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Marias River near Shelby

Critical Stages
8' - Action
9' - Flood
13' - Moderate
15' - Major

Latest Observation

Updated: 10:30 AM MST 12/16/25

Status: No Flooding

Stage: 4.75 ft

Flow: 1.59 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
11:30 AM 12/16 4.71 1.55
11:15 AM 12/16 4.72 1.56
11:00 AM 12/16 4.73 1.57
10:45 AM 12/16 4.74 1.58
10:30 AM 12/16 4.75 1.59
10:15 AM 12/16 4.78 1.61
10:00 AM 12/16 4.81 1.64
9:45 AM 12/16 4.83 1.66
8:30 AM 12/16 5.05 1.87
8:15 AM 12/16 5.11 1.94
8:00 AM 12/16 5.16 2
7:45 AM 12/16 5.18 2.03
7:30 AM 12/16 5.21 2.07
7:15 AM 12/16 5.22 2.08
7:00 AM 12/16 5.19 2.04
6:45 AM 12/16 5.14 1.98
6:30 AM 12/16 5.05 1.87
6:15 AM 12/16 4.99 1.8
6:00 AM 12/16 4.94 1.76
5:45 AM 12/16 4.92 1.74
5:30 AM 12/16 4.92 1.74
5:15 AM 12/16 4.92 1.74
5:00 AM 12/16 4.95 1.77
4:45 AM 12/16 4.98 1.79
4:30 AM 12/16 5.02 1.84
4:15 AM 12/16 5.17 2.02
4:00 AM 12/16 5.47 2.38
3:45 AM 12/16 7.45 5.36
3:30 AM 12/16 7.53 5.51
3:15 AM 12/16 7.11 4.74
Hydrograph for Marias River near Shelby
14.5' - Water encroaches onto Interstate 15. Traffic is blocked. Some ranchers and other residents need to prepare for evacuation.
11.5' - A fairway on golf course floods. Williamson Park almost completely innundated.
9' - Water floods east and northeast portions of Williamson Park. Low spots on golf course flood.
DateStage (ft)
Jun 9, 1964 23.64
Jun 20, 1975 18.21
Jun 18, 1948 17.75
Mar 12, 1996 16.05
Jan 27, 2011 13.96
Jun 5, 1953 12.77
Feb 24, 1998 12.58
Feb 25, 1986 12.58
Jun 11, 2002 12.3
Jun 10, 2011 12.11
Mar 10, 2014 11.72
Jun 5, 1995 11.57
Mar 13, 1972 11.57
Jun 8, 1995 11.57
Mar 18, 1969 11.12
May 26, 2008 11.03
Feb 6, 1962 10.74
Jun 19, 2014 10.61
Feb 28, 1957 10.58
Jun 21, 2018 9.96

Data provided by the National Weather Service.