Amidst widespread showers across Kerala for the last 48 hours with strong south westerly winds, Indian Meteorological Department (IMD) on Wednesday announced that the monsoon has arrived in the state.
“We have three criteria for the declaration of the monsoon’s onset -widespread rainfall, winds of about 30-40kmh and outgoing long-wave radiation in a certain coordinate box being less than 200 watts per square metre. For the first time on Wednesday , all the three criteria have been fulfilled,“ said PCS Rao of IMD, Pune.
The 14 stations in Kerala where rainfall is being monitored for declaring the monsoon onset have reported widespread rainfall over the last 48 hours.“Areas like Alappuzha and Chengannur received around 150mm of rainfall till noon. Heavy showers were also recorded in Tamil Nadu, parts of southern Bay of Bengal and Karnataka,“ a statement issued by the IMD stated.
IMD has issued a warning for heavy to very heavy rainfall in Kerala till June 10. The State Emergency Operations Centre (SEOC) has warned fishermen to be cautious while venturing into the sea.
The northern limit of monsoon (NLM) passed through Kannur in Kerala and Chennai in Tamil Nadu on Wednesday .Over the next 48 hours, the NLM is expected to proceed further northwards.
“Over the next 48 hours, conditions are favourable for the advance of monsoon into some parts of central Arabian Sea, coastal Karnataka, remaining parts of Kerala and Tamil Nadu, some more parts of southern interior Karnataka, south Andhra Pradesh and central Bay of Bengal,“ the IMD added.
As for the onset of monsoon in Maharashtra, the Met de partment said while an accurate forecast cannot be provided at the moment, “parts of the state may receive showers in the next few days“.
“We cannot provide an exact date for the onset of monsoon in Maharashtra, but we have forecast the rapid advancement of the NLM through peninsular India over the next 48 hours.The NLM can touch parts of southern Maharashtra over the next four to five days,“ Sunitha Devi, director of weather forecasting at IMD, Pune, said.
However, another forecaster Skymet said monsoon showers may occur in parts of Maharashtra in the next two to three days. “The NLM is expected to reach southern parts of coastal Maharashtra over the next two to three days, during which the NLM is expected to be north of Ratnagiri,“ said Mahesh Palawat, chief meteorologist at Skymet.