On January 17, 2025, a tropical low formed over the Indian Ocean off Western Australia.
On January 17, 2025, a tropical low formed over the Indian Ocean off Western Australia. By January 19, the storm had strengthened into Tropical Cyclone Sean—the second tropical cyclone of Australia’s 2024–2025 season.
The MODIS (Moderate Resolution Imaging Spectroradiometer) on NASA’s Terra satellite acquired this image at about 10 a.m. local time (02:00 Universal Time) on January 20, 2025. Later that afternoon, the cyclone had reached its peak strength as a Category 4 storm.
The storm’s center stayed offshore as it tracked southwest over the Indian Ocean. Though Sean never made landfall, it battered the Pilbara coast with strong winds and rain. The Australian Bureau of Meteorology (BoM) reported that Karratha received 274.4 millimeters (10.8 inches) in a 24-hour period, breaking the city’s single-day rain record.
Read more at NASA Earth Observatory
Image: NASA Earth Observatory image by Michala Garrison, using MODIS data from NASA EOSDIS LANCE and GIBS/Worldview.
