Comal River at New Braunfels, TX
River level and flood forecast · Comal County
Normal3.7 ftas of Mon 2:45 PM
The river is 7.3 ft below flood stage (11 ft).
Forecast to hold near 3.7 ft through Sat, Oct 17, 7 AM.
Flow: 151 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 | 23 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 11 ft |
| Action stage | 9 ft |
| Record crest (October 17, 1998) | 39.28 ft |
What floods at each level
From the National Weather Service, highest first.
- 36 ftLife threatening flooding. Tens of homes destroyed, hundreds severely damaged in New Braunfels to below Seguin. Turbulent flow is hundreds of yards wide, trapping residents in homes and autos. Roads, streets and bridges flood rapidly to severe levels.
- 33 ftDisastrous flooding is life threatening. Flow is well into residential areas and can trap people in their homes. Roads and streets are severely flooded and extremely dangerous.
- 30 ftFlooding is life threatening. Several homes are flooded in the Comal River flood plain. Lowest businesses flood near San Antonio Street. Many people are cut off as numerous streets and roads flood and are extremely dangerous.
- 26 ftMajor flooding reaches lowest residences in New Braunfels. Numerous streets and bridges are flooded and very dangerous. Businesses near San Antonio Street flood.
- 23 ftMajor flooding impacts the tube chute at Prince Solms Park and floods the lower deck of a restuarant downstream. Residences are threatened downstream and upstream. Numerous roads, streets and bridges are very dangerous.
- 19 ftModerate flooding threatens lowest businesses in the vicinity of San Antonio Street. Numerous secondary roads and streets in the Comal River flood plain are flooded in New Braunfels.
- 15 ftModerate lowland flooding closes many secondary roads and streets making them and low bridges dangerous to motorists. The tube chute at Prince Solms Park is flooded to the walkway across the low dam.
- 11 ftMinor lowland flooding extends into low areas near the tube chute at Prince Solms Park above San Antonio Street and low areas of the flood plain.
Highest crests on record
- 39.28 ft — October 17, 1998
- 37.65 ft — October 17, 1870
- 36.91 ft — July 8, 1869
- 36.55 ft — May 11, 1972
- 36.14 ft — September 11, 1952
Recent crests: 13.6 ft (June 12, 2025) · 11.54 ft (October 14, 2021) · 20.32 ft (October 30, 2015) · 28.64 ft (June 9, 2010) · 22.43 ft (November 22, 2004)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NBCT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.