St. Marys River at Sault Ste. Marie, Ontario

Chippewa County, Michigan · USGS gauge 04127885 · Michigan river levels

Is St. Marys River at Sault Ste. Marie, Ontario flooding right now?

St. Marys River at Sault Ste. Marie, Ontario measured 579.45 ft on 2026-10-27 18:30:00 UTC. No NWS minor flood stage is published for this gauge.

Gauge height

579.45 ft

as of 24 min ago

Streamflow

77,400 cfs

data refreshed 8 min ago

No National Weather Service flood stage is published for this gauge, so no flood category can be shown — why some gauges have no flood stage.

Nearby gauges

Gauge	Distance	County
Pine River at Mackinac Trail near Rudyard, MI	25.4 mi	Chippewa County
Pine River near Rudyard, MI	25.5 mi	Chippewa County
Tahquamenon River near Paradise, MI	45.6 mi	Luce County
Black River near Garnet, MI	56.4 mi	Mackinac County
Black River near Tower, MI	76.3 mi	Cheboygan County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location