San Marcos River at Luling, TX
Is San Marcos River at Luling, TX flooding right now?
San Marcos River at Luling, TX measured 3.81 ft on 2026-11-11 19:45:00 UTC. That observation was 16.2 ft below its 20 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
3.81 ft
Streamflow
102 cfs
Minor flooding here begins at 20 ft, with major flooding at 30 ft. The highest crest on record was 41.85 ft on Sun, Oct 18, 1998.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 11 ft | 7.2 ft below |
| Minor flood | 20 ft | 16.2 ft below |
| Moderate flood | 24 ft | 20.2 ft below |
| Major flood | 30 ft | 26.2 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 41.85 ft | 1998-10-18 |
| 40.4 ft | 1869-01-01 |
| 37.1 ft | 1929-05-29 |
| 36.58 ft | 2015-05-25 |
| 36.27 ft | 2015-10-31 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Plum Creek at US183 near Luling, TX | 3.2 mi | Caldwell County |
| Plum Creek near Luling, TX | 3.7 mi | Caldwell County |
| Guadalupe River at Creek 143 near Gonzales, TX | 12.9 mi | Gonzales County |
| San Marcos River near Martindale, TX | 16.2 mi | Caldwell County |
| Guadalupe River at FM 1117 near Seguin, TX | 16.5 mi | Guadalupe County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.