Ruby River below reservoir near Alder, MT

Madison County, Montana · USGS gauge 06020600 · NWS RRBM8 · Ruby River flood status · Montana river levels

Is Ruby River below reservoir near Alder, MT flooding right now?

Ruby River below reservoir near Alder, MT measured 3.44 ft on 2026-09-11 01:45:00 UTC. No NWS minor flood stage is published for this gauge.

Gauge height

3.44 ft

as of 20 min ago

Streamflow

262 cfs

data refreshed 2 min ago

The highest crest on record was 8.52 ft on Wed, May 16, 1984.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

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.

Highest crests on record

Stage	Date
8.52 ft	1984-05-16
6.85 ft	1995-06-07
6.31 ft	2011-06-09
6.11 ft	1998-06-27
5.94 ft	1997-06-03

Last 7 days

Past 7 days · 3.35–3.48 ft

Nearby gauges

Gauge	Distance	County
Ruby River above reservoir near Alder, MT	3.7 mi	Madison County
Madison River near Cameron MT	17.5 mi	Madison County
Beaverhead River near Twin Bridges MT	19.3 mi	Madison County
Madison River at Ennis, MT	20.2 mi	Madison County
Ruby River near Twin Bridges MT	21.2 mi	Madison 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 · NWS gauge & forecast