What conditions cause freezing rain?

Name: What conditions cause freezing rain?
Uploaded: 2012-02-09T10:21:05.000Z
Duration: 2 min 41 s
Description: As the cold snap continues, parts of the UK have been warned to expect freezing rain on Thursday, but what is it that makes the phenomenon occur?

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A band of freezing rain is forecast to sweep across parts of the UK on Wednesday, as February's cold snap continues.

But what makes this relatively rare phenomenon occur?

BBC weather forecaster Nick Miller explains.

For more information and all the latest forecasts, visit the BBC Weather website.

9 February 2012