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Gallatin River at Logan

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

Latest Observation

Updated: 1:00 AM MST 12/16/25

Status: No Flooding

Stage: 5.18 ft

Flow: 0.869 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
1:00 AM 12/16 5.18 0.869
12:45 AM 12/16 5.16 0.849
12:30 AM 12/16 5.17 0.859
12:15 AM 12/16 5.16 0.849
12:00 AM 12/16 5.16 0.849
11:45 PM 12/15 5.17 0.859
11:30 PM 12/15 5.19 0.88
11:15 PM 12/15 5.17 0.859
11:00 PM 12/15 5.18 0.869
10:45 PM 12/15 5.18 0.869
10:30 PM 12/15 5.17 0.859
10:15 PM 12/15 5.18 0.869
10:00 PM 12/15 5.17 0.859
9:45 PM 12/15 5.18 0.869
9:30 PM 12/15 5.17 0.859
9:15 PM 12/15 5.18 0.869
9:00 PM 12/15 5.19 0.88
8:45 PM 12/15 5.18 0.869
8:30 PM 12/15 5.17 0.859
8:15 PM 12/15 5.16 0.849
2:00 PM 12/15 5.15 0.839
1:45 PM 12/15 5.16 0.849
1:30 PM 12/15 5.16 0.849
1:15 PM 12/15 5.16 0.849
1:00 PM 12/15 5.16 0.849
12:45 PM 12/15 5.17 0.859
12:30 PM 12/15 5.15 0.839
12:15 PM 12/15 5.16 0.849
12:00 PM 12/15 5.15 0.839
11:45 AM 12/15 5.16 0.849
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.