Rio Grande at Falcon Lake
Texas — Water Level & Flood Stage
Located in Starr County, Texas on the Rio Grande. Live water level data from USGS, updated every 15 minutes.
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: FALT2). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
314.2 ft
Moderate Flood
306.7 ft
Minor Flood
301.2 ft
Action Stage
299 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
307 ft
THE LAKE LEVEL IS SIX FEET ABOVE NORMAL POOL - BOATS, DOCKS, AND GEAR ARE INUNDATED WITH SEVERE DAMAGES UNLESS REMOVED.
301.2 ft
THE LAKE LEVEL IS AT NORMAL POOL - BOATS CAN BE DAMAGED AND DOCKS AND GEAR INUNDATED.
299 ft
THE LAKE LEVEL IS TWO FEET BELOW NORMAL POOL - BOATS ARE DAMAGED AND DOCKS INUNDATED UNLESS TIES ARE LOOSENED.
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 |
|---|---|---|
| Jul 17, 2010 | 309.31 ft | — |
| Jul 17, 2010 | 309.31 ft | — |
| Oct 18, 1958 | 308.1 ft | — |
| Oct 18, 1958 | 308.1 ft | — |
| Sep 29, 2010 | 304.66 ft | — |
About This Gauge
NWS LID
FALT2
River
Rio Grande
County
Starr, TX
Coordinates
26.5597°N, 99.1667°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 Falcon Lake?
The Rio Grande at Falcon Lake 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 Falcon Lake?
The NWS-defined flood stage for Rio Grande at Falcon Lake is 301.2 feet. Action stage begins at 299 feet. Moderate flooding starts at 306.7 feet, and major flooding at 314.2 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 Falcon Lake 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 Rio Grande at Falcon Lake gauge located?
The gauge is located in Starr County, Texas at coordinates 26.5597°N, 99.1667°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.