Major Flood
53 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: RGDT2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
51 ft
Minor Flood
50 ft
Action Stage
48 ft
What Floods at Each Level
66 ft
The Rio Grande river reaches lowest areas of Rio Grande City itself - widespread disastrous flooding inundates most of the roads and highways in and out of town - hundreds of homes are flooded
63.5 ft
Widespread flooding reaches much of the flood plain south of town and floods Highway 83 west of Rio Grande City - the Rio Grande river backs up the Arroyo Los Olmos and floods Highway 755 and threatens lowest homes in the Los Olmos flood plain
53 ft
Major lowland flooding damages irrigation pumps, equipment, roads and threatens livestock - bridges in the flood plain are severely flooded and become dangerous - the river backs up on the Arroyo Los Olmos and floods the lowest homes near Highway 83 and FM 755 as well as floods these roads.
50 ft
Irrigation pumps, equipment, livestock, roads and bridges flood in low areas
48 ft
Minor lowland flooding damages irrigation pumps and equipment if they are not moved
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 26, 1972 | 65.78 ft | — |
| Jul 11, 2010 | 57.63 ft | 111,518 cfs |
| Jul 16, 2010 | 57.31 ft | 105,025 cfs |
Flood Inundation Map
NOAA has mapped what areas flood at different water levels for this gauge. View the interactive flood inundation map →
About This Gauge
NWS LID
RGDT2
River
Rio Grande
County
Starr, TX
Coordinates
26.3667°N, 98.8028°W
Get Flood Alerts for Rio Grande
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.
Frequently Asked Questions
What is the current water level of Rio Grande at Rio Grande City?
The Rio Grande at Rio Grande City gauge is maintained by USGS 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 Rio Grande at Rio Grande City?
The NWS-defined flood stage for Rio Grande at Rio Grande City is 50 feet. Action stage begins at 48 feet. Moderate flooding starts at 51 feet, and major flooding at 53 feet.
How do I get alerts when Rio Grande rises?
Download StormCast free on Google Play, go to River Gauges, and add Rio Grande at Rio Grande City to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Rio Grande at Rio Grande City gauge located?
The gauge is located in Starr County, Texas at coordinates 26.3667°N, 98.8028°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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On This River
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Source & Notes
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.