The city of Pembroke, Ontario, has reported minor flooding along the Ottawa River, with the potential for major flooding in the Arnprior to Cumberland areas in the coming week. Minor flooding results in the inundation of certain streets, lawns, and parks, affecting a limited number of buildings, while major flooding impacts numerous streets and buildings.
Past occurrences of major floods in the Ottawa River were noted in 2017, 2019, and 2023. The Ottawa River Regulation Planning Board has observed a rapid rise in water levels due to recent rain and snowmelt further upstream.
Forecasts indicate a gradual increase in water levels in the Pembroke area over the next days, with up to 30 millimeters of rainfall expected by Sunday. Water level updates from various measuring points on the river show:
– Pembroke area near 113 meters above sea level, expected to remain stable until Sunday.
– Fort-Coulonge area at approximately 108 meters, surpassing the record high for this date.
– Arnprior area around 75 meters, predicted to reach 75.5 meters on Sunday.
– Britannia area near 59.55 meters, forecasted to exceed 60 meters on Sunday.
– Hull area at about 43.5 meters, estimated to rise to 44.25 meters by Sunday.
– Thurso area at 42.4 meters, expected to reach 42.85 meters on Saturday.
The Rideau Valley Conservation Authority has warned of potential major flooding between Arnprior and Britannia over the weekend, extending downstream from Britannia starting Monday.
Residents in flood-prone areas are advised to check and secure sump pumps, generators, downspouts, and culverts to mitigate risks. The region is expected to receive around 15 millimeters of rainfall on Thursday according to Environment Canada.
Sandbags are being offered to residents in Pembroke and Ottawa for flood protection measures. Local authorities are closely monitoring the situation and preparing for potential flooding, with road closures and support services being arranged as needed.
Communities in Quebec are also on alert for minor flooding, with the possibility of impacts from the Ottawa River and other waterways. Safety precautions and flood preparedness measures are being emphasized across the region.
Residents are urged to stay updated on flood warnings and water safety alerts from their respective conservation authorities. Sandbag supplies are being made available in various locations for residents to prepare for potential flooding incidents.