|School students walk through rain in Patna on Saturday. Picture by Ranjeet Kumar Dey
Patna, Aug. 23: Overcast conditions and light rain in Patna and several other parts of the state today signalled a revival of monsoon in the region.
Weathermen have claimed that most parts of the state are expected to receive good rainfall August 27 onwards.
Meteorologists attributed the expected revival of monsoon to the movement of monsoon trough line from the foothills of the Himalayas to central Bihar.
It was, in fact, the position of monsoon trough line along central Bihar that led to downpour in most parts of the state, leading to flood in 14 districts.
Weathermen, however, claim such excessive rainfall is not expected this time.
“The monsoon trough line has started moving towards central Bihar and it is expected to lead to heavy rainfall in eastern parts of the state and moderate rainfall in western parts of the state around August 27. However, this rainfall would not be as high as that witnessed during the last weekend when the monsoon trough line was passing through the centre of the state,” said Ashish Sen, director, Patna Meteorological Centre.
Images from the Kalpana-I satellite showed convective clouds in most parts of northern and central Bihar around 2.30pm today.
The Met department has forecast light to moderate rainfall in many parts of central Bihar, including Patna, over the next 48 hours.
“As the monsoon trough line approaches the centre of the state, isolated rainfall would occur intermittently across the state over the next three to four days,” said Sen.
Considering the forecast of good rainfall in the coming days, the civic body has claimed to have taken all precautionary measures.
“Around eight teams have been formed to monitor the various low-lying flood-prone areas. The teams would keep identifying ways in which excess rainwater from these areas could be drained out. Manholes and catchpits are also being cleaned of waste material to allow the smooth discharge of rainwater. Maintenance of sump houses is also being done regularly and 54 portable pumps have also been kept on standby to deal with any exigency,” said a senior PMC official.
PMC faced a lot of difficulty in flushing out the waist-deep water from several low-lying areas in eastern Patna, including Rajendra Nagar and Kankerbagh, over the past week.
Rain deficiency down
Last weekend’s downpour significantly reduced the rainfall deficiency in the state.
Patna witnessed a rise of 51 per cent in monsoon rainfall during the past fortnight. From 45 per cent deficiency on August 8, rainfall in Patna rose to 6 per cent surplus on August 17.
Similarly, the statewide rainfall deficiency has come down from 29 per cent to 12 per cent during the same time.
Much of this recovery in deficiency was made during the downpour last weekend. Patna witnessed a record rainfall of 210mm in merely nine hours on August 14, breaking the earlier record of 205mm on August 30, 1997.
The downpour continued on August 15, when the city received another 102mm rainfall followed by 65mm on August 16.