Beaver Creek (Llano River Basin) near Mason, TX
River level and flood forecast · Mason County
Normal6.3 ftas of Mon 3 PM
The river is 10.7 ft below flood stage (17 ft).
Flow: 3 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 | 25 ft |
| Moderate flood stage | 20 ft |
| Flood stage | 17 ft |
| Action stage | 14 ft |
| Record crest (August 3, 1978) | 24 ft |
What floods at each level
From the National Weather Service, highest first.
- 25 ftMajor flooding will occur. Water will begin to reach the bridge on Highway 87.
- 20 ftModerate lowland flooding will occur. Several secondary roads and low water crossings will be flooded.
- 17 ftMinor lowland flooding will occur. Secondary roads and low water crossings will be flooded.
Highest crests on record
- 24 ft — August 3, 1978
- 19.6 ft — October 28, 1996
- 19.45 ft — October 8, 1997
- 17.59 ft — October 16, 2018
- 17.52 ft — July 16, 2026
Recent crests: 17.52 ft (July 16, 2026) · 17.59 ft (October 16, 2018) · 11.16 ft (November 15, 2001) · 19.45 ft (October 8, 1997) · 19.6 ft (October 28, 1996)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MBCT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.