Red Flag Warning
2026-04-13T20:00:00-06:00

* AFFECTED AREA...Fire Weather Zones 214, 216, 238, 241, 242, 246 and 247. * TIMING...From 11 AM this morning to 8 PM MDT this evening. * WINDS...Southwest 10 to 20 mph with gusts around 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.

BLANCO RIVER

Last Updated: April 13, 2026

Total streamflow across the Blanco River was last observed at 18 cfs, and is expected to yield approximately 35 acre-ft of water today; about 94% of normal. Average streamflow for this time of year is 19 cfs, with recent peaks last observed on 2025-06-13 when daily discharge volume was observed at 1,222 cfs.

Maximum discharge along the river is currently at the Blanco Rv At Halifax Rch Nr Kyle reporting a streamflow rate of 7.99 cfs. However, the streamgauge with the highest stage along the river is the Blanco Rv At San Marcos with a gauge stage of 7.66 ft. This river is monitored from 5 different streamgauging stations along the Blanco River, the highest being situated at an altitude of 916 ft, the Blanco Rv At Fischer Store Rd Nr Fischer.

Get the latest River Levels, Streamflow, and Hydrology for in River flows across 5 streamgages of the Blanco River


15-Day Long Term Forecast


River Details

Last Updated 2026-04-13
Discharge Volume 35 ACRE-FT
Streamflow 17.7 cfs
Past 24 Hours: +2.95 cfs (+20.0%)
Percent of Normal 94.48%
Maximum 1,222.0 cfs
2025-06-13
Seasonal Avg cfs
       
River Streamflow Levels
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Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Blanco Rv At Fischer Store Rd Nr Fischer
USGS 08170950 		2 cfs 3.32 ft 0
Blanco Rv At Wimberley
USGS 08171000 		8 cfs 3.57 ft 45.07
Blanco Rv At Halifax Rch Nr Kyle
USGS 08171290 		8 cfs 0.86 ft 7.1
Blanco Rv Nr Kyle
USGS 08171300 		0 cfs 2.97 ft None
Blanco Rv At San Marcos
USGS 08171350 		0 cfs 7.66 ft None
Seasonal Discharge Comparison
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Maximum Streamflow Discharge
Streamflow Elevation Profile

It is known for its crystal-clear waters and is a popular spot for recreational activities such as swimming, kayaking, and fishing. The river is named after the Spanish word for "white," as the limestone riverbed gives the water a milky appearance. The river also has a rich history, as it was once used by Native Americans and early settlers as a source of water and transportation. In terms of hydrology, the Blanco River is known for its flash flooding, which can be dangerous for those in the area. There are several reservoirs and dams along the river, including the Blanco and Wimberley Dams, which are used for agricultural purposes and to control flooding.