Kolkata: The city has received almost double (excess 96%) of the normal volume of Rain September, with the 20th of the month claiming the second September title in 14 years.
The excess rainfall has more than made for August which is relatively dry, when there are 34% under normal precipitation.
Ganga Bengal, also, 31% is more rainy so far this season (between June 1 and September 30), even as a kolkata and the overall rain of the Bengal Monsoon count is 31% and 15% above normal.
In September, the state received 39% of excess rain, while Bengal Gangetic had an 80% surplus.
North Bengal, which usually receives more rain than South, has dried this year.
Along with Sikkim, North Bengal has a 9% rain deficit, down from a 40% deficit in North Bengal and Sikkim last month.
The amount of normal rain for Kolkata in September is 318mm.
This year, he received 613mm, the Met Office said.
The city has rarely been like wet September in recent years, Weathermen said.
“Two rain trigger systems – one cyclone circulation on September 20 and the other is a low pressure fronts that hit on Wednesday – heavy rain that took the count above the normal sign.
Both trigger a long flood of night, where the city receives rain more than 100mm each Today.
We rarely found a wet September in recent years, “said Regional Meteorology Center (RMC) GK DAS.
The city has received 142mm rain on September 20, while the amount of rain touched 105mm on Wednesday.
September 20 turned out to be the most rainy September day in Kolkata since September 25, 2007, when the city has received rain 174.4mm.
“The two big days see the city receives rain of around 250mm.
But the rain does not really stop including.
The storm and local clouds floating from Bengal Bay continue to trigger a consistent drizzle.
We hardly have a sunny day in the last two weeks,” Add the watershed.
Rain of monsoon in Bengal Gangetic is largely produced by cyclone circulation originating from the Bay of Bengal which often turns into low pressure and depression.
Experts say a lot of this system is the remnants of larger systems produced in the South China Sea which floated into Bay Bay and “revitalized” after pulling moisture from the sea.
The low pressure fronts that hit Kolkata on Wednesday moved to Jharkhand on Thursday.
Cities and adjoining districts continue to receive lightning storms.