Cyclone Gonu set several intensity records. When it became a very severe cyclonic storm on June 3, Gonu became the strongest tropical cyclone on record in the Arabian Sea. It was the only super cyclonic storm, which is a tropical cyclone with 3-minute sustained winds of at least 240 km/h (150 mph), in the region, until Cyclone Kyarr 12 years later. The JTWC estimated peak winds of 270 km/h (165 mph). Based on their estimate, Gonu was tied with the 1991 Bangladesh cyclone for the strongest tropical cyclone in the entire northern Indian Ocean (based on windspeed), and had the highest windspeed of any cyclone in this basin. On June 6, Gonu made landfall in extreme eastern Oman with winds of 150 km/h (90 mph), making it the strongest tropical cyclone on record to strike the Arabian Peninsula. With a damage total of $4.2 billion (2007 USD) and 50 deaths, Gonu became the worst natural disaster on record in Oman. Additionally, the storm was only the second cyclonic storm on record to strike Iran, with the other one doing so on June 4, 1898.