StormCast — Weather & Emergency Alerts

Thompson River (IA/MO) near Trenton
Missouri — Water Level & Flood Stage

Located in Grundy County, Missouri on the Thompson River (IA/MO). Live water level data from USGS gauge 06899500, updated every 15 minutes.

Current Water Level

Gage Height

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Streamflow

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Last Reading

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Flood Stages

Major Flood

34 ft

Moderate Flood

31 ft

Minor Flood

27 ft

Action Stage

24 ft

Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.

What Floods at Each Level

45.9 ft

Water overtops the Highway 6 bridge located one mile west of Trenton.

39 ft

Water reaches the low-steel of the Highway 6 bridge located one mile west of Trenton.

31 ft

Southwest 30th Avenue floods a quarter mile south of Highway 6. In addition, backwater flooding along Muddy Creek begins to affect Morningsun Drive in southeast Trenton.

30 ft

Backwater along the Weldon River causes flooding at Northwest 22nd Avenue and Route A north of Trenton.

28 ft

Low lying areas north of the gage are flooded.

Impact statements from the National Weather Service, describing what typically happens at each water level.

7-Day Water Level Chart

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View Official NWS Hydrograph →

Historic Crests

Date Stage Flow
May 29, 201934.38 ft
May 29, 201934.38 ft
Sep 10, 201432.84 ft
Sep 10, 201432.84 ft
Jul 24, 200832.46 ft

About This Gauge

USGS Site

06899500

NWS LID

TTZM7

River

Thompson River (IA/MO)

County

Grundy, MO

Coordinates

40.0693°N, 93.6380°W

Get Flood Alerts for Thompson River (IA/MO)

StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.

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Frequently Asked Questions

What is the current water level of Thompson River (IA/MO) near Trenton?

The Thompson River (IA/MO) near Trenton gauge is maintained by USGS (site 06899500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.

What is flood stage for Thompson River (IA/MO) near Trenton?

The NWS-defined flood stage for Thompson River (IA/MO) near Trenton is 27 feet. Action stage begins at 24 feet. Moderate flooding starts at 31 feet, and major flooding at 34 feet.

How do I get alerts when Thompson River (IA/MO) rises?

Download StormCast free on Google Play, go to River Gauges, and add Thompson River (IA/MO) near Trenton to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.

Where is the Thompson River (IA/MO) near Trenton gauge located?

The gauge is located in Grundy County, Missouri at coordinates 40.0693°N, 93.6380°W. USGS site number: 06899500. Data is provided by the U.S. Geological Survey and the National Weather Service.

On This River

More Resources

Source & Notes

Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey