Llano River near Mason, TX

Mason County, Texas · USGS gauge 08150700 · NWS MLRT2 · Llano River flood status · Texas river levels

Is Llano River near Mason, TX flooding right now?

Llano River near Mason, TX measured 6.08 ft on 2026-09-22 23:30:00 UTC. That observation was 11.9 ft below its 18 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

6.08 ft

as of 19 min ago

Streamflow

168 cfs

data refreshed 3 min ago

Minor flooding here begins at 18 ft, with major flooding at 28 ft. The highest crest on record was 46 ft on Fri, Jun 14, 1935.

Streamflow outlook

NOAA National Water Model forecast, issued 12 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	11 ft	4.9 ft below
Minor flood	18 ft	11.9 ft below
Moderate flood	24 ft	17.9 ft below
Major flood	28 ft	21.9 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
46 ft	1935-06-14
37 ft	1980-09-08
34.21 ft	2018-10-16
32 ft	2000-11-04
31.33 ft	2008-06-13

Nearby gauges

Gauge	Distance	County
Beaver Creek near Mason, TX	1.4 mi	Mason County
San Saba River near Brady, TX	25.5 mi	McCulloch County
Llano River at Llano, TX	26.8 mi	Llano County
Pedernales River near Fredericksburg, TX	33.5 mi	Gillespie County
Brady Creek at Brady, TX	35.6 mi	McCulloch County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast