PATNA: Weathermen have predicted flood-like situation in several districts in north Bihar along the Indo-Nepal border due to heavy rains in the region in the coming days.
Private weather agency Skymet said on Monday that the rains will be triggered by the northward shifting of the trough line — on which monsoon rainfall largely hinges — towards the Himalayan foothills around July 13-14. The trough line is a low-pressure that stretches from west to east and takes along the heavy rain belt with it when it shifts.
IMD, too, issued an alert on Tuesday for heavy to very heavy rainfall at isolated places over Bihar till July 13. The national
weather forecasting agency stated on Tuesday that the trough line was passing across Punjab, Haryana and moving further north towards UP, Bihar and parts of West Bengal and the north-eastern states.
“During this period, the adjoining parts of
Nepal too would experience heavy showers. And when heavy rains lash the foothills of Nepal, the water flows down to the foothills of Bihar as well, thus causing some intense flooding,” Skymet forecast stated.
It added that places such as West Champaran, Gopalganj,
Sitamarhi, Madhubani, Koshi, Khagaria, and Supual are at the risk of flooding due to the incessant rains.
Incidentally, similar positioning of monsoon trough line close to the foothill of Himalayas in southwestern Nepal had led to heavy rainfall in the catchment area of Nepal, northeast India and Bihar from August 13 to 16, 2017, leading to flash floods in at least 18 districts of the state.
Nepal’s flood forecasting section of the department of
hydrology and meteorology has issued a flood alert on Monday for all major river basins across the neighbouring country sharing border with Bihar. An FFS flood forecast bulletin said the water level is expected to rise in major river basins of Bagmati river, which saw a bund breach downstream in Muzaffarpur district on Tuesday.
The Skymet bulletin on Monday had stated that the risk of flooding will increase after July 12. “For the next week or so, heavy rains may lash several parts of Bihar. The chances of a few very heavy spells cannot be ruled out, during this period.”
Incessant rains in the past 24 hours in Sitamarhi district and in the catchment areas of Nepal have given a push to the rising trends in rivers such as Bagmati, Adhwara group, Lakhandei and Rato. However, officials claimed that the rivers were flowing below danger levels so far.
The downpour lashed the West Champaran district as well. The Catchment areas of rivers such as Gandak, Bhapsa, Kosil, Masan and Manor among others in the
Tharuhat region were in spate on Tuesday.
Many wards in Bagaha Nagar Parishad witnessed excessive waterlogging, as electric power station and block office compound witnessed accumulated rain water. Vehicular movement between Madanpur to Paniyahawa on NH 727 was also paralyzed.