Is the Gallatin River flooding?

Montana · 3 gauges · Montana river levels

The Gallatin River is tracked by 3 USGS streamgauges in Montana. This page compares each gauge’s live water level against its official National Weather Service flood stage, refreshed every 15 minutes, so you can tell whether the Gallatin River is running normal, rising toward flood stage, or already flooding. 2 of 3 gauges have both a usable water-level reading and a published minor flood stage. Gauges without a published flood stage show water level and flow only. For nearby rivers, see all Montana river levels.

data refreshed 14 min ago

Readings may be delayed; check each observation time below. This gauge summary does not rule out flooding on unmonitored stretches or nearby streets.

River facts

The longest-running gauge on this river is Gallatin River near Gallatin Gateway, MT. The highest level ever recorded there was 7.38 ft on 17 June 1974, carrying 9,100 cfs. Peak records there go back to 1890 (97 annual peaks). It is currently at 1.40 ft, 6.0 ft below that record.

Drains 819 sq mi · gauge elevation 5,168 ft · source: USGS peak-flow record

GaugeStatusStageFlood stageUpdated
Gallatin River near Gallatin Gateway, MTNo flooding1.40 ft6 ft
Gallatin River at Logan MTNo flooding4.58 ft9 ft
Gallatin River above Deer Creek, near Big Sky, MTNo flood stage defined4.85 ft
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.