Guadalupe River below Comal
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 04/03/2025 5:00 AM CDTOfficial Forecast (FCST) 04/02/2025 8:01 AM CDTRecord: 39.5 ftCATEGORY STAGE 
Major Flooding 20 ft Moderate Flooding 14 ft Minor Flooding 13 ft Action 13 ft Reliability of the Forecast:
NOTE: 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.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 38 - Life threatening, extremely dangerous flooding below Canyon Dam to below Gonzales causes widespread residential and commercial flooding with the potential to drown people. Sleeping campers, autos and any gear along river road below Canyon Dam to above New Braunfels can be washed downstream.
- 35 - Widespread disastrous flooding washes homes downstream in New Braunfels and Seguin. Lowest homes along Lakes Dunlap and McQueeney will flood severely. Flooding is life threatening along river road above New Braunfels. Many secondary and primary roads are impassable and people are cut off.
- 32 - The Guadalupe River in New Braunfels is life threatening with widespread residential flooding. There is very dangerous flooding of camps and facilities below Canyon Dam to below Seguin. River Road is under tens of feet of water in most areas, and flows are life threatening to campers along the river.
Gauge Location
Recent Crests
| 1. | 15.40 ft | on 10-14-2021 |
| 2. | 14.33 ft | on 06-01-2016 |
| 3. | 24.95 ft | on 10-30-2015 |
| 4. | 29.65 ft | on 06-09-2010 |
| 5. | 22.17 ft | on 11-22-2004 |
Recent Crests
| 1. | 15.40 ft | on 10-14-2021 |
| 2. | 14.33 ft | on 06-01-2016 |
| 3. | 24.95 ft | on 10-30-2015 |
| 4. | 29.65 ft | on 06-09-2010 |
| 5. | 22.17 ft | on 11-22-2004 |
| 6. | 13.06 ft | on 11-22-2004 |
| 7. | 25.28 ft | on 07-06-2002 |
| 8. | 38.54 ft | on 10-17-1998 |
| 9. | 12.80 ft | on 06-28-1997 |
| 10. | 10.06 ft | on 11-01-1995 |
| 11. | 12.57 ft | on 05-30-1995 |
| 12. | 11.94 ft | on 05-15-1994 |
| 13. | 12.45 ft | on 01-15-1994 |
| 14. | 15.11 ft | on 05-05-1993 |
| 15. | 14.08 ft | on 03-04-1992 |
| 16. | 36.55 ft | on 05-11-1972 |
| 17. | 22.00 ft | on 10-21-1959 |
| 18. | 32.00 ft | on 09-10-1952 |
| 19. | 35.00 ft | on 06-15-1935 |
| 20. | 33.50 ft | on 07-03-1932 |
| 21. | 22.40 ft | on 04-22-1929 |
| 22. | 28.60 ft | on 09-10-1921 |
| 23. | 25.70 ft | on 08-23-1919 |
| 24. | 27.20 ft | on 09-17-1915 |
| 25. | 39.50 ft | on 12-13-1913 |
| 26. | 39.50 ft | on 08-08-1869 |
Historic Crests
| 1. | 39.50 ft | on 08-08-1869 |
| 2. | 39.50 ft | on 12-13-1913 |
| 3. | 38.54 ft | on 10-17-1998 |
| 4. | 36.55 ft | on 05-11-1972 |
| 5. | 35.00 ft | on 06-15-1935 |
Historic Crests
| 1. | 39.50 ft | on 08-08-1869 |
| 2. | 39.50 ft | on 12-13-1913 |
| 3. | 38.54 ft | on 10-17-1998 |
| 4. | 36.55 ft | on 05-11-1972 |
| 5. | 35.00 ft | on 06-15-1935 |
| 6. | 33.50 ft | on 07-03-1932 |
| 7. | 32.00 ft | on 09-10-1952 |
| 8. | 29.65 ft | on 06-09-2010 |
| 9. | 28.60 ft | on 09-10-1921 |
| 10. | 27.20 ft | on 09-17-1915 |
| 11. | 25.70 ft | on 08-23-1919 |
| 12. | 25.28 ft | on 07-06-2002 |
| 13. | 24.95 ft | on 10-30-2015 |
| 14. | 22.40 ft | on 04-22-1929 |
| 15. | 22.17 ft | on 11-22-2004 |
| 16. | 22.00 ft | on 10-21-1959 |
| 17. | 15.40 ft | on 10-14-2021 |
| 18. | 15.11 ft | on 05-05-1993 |
| 19. | 14.33 ft | on 06-01-2016 |
| 20. | 14.08 ft | on 03-04-1992 |
| 21. | 13.06 ft | on 11-22-2004 |
| 22. | 12.80 ft | on 06-28-1997 |
| 23. | 12.57 ft | on 05-30-1995 |
| 24. | 12.45 ft | on 01-15-1994 |
| 25. | 11.94 ft | on 05-15-1994 |
| 26. | 10.06 ft | on 11-01-1995 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 609.58 ft |
| moderate Flooding | 603.58 ft |
| minor Flooding | 602.58 ft |
| action | 602.58 ft |
| Latest Value | 598.88 ft |
| Gauge Zero | 589.58 ft |
Gauge Photos
No Images Found
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.