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This probabilistic forecast is issued by the West Gulf River Forecast Center.
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Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey
About this graph
Forecasts for the Medina River at San Antonio US 281S are issued as needed during times of high water, but are not routinely available.
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Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 24
Flood Stage: 20
Action Stage: 16
Low Stage (in feet): -9999

Historic Crests
(1) 55.65 ft on 07/04/2002
(2) 55.00 ft on 07/01/1900
(3) 49.47 ft on 10/18/1998
(4) 43.59 ft on 07/17/1973
(5) 41.57 ft on 08/29/1946
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(P): Preliminary values subject to further review.

Recent Crests
(1) 22.77 ft on 10/14/2021
(2) 27.93 ft on 07/07/2021
(3) 26.62 ft on 06/03/2016
(4) 20.91 ft on 05/24/2015
(5) 32.37 ft on 05/26/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
28 Major flooding puts the Farm to Market 1937 bridge floor under eight feet of water. Flow approaches homes downstream near Losoya. Livestock are cut off and potentiallly drowned in the flood plain.
24 Moderate lowland flooding floods secondary roads and bridges making them dangerous to traffic.
20 Minor lowland flooding reaches the Farm to Market 1937 bridge floor.
16 Overbank conditions with water extending into lowest areas of the flood plain with no significant damage.

Other Real-time and/or Archive Data Sources:

Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Austin/San Antonio Weather Forecast Office
2090 Airport Road
New Braunfels, TX 78130
(830) 629-0130
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Page last modified: 2-Nov-2020 7:29 PM
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