PATNA: City denizens are likely to get reprieve from the worst heatwave conditions in a few days as the southwest monsoon is active over Bihar’s northeastern districts which are already receiving heavy rainfall. This has brought down temperature in south and central Bihar.
“With the monsoon clouds hovering over northeast Bihar, cool easterlies have started blowing across the state, which brought down the mercury by several notches. Though, the IMD may take two more days to officially announce the arrival of monsoon in Bihar, its several parts are receiving good amount of rainfall. In many districts, 5cm rainfall was recorded,” said IMD (Patna) director A K Sen here on Thursday.
Easterly winds and high level of moisture are highly favourable for the onset of monsoon. The level of moisture in the troposphere over the city and most parts of the state is very high at present because of the monsoon which has reached our doorstep. The wind direction will remain easterly for a few weeks. Considering the way the easterly component of the southwest monsoon is advancing over the Bay of Bengal, it is expected to hit Bihar by Saturday.
“In all probability, there will be light rain and thunderstorm activity in south and central Bihar also, except in Gaya and neighbouring areas which will remain dry,” said Sen. On Thursday, the temperature recorded in the city was 38.6 degree Celsius while Gaya recorded 41.1 degree C, down from the prickly 45 degree. However, once the monsoon reaches northeast Bihar, it will take another week to cover rest of the state.
Incidentally, for the last 10 years, the southwest monsoon has failed to keep date with not only with Bihar but also in the country. “The onset date of monsoon is correctly predicted on Andaman. But its normal outbreak date in Kerala often varies and the climatologists are also confused,” said the Met official.
“Climatologists are deliberating on the issue and hopefully by next year, the monsoon arrival dates will be revised keeping the last 10 years’ trend in view,” said Sen. “A normal arrival date is June 1 for the country and June 11 for Bihar, 4 days before or after. But it is crossing the benchmark of 4 for the last two-three decades and in several parts is delayed even by a week,” Sen said.