San Gabriel River at Georgetown South Fork
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
- Downstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 07/05/2025 11:00 PM CDTOfficial Forecast (FCST) 07/05/2025 7:17 PM CDTRecord: 41 ftCATEGORY STAGE Major Flooding 26 ft Moderate Flooding 13 ft Minor Flooding 9 ft Action 5 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
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
- 26 - Major lowland flooding closes many streets and roads. Much of the city park downstream floods. Lowest homes above Georgetown to Granger Lake are threatened.
- 23 - Moderate lowland flooding inundates many secondary and primary roads near the San Gabriel River. Facilities and equipment well into the flood plain are flooded. Residents of lowest homes in the flood plain above Georgetown to Granger Lake should monitor NOAA Weather Radio for developing heavy rain and flood conditions.
- 20 - Moderate lowland flooding closes secondary and primary roads near the river. The city park is severely flooded. Livestock and equipment should be moved from the flood plain from the headwaters to Granger Lake.
Gauge Info
Coordinates | 30.6256, -97.6908 |
RFC | WGRFC |
State | TX |
WFO | EWX |
County | Williamson |
Data Provider(s) | |
US Geological Survey | USGS--Water Resources of the United States |
USGS | 08104900 |
Gauge Location
Recent Crests
1. | 6.78 ft | on 05-07-2025 | |
2. | 9.29 ft | on 05-08-2019 | |
3. | 23.93 ft | on 09-22-2018 | |
4. | 11.26 ft | on 10-31-2015 | (P) |
5. | 15.75 ft | on 05-26-2015 |
Recent Crests
1. | 6.78 ft | on 05-07-2025 | |
2. | 9.29 ft | on 05-08-2019 | |
3. | 23.93 ft | on 09-22-2018 | |
4. | 11.26 ft | on 10-31-2015 | (P) |
5. | 15.75 ft | on 05-26-2015 | |
6. | 17.12 ft | on 05-24-2015 | |
7. | 21.98 ft | on 09-08-2010 | |
8. | 31.65 ft | on 06-27-2007 | |
9. | 15.53 ft | on 11-17-2004 | |
10. | 27.06 ft | on 11-15-2001 | |
11. | 16.65 ft | on 10-17-1998 | |
12. | 12.28 ft | on 06-09-1997 | |
13. | 19.94 ft | on 02-03-1986 | |
14. | 24.60 ft | on 09-03-1981 | |
15. | 41.00 ft | on 04-24-1956 |
Historic Crests
1. | 41.00 ft | on 04-24-1956 |
2. | 31.65 ft | on 06-27-2007 |
3. | 27.06 ft | on 11-15-2001 |
4. | 24.60 ft | on 09-03-1981 |
5. | 23.93 ft | on 09-22-2018 |
Historic Crests
1. | 41.00 ft | on 04-24-1956 | |
2. | 31.65 ft | on 06-27-2007 | |
3. | 27.06 ft | on 11-15-2001 | |
4. | 24.60 ft | on 09-03-1981 | |
5. | 23.93 ft | on 09-22-2018 | |
6. | 21.98 ft | on 09-08-2010 | |
7. | 19.94 ft | on 02-03-1986 | |
8. | 17.12 ft | on 05-24-2015 | |
9. | 16.65 ft | on 10-17-1998 | |
10. | 15.75 ft | on 05-26-2015 | |
11. | 15.53 ft | on 11-17-2004 | |
12. | 12.28 ft | on 06-09-1997 | |
13. | 11.26 ft | on 10-31-2015 | (P) |
14. | 9.29 ft | on 05-08-2019 | |
15. | 6.78 ft | on 05-07-2025 |
Vertical Datum Table
type | NAVD88 |
---|---|
major Flooding | 713.94 ft |
moderate Flooding | 700.94 ft |
minor Flooding | 696.94 ft |
action | 692.94 ft |
Latest Value | 698.07 ft |
Gauge Zero | 687.94 ft |
Gauge Photos
No Images Found
Probability Information
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.