Frio River at Tilden, TX
River level and flood forecast · McMullen County
Normal0.9 ftas of Mon 1:15 PM
The river is 21.1 ft below flood stage (22 ft).
Flow: 0 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 27 ft |
| Moderate flood stage | 26 ft |
| Flood stage | 22 ft |
| Action stage | 12 ft |
| Record crest (July 10, 2002) | 30.06 ft |
What floods at each level
From the National Weather Service, highest first.
- 38.44 ftThis is the flood of record outside period of record, occurring on July 1932.
- 30.06 ftThis is the flood of record which occurred on July 10 2002. Disastrous flooding of commercial and residential buildings in Tilden.
- 29.8 ftMajor flooding occurs. Disastrous flooding of commercial and residential buildings in Tilden. Restuarant on the right bank of the Frio River had 3 to 4 feet of water in it.
- 29.18 ftThis is similar to the flood on June 9 1937. The restaurant had 3 feet of water inside. Numerous homes were flooded.
- 27 ftMajor flooding occurs. Numerous residences and businesses flood in Tilden, requiring persons vulnerable to flooding to be evacuated. Lowland flooding of crops and pastureland traps and potentially drowns livestock. Most roads near the river are flooded and dangerous. Water reaches the parking lot and doors of the cafe.
- 26 ftModerate flooding occurs. The flow is to the slab elevation of the lowest businesses and homes in Tilden. Numerous roads and low bridges flood and become very dangerous to motorists. Hundreds of livestock are trapped and potentially drowned in the flood plain, below Derby to the Choke Canyon Reservoir.
- 22 ftMinor lowland flooding of crops and pastureland occurs. Secondary roads and low bridges are also flooded.
- 20 ftOverbank conditions below Derby to Choke Canyon Reservoir occur, and floods the lowest secondary roads and bridges near the river.
- 17 ftOverbank conditions occur into lowest areas of the flood plain.
- 12 ftThe river reaches bankfull stage.
Highest crests on record
- 30.06 ft — July 10, 2002
- 30.03 ft — September 11, 2002
- 29.8 ft — June 28, 1997
- 29.7 ft — July 22, 2026
- 29.56 ft — June 28, 1997
Recent crests: 29.7 ft (July 22, 2026) · 5.36 ft (September 10, 2023) · 12.19 ft (August 19, 2022) · 4.18 ft (August 9, 2021) · 8.31 ft (July 10, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (TIDT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.