There are no wind speeds to discuss on Mercury, since there is no atmosphere there.
No. The highest wind speeds in a tornado are estimated to be a little over 300 mph (480 km/h).
yes
Yes they can.
Anemometer is the instrument used to measure wind speeds. It usually consists of cups that rotate in the wind, with the speed of rotation providing an indication of wind speed.
As a category 3 hurricane, Sandy produced wind speeds of 115 mph in eastern Cuba.
No a wind vane measures or indicates wind direction.
highwind speed
South east
No
Mercury doesn't has wind because it has a very small atmosphere so then there could be no wind.
A sustained wind speed of 103 mph would earn a hurricane a rating of category 2.