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Special Video Report: Mt Tongariro eruption

In this special weather video Philip Duncan discusses the various wind flows that could impact future ash clouds – and what you can do to be prepared for possible ash.

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Jessica on 7/08/2012 8:41am

Can you please tell me what causes volcanic lightning?

WW Forecast Team on 7/08/2012 9:24pm

Hi Jessica – this link explains it (scroll down to "electricity")


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