Cyclone Biparjoy: The India Meteorological Department (IMD) on Wednesday predicted that all conditions are favourable for the onset of monsoon in Kerala by June 9 with Cyclone ‘Biparjoy’ rapidly intensifying into a severe cyclonic storm.
A senior IMD scientist said the southern peninsula will get rain under the influence of the cyclonic storm and a low-pressure system developing in the Bay of Bengal. However, further progress of the monsoon beyond the southern peninsula will happen after the cyclone degenerates.
Not a thumping start
“The cloud mass is concentrated around this system and enough moisture is not reaching the Kerala coast. Though the criteria for monsoon onset can be met in the next two days, it will not be a thumping start,” Mahesh Palawat, vice president (climate and meteorology) of Skymet Weather said.
After the onset over Kerala, the monsoon will remain “weak” until the storm degenerates around June 12, he said.
Persistence of westerly winds
The IMD forecast mentioned that the latest meteorological features associated with monsoon onset over Kerala show that there is persistence of westerly winds over the south Arabian Sea, an increase in the depth of westerly winds to middle tropospheric levels and increase of cloudiness over areas covering the southeast Arabian Sea, Lakshadweep and Kerala coasts.
“Under such a scenario, the conditions are becoming favorable for monsoon onset over Kerala during the next 48 hours,” the IMD said in its Wednesday bulletin.
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