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Flood outlook statement issued for North Bay-Mattawa

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The North Bay-Mattawa Conservation Authority says a wave of thunderstorms in the area will put added pressure on waterways ‘that are already at or above normal for this time of year.’

Environment Canada has issued a thunderstorm warning for the area and is forecasting 30-50mm or more in some areas.  These conditions are expected to last into the evening and overnight.

“Water levels on watercourses within NBMCA jurisdiction are at or above average for this time of year, due to the significant rainfall received earlier this week in some areas,” said Kurtis Romanchuk, NBMCA Duty Officer said in a news release issued Saturday afternoon.

“With the significant rainfall forecast, water levels are anticipated to rise.  As an urban waterway, Chippewa Creek tends to respond quickly to such rain events.”

Officials said both the Chippewa Creek and the La Vase River remain elevated while the lower Mattawa River also slightly higher than usual as a result of backwater effects from the Ottawa River.

These and other rural waterways in the area are expected to see an increased water level and will take more time to respond to the incoming rainfall.

“Localized flooding from area watercourses is possible if intense rainfall occurs, and water is likely to accumulate on roadways, parking lots and flat or low-lying areas.  Serious flooding is not anticipated at this time,” added Romanchuk.

Residents are asked to monitor shorelines and water crossing in order to respond to high water levels as necessary.

A close watch on local conditions and updated forecasts and warnings from Environment Canada is also recommended.  Staff at the North Bay-Mattawa Conservation Authority will continue to monitor weather and watershed conditions and provide updates if conditions change.

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