EARTH · RIVERS & FLOODS · CANADA
St. Lawrence River Discharge
The latest reading on the St. Lawrence at Québec City, Canada — from the Copernicus GloFAS model, reporting river discharge (cubic metres per second). The outflow of the Great Lakes to the Atlantic — one of the world’s steadiest large rivers thanks to its lake reservoirs.The figure below is live, shown with the time it was taken, and framed as a measurement of flow — never a flood verdict.
What this reading means
River dischargeis the volume of water passing this point each second, in cubic metres per second (m³/s) — the standard way hydrologists size a river. GloFAS estimates it by routing rainfall and snowmelt down the whole basin. On the probe, the St. Lawrence here read about 10,888 m³/s (high flow); the live figure above will differ with the season. It is a measure of how big the river is running — not a statement that it is flooding, which depends on the river’s own banks downstream.
About this reading
The St. Lawrence’s discharge is estimated by the Copernicus Global Flood Awareness System (GloFAS), served keyless via the Open-Meteo Flood API. The point used here is the river’s verified main-stem cell near Québec City, Canada— chosen so the reading tracks the trunk of the river rather than a side channel — and the model updates daily.
Nearby rivers
The closest rivers to the St. Lawrence— compare how much water each is moving.