Rivers in Montana

Big Hole River near Melrose

Madison County, MontanaNWS MLRM8USGS 06025500Great Falls office

Below flood stage
1.86ftStage

Observed Tue, Sep 22, 2:15 PM MDT

Flood stage
6.00 ft
Record crest
8.09 ft1997

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood8.00 ft
Moderate flood7.50 ft
Minor flood6.00 ft
Action5.00 ft
  1. 8.00 ftThe town of Melrose begins to flood on the south end of town.
  2. 7.00 ftAgricultural land floods and irrigation systems need to be protected.
  3. 6.50 ftAt 6.5 Feet - May 2018 - Water continues to impact agriculutral land along the river and equipment near the river needs to be protected. A couple of homes in the Meriweather Subdivison impacted with basement flooding. Sections of Burma Road impacted.
  4. 6.40 ft6.4 Feet June 19, 2020. River was above flood stage. Cause - Snowmelt/runoff from rainfall about 2 days prior. Bigh Hole River upstream at BHD rose to about 6.6 feet. Downstream at Glen, it rose to about 6.5 feet.
  5. 6.20 ftAt 6.2 Feet on the Big Hole River...water starts to come out of its bank and affect a home/driveway near Glen. Look at staff gauge GNLM8...that should be around 6.5 feet on the Big Hole River near Glen for flooding around Glen. (June 2017)

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Crest history

84 crests on NOAA’s list since 1932.

#DateStage
1June 9, 19978.09 ft
2June 10, 19728.04 ft
3June 9, 19647.88 ft
4June 3, 19487.76 ft
5May 27, 19427.72 ft
6June 21, 19757.54 ft
7June 10, 20117.46 ft
8May 10, 19477.45 ft
9June 10, 19967.36 ft
10June 7, 19957.35 ft
11May 27, 19567.19 ft
12June 17, 19747.07 ft
13May 27, 20187.05 ft
14June 4, 19537.02 ft
15June 18, 20106.94 ft
16June 13, 19656.92 ft
17June 7, 19916.88 ft
18June 22, 19846.85 ft
19April 14, 19766.75 ft
20May 31, 20036.74 ft
21June 8, 19676.66 ft
22May 20, 19766.65 ft
23May 28, 19826.48 ft
24May 31, 19436.47 ft
25June 19, 20206.45 ft

Most recent crests

  • June 19, 2020: 6.45 ft
  • May 27, 2018: 7.05 ft
  • May 11, 2018: 6.21 ft
  • April 27, 2012: 5.25 ft
  • June 10, 2011: 7.46 ft
  • June 18, 2010: 6.94 ft
  • June 1, 2009: 6.21 ft
  • May 21, 2008: 6.16 ft
  • June 8, 2007: 4.42 ft
  • May 21, 2006: 5.49 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued routinely during the warm season, and as needed at other times of the year. Stage may be affected by ice during winter months.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.