Ottawa is no stranger to spring flooding, and this year is shaping up to be another season where residents along the Ottawa River and surrounding waterways need to stay vigilant as wet conditions sweep across much of Canada.
A Wet Spring From Coast to Coast
Environment Canada has issued warnings stretching from Manitoba all the way to Quebec, signalling that the 2026 spring flood season is arriving in force. Southern Quebec has already absorbed up to 40 millimetres of rain since the start of the week, with forecasts calling for additional precipitation in the days ahead. That kind of sustained rainfall, combined with snowmelt from a long winter, creates the perfect conditions for rivers and streams to overflow their banks.
For Ottawa and the surrounding region, spring flooding is a recurring concern. The Ottawa River, which forms the border between Ontario and Quebec, has historically seen dramatic rises during snowmelt and rain events. Municipalities on both sides of the river have learned hard lessons from past floods — particularly the major events of 2017 and 2019 — and have invested in better monitoring, flood mapping, and emergency preparedness since then.
What Ottawa Residents Should Watch
If you live near the Ottawa River, Rideau River, or any of the smaller tributaries feeding into them, now is a good time to check your property's flood risk. The City of Ottawa maintains flood plain mapping online, and the Ottawa River Regulation Planning Board publishes regular water level forecasts throughout the spring season.
For homeowners, a few practical steps can make a real difference:
- Clear your eavestroughs and downspouts so water drains away from your foundation
- Check your sump pump to make sure it's in working order before the heaviest rains arrive
- Move valuables off basement floors if you're in a lower-lying area
- Know your evacuation route if you live near a flood-prone stretch of riverbank
Province-Wide Readiness
Ontario Emergency Management and Quebec's civil protection authorities are both monitoring the situation closely. Across Manitoba, the Red River Valley — another perennial flooding hot spot — is also under watch as water levels rise with the season.
For Canadians living along major river systems, spring flooding isn't a question of if, but when and how severe. This year's combination of above-average snowpack in some regions and a wet start to April has put emergency management officials on alert earlier than usual.
Stay Informed
Ottawa residents can track local conditions through Environment Canada's weather alerts, the City of Ottawa's emergency management page, and the Ottawa River Regulation Planning Board. If you're in a flood-prone neighbourhood, signing up for the City's emergency notification system is a smart move heading into the wetter weeks ahead.
Spring in Ottawa is beautiful — but it pays to be prepared for what comes with the thaw.
Source: Global News Ottawa
