Did you know that the fastest recorded wind speed on Earth is 253 mph (407 km/h), which occurred on Barrow Island, Australia in 1996? This record was confirmed by the World Meteorological Organization. However, there are also reports of supersonic winds reaching speeds of over 2,600 mph (4,200 km/h) in human-built wind tunnels.

Source: https://www.livescience.com/planet-earth/weather/whats-the-fastest-recorded-wind-speed