Southwest Monsoon has been lashing the eastern region of the country from last one or two days. Particularly, torrential downpour has been witnessed over parts of Bihar, Jharkhand and West Bengal.
In fact, during last 24 hours as well, most regions of Bihar have witnessed vigorous rains. In a span of 24 hours from 08:30 am on Monday, Gaya witnessed a three digit rainfall of 237.8 mm. Heavy rains were observed over Patna and Aurangabad. Both the regions have witnessed sharp spells of 70 mm and 67 mm respectively.
However, some moderate to light spells were even recorded in few regions. During the similar time frame, Bhagalpur recorded 14.2 mm showers and Purnea witnessed mere rainy spells of 1.2 mm.
Two weather systems are said to have affected the climatic conditions of Bihar. Firstly, a low pressure area that persists over Gangetic West Bengal and adjoining regions. Alongside, an associated upper air cyclonic circulation is also seen extending up to 7.6 km above mean sea level.
Secondly, the western end of the axis of the Monsoon trough also continues to run in close proximity to the foothills of the Himalayas. Furthermore, the eastern arm of the axis of Monsoon trough is moving across Gorakhpur, Gaya, and the center of the low pressure area and further towards Bay of Bengal.
Both the above mentioned weather systems can be said to be the root cause of these heavy pouring over parts of Bihar.
At present, Bihar’s cumulative rainfall deficiency stands at 18 percent. However, possibility of a few light spells may in turn affect the rain deficiency and it may come close to normal.
Moreover, Bihar is expected to witness some more good rains during next 24 to 48 hours. The reason for possibilities of good rains over the state can be attributed to the low pressure area which is expected to move in a north direction towards eastern parts of Bihar.
Image Credit: alarmy.com
Please Note: Any information picked up from here must be attributed to skymetweather.com
