Biparjoy longest enduring cyclone over Arabian Sea stops onset of monsoon
Biparjoy longest enduring cyclone over Arabian Sea stops onset of monsoon
After bustling the Arabian Sea for over a week, Cyclone Biparjoy finally made landfall on the coastline of northwestern India and southern Pakistan on June 15. The cyclonic storm spent eight days in the sea, moving north at a slow speed until it took an eastern turn on June 14.
As per IMD, several factors impact the intensity of a cyclone that includes heat content, rotational power and humidity. Normally, the eastern part of the Arabian Sea is hotter and hence the cyclone is sustained long, due to enough heat and humidity feeding it continuously.”
The IMD Chief attributes the longevity of Cyclone Biparjoy to the larger sea surface area of the Arabian Sea. Adding that the Arabian Sea has a larger area in comparison to the Bay of Bengal and hence the cyclones are longer. Even in 2019, there was a super cyclone called Kyarr in the Arabian Sea which lasted nine days and 15 hours.
Biparjoy had a duration of almost 11 days but it is not unusual; Biparjoy’s speed was really slow and hence it lasted longer.
Another cardinal cause behind the long life of this cyclonic storm was its sluggish pace; an average of five km/h initially for the first two days and then remaining “practically stationary” for the next five days over the Arabian Sea. In its latter stage, the cyclonic storm made a turn and moved at a speed of eight km/h.
Meanwhile IMD predicts advancement of monsoon in few days.
News input KV Raman
