At the time, the official WMO body responsible for tropical cyclones in the Arabian Sea, the India Meteorological Department (IMD), did not name them.

Over the next few days, it developed a deep flaring convection near an exposed low-level circulation centre (LLCC) as it drifted in the open sea.

[3] Despite moderate to high vertical wind shear, the disturbance produced surface pressure falls of up to 2.7 mbar (hPa) in Port Blair, in the Andaman Islands, on June 19.

[6] Several hours later, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert (TCFA), with winds near 30 knots (56 km/h; 35 mph).

The JTWC noted in its Significant Tropical Weather Outlook for the North Indian Ocean on June 24 that strong monsoonal low-level flow contributed to increased cyclonic vorticity, with low vertical wind shear and warm sea surface temperatures.

[16] As it moved northwest just off the Pakistani coast, winds of about 26 knots (48 km/h; 30 mph) and a surface pressure of 990 mbar (hPa) were observed in Karachi near midday on June 25.

[18] Yemyin trapped 2 merchant ships: Al-Picaso and Lady Hamad, and 4 fishing boats: Al-Taif, Al-Noor, Sumbal Sultani, and Al-Tariq, 100 nautical miles (190 km; 120 mi) off Karachi.

[27] At least 380 people died in Balochistan,[28] with another 250 dead in Sindh and 100 in the North-West Frontier Province,[29] and further rains associated with the remnants of the cyclone hampered rescue efforts.

[18] The IMD, the official Regional Specialized Meteorological Centre for the North Indian Ocean, did not operationally upgrade or name the system due to intense Indo-Pakistani relations.