be diverted.
Most such thundershowers are triggered by clouds forming over the Chhotanagpur Plateau and drifting eastwards. An abundance of moisture caused by the combination of four weather systems, especially the cyclonic circulation over Bengal, led to rain-bearing clouds forming over south Bengal on Monday.
In view of the warnings issued by the weather office, the district administrations have alerted all the blocks, asking them to take precautionary measures so that such incidents can be averted. The villagers in various blocks have been asked not to work out on the field during a thundershower.