Eli5:How can you tell a tornado is happening by looking at radar?

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I slightly understand the hook and the old Doppler showing a purple or dark color representing debris, but I’m sure that’s only if the debris field is that high up and a large amount. When looking at radar now with representations of tornadoes, I find it hard to pick out which part of the radar shows it. I’m sure this won’t be a popular question but anyone with knowledge of radar, your expertise would be appreciated.

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Anonymous 0 Comments

Doppler radar can measure wind speed, so seeing the two sides of a funnel clouds winds can give a strong identification, since one side will be moving towards the radar at high velocity while the other is receding from it at similar speeds. This makes a strong case for rotation and approximate strength of the tornado, as well as a good estimate as to its direction.

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