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Flood explained

You may have thought the drier, sunnier spell would help alleviate the flooding in the Richelieu Valley and Lake Champlain. And while it's true that it does help to have the rain stop, other forces are at play. And as from the beginning of the flooding, they have their roots south of the border in the US. Greg Hanson is a Service Hydrologist with the National Oceanic and Atmospheric Administration.

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