Water level and flow at 2,155 ECCC hydrometric stations, one page per station with a daily-mean hydrograph. The Datamart keeps only about 30 days, so we archive daily to build our own history (since 2026-09-18).
Provisional real-time data from ECCC: not yet reviewed and subject to change. This site does not issue warnings; for flooding, check your province's official agency.
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Official flood information: Vigilance — Gouvernement du Québec
Environment and Climate Change Canada — Real-time hydrometric data (MSC Datamart) (provisional real-time data, sampled several times a day; daily means archived by us). Retrieved 2026-10-19 00:22 UTC.
Data Source: Environment and Climate Change Canada Environment and Climate Change Canada Data Servers End-use Licence.
OpenCanadaData is independent and is not affiliated with or endorsed by these data publishers. Always check with the official source before you go.