English: Tropical Cyclone Marian was falling apart as it spun over the Indian Ocean west of Australia on March 5, 2021. The Moderate Resolution Imaging spectroradiometer (MODIS) acquired this true-color image of the storm on that same day. While Marian retained a cloud-filled center, the storm’s battle against wind shear had rendered Marian strongly asymmetrical, with convective banding pushed to the north and west of the center.

Marian formed as a tropical storm on February 26 and reached peak strength on February 28 when maximum sustained winds reached 115 mph (185 km/h) making it equivalent to a Category 3 storm on the Saffir-Simpson Hurricane Wind Scale. Tropical Cyclone Marian weakened slightly but remained a Category-2 strength storm most of the time through March 2 before meeting with increasing wind shear and dropping to tropical-storm strength on March 3.

At 1500 UTC (10:00 a.m. EST) on March 5, the Joint Typhoon Warning Center advised Tropical Cyclone Marian was located about 1,192 miles (1,918 km) west-southwest of Learmonth, Australia and carried sustained winds of 40 mph (64 km/h). The advisory stated that at that time, the core of the system had been completely sheared apart and was in a very unfavorable environment, with high vertical wind shear and low sea surface temperatures. They expect Marian to dissipate on March 6. Tropical Cyclone Marian poses no threat to land.