What is angular speed of a whirlwind in a tornado towards the centre?

Answer 1

The angular winds speed in a tornado varies as tornadoes come in both different sizes and their tangential wind speed varies.

First for tangential speed: minimum tornadic wind speed are estimated at 65 mph (105 km/h or 29 m/s) and the upper bound is believed to somewhere near 300 mph (483 km/h or 134 m/s). The average tornado likely has winds of about 80 mph (126 km/h or 36 m/s), but with the most damage coming from tornadoes with winds over 135 mph (217 km/h or 60 m/s). These are estimates primarily derived from tornado damage.

For size: the average tornado has a diameter of 50 yards (46 meters) wide, but sizes range from less than 10 yards (9 meters) to over a mile (1.6 kilometers). The largest tornado on record was 2.5 miles (4 kilometers) wide. Overall, stronger tornadoes tend to be larger, though this is not always the case. Furthermore, the strongest winds in many tornadoes, especially large, strong ones are not part of the main circulation but as part of smaller suction vorticies within the tornado, where winds may be up to 100 mph (45 m/s) faster.

Aside from these suction vorticies, the fastest winds are often found around the edges of an eyelike center of calmer air that is often 1/4 to 1/2 the width of the funnel.

However, even with this knowledge the workings inside a tornado are poorly understood.