Guadalupe River above Comal River at New Braunfels, TX
River level and flood forecast · Comal County
Normal2.0 ftas of Mon 2:45 PM
The river is 5.0 ft below flood stage (7 ft).
Forecast to hold near 2.0 ft through Sat, Oct 17, 7 AM.
Flow: 138 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:11 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 7 ft |
| Action stage | 6 ft |
| Record crest (August 8, 1869) | 38 ft |
What floods at each level
From the National Weather Service, highest first.
- 33 ftDisastrous, life threatening flooding reaches many homes in New Braunfels. All roads, streets and bridges in the flood plain below Canyon Dam to below Seguin are severely flooded and dangerous. RV and mobile home parks below New Braunfels are inundated. Camping areas along River Road below Canyon Dam will be under more than 25 feet of water.
- 29 ftDisastrous life threatening flooding has the potential to drown people in the flood plain below Canyon Dam to below Seguin. Recreational camps along River Road below Canyon Dam flood severely. River Road is impassable. Visitors should evacuate on foot away from the river. Hundreds of homes in New Braunfels, Treasure Island and Seguin flood severely with some homes washing downstream.
- 25 ftDisastrous life threatening flooding occurs below Canyon Dam to below Seguin. Roads near the river flood severely and are extremely dangerous to motorists. Campgrounds along River Road flood. Much of River Road is impassable and extremely dangerous for auto traffic. Visitors should not evacuate in cars on River Road. Evacuate on foot directly away from the river up canyon walls. Lowest homes in New Braunfels flood severely.
- 21 ftMajor flooding puts 4 feet of water over the Common Street bridge. River Road upstream and adjoining campgrounds are severely flooded and extremely dangerous. Lowest homes in New Braunfels are threatened. The bridge at Gruene is under more than 15 feet of water.
- 17 ftThe Common Street bridge floor over the Guadalupe River floods. Lowest homes are threatened. Much of River Road floods. Sleeping campers, autos and gear on the Guadalupe River banks can wash downstream.
- 14 ftMajor lowland flooding threatens lowest homes. Numerous roads, streets and low bridges are flooded. River Road and camping areas upstream are severely flooded and extremely dangerous.
- 12.5 ftSeveral sections of River Road flood. Autos, gear and sleeping campers can wash downstream from low banks adjacent to the river. Flow is well into the flood plain through New Braunfels.
- 10 ftModerate lowland floodng closes several sections of River Road. Campers autos and equipment along the river can be washed downstream.
- 7 ftMinor lowland flooding reaches the lowest sections of River Road above New Braunfels threatening sleeping campers, autos and gear on low areas near and above Gruene. The bridge on Gruene Road becomes flooded and impassable.
- 6 ftMinor lowland flooding reaches the lower portions of campsites along River Road. Water reaches the bridge floor at Gruene Road.
- 5 ftFlow exceeds lowest banks.
Highest crests on record
- 38 ft — August 8, 1869
- 38 ft — December 13, 1913
- 35.57 ft — October 17, 1998
- 32.95 ft — June 15, 1935
- 32.48 ft — July 3, 1932
Recent crests: 12.69 ft (October 14, 2021) · 22.52 ft (October 30, 2015) · 27.26 ft (June 9, 2010) · 16.57 ft (November 22, 2004) · 28.95 ft (July 6, 2002)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NBRT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.