TornadoLiveMap

Boulder River at Big Timber — water level right now

Sweet Grass County, Montana · NWS gauge BTMM8
Loading the latest reading…
–
current stage (ft)
 
8
minor flood stage
 
9
record crest
set 1997-06-05
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

minor · 8
Flood stageLevel (ft)What it means
Minor flood stage8low-lying roads and fields near the river start to flood

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
191997-06-05+1 above
28.562022-06-13+0.56 above
38.332020-06-01+0.33 above
48.251975-07-08+0.25 above
58.042011-06-30+0.04 above
67.891975-07-050.11 below
77.871974-06-180.13 below
87.841956-05-280.16 below
97.712014-05-290.29 below
107.681959-06-150.32 below
117.642018-05-270.36 below
127.62019-06-070.4 below

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Shields River near Livingston 27 mi away · loading… Stillwater River (South Central MT) near Absarokee 32 mi away · loading… Yellowstone River near Livingston 34 mi away · loading… Musselshell River near Harlowton 41 mi away · loading… Musselshell River near Shawmut 41 mi away · loading… Musselshell River near Lavina 57 mi away · loading…

Gauge details

NWS gauge IDBTMM8
USGS site06200000
CountySweet Grass
StateMontana
NWS forecast officeBillings
River forecast centerMissouri Basin River Forecast Center
Coordinates45.834, -109.939
Time zoneMST7MDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Boulder River at Big Timber

Is Boulder River at Big Timber flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 8 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Boulder River at Big Timber?

minor flood stage 8 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Boulder River at Big Timber?

The highest crest on file at this gauge is 9 ft, reached on 1997-06-05 — that is 1 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Billings and local emergency management.