During November 28, an area of low pressure developed about 425 km (265 mi) to the south-southeast of Colombo, Sri Lanka. The disturbance was located within an area of warm sea surface temperatures and moderate to strong vertical wind shear, with atmospheric convection scattered around the disturbance's ill-defined low-level circulation center. On November 29, the storm gathered into a depression just off the southeastern coast of Sri Lanka, and the India Meteorological Department (IMD) gave the system the identifier BOB 07. Due to the storm's rapidly consolidating low level circulation center, the Joint Typhoon Warning Center issued a Tropical Cyclone Formation Alert, shortly before classifying it as Tropical Cyclone 03B on November 29. The IMD followed suit, upgrading the storm to a Deep Depression, and soon afterwards to Cyclonic Storm Ockhi. The storm tracked along Sri Lanka's southwestern and western coastline, towards the west-northwest, around the southern verge of a subtropical ridge located over India. Owing to highly favorable conditions, the storm displayed a thick convective ring, surrounding a well-defined eye feature on the same day. The storm tracked westwards and intensified further into a Severe Cyclone Storm, early on December 1. Soon afterwards, Ockhi intensified further into a Very Severe Cyclonic Storm.
Cyclone Ockhi undergoing
off the Gujarat
coast on December 4
As Ockhi moved further into the Arabian Sea, it travelled through an area of sea surface temperatures of 31 °C (89 °F) and decreasing wind shear; a 23 mi (37 km) eye became visible on satellite imagery, prompting the JTWC to upgrade it to a Category 3-equivalent cyclone early on December 2. On December 4, analysis showed that Ockhi was maintaining a source aloft, but there was restricted outflow on the western edge , due to a deepening trough advancing rapidly from the west. Increasing vertical wind shear along with a deep layered subtropical ridge to the east steered it to north-northeast, and dry air intrusion from the west gradually weakened the system. On the following day, the power of the storm quickly lessened as it encountered increasingly unfavorable conditions, including high wind shear. As Ockhi became embedded within a deep mid-latitude trough, the storm rapidly underwent an . Dry and cold air from the subcontinent rapidly weakened the storm, and it was last noted as a well-marked low-pressure area over the Gulf of Cambay on December 6.