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Gallatin River at Logan

Critical Stages
8' - Action
9' - Flood
10' - Moderate
11' - Major

Latest Observation

Updated: 11:00 PM MST 12/14/25

Status: No Flooding

Stage: 5.2 ft

Flow: 0.89 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
11:00 PM 12/14 5.2 0.89
10:45 PM 12/14 5.21 0.9
10:30 PM 12/14 5.2 0.89
10:15 PM 12/14 5.2 0.89
10:00 PM 12/14 5.2 0.89
9:45 PM 12/14 5.22 0.909
9:30 PM 12/14 5.21 0.9
9:15 PM 12/14 5.21 0.9
9:00 PM 12/14 5.21 0.9
8:45 PM 12/14 5.2 0.89
8:30 PM 12/14 5.2 0.89
8:15 PM 12/14 5.21 0.9
8:00 PM 12/14 5.21 0.9
7:45 PM 12/14 5.19 0.88
7:30 PM 12/14 5.22 0.909
7:15 PM 12/14 5.22 0.909
7:00 PM 12/14 5.21 0.9
6:45 PM 12/14 5.22 0.909
6:30 PM 12/14 5.21 0.9
6:15 PM 12/14 5.21 0.9
6:00 PM 12/14 5.21 0.9
5:45 PM 12/14 5.23 0.919
5:30 PM 12/14 5.21 0.9
5:15 PM 12/14 5.22 0.909
5:00 PM 12/14 5.22 0.909
4:45 PM 12/14 5.2 0.89
4:30 PM 12/14 5.21 0.9
4:15 PM 12/14 5.21 0.9
4:00 PM 12/14 5.22 0.909
3:45 PM 12/14 5.21 0.9
Hydrograph for Gallatin River at Logan
9.9' - Water into USGS gage house.
8.8' - Water may be on small bridges and around railroad bridge footing.
8.7' - February 2019...Ice Jam. Water level near 8.7 feet. Water flooding farm field next to river.
8.3' - Minor lowland flooding near Logan.
8.1' - Lowland flooding occurs. Water may cross some smaller roads.
DateStage (ft)
Feb 5, 1963 11.88
Feb 17, 1969 11.85
Feb 28, 2019 10.87
Jan 29, 1975 10.63
Jan 1, 1980 10.32
Feb 9, 1996 10.18
Nov 26, 1993 10.18
Jan 16, 1974 9.9
Dec 21, 1983 9.87
Dec 27, 1996 9.87
Feb 1, 1968 9.8
Jun 8, 1997 9.8
Jun 14, 2022 9.75
Jan 29, 2001 9.64
Jan 2, 2011 9.57
Jan 23, 1982 9.54
Jan 3, 1979 9.38
Jun 30, 2011 9.35
Jan 7, 1971 9.3
Feb 4, 1985 9.16

Data provided by the National Weather Service.