Rivers in Texas
Guadalupe River at Seguin
Below flood stage
-0.96ftStage
Observed Wed, Sep 23, 2:15 AM CDT
- Flood stage
- 19.00 ft
- Record crest
- 36.80 ft1998
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 26.00 ft |
| Moderate flood | 22.00 ft |
| Minor flood | 19.00 ft |
| Action | 17.00 ft |
- 32.00 ftSeveral homes in low areas of the flood plain in Seguin are destroyed. Several structures are washed downstream. Nearly all of Treasure Island at Lake McQueeny is under water with homes severely flooded and damaged. Livestock in the flood plain above Seguin to below Cuero are cut off and potentially drowned.
- 29.00 ftWidespread disastrous flooding destroys lowest homes in the flood plain and damages many more. Numerous roads and bridges are severely flooded and dangerous.
- 26.00 ftMajor flooding damages several homes in the Glen Cove Subdivision and downstream. Numerous roads, streets and bridges are extremely dangerous. Livestock should be moved from the flood plain immediately.
- 22.00 ftModerate lowland flooding threatens homes in the Glen Cove Subdivdision in Seguin. Roads and low bridges near the river are flooded and dangerous. Runoff down Walnut Branch northwest of downtown Seguin threatens lowest homes and apartments.
- 19.00 ftMinor lowland flooding is in low areas of the flood plain approaching but not reaching lowest homes in Seguin. Runoff down Walnut Branch northwest of downtown Seguin is a threat to lowest homes and apartments. Flood waters have reached the lowest row of RV lots at the River Shade RV Park near the HWY 123 bridge.
- 17.00 ftWater starts to threaten RV lots closest to the river at the River Shafe RV Park near the HWY 123 bridge.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 7% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
18 crests on NOAA’s list since 1913.
| # | Date | Stage |
|---|---|---|
| 1 | October 18, 1998 | 36.80 ft |
| 2 | June 16, 1935 | 35.50 ft |
| 3 | September 11, 1952 | 33.90 ft |
| 4 | January 1, 1935 | 33.00 ft |
| 5 | May 11, 1972 | 32.80 ft |
| 6 | January 1, 1913 | 32.50 ft |
| 7 | November 22, 2004 | 31.00 ft |
| 8 | July 7, 2002 | 31.00 ft |
| 9 | September 27, 1973 | 27.00 ft |
| 10 | October 14, 2021 | 19.24 ft |
| 11 | July 5, 2025 | 9.22 ft |
| 12 | May 14, 2019 | 7.98 ft |
| 13 | March 28, 2018 | 7.91 ft |
| 14 | March 10, 2017 | 7.29 ft |
| 15 | May 12, 2020 | 4.52 ft |
| 16 | January 22, 2024 | 2.67 ft |
| 17 | March 29, 2023 | 0.95 ft |
| 18 | March 22, 2022 | 0.63 ft |
Most recent crests
- July 5, 2025: 9.22 ft
- January 22, 2024: 2.67 ft
- March 29, 2023: 0.95 ft
- March 22, 2022: 0.63 ft
- October 14, 2021: 19.24 ft
- May 12, 2020: 4.52 ft
- May 14, 2019: 7.98 ft
- March 28, 2018: 7.91 ft
- March 10, 2017: 7.29 ft
- November 22, 2004: 31.00 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the West Gulf River Forecast Center. Forecasts are issued routinely year-round. 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.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.