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Grand River near Sumner water level

River gauge, Grand River, Missouri, United States

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Right now

Below flood stage

Water level

9.00ft Down 0.19 ft over the last 24 hours

Flow
1,150 cfs
Water temperature
58 °F
13 25 38 Highest onrecord 42.52 ft Minor floodstage 26.00 ft

History

History
9.09.19.2ftOct 16Oct 16Oct 17Oct 17Oct 189.09.19.2ftOct 16Oct 17Oct 18
Water level Minor flood stage

What this means

The Grand River near Sumner is at 9.00 ft, in the normal range.

It is 17.00 ft below the flood stage of 26.00 ft.

It has dropped 0.19 ft over the past 24 hours. In the last month it has stayed between 9.00 ft and 9.36 ft.

Fall is often low-water season on rivers, until steadier rain returns. The sensor also reports a water temperature of 58 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
42.52 ftJuly 10, 1993

Floating and fishing near Grand River near Sumner

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 26.00 ft, 17.00 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

52.00 ft
Water reaches the road surface of State Highway 139 bridge.
45.00 ft
Water reaches the bottom of State Highway 139 bridge.
44.00 ft
Water reaches the bottom of the Burlington Northern Railroad bridge which is located just upstream from the State Highway 139 bridge.
40.00 ft
Homes in northeast Sumner begin to flood.
37.00 ft
State Highway 139 floods a half mile east of Sumner.
28.00 ft
Rural roads are under water.
26.00 ft
Rural land adjacent to the river is flooded.
23.00 ft
Bottomland 1 to 2 miles south of the gage begins to flood.
9.00 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 59 %.

RankLevelDate
142.52 ftJuly 10, 1993
241.35 ftMay 30, 2019
340.02 ftJune 28, 2008
439.97 ftMay 10, 2007
539.57 ftMay 13, 2002
639.50 ftJune 8, 1947
739.20 ftSeptember 15, 2008
839.15 ftMay 29, 1996
939.11 ftMay 15, 2010
1039.09 ftApril 20, 2013

Weather at the gauge

The forecast is not available right now.

Sunrise 07:27 AM Sunset 06:31 PM Daylight 11 hr, 4 min First quarter 46%

Map

Other gauges on the Grand River

Gauge Level Compared with normal 24 hours Distance
Grand River near PattonsburgRiver gauge, Grand River 2.87 ft Below flood stage −0.07 ft 53 mi
Grand River near GallatinRiver gauge, Grand River 4.84 ft Below flood stage −0.09 ft 41 mi
Grand River at ChillicotheRiver gauge, Grand River 5.61 ft Below flood stage −0.12 ft 17 mi
Grand River near Fountain GroveRiver gauge, Grand River 1,190 cfs Normal −120.0 cfs 4.5 mi
Grand River below Sumner, MO (auxiliary gage)River gauge, Grand River 6.61 ft No reference yet −0.23 ft 1.6 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Locust Creek near LinneusRiver gauge, Locust Creek 36.4 cfs Normal −3.6 cfs 18 mi
Mussel Fork near MusselforkRiver gauge, Mussel Fork 30.0 cfs Normal −4.5 cfs 19 mi
Wakenda Creek at CarrolltonRiver gauge, Wakenda Creek 2.96 ft Below flood stage −0.84 ft 23 mi
Chariton River near Prairie HillRiver gauge, Chariton River 3.33 ft Below flood stage −0.13 ft 27 mi
Shoal Creek near BraymerRiver gauge, Shoal Creek 13.1 cfs Normal −2.4 cfs 28 mi
Medicine Creek near LaredoRiver gauge, Medicine Creek 39.8 cfs Normal −2.4 cfs 28 mi
Missouri River at WaverlyRiver gauge, Missouri River 13.91 ft Below flood stage −0.56 ft 32 mi
Thompson River at TrentonRiver gauge, Thompson River 11.69 ft Below flood stage −0.06 ft 35 mi

Questions and answers

What is flood stage for the Grand River near Sumner?

The official flood stage is 26.00 ft. The level is currently 17.00 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Grand River near Sumner today?

On Oct 17, 2026, 10:45 PM CDT, the water level was 9.00 ft. Down 0.19 ft over the last 24 hours.

Is Grand River near Sumner rising or falling?

Down 0.19 ft over the last 24 hours.

Is the level of Grand River near Sumner normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Grand River near Sumner?

The highest level on record is 42.52 ft on July 10, 1993.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:06902000 (Agency page)
Coordinates
39.64003, -93.27369 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 9.00 ft 2026-10-18 03:45 Provisional
Flow 1,150 cfs 2026-10-18 03:45 Provisional
Water temperature 58 °F 2026-10-18 03:15 Provisional

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How to cite

U.S. Geological Survey: Grand River near Sumner (usgs:06902000). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/missouri/grand-river-near-sumner

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.