The greatest wind speeds as evidenced by the base velocity speed shading scale were the reported surface wind speed.

The greatest wind speeds as evidenced by the base velocity speed scale were bright red. In addition, the fastest wind speed not linked to tornadoes ever documented was for the duration of the passageway of tropical cyclone olivia on April 10 1996 which is an automatic weather station on barrow island australia recorded a maximum wind blast of air of 408 km/h (220 kn; 253 mph; 113 m/s).