This perfectly falls into the category of rapid intensification. If the cyclone wind speeds increase by 55 km/hr in 24 hours, we can term that as rapid intensification. We are now forecasting that it will become an ESCS category cyclone before becoming a very severe cyclone ahead of landfall. When the wind speed increases by 30 knots in 24 hours, it is rapid intensification. High ocean surface, subsurface temperature provides large amounts of moisture supply to the cyclone which leads to more intense, rapid intensification of cyclones.

Source: Hindustan Times May 13, 2023 06:06 UTC