Navidad River at Sublime, TX
River level and flood forecast · Lavaca County
Normal4.6 ftas of Mon 2 PM
The river is 19.4 ft below flood stage (24 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 | 26 ft |
| Moderate flood stage | 25 ft |
| Flood stage | 24 ft |
| Action stage | 20 ft |
| Record crest (June 1, 1940) | 40 ft |
What floods at each level
From the National Weather Service, highest first.
- 34 ftMajor lowland flooding continues with widespread inundation of the floodplain. The river is three quarters mile wide near Highway 90A and several homes along the river are flooded. Primary and secondary roads and low bridges are inundated and closed. Livestock in the floodplain are cut off and potentially drowned.
- 33 ftMajor lowland flooding continues with the river one third mile wide at the Highway 90A bridge. Primary and secondary roads near the gauge are flooded and low bridges are very dangerous to auto traffic. Livestock are vulnerable to being cut off and drowned in the floodplain.
- 32 ftMajor lowland flooding continues with the river one quarter mile wide at the Highway 90A bridge threatening livestock from the headwaters to below Speaks.
- 26 ftMajor lowland flooding begins as two channels under the Highway 90A bridge merge becoming one channel several hundered yards wide. The lowest homes in the floodplain downstream near Vienna and in Jackson County are threatened.
- 25 ftModerate lowland flooding begins threatening livestock, equipment, primary and secondary roads, and low bridges near the river.
- 24 ftMinor lowland flooding begins making secondary roads and low bridges near the river dangerous. Livestock and equipment should be removed from flood prone areas.
- 20 ftFlows exceed low-lying sections of both banks in the main channel.
Highest crests on record
- 40 ft — June 1, 1940
- 39 ft — July 1, 1936
- 36.38 ft — August 28, 2017
- 36.05 ft — September 13, 1974
- 33.76 ft — November 23, 2004
Recent crests: 26.21 ft (December 9, 2018) · 36.38 ft (August 28, 2017) · 31.81 ft (April 19, 2016) · 28.3 ft (June 18, 2015) · 25.01 ft (May 27, 2015)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SBMT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.