Llano River near Mason, TX

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

Nearby: river levels near Mason

Is Llano River near Mason, TX flooding right now?

Llano River near Mason, TX measured 11.21 ft on 2026-11-11 21:45:00 UTC. That observation was 6.8 ft below its 18 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
11.21 ft
as of 23 min ago
Streamflow
3,660 cfs
data refreshed 7 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.

Flood forecast

NWS forecast, issued 3 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action11 ft0.2 ft ABOVE
Minor flood18 ft6.8 ft below
Moderate flood24 ft12.8 ft below
Major flood28 ft16.8 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

StageDate
46 ft1935-06-14
37 ft1980-09-08
34.21 ft2018-10-16
32 ft2000-11-04
31.33 ft2008-06-13

Last 7 days

flood stage 18 ft

Past 7 days · 6.54–19.46 ft

Nearby gauges

GaugeDistanceCounty
Beaver Creek near Mason, TX1.4 miMason County
San Saba River near Brady, TX25.5 miMcCulloch County
Llano River at Llano, TX26.8 miLlano County
Pedernales River near Fredericksburg, TX33.5 miGillespie County
Brady Creek at Brady, TX35.6 miMcCulloch 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