Medina River near Somerset, TX
River level and flood forecast · Bexar County
Normal4.1 ftas of Mon 2:45 PM
The river is 13.9 ft below flood stage (18 ft).
Flow: 9 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 24 ft |
| Moderate flood stage | 22 ft |
| Flood stage | 18 ft |
| Action stage | 15 ft |
| Record crest (July 6, 2002) | 42.19 ft |
What floods at each level
From the National Weather Service, highest first.
- 35 ftHighway 16 floods.
- 29.39 ftFlood of Record (07/17/1973).
- 28.2 ftFood of 05/30/1987 - Many homes flooded from above Von Ormy downstream to below Peaesall Road - Flow 26,000 CFS.
- 24 ftMajor flooding reaches the Highway 16 bridge floor. Water reaches homes and businesses near Von Ormy upstream (16,000 CFS).
- 23.4 ftJune 23, 1997 03:15 AM (14,800 CFS) - No structural damage reported below Medina Lake to the San Antonio River confluence.
- 22.7 ftOctober 18, 1998 15:15 PM (13,500 CFS) - No reported structural flooding below Medina Lake to the San Antonio River confluence. Gauge is between Medio Creek and Leon Creek inflows.
- 21 ftRating flattens considerably - Flow into flood plain.
- 18 ftMinor flooding threatens buildings in campground at confluence of Medina River and Medio Creek.
- 15 ftWater reaches slab of Knights of Columbus business office at Medina River and Pearsall Road upstream near Von Ormy.
- 12 ftBanckfull.
Highest crests on record
- 42.19 ft — July 6, 2002
- 22.08 ft — October 24, 2002
- 18.19 ft — September 23, 2018
- 17.1 ft — May 2, 2021
- 15.29 ft — October 14, 2021
Recent crests: 15.29 ft (October 14, 2021) · 17.1 ft (May 2, 2021) · 18.19 ft (September 23, 2018) · 22.08 ft (October 24, 2002) · 42.19 ft (July 6, 2002)
Up and down the river, and nearby
- UpstreamMedina River near Macdona, TX
- DownstreamMedina River at San Antonio US 281S, TX
- Leon Creek at I-35S near San Antonio, TX
- San Antonio River at Loop 410, TX
- San Antonio River at Mitchell Street, TX
- Salado Creek at Loop 13, TX
- Leon Creek at Loop 410 near Leon Valley, TX
- San Antonio River at Elmendorf, TX
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SMMT2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.