Flood Watch

GRCA Administrative Office, Port Hope

Statement Ended: Flood Watch

THIS FLOOD WATCH HAS ENDED: The Ganaraska Region Conservation Authority advises water levels are expected to rise in response to heavy rainfall overnight. The Ganaraska Watersheds received between 30 and 50mm of rainfall this morning, March 31st, 2026, and a further 10 to 15mm is possible by this evening. Water levels and flows in local streams have been slightly elevated over the past two days due to warm temperatures melting the remaining snowpack. Ground conditions are saturated and will not absorb any more rainfall leading to higher rates of runoff. With the forecasted rainfall today, water levels and flows will continue to rise into this evening and will likely peak overnight. High water levels in local creeks could cause flooding of adjacent flood plains and low-lying areas. This Flood Watch applies to the Ganaraska River and local creeks within the Ganaraska region and will be in effect until Wednesday, April 1st, 2026 at 8pm. Conservation Authority staff will continue to monitor conditions and provide updates as necessary.

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